WO2002002316A1 - Produit stratifié de mousse oléfine et son utilisation - Google Patents
Produit stratifié de mousse oléfine et son utilisation Download PDFInfo
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- WO2002002316A1 WO2002002316A1 PCT/JP2001/005623 JP0105623W WO0202316A1 WO 2002002316 A1 WO2002002316 A1 WO 2002002316A1 JP 0105623 W JP0105623 W JP 0105623W WO 0202316 A1 WO0202316 A1 WO 0202316A1
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- Prior art keywords
- weight
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- olefin
- thermoplastic elastomer
- ethylene
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/025—Polyolefin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/08—Cars
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249981—Plural void-containing components
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249986—Void-containing component contains also a solid fiber or solid particle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249987—With nonvoid component of specified composition
- Y10T428/249988—Of about the same composition as, and adjacent to, the void-containing component
- Y10T428/249989—Integrally formed skin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249987—With nonvoid component of specified composition
- Y10T428/249991—Synthetic resin or natural rubbers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249987—With nonvoid component of specified composition
- Y10T428/249991—Synthetic resin or natural rubbers
- Y10T428/249992—Linear or thermoplastic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249987—With nonvoid component of specified composition
- Y10T428/249991—Synthetic resin or natural rubbers
- Y10T428/249992—Linear or thermoplastic
- Y10T428/249993—Hydrocarbon polymer
Definitions
- the present invention relates to a skin foam laminate comprising an ultrafine thermoplastic elastomer foam or an ultrahigh molecular weight polyolefin resin or a thermoplastic elastomer composition as a base layer, and a use thereof.
- a natural rubber or a synthetic rubber is kneaded with a vulcanizing agent and a foaming agent, and then the kneaded material is molded into a predetermined shape and heated to form a vulcanized material. It is known that foaming is performed to obtain an elastomer (vulcanized rubber) foam.
- thermoplastic resin such as ethylene / vinyl acetate copolymer or low-density polyethylene, or a partially crosslinked thermoplastic elastomer composed of an olefin copolymer rubber and an olefin resin is used.
- a method using one According to this method, the above-described steps can be omitted.
- thermoplastic resins and thermoplastic elastomers The problem is that foam tends to be defoamed during foam molding, resulting in poor appearance, and the resulting foam has a low foaming ratio, and at most 1.5 times the foaming ratio, so it feels harder than rubber. There is a point.
- An object of the present invention is to solve the problems associated with the prior art, and is made of a recyclable olefin polymer, has a high expansion ratio, has a soft feel, and has good appearance and abrasion resistance.
- Another object of the present invention is to provide an olefin foam laminate excellent in durability, sliding properties, and especially abrasion resistance under bad conditions.
- the present invention relates to the following olefin foam laminates and uses.
- a base layer made of a foam (XF) of an olefin-based thermoplastic elastomer (X);
- a skin layer comprising the following resin or elastomer composition
- Y Ultrahigh molecular weight polyolefin resin having an intrinsic viscosity [7] measured in decalin at 135 ° C of 3.5 to 8.3 d 1 / g.
- Z Orefuin based thermoplastic Heras Tomah one (C) and a lubricant (Z L) Orefin thermoplastic elastomer first composition containing.
- a base layer comprising a foam (X F ) of an olefin-based thermoplastic elastomer (X);
- a skin layer comprising the following resin or elastomer composition;
- Y Ultrahigh molecular weight polyolefin resin having an intrinsic viscosity [77] of 3.5 to 8.3 d 1 / g measured in decalin at 135 ° C.
- Z 0.5 to 25 parts by weight of an organopolysiloxane (D), 0.5 to 10 parts by weight of a fluoropolymer (E), based on 100 parts by weight of the olefin thermoplastic elastomer (C)
- Antistatic agent (F) 0.5 to 10 parts by weight, polyolefin resin (G) 5 to 200 parts by weight, fatty acid amide 0.01 to 5 parts by weight, mineral oil 0.5 to 10 parts by weight, metal Soap 0.10 to 5 parts by weight, esters 0.01 to 5 parts by weight, calcium carbonate 0.01 to 5 parts by weight and silicate 0.0.0 1 to 5 parts by weight
- olefin thermoplastic elastomer (X) force The compression set (70 ° C, 22 hours) measured by JISK6262 is 60% or less, and the melt flow rate (2) measured by JISK71220.
- the ethylene / ⁇ -olefin copolymer (a_2) is a copolymer of ethylene, ⁇ -olefin and, if necessary, a non-conjugated polyene, and has a mono-viscosity ML 1 + 4 ( 1 00 ° C) Ca 3 ⁇ 4 from 90 to 25 0, an ethylene content of 70 to 9 5 mole 0/0 Ethylene- ⁇ -olebuin-based copolymer of
- the ultrahigh molecular weight polyolefin resin ( ⁇ ) is an ultrahigh molecular weight polyolefin resin having an intrinsic viscosity [7] measured in decalin at 135 ° C. of 3.5 to 8.3 d 1.
- Olefin foam laminate Olefin foam laminate
- foam (X F 1) consisting of a substrate layer of an ethylene-based thermoplastic elastomer one (A) consisting of,
- the ethylene / ⁇ -olefin copolymer (a_2) is a copolymer of ethylene, 0; -olefin and optionally used non-conjugated polyene, and has a ⁇ -viscosity ML 1 + 4 ( 1 00 ° C) Ca 90-25 0, ethylene content is ethylene ⁇ alpha-Orefuin copolymer of 70-9 5 mol 0/0,
- organopolysiloxane (D) 0.5 to 25 parts by weight of the organopolysiloxane (D) and 0.1 to 25 parts by weight of the organopolysiloxane (D) per 100 parts by weight of the olefinic thermoplastic elastomer (C).
- Olefin thermoplastic elastomer composition containing at least one lubricant (Z L ) selected from the group consisting of
- Olefin foam laminate Olefin foam laminate
- thermoplastic elastomer composition (a olefinic foam laminate in which a skin layer made of Z is laminated with:
- the ethylene / ⁇ -olefin copolymer (a-2) is a copolymer of ethylene, ⁇ - olefin and optionally used non-conjugated polyene, and has a viscosity of ML 1 + 4 (100 C) an ethylene- ⁇ - olefin copolymer having a power S of 90 to 250 and an ethylene content of 70 to 95 mol%,
- thermoplastic thermoplastic elastomer composition 0.5 to 25 parts by weight of organopolysiloxane (D) and 100 parts by weight of the above-mentioned thermoplastic thermoplastic elastomer composition ( ⁇ ) force 0.5 to 10 parts by weight and an antistatic agent (F) is an olefinic thermoplastic elastomer composition containing at least one selected from the group consisting of 0.5 to 10 parts by weight in the above ratio.
- Olefin foam laminate Olefin foam laminate
- the ethylene- ⁇ -olefin copolymer (a-2) is a copolymer of ethylene, ⁇ -olebuin and optionally used non-conjugated polyene, and has a viscosity of ML 1 + 4 ( 100 ° C) Power S 90 ⁇ 250, ethylene content 70 ⁇ 95 monole 0 /.
- thermoplastic thermoplastic elastomer composition ( ⁇ 2 ) is An olefin-based foam laminate, which is an olefin-type thermoplastic elastomer composition containing the polyolefin resin (G) in an amount of 5 to 200 parts by weight based on 100 parts by weight of the plastic elastomer (C).
- the Orefin thermoplastic elastomer first composition (Zeta 3) is, relative to Orefin based heat-friendly plastic elastomer one (C) 1 00 parts by weight of organopolysiloxane (D) 0. 5 ⁇ 2 5 parts by weight, fluorine-based Polymer ( ⁇ ) 0.5 to 10 parts by weight, antistatic agent
- Olefin foam laminate Olefin foam laminate
- Orefin-based thermoplastic elastomer (C) force An orefin-based thermoplastic elastomer obtained by dynamically heat-treating a mixture containing a crystalline polyolefin resin (c-1) and rubber (c-2).
- c-1 crystalline polyolefin resin
- c-2 crystalline polyolefin resin
- c-2 rubber
- Ethylene-based thermoplastic elastomer (A) is 100% by weight of polyethylene resin (a-1) and ethylene- ⁇ -olebuin-based copolymer (a_2)
- the foaming ratio of the foam ( XF 1 ) is 2 times or more.
- the olefin foam laminate according to any one of (1 2).
- thermoplastic thermoplastic elastomer (C) dynamically heat-treats a mixture containing the crystalline polyolefin resin (c-11) and the rubber (c-12) in the presence of a crosslinking agent.
- the Orefin thermoplastic elastomer one (J) is, polyolefin resin (j one 1) 5-6 0 parts by weight, and the ethylene and ⁇ - ethylene Orefin and a non-conjugated poly E down as required is copolymerized.
- thermoplastic thermoplastic elastomer obtained by dynamically heat-treating a mixture containing
- thermoplastic thermoplastic resin (K) has an orefin content of 50 to 100 mol% and a maleoleto flow rate (ASTM D-123 8-65 T, 230 (° C, 2.16 kg load) is 0.0 1-2 g / 10 min.
- the ultrahigh molecular weight polyolefin resin (Y) is an ultrahigh molecular weight polyolefin resin having an intrinsic viscosity [77] of 3.5 to 8.3 d1 Zg measured in decalin at 135 ° C.
- Olefin foam laminate Olefin foam laminate
- thermoplastic thermoplastic elastomer composition (X 2 ) containing 100 parts by weight of the thermoplastic thermoplastic elastomer (J) and 1 to 20 parts by weight of the thermoplastic thermoplastic resin (K).
- a base layer made of foam ( XF 2 );
- thermoplastic thermoplastic elastomer (J) force Polyolefin resin (j
- thermoplastic resin (K) has an orefin content of 50 to 50 or less.
- melt flow rate (ASTM D—123 8—65 T, 230.C, 2.16 kg load) is 0.01 to 2 g / 10 min.
- thermoplastic thermoplastic elastomer composition Z (E) 0.5 to 10 parts by weight, antistatic agent (F) 0.5 to: L 0 parts by weight, polyolefin resin (G) 5 to 200 parts by weight, fatty acid amide 0.01 to 5 parts by weight Parts, mineral oil 0.5 to 10 parts by weight, metal soap 0.05
- Olefin foam laminate Olefin foam laminate
- Olefin-based thermoplastic elastomer composition (X 2 ) containing 100 parts by weight of orefin-based thermoplastic elastomer (J) and! To 20 parts by weight of -olefin-based thermoplastic plastic (K) A base layer made of a foam ( XF 2 ) of
- thermoplastic thermoplastic elastomer composition a skin layer comprising a thermoplastic thermoplastic elastomer composition.
- thermoplastic thermoplastic elastomer obtained by dynamically heat-treating a mixture containing
- thermoplastic resin (K) has a resin content of 50 to 100 mono% and a menoleto flow rate (ASTM D-123 8-65 T, 230 ° C, 2.16 kg load) of 0.0 1-2 g / 10 min.
- thermoplastic thermoplastic elastomer composition was prepared by adding 0.5 to 25 parts by weight of an organopolysiloxane (D) to 100 parts by weight of the thermoplastic thermoplastic elastomer (c), and a fluoropolymer ( ⁇ ).
- 0.5 to 10 parts by weight and an antistatic agent (F) is an olefinic thermoplastic elastomer composition containing at least one selected from the group consisting of 0.5 to 10 parts by weight in the above ratio.
- thermoplastic thermoplastic elastomer composition (X 2 ) containing 100 parts by weight of the thermoplastic thermoplastic elastomer (J) and 1 to 20 parts by weight of the thermoplastic thermoplastic resin (K).
- the polyolefin resin (G) is contained in a proportion of 5 to 200 parts by weight with respect to 100 parts by weight of the above-mentioned thermoplastic thermoplastic elastomer composition (Z 2 ) and the thermoplastic thermoplastic elastomer (C). Olefin-based foam laminate, which is a plastic elastomer composition.
- thermoplastic elastomer (J) force Polyolefin resin (j-1) 5 to 60 parts by weight, and ethylene and ⁇ -olefin and non-conjugated Ethylene- ⁇ -olefin copolymer rubber copolymerized with ethylene (j-2) 40 to 95 parts by weight [where the (j-1) component and the (j-1-2) component The amount is 100 parts by weight.
- the Orefin type thermoplastic (K) is 50 to 1 00 Monore is Orefin content o / 0, melt Furore one preparative (AS TM D- 1 2 3 8- 6 5 T, 23 0 ° C, 2. 1 (1 kg load) is 0.01 to 2 gZ 10 min.
- Olefin foam laminate Olefin foam laminate
- Olefin-based thermoplastic elastomer (C) is obtained by dynamically heat-treating a mixture containing crystalline polyolefin resin (c_l) and rubber (c-2).
- the ultra-high molecular weight polyolefin resin (Y) is 135. Measured in C decalin The determined intrinsic viscosity [7] is 10-40 dl Zg and the ultra-high molecular weight polyolefin resin (y-1) is 15-40 parts by weight, and the intrinsic viscosity measured in decalin at 135 ° C [7;] Is 0.1 to 5 dlZg of polyolefin resin (y-2) 85 to 60 parts by weight [where the total amount of the (y_l) component and the (y_2) component is 100 parts by weight. ] The olefin foam laminate according to the above (20), (21), (23), (24) or (26), which is an ultrahigh molecular weight polyolefin resin composition containing:
- the ethylene thermoplastic elastomer (J) is an ethylene ⁇ -olefin copolymer rubber (j-12): 100 to 100 parts by weight of a softening agent (10 to 200 parts by weight)
- a softening agent 10 to 200 parts by weight
- a mixture of polyolefin resin (j-1) and ethylene- ⁇ -olefin copolymer rubber (j-2), or a softener ( The olefin foam laminate according to any one of the above (20) to (29), which is a thermoplastic elastomer composition obtained by dynamically heat-treating a mixture containing j_3) in the presence of a crosslinking agent. body.
- (3 2) includes a foam (X F2) force Orefin thermoplastic elastomer one (J) 1 00 parts by weight, and Orefin type thermoplastic (K) 1 to 20 parts by weight, and foaming agents (B) The foaming product according to any one of the above (20) to (31), which is a foam obtained by foaming the foaming composition (X 3 ). (3 3) Blowing agent (B) Strength The olefin-based foamed laminate according to the above (32), which is an organic or inorganic pyrolytic blowing agent.
- the content of the foaming agent (B) is 0.5 to 20 parts by weight based on 100 parts by weight of the total of the thermoplastic thermoplastic elastomer (J) and the thermoplastic thermoplastic resin (K).
- Orefin based foamed laminate according to any one of the foam to an expansion ratio of (X F2) is above (20) to more than twice (34).
- Olefin-based thermoplastic elastomer (C) force A mixture containing crystalline polyolefin resin (c-1) and rubber (c-12) is dynamically heat-treated in the presence of a crosslinking agent.
- a sliding member comprising the olefin foam laminate according to any one of the above (1) to (37).
- a weather strip for automobiles comprising the olefin foam laminate according to any one of (1) to (37).
- FIG. 1 is a weather strip for an automobile including the olefin foam laminate of the present invention.
- FIG. 3 is a perspective view of FIG. 3, with a cross section shown as an end face.
- FIG. 2 is a perspective view showing a method of a wear test with muddy water performed in the example.
- the thermoplastic thermoplastic elastomer (X) used as a raw material of the base material layer in the present invention is usually composed of a polypropylene polymer, and has a compression set (70 ° C., 22 hours) measured by JISK 6262. 60% or less, preferably 15 to 55%, the melt flow rate (230 ° C, 1 Okg load) measured by JISK 7120 is 0.1 g / 1 O min or more, preferably It is preferable that the value is from l to 300 g Z l O min.
- the olefin polymer constituting the olefin thermoplastic elastomer (X) is usually an olefin homopolymer, an olefin copolymer, or an olefin copolymer having 2 to 30 carbon atoms, preferably 2 to 20 carbon atoms. It is preferable to use a copolymer with the above monomer, and these may be used in combination of two or more.
- the monomer include ⁇ -olefin, cyclic olefin, conjugated polyene, and non-conjugated polyene. Among these, ⁇ -olefin and non-conjugated polyene are particularly preferred.
- the vinyl acetate may Rukoto used other monomers also 1 0 mole 0/0 the range of such E chill ⁇ chestnut rate.
- the olefinic thermoplastic elastomer (X) may be a mixture of two or more types of olefinic polymers.
- a mixture of at least one type of an olefinic polymer having a low comonomer content and at least one type of an olefinic polymer having a high comonomer content is particularly preferable.
- thermoplastic thermoplastic elastomer (X) used in the present invention is not particularly limited as long as it is crosslinked or non-crosslinked, as long as the compression set and the melt flow rate satisfy the above conditions.
- examples of the olefin thermoplastic elastomer (X) used in the present invention include 5 to 60 parts by weight of a polyethylene resin ( a -1) described later and an ethylene / ⁇ -olefin copolymer (a-2) 40 to 9 5 parts by weight [where the total amount of the component (a-1) and the component (a-2) is 100 parts by weight.
- thermoplastic thermoplastic elastomer comprising 100 parts by weight of an ethylene thermoplastic elastomer (A) or an thermoplastic thermoplastic elastomer (J) and 1 to 20 parts by weight of a thermoplastic thermoplastic resin (K) Elastomer compositions (X 2 ) are preferred.
- the olefin thermoplastic elastomer (X) used in the present invention may be, if necessary, a known softener, a heat stabilizer, an anti-aging agent, a weather stabilizer, a filler, a coloring agent, in addition to the above-mentioned olefin polymer. Agents, lubricants, etc., provided that the total compression set and melt flow rate satisfy the above conditions.
- the base material layer of the olefin-based foam laminate of the present invention is a foam (XF) obtained by foaming the above-mentioned olefin-based thermoplastic elastomer (X) with a foaming agent ( ⁇ ), and will be specifically described later.
- the skin layer of the olefin-based foam laminate of the present invention an ultrahigh molecular weight polyolefin resin (Y) having an intrinsic viscosity [7?] Of 3.5 to 8.3 dI Zg measured in 135 ° C decalin, Or, it is an olefin-based thermoplastic elastomer composition (Z) containing an olefin-based thermoplastic elastomer (C) and a lubricant (ZL), which will be described in detail later.
- lubricant (Z L) used as a raw material of the skin layer in the present invention a known lubricant compounded in a plastic that is generally widely recognized can be used.
- a known lubricant compounded in a plastic that is generally widely recognized can be used.
- those described in “Chemical Handbook Application”, 2nd revised edition (edited by The Chemical Society of Japan, 1973, published by Maruzen Co., Ltd.), 1037 to 1038 can be used.
- organopolysiloxanes (D), fluorine-based polymers (E), antistatic agents (F), polyolefin resins (G), and fatty acid amides are preferred.
- an organopolysiloxane (D), a fluorine-containing polymer (II) and a fatty acid amide together with a polyolefin resin (G).
- some of the lubricant (ZL) components are used as softeners.
- the softener to be added to the olefin thermoplastic elastomer (c) and the lubricant for example, components such as mineral oil to be added as ⁇
- the ethylene-based thermoplastic elastomer (A) preferably used as a base material of the base material layer in the present invention is a polyethylene resin (a-1) of 5 to 60 parts by weight, preferably 10 to 50 parts by weight, and ethylene- ⁇ - Olefin copolymer (a_2) 40 to 95 parts by weight, preferably 50 to 90 parts by weight [where the total amount of the components (a-1) and (a-2) is 100 parts by weight It is. ] Is comprised.
- the ethylene-based thermoplastic elastomer (A) may contain, if necessary, a polypropylene resin (a-3) in addition to the components (a-1) and (a-2).
- the ethylene-based thermoplastic elastomer (A) used in the present invention is a polyethylene resin A mixture containing (a-1) and an ethylene / c-olefin copolymer (a-2) in the above-described ratio, or a mixture containing a polypropylene resin (a-3) if necessary, as described below.
- the ethylene-based thermoplastic elastomer (A) has a compression set (70 DC , 22 hours) of 60% or less, preferably 15 to 55%, and a JISK 7120 measured by JISK6262.
- the measured melt flow rate (230 ° C, 10 kg load) is 0.1 Ig / I min or more, preferably:! ⁇ 300 gZl 0 min, more preferably! It is preferably 100 g / l 0 min.
- the content of the polyethylene resin (a_l) and the content of the ethylene ' ⁇ -olefin copolymer (a-2) are within the above range, excellent rubber elasticity is exhibited.
- polyethylene resin (a_l) used in the present invention known polyethylene resins such as high-density polyethylene, medium-density polyethylene, linear low-density polyethylene, and low-density polyethylene can be used without limitation. Low-density polyethylene is preferred, and linear low-density polyethylene polymerized using a meta-mouth catalyst is particularly preferred.
- Polyethylene resin (a _ l) is agate Leto flow rate (MFR; ASTM D- 1 2 3 8, 1 90 ° C, 2. 1 6 kg load) 0. 01 ⁇ : L 00 g / 1 0 min, preferred It is preferably 0.01 to 50 g / 10 minutes. It should be noted that ultrahigh molecular weight polyethylene having an MFR of less than 0.10 min has an intrinsic viscosity [] measured in decalin (decahydronaphthalene) at 135 ° C of usually 7 to 40 d1 Zg.
- ultra-high molecular weight polyethylene When using ultra-high molecular weight polyethylene as the polyethylene resin (a-1), low-molecular weight or high molecular weight polyethylene having an intrinsic viscosity [] measured in decalin at 135 ° C of 0.1 to 5 dlZg can be used.
- An ultrahigh molecular weight polyethylene resin composition containing 5 to 40% by weight and an ultrahigh molecular weight polyethylene having an intrinsic viscosity [ ⁇ ;] of 7 to 40 d1 Zg 85 to 60% by weight is used in the form of an ultrahigh molecular weight polyethylene resin composition.
- this ultra-high molecular weight polyester The intrinsic viscosity [77] of the whole ren resin composition is preferably 3.5 to 8.3 dl / g.
- the polyethylene resin ( a -1) preferably has a density of 0.880 to 0.980 gZ cm 3 , preferably 0.900 to 0.950 g / cm 3 .
- the MFR (ASTM D-1238, 190 ° C, 2.16 kg load) should be between 0.1 and 30 gZ. l 0 min, preferably 0.. 2 to 20 gZ l 0 min, density 0. 8 8 0 ⁇ 0. 9 50 g cm 3, linear preferably 0. 9 1 0 ⁇ 0. 940 g / cm 3 It is desirable to use linear low density polyethylene.
- a substrate layer that is less likely to be rough and has less stickiness on the surface is used as compared with a case where a high-density polyethylene or a medium-density polyethylene is used. Obtainable.
- the polyethylene resin (a-1) may be a homopolymer of ethylene, or may be a copolymer of ethylene and a small amount, for example, 10 mol% or less, of another monomer.
- Other monomers include ⁇ -olefins having 3 to 20 carbon atoms, preferably 3 to 8 carbon atoms; vinyl monomers such as vinyl acetate and ethyl acrylate. Examples of ⁇ -olefins used as other monomers include propylene, 1-butene, 4-methyl-11-pentene, 1-hexene-1-octene and the like. Other monomers can be used alone or in combination of two or more.
- the polyethylene resin (a-1) can be used alone or in combination of two or more.
- the ethylene ' ⁇ -olefin copolymer (a-2) used in the present invention has a Mooney viscosity ML 1 + 4 (100 ° C) of 90 to 250, preferably 100 to 200, and more preferably 1 to 200. 1 0-1 8 0, ethylene content of 70 to 9 5 mole 0/0, preferably from 7 5-9 0 Monore 0/0, more preferably of 7 5-8 5 Monore% ethylene. alpha-Orefin It is a system copolymer.
- the ethylene content refers to the ethylene content relative to all ⁇ -olefins (including ethylene).
- the ethylene / ⁇ -olefin copolymer (a-2) may be a copolymer composed of ethylene and ⁇ -olefin having 3 to 20 carbon atoms, preferably 3 to 8 carbon atoms. Monomers other than olefins may be copolymerized. Examples of the monomer other than ⁇ -olefin include non-conjugated polyene and the like. Further, the ethylene / ⁇ -olefin copolymer (a_2) may be a random copolymer or a block copolymer.
- ethylene / olefin copolymer (a-2) examples include an ethylene / ⁇ -olefin copolymer, an ethylene / ⁇ -olefin ′ non-conjugated polyene copolymer, and the like. Among them, an ethylene / ⁇ -olefin / non-conjugated polyene copolymer is preferred. '
- ⁇ -olefins copolymerized with ethylene include, for example, propylene, 1-butene, 1-pentene, 4-methyl-1-pentene, and 1- Xen and 1-otaten.
- One olefin can be used alone, or two or more types can be used in combination.
- Non-conjugated polyenes copolymerized with ethylene and ⁇ -olefin in ethylene 'olefin copolymer (a-2) include, for example, dicyclopentene, 1,4-hexadiene, cyclooctadiene, and the like.
- Non-conjugated gens such as methylene nonolevonorene and ethylidene norbornene.
- the non-conjugated polyene can be used alone or in combination of two or more.
- Non-conjugated polystyrene copolymer is usually 0.1 to 50, preferably 5 to 30.
- the ethylene / ⁇ -olefin copolymer (a-2) can be used alone or in combination of two or more.
- the polypropylene resin (a-3) a known polypropylene resin can be used without limitation. Specific examples include the following polypropylene resins.
- ⁇ -olefin copolymerized with propylene examples include those having 2 to 20 carbon atoms such as ethylene, 1-butene, 4-methyl_1-pentene, 11-hexene, and 1-octene. And preferably 2 to 8 ⁇ -olefins.
- the propylene homopolymer of the above 1) and the propylene / ⁇ -olefin random copolymer of the above 2) are preferable, and in particular, MFR (AS TM D_1 238, 2 (30 ° C, 2.16 kg load) is preferably 0.1 to 50 g Zl 0 min.
- the polypropylene resin (a-3) can be used alone or in combination of two or more.
- the content of the polypropylene resin (a-3) in the ethylene thermoplastic elastomer (A) used in the present invention depends on the content of the polyethylene resin (a-1) and the ethylene ' ⁇ -olefin copolymer (a_2). ), Usually 30 parts by weight or less, preferably 2 to 30 parts by weight, more preferably 5 to 20 parts by weight, based on 100 parts by weight of the total.
- the ethylene-based thermoplastic elastomer (A) used in the present invention has excellent rubber elasticity without being cross-linked (vulcanized) using a cross-linking agent or a cross-linking aid.
- Ethylene-based thermoplastic elastomer (A) is not a thermosetting elastic material such as conventional vulcanized rubber, but a thermoplastic elastomer, so it is easy to recycle.
- a cross-linking agent or the like is not required, and thus a kneading step of the cross-linking agent or the like is not required.
- a mineral oil-based softening agent is preferably used as the softening agent to be blended in the ethylene-based thermoplastic elastomer (A).
- the softening agent may be previously contained as an extender oil in the ethylene / ⁇ -olefin-based copolymer (a-2).
- a mineral oil-based softener a paraffin-based, naphthene-based, aromatic-based softener and the like usually used for rubber are suitable.
- the ethylene-based thermoplastic elastomer (A) used in the present invention is preferably the above-mentioned polyethylene resin (a-1), ethylene ' ⁇ -olefin polymer (a-2), in the absence of a crosslinking agent. It can be produced by mixing the resins and additives to be blended as required at the above-mentioned specific ratio and dynamically performing a heat treatment.
- dynamically heat-treating means that the polyethylene resin (a-1), the ethylene- ⁇ -olefin copolymer (a-2), and the resin and additives to be blended if necessary are melted ( Kneading in a molten state.
- This dynamic heat treatment can be performed using a kneading device such as a mixing grole, an intensive mixer (for example, Banbury mixer, kneader), a single screw extruder, and a twin screw extruder. It is preferred to do so.
- the dynamic heat treatment is preferably performed in a closed kneading apparatus. It is also preferable to carry out the reaction in an inert gas such as nitrogen.
- the kneading temperature is usually 150 to 280 ° C., preferably It is desirable that the kneading time is usually from 170 to 240 ° C, usually from 1 to 20 minutes, preferably from 1 to 5 minutes.
- Shear force applied during kneading is usually 1 0 to 1 0 4 sec at a shear rate - preferably 1 0 2 to 1 0 4 It is desirable to sec 1.
- the heat treatment is preferably performed under conditions satisfying the following formula (1), preferably (1 ′), and more preferably (1 ′′).
- T is the resin temperature (° C) at the die outlet of the twin-screw extruder
- P is the screw diameter (mm) of the twin-screw extruder
- Q is the maximum shear rate Keru received in a twin-screw extruder.
- Ethylene-based thermoplastic elastomer (A) obtained by dynamically heat-treating using a twin-screw extruder in the absence of a crosslinking agent under the condition satisfying the above formula (1.) has a tensile strength, a permanent elongation, Excellent compression set appearance.
- a crosslinking agent such as an organic peroxide, a vulcanization aid such as a dibutyl compound, and the like used in the conventional vulcanized rubber production are used.
- foaming agent (B) examples include organic or inorganic pyrolytic foaming agents; water; solvents such as hydrocarbons and halogenated hydrocarbons; and gases such as nitrogen, carbon dioxide, propane and butane.
- organic or inorganic pyrolytic foaming agent examples include organic or inorganic pyrolytic foaming agents; water; solvents such as hydrocarbons and halogenated hydrocarbons; and gases such as nitrogen, carbon dioxide, propane and butane.
- an organic or inorganic pyrolytic foaming agent, water, carbon dioxide and the like are preferable.
- the inorganic pyrolytic foaming agent include sodium hydrogen carbonate, sodium carbonate, ammonium hydrogen carbonate, ammonium carbonate, and ammonium nitrite.
- the organic thermal decomposition type foaming agent specifically, N, N 5 one dimethyl N, N '- dinitrosoterephthalamide Ami de, N, N' - dinitrosopentamethylene tetramine Mi emissions (D PT) such as Nitroso compounds; azodicarbonamide (ADCA), azobisisobutyronitrile (AZBN), azobiscyclohexyl nitrile, azodiaminobenzene, valazomazodicarboxylate, and other azo compounds; benzenesulfonyl hydrazide (B SH), toluenesulfonyl hydrazide (T SH), p, p'-oxobis (benzenesulfonyl hydrazide) (OB SH), diphenyl sulfone-1,3,3'-sulfol-hydrazide compound such as disulfonyl hydrazide; calcium azide, Azide compounds such as 4,
- the blowing agent (B) can be used alone or in combination of two or more.
- the blowing agent (B) is added to 100 parts by weight of the ethylene thermoplastic elastomer (A), Usually, it is desirable to use 0.5 to 20 parts by weight, preferably 1 to 10 parts by weight.
- the foaming ethylene-based thermoplastic elastomer composition (X i) may contain a foaming aid, if necessary.
- the foaming aid include compounds containing metals such as zinc, calcium, lead, iron, and barium; organic acids such as citric acid, salicylic acid, phthalic acid, stearic acid, and oxalic acid; and urea or derivatives thereof. It is desirable that the foaming aid is used in an amount of usually 0.1 to 20 parts by weight, preferably 1 to 10 parts by weight, based on 100 parts by weight of the ethylene-based thermoplastic elastomer (A).
- the foaming aid has functions such as lowering the decomposition temperature of the foaming agent, accelerating the decomposition, and homogenizing the bubbles.
- the foamable ethylene-based thermoplastic elastomer composition (Xi) may further contain a filler, a heat stabilizer, an anti-aging agent, a weather stabilizer, an antistatic agent, a wetting agent, a metal soap, a wax, if necessary.
- Known additives such as lubricants, pigments, dyes, flame retardants, anti-blocking agents and the like can be blended within a range that does not impair the object of the present invention.
- a filler usually used for rubber is suitable as the filler usually used for rubber is suitable.
- these fillers are used in an amount of usually 40 parts by weight or less, preferably:! To 30 parts by weight, based on 100 parts by weight of the ethylene-based thermoplastic elastomer (A). 'Preparation of foamable ethylene-based thermoplastic elastomer composition (Xi)
- Foamable ethylene-based thermoplastic elastomer composition (X ⁇ is a blend of ethylene-based thermoplastic elastomer (A) and foaming agent (B), and, if necessary, foaming aids, wetting agents, etc. It can be prepared by blending a substance.
- the pellets of the ethylene-based thermoplastic elastomer (A) and the foaming agent (B) are temporarily mixed with a tumbler type Brabender. , V-type lavender, ribbon blender, Henschel mixer, etc., then, if necessary, open-type mixing port. ⁇ Non-open-type Banbury mixer, extruder, kneader, continuous mixer, etc. I can give you a way.
- the weather stabilizer, the heat stabilizer, the antioxidant, the pigment, the dye, and the like may be blended in any of the above steps.
- the raw material of the skin layer at least one selected from the following olefin-based raw materials 1) to 5) can be preferably used.
- Olefin-based thermoplastic elastomer composition (Z 2) containing 5-200 parts by weight of a polyolefin resin (G) based on 100 parts by weight of the olefin-based thermoplastic elastomer (C)
- the ultrahigh molecular weight polyolefin resin (Y) used as a raw material of the skin layer in the present invention is 135.
- C Intrinsic viscosity measured in Zakirin [77] Force S 3.5 to 8.3 dIg, preferably 3.8 to 8.0 d1 Zg in ultra-high molecular weight polyolefin resin is there.
- the ultrahigh molecular weight polyolefin resin (Y) may be a single resin or a composition containing two or more resins. In the case of a resin composition, a resin composition having an intrinsic viscosity [77] as a whole within the above range can be used.
- ultra-high molecular weight polyolefin resin (Y) is a resin composition
- An ultrahigh molecular weight polyolefin resin composition containing d 1 / g polyolefin resin (y_2) is preferable, and more preferably 15 to 40 parts by weight of ultrahigh molecular weight polyolefin resin (y-1), and polyolefin resin (y-2) ) 60 to 85 parts by weight, particularly preferably 18 to 35 parts by weight of ultra-high molecular weight polyolefin resin (y-1), 65 to 82 parts by weight of polyolefin resin (y-2) (where the total of both is 100 parts by weight) Is an ultra-high molecular weight polyolefin resin composition.
- ultrahigh molecular weight polyolefin resin (y-1) and polyolefin resin (y-2) include, for example, ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 1-decene, 1- Examples include a-olefin homopolymers and copolymers such as dodecene, 4-methyl-1-pentene and 3-methyl-11-pentene.
- ultra-high molecular weight polyolefin resin (y-1) and polyolefin resin (y_2) include ethylene homopolymers and ethylene-based copolymers composed of ethylene and other a-olefins. preferable.
- the ultra high molecular weight polyolefin resin (Y) may contain a liquid or solid softener (lubricating oil).
- a mineral oil-based softener As the liquid softener to be mixed with the ultra-high molecular weight polyolefin resin (Y), a mineral oil-based softener, a synthetic softener, and the like are used.
- mineral oil-based softeners include petroleum-based lubricating oils such as paraffinic and naphthenic liquids, liquid paraffin, spindle oil, refrigerating machine oil, dynamo oil, turbine oil, machine oil, cylinder oil, and the like.
- Specific examples of the synthetic softener include synthetic hydrocarbon oil, polydalicol oil, polyphenylene ether oil, estenole oil, ester phosphate oil, polychlorotrifluorene ethylene oil, fluoroester oil, chlorinated biphenyl oil, and silicone. Oil etc. are given.
- the solid softener specifically, graphite and molybdenum disulfide are mainly used. However, other materials such as boron nitride, tungsten disulfide, lead oxide, glass powder, and metallic soap can also be used.
- the softener can be used alone or in combination of two or more. Further, a liquid softener and a solid softener can be used in combination. For example, they can be compounded in the form of a powder, a sol, a gel, or a suspensoid.
- the content of the softening agent is desirably 1 to 20 parts by weight, preferably 3 to 15 parts by weight, based on 100 parts by weight of the ultrahigh molecular weight polyolefin resin (Y).
- the ultrahigh molecular weight polyolefin resin (Y) may further contain additives such as a heat stabilizer, an antistatic agent, a weather stabilizer, an antioxidant, a filler, a colorant, and a lubricant, if necessary. Can be blended in a range that does not impair.
- thermoplastic thermoplastic elastomer composition is used as a skin layer.
- thermoplastic elastomer first composition (Z i) ⁇ (Z 3 )
- thermoplastic thermoplastic elastomer (C) used as a raw material of the skin layer in the present invention a thermoplastic thermoplastic elastomer composed of a crystalline polyolefin resin (c_l) and a rubber (c-12) can be used. .
- Examples of the crystalline polyolefin resin (c-11) include homopolymers and copolymers of ⁇ -olefins having 2 to 20 carbon atoms.
- Specific examples of the crystalline polyolefin resin (c-1) include the following.
- Ethylene homopolymer manufactured by either low pressure method or high pressure method
- ⁇ -olefin examples include ethylene, propylene, 1-pentene, 4-methyl-1-pentene, 1-hexene, and 1-octene.
- a propylene homopolymer or a copolymer of propylene containing propylene as a main component with another olefin is preferable.
- LOO g is 10 minutes, preferably 0.1 to 50 g 10 minutes.
- the rubber (c-2) used in the present invention is not particularly limited, but an olefin copolymer rubber is preferred.
- the olefin copolymer rubber used as the rubber (c-1) is an amorphous random copolymer having ⁇ -olefin having 2 to 20 carbon atoms as a main component, Examples include an amorphous a-olefin copolymer comprising two or more ⁇ -olefins, and an a-olefin / non-conjugated polyene copolymer comprising two or more types of a-olefin and a non-conjugated diene.
- olefin copolymer rubber used as the rubber (c_2) include the following rubbers.
- c-olefin examples include the same a-olefins as the specific examples of the a-olefin that constitutes the crystalline polyolefin (c-1) described above.
- non-conjugated polyene examples include non-conjugated dienes such as dicyclopentadiene, 1,4-hexadiene, cyclooctadiene, methylene nonolevonorenene, and ethylidene nonolenone.
- the above rubber (c_2) can be used alone or in combination of two or more.
- the rubber (c-12) include ethylene 'propylene copolymer rubber, ethylene.
- Propylene' non-conjugated polyene copolymer rubber ethylene 1-butene copolymer rubber, and ethylene 1-butene 'non-polymer.
- Conjugated polypropylene copolymer rubbers are preferred, especially ethylene 'propylene' non-conjugated copolymer rubbers, especially ethylene 'propylene.ethylidene norbornene copolymer rubber or ethylene' propylene '
- Particularly preferred is a disc-opened pentadiene copolymer rubber.
- the Mooney viscosity ML 1 +4 (100 ° C.) of these copolymer rubbers is desirably 10 to 250, preferably 40 to 150. Further, the iodine value when the non-conjugated polyene is copolymerized is preferably '25 or less.
- rubber (c-12) used in the present invention in addition to the above-mentioned olefin copolymer rubber, other rubbers such as styrene / butadiene rubber (SBR), nitrile rubber (NBR), and natural rubber (NR) And rubbers such as butyl rubber (IIR), SEBS, and polyisobutylene. .
- SBR styrene / butadiene rubber
- NBR nitrile rubber
- NR natural rubber
- rubbers such as butyl rubber (IIR), SEBS, and polyisobutylene.
- the weight ratio (crystalline polyolefin resin / rubber) of the crystalline polyolefin resin (c_l) to the rubber (c-2) is usually 9 It is desirably in the range of 0 10 to 5Z95, preferably 70/30 to 10/90.
- the other rubber is the total amount of the crystalline polyolefin resin (c-11) and the rubber (c-2). It is desirable to add the composition in an amount of 40 parts by weight or less, preferably 5 to 20 parts by weight, per 100 parts by weight.
- additives such as a softener, a heat stabilizer, a weather stabilizer, an antioxidant, a filler, and a coloring agent may be added to the olefin-based thermoplastic elastomer (C) to impair the purpose of the present invention. It can be blended in a range that does not exist.
- softener a softener usually used for rubber can be used, but a mineral oil-based softener and a synthetic softener are preferred.
- Mineral oil-based softening agents to be blended with the olefin-based thermoplastic elastomer (C) include petroleum-based lubricating oils such as paraffinic, naphthenic, and aromatic liquids, and liquid paraffin. Examples include polypropylene wax, petroleum asphalt, and petrolatum.
- Other softeners include coal tar, coal tar pitch, etc.
- Coal tars fatty oils such as castor oil, linseed oil, rapeseed oil, soybean oil, and coconut oil; waxes such as tall oil, beeswax, carnauba wax, and lanolin; ricinoleic acid, palmitic acid, stearic acid, 1 2.
- Fatty acids such as stearic acid, montanic acid, oleic acid, and erlic acid or metal salts thereof; synthetic polymers such as petroleum resin, coumarone indene resin, and atactic polypropylene; dioctyl phthalate, dioctyla Ester plasticizers such as dipate and octyl sebacate; and other examples include microcrystalline wax, liquid polybutadiene or a modified or hydrogenated product thereof, and liquid chocolate.
- These softeners are used in an amount of 5 to 200 parts by weight, preferably 15 to 150 parts by weight, more preferably 20 to 80 parts by weight, based on 100 parts by weight of the olefin thermoplastic elastomer (C). It is desirable to use them in parts by weight.
- These softeners may be added when producing the olefin thermoplastic elastomer (C), or may be added to the rubber (c-12) in advance as an extender oil.
- thermoplastic thermoplastic elastomer (C) used in the present invention comprises a mixture of the crystalline polyolefm resin (c-1), the rubber (c_2), and, if necessary, a softener. Obtained by heat treatment.
- the rubber (c-12) can exist in the crosslinked state such as uncrosslinked, partially crosslinked, or completely crosslinked in the thermoplastic thermoplastic elastomer (C).
- a mixture of a crystalline polyolefin resin (c-1) and a rubber (c-2) and, if necessary, a softener and the like are used. Is preferably thermally treated in the presence of a crosslinking agent.
- Crosslinking agents that can be used for dynamic heat treatment include organic peroxides, sulfur, phenolic resins, amino resins, quinone derivatives, amine compounds, Crosslinking agents generally used in thermosetting rubbers, such as azo compounds, epoxy compounds, isocyanates, and the like. Of these, organic peroxides are particularly preferred.
- organic peroxide examples include dicumylperoxide, di-tert-pentinolenoleoxide, 2,5-dimethinolee 2,5-di- (tert-pentinolenoleoxy) hexane, 2,5 —Dimethinolee 2,5-di (tert-butylinoleoxy) hexine_3,1,3-bis (tert-butinoleperoxyisopropinole) benzene, 1,1-bis (tert-butylinolenooxy) 3,3,5-trimethinolecyclohexane, n-butynole-1,4-bis (tert-butylinolexylene) norrelate, benzoinolenoleoxide, p-clozenbenzoinolenoleoxide, 2 , 4-Dichrolic benzoinolenolexoxide, tert-butylinolenoleoxy benzoate
- 2,5-dimethyl-2,5-DG tert-butinoleperoxy
- 2,5-dimethinolelate 2,5-di- (tert-) 1,3-bis (tert-butylperoxyisopropyl) benzene
- 1,3-bis (tert-butylbenzyloxyisopropyl) benzene is most preferred.
- the organic peroxide is used in an amount of 0.05 to 3 parts by weight, preferably 0 to 3 parts by weight, based on 100 parts by weight of the total of the crystalline polyolefin resin (c-1) and the rubber (c-1). Used in proportions of 1 to 1 part by weight.
- Divinyl benzene is easy to handle, has good compatibility with the crystalline polyolefin resin (c-11) and rubber (c-12), which are the main components of the above-mentioned crosslinked material, and has good organic peroxide content. Since it has a solubilizing effect and acts as a dispersant for organic peroxides, an olefinic thermoplastic elastomer (C) with a uniform cross-linking effect by heat treatment and a good balance between fluidity and physical properties can be obtained. .
- the above-mentioned cross-linking aid or polyfunctional vinyl monomer is used in a ratio of 0.1 to 3% by weight, preferably 0.3 to 2% by weight, based on the whole of the above-mentioned cross-linked material.
- the mixing ratio of the crosslinking aid or the polyfunctional vinyl monomer is within the above range, the obtained thermoplastic elastomer does not have the crosslinking aid and the polyfunctional vinyl monomer remaining as unreacted monomers in the elastomer. Therefore, there is no change in physical properties due to heat history during processing and molding, and the fluidity is excellent.
- the term "dynamically heat-treating" refers to kneading the above components in a molten (melted) state.
- a known kneading apparatus for example, an open-type mixing roll, a non-open-type Banbury mixer, an extruder, a kneader, a continuous mixer, or the like is used.
- a non-open type kneading device is preferable, and kneading is preferably performed in an atmosphere of an inert gas such as nitrogen gas or carbon dioxide gas.
- the kneading temperature during the dynamic heat treatment is usually 150 to 280 ° C, preferably 170 ° C. 240240 ° C., and the kneading time is 1-20 minutes, preferably 3-10 minutes.
- Shear force applied is, 1 00 sec one 1 or more as shear rate, is favored properly 500 to: LO, 000 sec-1 to desirably.
- the olefin thermoplastic elastomer (C) preferably used in the present invention has a gel content calculated by the following of 10% by weight or more, preferably 20% by weight or more, particularly preferably 45% by weight or more. It is desirable.
- thermoplastic elastomer was weighed out to about 10 Omg, cut into 0.5 mm X 0.5 mm X 0.5 mm strips, and the obtained strips were placed in a closed container for 30 minutes. Immerse in m1 cyclohexane at 23 ° C for 48 hours. Next, the sample is taken out on a filter paper and dried at room temperature for at least 72 hours until a constant weight is obtained.
- the value obtained by subtracting the weight of the hexane-insoluble components (fibrous filler, filler, pigment, etc.) other than the polymer component from the weight of the dried residue is defined as the “final weight captured (Y)”.
- the weight of the cyclohexane-soluble component other than the polymer component for example, softener
- the weight of the cyclohexane-insoluble component other than the polymer component fibrous filler, filler, pigment, etc.
- the value obtained by subtracting the weight is referred to as “the initial weight (X) J captured”.
- the olefin-based thermoplastic elastomer (C) used in the skin layer of the present invention includes the ethylene-based thermoplastic elastomer.
- One (A) can also be used.
- the olefin thermoplastic elastomer (C) constituting the skin layer of the olefin foam laminate of the present invention is composed of a crystalline polyolefin resin (c-11) and a rubber (c_2), and has excellent fluidity. I have.
- the above-mentioned polyolefin-based thermoplastic elastomer (C) can be molded using a conventionally used molding apparatus such as compression molding, transfer molding, injection molding, and extrusion molding.
- organopolysiloxane (D) used as the lubricant (Z) a known organopolysiloxane having one Si— ⁇ bond in the main chain can be used without limitation. By blending the organopolysiloxane (D), A skin layer with excellent mobility and abrasion resistance can be obtained.
- organopolysiloxane (D) examples include dimethylpolysiloxane, methinolepheninolepolysiloxane, phenolic polysiloxane, tetramethinoletetraphenylpolysiloxane, methylhydrogenpolysiloxane, and epoxy resin. Modified polysiloxanes such as modified, alkyl-modified, amino-modified, carboxyl-modified, alcohol-modified, fluorine-modified, alkyl-aralkyl-polyether-modified, epoxy-polyether-modified, and the like. Of these, dimethylpolysiloxane is preferred.
- the organopolysiloxane (D) can be used alone or in a combination of two or more.
- Organopolysiloxane (D) is preferably one of the viscosity [JISK 2283, 25 ° C] is 10 ⁇ 10 7 c S t.
- those having a viscosity (JISK 2283, 25 ° C) of 10 6 cSt3 ⁇ 4 are very high in viscosity, so that the dispersibility in the olefin thermoplastic elastomer (C) is improved.
- it may be a masterbatch with an olefin resin.
- the olefin resin used in this case is, for example, the crystalline polyolefin resin (c-11) used for producing the olefin thermoplastic elastomer (C), specifically, an ethylene homopolymer or a polymer. And copolymers of thiene and other ⁇ -olefins, propylene homopolymers, and copolymers of propylene and other ⁇ -olefins.
- Organopolysiloxane (D) should be used alone according to its viscosity. Can be used, or two or more can be used in combination. When used in particular together sets of two or more, a high viscosity of the viscosity 1 0 ⁇ 1 0 6 c S t of the low viscosity organopolysiloxane San and (D) 1 0 6 ⁇ 1 0 7 c S t Oruganopori It is preferred to use a combination of siloxanes.
- Olefin-based thermoplastic elastomer composition (In Z, the content of the organopolysiloxane (D) is preferably 0.5 to 20 parts by weight, based on 100 parts by weight of the olefin-based thermoplastic elastomer (C).)
- the content of the organopolysiloxane (D) is within the above range, the foamed laminate has excellent sliding properties, and the surface becomes sticky due to the organopolysiloxane (D). Also, there is no problem.
- the fluoropolymer (E) used as the lubricant (Z L ) a known fluoropolymer containing a fluorine atom can be used without limitation. By incorporating the fluoropolymer (E), a skin layer having excellent slidability and abrasion resistance can be obtained.
- fluorine-based polymer (E) used in the present invention examples include polytetrafluoroethylene, tetrafuzoleoethylene ethylene'hexafluoropropylene copolymer, tetrafunoreoethylene perfluoronoreole vinyl alcohol copolymer, and tetrafluoroethylene ethylene 'Ethylene copolymers, vinylidene fluoride polymers, vinyl fluoride polymers and the like.
- the fluoropolymers (E) can be used alone or in combination of two or more.
- Olefin-based thermoplastic elastomer composition in Z, the content of the fluorine-based polymer ( ⁇ ) is 0.5 to 10 parts by weight, preferably 1 to 100 parts by weight of the olefin-based thermoplastic elastomer (C).
- the content of the fluorine-containing polymer ( ⁇ ) is within the above range, the foamed laminate has excellent slidability • Antistatic agent (F)
- Antistatic agent (F) used as a lubricant can be any known antistatic agent generally used for resins, and can be used without limitation.
- Anionic activator, cationic activator, nonionic activator, amphoteric activator A skin layer with excellent slidability and abrasion resistance can be obtained by blending the antistatic agent (F).
- the antistatic agent (F) examples include lauryldiethanolamine, ⁇ , ⁇ -bis (2-hydroxyethyl ⁇ ) stearylamine, stearyl monoglyceride, distearyl glyceride, and triarylamine. Examples include stearyl dalyceride, polyoxyethylene laurinoleamine caprinoleeste ⁇ ⁇ , and stearyl diethanolanolamine monostearate.
- the antistatic agent (F) can be used alone or in combination of two or more.
- the antistatic agent (F) In order to enhance the dispersibility of the antistatic agent (F) with the thermoplastic thermoplastic elastomer (C), or to further enhance the effect of improving the sliding abrasion resistance, the antistatic agent (F) must be prepared in advance with a olefin resin and / or a known resin. May be a masterbatch with the inorganic filler. Examples of the olefin-based resin and the inorganic filler used herein include the same as described above.
- Olefin-based thermoplastic elastomer composition In the case of ⁇ , the content of the antistatic agent (F) is 0.5 to 10 parts by weight, preferably 1 to 10 parts by weight based on 100 parts by weight of the olefin-based thermoplastic elastomer (C).
- the content of the antistatic agent (F) is within the above range, the foamed laminate has excellent slidability, and the antistatic agent (F) precipitates on the surface and whitens. (Pre-lead out) Les ,.
- thermoplastic thermoplastic elastomer composition (Zi) the organopolysiloxane (D), the fluoropolymer (E) and the antistatic agent (F) can be used alone or in combination of two or more. They can be used in combination, and the combination is arbitrary.
- the crystalline polyolefin resin (c-1) used in the above-mentioned thermoplastic thermoplastic elastomer (C) is preferable.
- the polyolefin resin (G) used in the present invention may be the ultrahigh molecular weight polyolefin resin (Y).
- fatty acid amide used as the lubricant (ZL) include monoamides of higher fatty acids such as steer amide, oxcystea amide, oleyl amide, elsyl amide, lauryl amide, palmityl amide and behen amide.
- Amide type of higher fatty acids such as methylonoreamide, methylenebisstearide amide, ethylenebisstearide amide, ethylenebisoleylamide and ethylenebislauryl amide; stearyl oleyl amide, N-stearyl Complex amides such as elk amide and N-oleyl palmitamide; and special fatty acid amides marketed under the trade name of Plastrogin and Plast mouth gin S (Fujisawa Pharmaceutical Co., Ltd.). These may be used alone or as a mixture of two or more.
- the amount of the c- fatty acid amide is 100 parts by weight of a olefin-based thermoplastic elastomer (C). The amount is preferably 0.01 to 5 parts by weight, and more preferably 0.05 to 3 parts by weight. Within this range, excellent slidability, abrasion, and moldability are obtained.
- the esters used as the lubricant (Z L ) are esters of an aliphatic alcohol with dicarboxylic acid or a fatty acid. Specific examples of such esters include esters of cetyl alcohol and acetic acid, esters of cetyl alcohol and propionic acid, esters of cetyl alcohol and butyric acid, esters of tallow alcohol and acetic acid, and esters of tallow alcohol and propionic acid.
- esters of distearyl alcohol and phthalic acid, glycerin monoolate, glycerin monostearate, stearic acid esters, and glyceryl montanate are particularly preferred, and esters of distearyl alcohol and phthalic acid, glycerin Monostearate and glyceryl montanate are preferred.
- the amount of the ester is preferably 0.0 :! to 5 parts by weight, and more preferably 0.05 to 3 parts by weight, based on 100 parts by weight of the thermoplastic thermoplastic elastomer (C). Within this range, excellent slidability, abrasion, and moldability are obtained.
- the silicate used as the lubricant (Z L ) is represented by the formula
- M represents the number of moles of S i 02 or H 2 0 per mole of the alkali metal atoms, m and n each M 2 0.
- the amount of the silicate is preferably 0.01 to 5 parts by weight, more preferably 0.05 to 3 parts by weight, per 100 parts by weight of the thermoplastic thermoplastic elastomer (C). Within this range, excellent slidability, abrasion, and moldability are obtained.
- the olefinic thermoplastic elastomer composition (Z) and the olefinic thermoplastic elastomer composition ( ⁇ -(z 3 )) may be optionally used with mineral oil softeners, heat stabilizers, and weather stabilizers. Additives such as an anti-aging agent, a filler, and a coloring agent can be blended within a range that does not impair the object of the present invention.
- Orefin thermoplastic elastomer first composition (Z) and Orefin thermoplastic elastomer first composition (Z i) ⁇ (Z 3 ) can be produced by a known method, Orefin thermoplastic elastomer one if example embodiment (C ), At least one selected from the group consisting of an organopolysiloxane (D), a fluoropolymer (E) and an antistatic agent (F), and a polyolefin resin (G) and other additives added as necessary. It can be obtained by kneading additives.
- the base material layer instead of the foam (XF), 100 parts by weight of an olefin-based thermoplastic elastomer (J),
- thermoplastic thermoplastic elastomer composition (X 2 ) containing (K) 1 to 20 parts by weight.
- the olefin thermoplastic elastomer (J) used as a raw material of the base material layer in the present invention is a polyolefin resin (j-1) in an amount of 5 to 60 parts by weight, preferably 10 to 50 parts by weight, and ethylene ⁇ - Copolymer copolymer rubber (j—2) 40 to 95 parts by weight, preferably 50 to 90 parts by weight [where the total amount of the component (j-11) and the component (j-12) is 100 Parts by weight. ]
- (J) may contain, if necessary, other components such as a softener (j-1 3) in addition to the component (j-1) and the component (j-1 2).
- a softener (j-1 3) in addition to the component (j-1) and the component (j-1 2).
- the olefin thermoplastic elastomer (J) used in the present invention is a mixture containing a polyolefin resin (j_1) and an ethylene / ⁇ -olefin copolymer rubber (j-12) in the above-mentioned ratio, or if necessary. It is preferable that the mixture is a olefinic thermoplastic elastomer obtained by dynamically heat-treating a mixture containing a softening agent U-3) in the presence of a crosslinking agent, as described later.
- the olefin thermoplastic elastomer (J) has a compression set (70 ° C, 22 hours) of 60% or less, preferably 15 to 55%, preferably 15 to 55%, as measured by JISK 6262.
- the melt flow rate (230 ° C, 10 kg load) measured in step (1) should be O.lg / l Omin or more, preferably I to 300 g / I 0 min.
- an oil-based thermoplastic elastomer composition (X 2 ) having good fluidity can be obtained.
- suitable raw materials for the polyolefin resin (j_l) include ethylene, propylene, 1-butene, 11-pentene, 1-hexene, 1-octene, 1-decene, and 2-methyl-1- ⁇ -olefins having 2 to 20 carbon atoms, such as _ propene, 3-methynole-l-pentene, 4-methyl-l-pentene, and 5-methyl-l-hexene. These olefins may be used alone or in combination of two or more.
- the polyolefin resin U-1) is preferably a homopolymer of propylene or a copolymer of propylene with another olefin.
- specific examples of the copolymer include propylene 'ethylene copolymer, propylene' 1-butene copolymer, propylene '1-1 hexene copolymer, and propylene .4-methylino-11-pentene copolymer. Is preferred.
- Polyolefin resin (j-1) can be used alone or in combination of two or more.
- the ethylene / ⁇ -olefin copolymer rubber (j_2) used in the present invention is ethylene / ⁇ -olefin copolymer rubber Z or ethylene / ⁇ -olefin copolymer / non-conjugated polyene copolymer rubber.
- ⁇ -olefins include propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 1-decene, 2-methyl-1-propene, 3-methyl-1-pentene, 4-olefins such as 4-methyl-1-pentene and 5-methyl-11-hexene having 3 to 20 carbon atoms. These orifices may be used alone or as a mixture of two or more.
- non-conjugated polyene examples include dicyclopentadiene, 1,4-hexadiene, cyclooctadiene, methylenenozoleponolenene, ethylidene nonorebornane, vinylnorbornene and the like.
- the ethylene / a-olefin copolymer rubber U-2) used in the present invention desirably has an ethylene content of 55 to 95 mol%, preferably 60 to 90 mol%.
- the ethylene-a-olefin copolymer rubber (j-2) used in the present invention has a viscosity of [ML 1 + 4 (100 ° C)] of 10 to 250, preferably 3 It is desirably in the range of 0 to 160.
- the iodine value of the ethylene-a-olefin copolymer rubber-2) is preferably 25 or less, and more preferably 5 to 25.
- an olefin thermoplastic elastomer (J) having an appropriate crosslinked structure can be obtained.
- the ethylene / ⁇ -olefin copolymer rubber (j-12) can be used alone or in combination of two or more.
- the ethylene-a-olefin copolymer rubber (j-2) and the ethylene / a-olefin copolymer rubber (j-2) other than the ethylene-a-olefin copolymer rubber (j-2) are not impaired. It can also be used in combination with rubber.
- propylene a-olefin copolymer rubber propylene
- ethylene-a-olefin copolymer rubber (j-2) When these rubbers other than the ethylene-a-olefin copolymer rubber (j-2) are used in combination with the ethylene-hydroolefin copolymer rubber (j_2), ethylene-a-olefin copolymer
- the rubber other than the olefin copolymer rubber (j-1 2) is based on 100 parts by weight of the total amount of the ethylene-a-olefin copolymer rubber (j-2) and the polyolefin resin (j-1). It is desirable to use 5 to 100 parts by weight, preferably 5 to 40 parts by weight.
- a softener (j_3) can be blended with the olefin thermoplastic elastomer (J).
- a softener usually used for rubber can be used, and among them, a mineral oil softener and a synthetic softener are preferable.
- Other softeners include coal tars such as coal tar and coal tar pitch; fatty oils such as castor oil, linseed oil, rapeseed oil, soybean oil, and coconut oil; tall oil, beeswax, carnauba wax, Waxes such as lanolin; fatty acids such as ricinoleic acid, palmitic acid, stearic acid, 12_hydroxystearic acid, montanic acid, oleic acid, and erlic acid or metal salts thereof; petroleum resins, cumarone indene resin, Synthetic polymers such as atactic polypropylene; ester plasticizers such as octyl phthalate, octyl radiate, and octyl sebacate; other microcrystalline wax, liquid polybutadiene or a modified or hydrogenated product thereof; Liquid chocolate is an example.
- coal tars such as coal tar and coal tar pitch
- fatty oils such as castor oil, linseed oil,
- the softener (j-13) is used in an amount of 5 to 200 parts by weight, preferably 15 to 150 parts by weight, more preferably 100 to 100 parts by weight of the ethylene / 1-olefin copolymer rubber (j-12). Preferably, it is used in a proportion of 20 to 80 parts by weight.
- the use of the softening agent 3) at such a ratio allows the flowability of the olefin thermoplastic elastomer composition (X 2 ) without deteriorating the physical properties such as heat resistance and tensile properties of the foam (X F2 ). Can be sufficiently improved.
- the softener U-3) may be added when producing the olefin thermoplastic elastomer (J), or may be added as an extender oil to the ethylene / ⁇ -olefin copolymer rubber (j-2) in advance. It may be added.
- thermoplastic thermoplastic elastomer (J) used in the present invention is not a thermosetting elastic material such as a conventional vulcanized rubber but a thermoplastic elastomer, recycling is easy.
- the olefin thermoplastic elastomer (J) used in the present invention comprises the polyolefin resin U-1), the ethylene-a-olefin copolymer rubber (j-2), and a softener ( It can be obtained by dynamically heat-treating the mixture with j-1).
- Crosslinking agents that can be used for dynamic heat treatment include organic peroxides, sulfur, phenolic resins, amino resins, derivatives of quinone, amine compounds, azo compounds, epoxy compounds, and isocyanates. And crosslinking agents commonly used in thermosetting rubbers. Of these, organic peroxides are particularly preferred.
- organic peroxide examples include dicumylperoxide, di-tert-butyltinoleperoxide, 2,5-dimethyl-1,2,5-di (tert-butylperoxy) hexane, 5-Dimethinole-1,5-di (tert-butylinoleoxy) hexine-1,3,3-bis (tert_butylinoleoxyisopropinole) Benzene, 1,1-bis (tert-butylinolenooxy) ) 1,3,3,5-trimethinolecyclohexane, n-ptinole-4,4-bis (tert-butylinolenox) norrelate, benzoinoleperoxide, p-clon benzoinolenorenox Sid, 2,4-dichlorobenzene benzoinolenolexoxide, tert-butylbutylenoleoxybenzoate, tert
- 2,5-dimethyl-2,5-di- (tert-butylperoxy) hexane, 2,5-dimethinole_2,5-di- (tert-butyl) are preferable in terms of odor and scorch stability.
- the organic peroxide is a mixture of a polyolefin resin (j-1), an ethylene.a-olefin copolymer rubber (j-12), and a mixture of a softening agent and the like used if necessary. It is used in an amount of 0.05 to 3 parts by weight, preferably 0.1 to 2 parts by weight based on parts by weight.
- Divinyl benzene is easy to handle, has good compatibility with the polyolefin resin (j-11) and the ethylene / ⁇ -olefin copolymer rubber (j-12), which are the main components of the above-mentioned crosslinked material, and It has the effect of solubilizing organic peroxides and works as a dispersant for organic peroxides, so that the cross-linking effect of heat treatment is uniform and the olefin thermoplastic elastomer (J) has a good balance between fluidity and physical properties. ) Is obtained.
- the cross-linking aid or the polyfunctional bubble monomer as described above is used in a ratio of 0.1 to 3% by weight, preferably 0.3 to 2% by weight, based on the whole of the above-mentioned cross-linked processed material. Is desirable.
- the mixing ratio of the crosslinking aid or the polyfunctional monomer is in the above range, the obtained thermoplastic elastomer does not have the crosslinking aid and the polyfunctional vinyl monomer remaining as unreacted monomers in the elastomer. Therefore, there is no change in physical properties due to heat history during processing and molding, and the fluidity is excellent.
- the term "dynamically heat-treating" refers to kneading the above components in a molten (melted) state.
- a known kneading apparatus for example, an open mixing roll, a non-open type bumper mixer, an extruder, a kneader, a continuous mixer, or the like is used.
- a non-open type kneading device is preferable, and kneading is preferably performed in an atmosphere of an inert gas such as nitrogen gas or carbon dioxide gas.
- the kneading temperature for the dynamic heat treatment is usually 150 to 280 ° C, preferably 170 to 240 ° C, and the kneading time is 1 to 20 minutes, preferably 1 to 5 minutes. desirable.
- the applied shearing force is preferably a shear rate of 10 to 1 000 sec—preferably 100 to 1 000 sec 1 .
- the olefin thermoplastic elastomer (J) preferably used in the present invention has a gel content calculated by the following of 10% by weight or more, preferably 20% by weight or more, particularly preferably 45% by weight or more. It is desirable. Gel content is 10% by weight. If / is greater than zero, heat resistance, tensile strength, flexibility, weather resistance, rubber properties such as resilience ⁇ is superior, also suitable for recycling than vulcanized rubber foam (X F2) is obtained .
- thermoplastic elastomer was weighed to about 10 Om g, cut into 0.5 mm X O. 5 mm X 0.5 mm strips, and then the obtained strips were placed in a closed container for 30 m 1 Immersed in cyclohexane at 23 ° C for 48 hours. Next, the sample is taken out on a filter paper and dried at room temperature for at least 72 hours until a constant weight is obtained.
- the value obtained by subtracting the weight of the cyclohexane-insoluble components (fibrous filler, filler, pigment, etc.) other than the polymer component from the weight of the dried residue is referred to as the “final weight that has been captured”. (Y) ".
- the weight of the cyclohexane-soluble component other than the polymer component eg, softener
- the weight of the cyclohexane-insoluble component other than the polymer component fibrous filler, filler, pigment, etc.
- the value shall be “the initial weight captured (X) J.
- gel content (cyclohexane-insoluble content) is determined by the following equation.
- Gel content [weight. /. ]
- the olefinic thermoplastic (K) used in the present invention has an olefin content of 50 to 100 mol%, preferably 60 to: L00 mol%, and MFR (AST MD-123-8-6). 5 T. 230 ° C, 2.16 kg load) is 0.01 to 2 g / 10 min, preferably 0.02 to 3/3/10 min ⁇ -olefin polymer or It is a copolymer.
- ⁇ examples include the polyolefin resin (j-11) satisfying the above physical properties.
- the olefinic thermoplastic (K) has a propylene homopolymer and a propylene content of 50 mol% or more, preferably 60 to 95 mol. /.
- the propylene- ⁇ -olefin copolymer is particularly preferred.
- the melt tension of the obtained Olefin-based thermoplastic elastomer composition (X2) can be improved.
- a foam having a high expansion ratio ( XF2 ) can be obtained.
- the olefin thermoplastic resin (K) can be used alone or in combination of two or more.
- the olefin thermoplastic resin (K) is used in an amount of 1 to 20 parts by weight, preferably 1 to 10 parts by weight, based on 100 parts by weight of the olefinic thermoplastic elastomer (J). Used in parts by weight.
- a foam (XF 2 ) having excellent flexibility and a high expansion ratio can be obtained.
- the olefinic thermoplastic (K) is used in combination with an olefinic thermoplastic elastomer (J) prepared by dynamic heat treatment, and the olefinic thermoplastic (K) itself is The feature is that it is not subjected to any heat treatment.
- Polyolefin resin is used for the preparation of olefin-based thermoplastic elastomer (J).
- the base layer of the foam laminate of the present invention is a foam, and this foam is made of an olefin thermoplastic elastomer (J), an olefin thermoplastic (K), and the blowing agent (B). Can be obtained by foaming the olefinic foamable composition (X 3 ) containing
- the foaming agent ( ⁇ ) is preferably used in an amount of usually 0.5 to 20 parts by weight, preferably 1 to 10 parts by weight, based on 100 parts by weight of the thermoplastic thermoplastic elastomer (J).
- a foaming aid may be added to the olefinic foamable composition ( ⁇ 3 ).
- the foaming aid include compounds containing metals such as zinc, calcium, lead, iron, and barium; organic acids such as citric acid, salicylic acid, phthalic acid, stearic acid, and oxalic acid; urea and derivatives thereof.
- the foaming aid is preferably used in an amount of usually 0.1 to 20 parts by weight, preferably 1 to 10 parts by weight, based on 100 parts by weight of the thermoplastic thermoplastic elastomer (J).
- the “foaming aid” has functions such as lowering the decomposition temperature of the foaming agent, accelerating the decomposition, and homogenizing the bubbles.
- an inorganic porous powder that adsorbs an inorganic gas for example, zeolite, a resin having a large amount of adsorbing an inorganic gas, for example, a polycarbonate resin, or a nucleating agent for foaming, can also be blended.
- the olefin foamable composition (X 3 ) may further include a filler, a heat stabilizer, an anti-aging agent, a weather stabilizer, an antistatic agent, a wetting agent, a metal soap, a lubricant such as a wax, if necessary.
- a filler such as pigments, dyes, flame retardants, and anti-blocking agents can be blended within a range that does not impair the object of the present invention.
- a filler that is normally used in rubber suitable for example calcium carbonate, calcium Kei acid, clay, kaolin, talc, Silica, diatomaceous earth, mica powder, asbestos, palladium sulfate, aluminum sulfate, calcium sulfate, magnesium carbonate, molybdenum disulfide, glass fiber, glass sphere, shirasu balloon, graphite, alumina, etc.
- fillers are preferably used in an amount of usually 40 parts by weight or less, preferably 1 to 30 parts by weight, based on 100 parts by weight of the olefin-based thermoplastic elastomer (J).
- the foaming composition ( ⁇ 3 ) comprises an olefin thermoplastic elastomer (J), an olefin thermoplastic ( ⁇ ) and a foaming agent ( ⁇ ), and a foaming auxiliary compounded as required. It can be prepared by compounding a compound such as a wetting agent.
- the compounding method is as follows: Olefin type thermoplastic elastomer
- a blending agent such as a foaming aid and a wetting agent.
- the olefinic thermoplastic (K) and the blowing agent (B) may be mixed simultaneously or separately. If mixed separately, use olefin-based heat
- the thermoplastic elastomer (J) can be mixed with the thermoplastic thermoplastic resin (K), and then the blowing agent (B) can be mixed. Alternatively, the order of the mixing may be reversed.
- the desired foam (XF 2 ) can be obtained. Can not.
- the thermoplastic plastic (K) is thermally decomposed to reduce its molecular weight, or is crosslinked and gelled by heat, and the melt viscosity required to obtain the desired foam (XF2) is greatly deviated. ) Is decomposed and gas is released.
- Specific methods for blending the olefinic thermoplastic elastomer (J), the olefinic thermoplastic plastic (K) and the blowing agent (B) include, for example, the olefinic thermoplastic elastomer (J).
- the pellets, the olefin thermoplastic (K) and the foaming agent (B) are kneaded with a tumbler type Brabender, a V type brabender, a ribbon blender, a Henschel mixer, etc., and then released if necessary.
- Examples of the mixing method include a mixing roll, a non-release type Banbury mixer, an extruder, a kneader, and a continuous mixer.
- the weather stabilizer, the heat stabilizer, the antioxidant, the pigment, the dye, and the like may be blended in any of the above steps.
- the ultrahigh molecular weight polyolefin resin which is an ultrahigh molecular weight polyolefin resin having an intrinsic viscosity [7] measured in 135 ° C decalin of 3.5 to 8.3 d 1 / g
- Olefin-based thermoplastic elastomer composition (Z 2 ) containing 5-200 parts by weight of a polyolefin resin (G) based on 100 parts by weight of the olefin-based thermoplastic elastomer (C)
- Plastic elastomer composition Z 3
- the olefin-based foam laminate of the present invention comprises: a base layer made of the foam (XF 1 ) or the foam (XF 2 ); the ultrahigh molecular weight polyolefin resin (Y); and an olefin thermoplastic elastomer.
- a base layer made of the foam (XF 1 ) or the foam (XF 2 ); the ultrahigh molecular weight polyolefin resin (Y); and an olefin thermoplastic elastomer.
- the skin layer may be laminated on the entire surface of the substrate layer, may be laminated on only a part of the substrate layer, or may be another layer. When the skin layer is laminated only on a part of the substrate layer, the substrate layer may be exposed on the surface where the skin layer is not laminated.
- the base layer and the skin layer may be laminated with an adhesive, but are preferably fused.
- the thickness of the laminate is not particularly limited, but the thickness of the base material layer is 0.1 to 50 mm, preferably 0.5 to 45 mm, and the thickness of the skin layer is 5 ⁇ n! ⁇ 10mm, preferably 10 ⁇ ! Desirably, it is about 8 mm.
- the expansion ratio of the foam as a base material layer (X F1) or foam (X F 2) is not particularly limited, from 1.1 to 20 times, good Mashiku is desirably 2 to 0 times.
- ethylene-based thermoplastic elastomer one of (A) is sufficiently foamed, can expansion ratio is easily formed even foam a high expansion ratio of more than 2 times (X F 1).
- the Orefin type thermoplastic (K) is sufficient foaming can expansion ratio is easily formed even foam a high expansion ratio of more than 2 times (X F2).
- the olefin-based foam laminate of the present invention allows the base layer to have a high expansion ratio as described above. It has a soft touch at ⁇ , and has excellent appearance, abrasion resistance, durability, and sliding characteristics. Are better. In particular, it has excellent wear resistance under bad conditions. Further, the laminate of the present invention can be easily produced and can be recycled, so that it is economically excellent.
- the olefin-based foam laminate of the present invention comprises the foam (XFI) or the foam described above. (XF 2 ) as a base layer, and the above-mentioned ultrahigh molecular weight polyolefin resin (Y), an olefin thermoplastic elastomer composition (Z) or an olefin thermoplastic elastomer composition (Z to (Z 3 ))
- the lamination method is not particularly limited, and depends on the shape, size, required physical properties, etc. of the final product, but, for example, the base layer and the skin layer are simultaneously formed by a multilayer extruder. In this case, a method of co-extrusion and heat-sealing, etc.
- an ethylene-based thermoplastic elastomer composition (X is foamed during co-extrusion and heat-sealed to form a foam ( XF
- the foamable composition (X 3 ) is foamed when co-extrusion molding and heat-sealing to form a foam (X F 2 ).
- the method of such heat fusion is as follows. Without requiring Chakuzai, easily can Rukoto give a foam laminate with a simple one-step, moreover interlayer adhesion between the substrate layer and the skin layer is strong.
- the olefin foam laminate of the present invention can be suitably used for automobile parts such as weather strips for automobiles; building materials such as gaskets and sealing materials.
- weather strips for automobiles include door-to-weather strip, bonnet-work-to-the-strip, trunk noreme weather strip, Sannorefe weather strip, ventilator weather strip, corner material and the like.
- building materials include building materials such as gaskets, airtight materials, jointing materials, and sealing materials for door stops.
- leisure goods such as golf club grips, baseball pad grips, swimming fins, and underwater glasses, hose protection materials, cushioning materials, and the like can be mentioned.
- FIG. 1 shows an example of a cross-sectional structure of an automotive weatherstrip including the olefin foam laminate of the present invention.
- the automobile weather strip 1 shown in FIG. 1 has a thin plate-shaped core member 2 in a cross section and a sliding member provided on a surface of the core member 2 and curved so as to be in sliding contact with a window glass. And a contact 3.
- the sliding portion 3 is made of the olefin foam laminate of the present invention in which the base material layer 4 and the skin layer 5 are laminated, and is provided so that the skin layer 5 is on the surface in sliding contact with the glass.
- the sliding member of the present invention is a sliding member made of the above-described olefin-based foam laminate.
- the sliding member of the present invention is made of the above-mentioned olefin-based foam laminate of the present invention, it has a soft touch and is excellent in appearance, abrasion resistance, durability and sliding characteristics. In addition to being easy to manufacture, it is easy to recycle because it is made of an olefin polymer as the main raw material, and it is economical.
- the automotive weatherstrip of the present invention is an automotive weatherstrip comprising the above-mentioned olefin foam laminate.
- the automotive weather strip of the present invention is made of the above-mentioned olefin foam laminate of the present invention, has a soft feel, and is excellent in appearance, abrasion resistance, durability and sliding properties. .
- it is easy to recycle because it uses an olefin polymer as a main raw material, and is excellent in economic efficiency.
- the building sealing material of the present invention is a building sealing material comprising the above-mentioned olefinic foam laminate of the present invention. Since the architectural sealing material of the present invention is made of the above-mentioned olefinic foam laminate of the present invention, it has a soft touch and is excellent in appearance, abrasion resistance, durability and sliding properties. In addition to being easy to produce, it is easy to recycle because it is made of an olefin-based polymer as the main raw material, and is excellent in economic efficiency.
- the olefin foam laminate of the present invention has a high expansion ratio, a flexible feel, and excellent appearance, abrasion resistance, durability, and sliding characteristics.
- it since it has excellent wear resistance under adverse conditions, it can be suitably used as a weather strip for automobiles.
- the laminate of the present invention can be easily produced, and since the olefin-based polymer is used as a main raw material, the laminate is easy to recycle and is excellent in economical efficiency.
- the present invention will be described with reference to examples, but the present invention is not limited to these examples.
- Linear low-density polyethylene (density; 0.920 gZcm 3 , MFR; 2.1 g / min 10 min, ethylene content; 97.0 mol./., 4_methyl-1-pentene content; 3. 30% by weight of ethylene 'propylene.dicyclopentadiene copolymer rubber (ethylene content; 77 mol./., Mooney viscosity ML 1 + 4 (100 ° C); 145, iodine value; 1 2) 70 parts by weight were mixed with a Henschel mixer.
- a 12.7 mm thick, 29.0 mm diameter cylindrical sample was injection molded from 1) and its compression set (JISK 6262, 70 ° C, 22 hours) was measured. Met. When the pellet / measurement flow rate (JISK 7120, 230 ° C, 10 kg load) was measured using this pellet, it was 2 gZ 10 min.
- foamable composition c 0 parts by weight by a tumbler type Brabender, were formulated foamable composition c
- the foamable composition is extruded at a die temperature of 150 ° C. to foam and mold the core material and the base material layer, and at the same time, the ultrahigh molecular weight polyethylene composition (Y-1) of the above (2) is mixed with 230
- a skin layer was formed by co-extrusion molding at a temperature of ° C, and the base layer and the skin layer were heat-sealed to produce a weather strip shown in FIG.
- the thickness of the base material layer was 2 mm, and the thickness of the skin layer was 100 / xm.
- the expansion ratio of the obtained weather strip was 4.8 times.
- the obtained weather strip was mounted on a test window frame, and a window glass having a thickness of 3.2 mni was fitted thereto, and a durability test (upper and lower window glass test) was performed. As a result, this weather strip did not wear out even after 50,000 repetitions of window glass up-and-down testing, and maintained its function as a weather strip without wear.
- Example 11-1 30 parts by weight of the linear low-density polyethylene used in Example 11-1, 70 parts by weight of the ethylene / propylene / dicyclopentapentane copolymer rubber used in Example 11-1 and a mineral oil-based softener (paraffin An ethylene-based thermoplastic elastomer (A-2) was obtained in the same manner as in Example 11 using 40 parts by weight of a system oil, manufactured by Idemitsu Kosan Co., Ltd., PW-380, trade name. Using the obtained ethylene-based thermoplastic elastomer (A-2), the compression set MFR was measured in the same manner as in Example 11-11. As a result, the compression set was 46%, and the MFR was 4 g / Omin.
- A-2 ethylene-based thermoplastic elastomer
- Example 1-1 ethylene-based thermoplastic elastomer
- Example 11-1 a polyester strip was formed with the same skin layer as in Example 11-1. They were fabricated and subjected to a durability test. As a result, the weatherstrip survived 50,000 repetition tests and maintained its function as a weatherstrip. The expansion ratio of the obtained weatherstrip was 3.7 times.
- Example 11 Using this ethylene-based thermoplastic elastomer (A-3), a foaming composition was blended in the same manner as in Example 11 to produce a weatherstrip with the same skin layer as in Example 11-11. A durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip. The foaming ratio of the obtained weather strip was 3.0 times.
- A-3 ethylene-based thermoplastic elastomer
- Example 11-1 15 parts by weight of the linear low-density polyethylene used in Example 11-1, 85 parts by weight of the ethylene 'propylene' dicyclopentadiene copolymer rubber used in Example 11-1, and a propylene homopolymer (MFR 1.5 g / 10 min) (PP-2) 20 parts by weight of ethylene thermoplastic elastomer (A-14) was obtained in the same manner as in Example 1-1.
- PP-2 propylene homopolymer
- A-14 20 parts by weight of ethylene thermoplastic elastomer
- the compression set MFR was measured in the same manner as in Example 1-1.
- the compression set was 57%, and MFI iS gZl Omin.
- Example 11 ethylene-based thermoplastic elastomer (A-4)
- A-4 ethylene-based thermoplastic elastomer
- a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip.
- the expansion ratio of the obtained weather strip was 2.8.
- Example 11 Extending oil (paraffinic oil, Idemitsu Kosan Co., Ltd.) to 30 parts by weight of the linear low-density polyethylene used in Example 11 and the ethylene / propylene / dicyclopentene copolymer rubber used in Example 11-1 ), PW-380 (trademark), 40 parts by weight, and 10 parts by weight of an oil-extended ethylene / propylene / dicyclopentene copolymer rubber, and ethylene-based in the same manner as in Example 11-1.
- a thermoplastic elastomer (A-5) was obtained.
- compression set and MFR were measured in the same manner as in Example 11-11. As a result, the compression set was 43%, and the MFR was 4 gZl Omin.
- Ethylene 'Propylene' 5-ethylidene-2-norbononene copolymer rubber (ethylene content; 70 mol 0 / o, iodine value; 12, Mooney viscosity [ML 1 + 4 (100 ° C)]; 120) 60 parts by weight, polypropylene (MFR (ASTM D-1 238-65 T, 230 ° C, 2.16 kg load); 13 g 10 minutes, density: 0.91 gZc m 3 , X-ray diffraction method 40% by weight was kneaded for 5 minutes in a nitrogen atmosphere at 180 ° C.
- thermoplastic thermoplastic elastomer (C-1) The gel content of the obtained thermoplastic thermoplastic elastomer (C-1) was 78% by weight as determined by the above method.
- thermoplastic elastomer (C-1) of (1) 100 parts by weight of the above-mentioned thermoplastic elastomer (C-1) of (1) and silicone oil (manufactured by Dow Corning Toray Co., Ltd., SH 200-3000 c)
- This olefin-based thermoplastic elastomer composition (Z1-2) and the same foamable composition as in Example 1-1 were co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip.
- Example 1 One part by weight of the olefin thermoplastic elastomer (C_1) obtained in 16 and a fluorine-based polymer (Dynamer FX-966, manufactured by Sumitomo SLIM Co., Ltd.) 13 (fluorine polymer content 90%), trademark) (E-1) 3 parts by weight are kneaded with a twin-screw extruder to obtain an olefinic thermoplastic elastomer composition (Z1-3) for the skin layer. Obtained.
- This olefin-based thermoplastic elastomer composition (Z1-3) and the same foamable composition as in Example 1-1 were co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip.
- olefin thermoplastic elastomer (C-1) obtained in Examples 1-6, and an antistatic agent (Electrostripper TS-6B, trade name, manufactured by Kao Corporation) (F-1) 3 parts by weight were cooled with a twin-screw extruder to obtain an olefin-based thermoplastic elastomer composition (Z1-4) for the skin layer.
- This olefin-based thermoplastic elastomer composition (Z1-4) and the same foamable composition as in Example 1-1 were co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip.
- Example 11-6 100 parts by weight of the olefin thermoplastic elastomer (C-1) obtained in Example 11-6 and 10 parts by weight of the ultrahigh molecular weight polyolefin composition (Y-1) used in Example 11-1
- the mixture was kneaded with a twin-screw extruder to obtain an oil-based thermoplastic elastomer composition (Z1-5) for the skin layer.
- This olefin-based thermoplastic elastomer composition (Z1-5) and the same foamable composition as in Example 11-11 were co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip.
- Example 11 100 parts by weight of the olefin thermoplastic elastomer (C-1) obtained in Example 11-6, and 100 parts by weight of the ultrahigh molecular weight polyolefin composition (Y-1) used in Example 11-1 And 2 parts by weight of silicone oil (D-1) were kneaded with a twin-screw extruder to obtain an olefin-based thermoplastic elastomer composition (Z1-6) for a skin layer.
- This olefin-based thermoplastic elastomer composition (Z1-6) and the same foamable composition as in Example 11-11 were co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip.
- olefin thermoplastic elastomer (C-1) 100 parts by weight of the olefin thermoplastic elastomer (C-1) obtained in Example 11-6, 2 parts by weight of the silicone oil (D-1) used in Example 11-1 and polypropylene (MFR) (ASTM D-123 8-65 T, 230 ° C, 2.16 kg load); 13 g / l 0 min, density; 0.9 1 gZcm 3 (G-1) 30 parts by weight Was kneaded with a twin-screw extruder to obtain an olefin-based thermoplastic elastomer composition (Z 1-7) for a skin layer.
- MFR polypropylene
- This olefin-based thermoplastic elastomer composition (Z1-7) and the same foamable composition as in Example 11 were co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip.
- the durability test was performed by the same method using a conventional weatherstrip (laminated structure in which a nylon film was bonded to a soft vinyl chloride resin layer). As a result, destruction occurred at the contact surface with the window glass at 250,000 times, and the frictional resistance with the window glass increased significantly, making it unusable for use.
- a conventional weatherstrip laminated structure in which a nylon film was bonded to a soft vinyl chloride resin layer.
- thermoplastic elastomers (A-1), (A-2), (A-3),
- Table 1 shows the conditions of the dynamic heat treatment in the production of (A-4) and (A-5).
- A— 1 A— 2 A— 3 A— 4 A-5
- the unit of the amount of each component is part by weight.
- Silicone oil [SH-200 (3 000 cSt, trademark) manufactured by Dow Corning Co., Ltd.]
- Silicone oil-polypropylene masterbatch [Toray Dawko Oneng
- thermoplastic thermoplastic elastomer (J-1) (1) Manufacture of thermoplastic thermoplastic elastomer (J-1)
- this pellet was extruded at 210 ° C. under a nitrogen atmosphere using an extruder and subjected to dynamic heat treatment to obtain an olefin-type thermoplastic elastomer (J-1) having a gel content of 77% by weight.
- J-1 olefin-type thermoplastic elastomer having a gel content of 77% by weight.
- 100 parts by weight of the obtained thermoplastic thermoplastic elastomer (J-1) and 5 parts by weight of the thermoplastic thermoplastic plastic (K-1) were extruded at 210 ° C under a nitrogen atmosphere using an extruder.
- a pellet of an olebuin-based thermoplastic elastomer composition was produced.
- a cylindrical sample with a thickness of 12.7 mm and a diameter of 29.
- Omm is injection-molded from this pellet and subjected to compression set (JISK 6262, 70 ° C, 22:00 Was measured and found to be 36%.
- the melt flow rate (JISK 7120, 230 ° C, 10 kg load) of the pellet was measured, and the result was SS g / l Omin.
- thermoplastic thermoplastic elastomer (J-1) of the above (1) 100 parts by weight of the thermoplastic thermoplastic elastomer (J-1) of the above (1), 5 parts by weight of the thermoplastic thermoplastic resin (K-1), and 1.5 parts by weight of the foaming agent (B-2).
- J-1 thermoplastic thermoplastic resin
- B-2 the foaming agent
- the foamable composition is extruded at a die temperature of 150 ° C. to foam and mold the core material and the base material layer.
- the skin layer was formed by co-extrusion, and the base layer and the skin layer were heat-sealed to produce the weather strip shown in FIG.
- the thickness of the base layer was 2 ⁇ 1 !!, and the thickness of the skin layer was 100 m.
- the expansion ratio of the obtained weather strip was 2.2 times.
- the obtained weather strip was mounted on a test window frame, and a window glass having a thickness of 3.2 mm was fitted thereinto, and a durability test (upper and lower window glass test) was performed. As a result, the weather strip did not lose its function even after the 50,000-time window glass vertical repetition test, and maintained its function as a weather strip without wear.
- Example 2-1 using the above-mentioned olefin thermoplastic elastomer (J-12), an olefin foamable composition was compounded in the same manner as in Example 2-1.
- a weatherstrip was produced using the same skin layer as in Example 2-1 and a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip.
- the foaming ratio of the obtained weather strip was 2.3 times.
- Example 2-1 olefin thermoplastic elastomer
- a weatherstrip was prepared using the same skin layer as in Example 2_1, and a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip. The foaming ratio of the obtained weather strip was 2.3 times.
- the compression set was 33%, and the MFR was 42 gZl Omin.
- a foamable foamable composition was compounded in the same manner as in Example 2-1.
- a weatherstrip was produced using the same skin layer as in Example 2-1 and a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip.
- the foaming ratio of the obtained weather strip was 2.6 times.
- thermoplastic elastomer (C-2) of (1) and 2 parts by weight of organopolysiloxane (D-1) are kneaded with a twin-screw extruder to form a skin layer.
- a olefin-based thermoplastic elastomer composition (Z2-1) was obtained.
- This olefinic thermoplastic elastomer composition (Z2-1) and the same olefinic foamable composition as in Example 2-1 were co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip withstood 50,000 repetitions and maintained its function as a weatherstrip.
- Example 2-6 This olefinic thermoplastic elastomer composition (Z2-1) and the same olefinic foamable composition as in Example 2-1 were co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip withstood 50,000 repetitions and maintained its function as a weatherstrip.
- Example 2 _ 7 This olefin-based thermoplastic elastomer composition (Z2-2) and the same olefin-based foamable composition as in Example 2-1 were co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip.
- Example 2 _ 7 This olefin-based thermoplastic elastomer composition (Z2-2) and the same olefin-based foamable composition as in Example 2-1 was co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip.
- Example 2 _ 7 This olefin-based thermoplastic elastomer composition (Z2-2) and the same olefin-based foamable composition as in Example 2-1 were co-extruded to produce a weather strip, and a durability test was performed. As a result,
- thermoplastic elastomer (C-2) obtained in Example 2-5 100 parts by weight of the olefin thermoplastic elastomer (C-2) obtained in Example 2-5 and 3 parts by weight of the fluoropolymer (E-1) were kneaded with a twin-screw extruder to form a skin layer.
- a olefin-based thermoplastic elastomer composition (Z 2-3) was obtained.
- Example 2-8 This olefin-based thermoplastic elastomer composition (Z2-3) and the same olefin-forming foamable composition as in Example 2-1 were co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip.
- Example 2-8 This olefin-based thermoplastic elastomer composition (Z2-3) and the same olefin-forming foamable composition as in Example 2-1 were co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip.
- Example 2-8 This olefin-based thermoplastic elastomer composition (Z2-3) and the same olefin-forming foamable composition as in Example 2-1 were co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip survived
- Example 2-9 100 parts by weight of the olefin thermoplastic elastomer (C-2) obtained in Examples 2-5 and 3 parts by weight of the antistatic agent (F-1) were kneaded with a twin-screw extruder to form a skin layer. Olefin thermoplastic elastomer composition (Z2-4) was obtained. This olefin-based thermoplastic elastomer composition (Z2-4) and the same olefin-based foamable composition as in Example 2-1 were co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip withstood 50,000 repetitions and maintained its function as a weatherstrip.
- Example 2-9 100 parts by weight of the olefin thermoplastic elastomer (C-2) obtained in Examples 2-5 and 3 parts by weight of the antistatic agent (F-1) were kneaded with a twin-screw extruder to form a skin layer. Olefin thermoplastic e
- thermoplastic thermoplastic elastomer (C-2) obtained in Example 2-5 100 parts by weight of the thermoplastic thermoplastic elastomer (C-2) obtained in Example 2-5 and 100 parts by weight of the ultrahigh molecular weight polyolefin composition (Y-1) were kneaded by a twin-screw extruder.
- an olefinic thermoplastic elastomer composition (Z2-5) for the skin layer was obtained.
- Example 2-5 100 parts by weight of the olefin thermoplastic elastomer (C-12) obtained in Example 2-5, 100 parts by weight of the ultrahigh molecular weight polyolefin composition (Y-1), and the organopolysiloxane (D- 1) 2 parts by weight were kneaded with a twin-screw extruder to obtain an olefin thermoplastic elastomer composition (Z2-6) for the skin layer.
- Y-1 ultrahigh molecular weight polyolefin composition
- D- 1 organopolysiloxane
- This olefin-based thermoplastic elastomer composition (Z2-7) and the same olefin-based foamable composition as in Example 2-1 were co-extruded to produce a weather strip, and a durability test was performed. As a result, the weatherstrip survived 50,000 repeated tests and maintained its function as a weatherstrip.
- Example 2-1 A durability test was performed in the same manner as in Example 2-1 using a conventional weatherstrip (laminated structure in which a nip film was bonded to a soft vinyl chloride resin layer). As a result, crushing occurred at the contact surface with the window glass after 25,000 times, and the frictional resistance with the window glass increased remarkably, making it unusable.
- a conventional weatherstrip laminated structure in which a nip film was bonded to a soft vinyl chloride resin layer
- Example 2 A sliding part 3 was cut out from the weatherstrip of Example 11 (see Fig. 1) to form a test piece.
- a glass wear element width 20 nim, height 3 (0 mm, thickness 4.5 mm) 7.
- a load of 3 kg was applied to the glass wear element 7 in the direction of arrow X, and the sliding contact part 3 was reciprocated with a stroke of 10 Omm in the direction of arrow Y to perform the wear test went.
- Example 3-1 the olebuin-based thermoplastic elastomer (J-1) for the base material layer of Example 2-1 and the olefin for the skin layer of Example 2-1-11 were used.
- Comparative Example 3-1 a test piece composed of a single layer of the foamed base material layer of Example 2-1 (Comparative Example 3-1) Comparative Example 3-2), except that a test piece (Comparative Example 3_3) consisting of a single skin layer composed of the olefin-based thermoplastic elastomer composition (Z2-17) of Example 2-11 was used.
- Implementation A wear test with muddy water was performed in the same manner as in Example 3_1. Table 2 shows the results
- the flexibility of the foam laminate of the present invention was tested. That is, the laser strip of Example 2-11 was used as a test piece, and the test piece was pressed to test whether or not a sponge-like soft feel was obtained. Table 3 shows the results.
- Example 3-2 the off-line thermoplastic elastomer (J-1) for the base layer of Example 2_1 and the off-fin for the skin layer of Example 2-11 were used.
- (Comparative Example 3-4) composed of a non-foamed laminate obtained by laminating a thermoplastic elastomer composition (Z2-7), and a test specimen composed of a single layer of the foamed base material layer of Example 2_1 ( Comparative Example 3_5), except that a test piece (Comparative Example 3-6) consisting of a single layer of the skin layer composed of the olefin-based thermoplastic elastomer composition (Z2-7) of Example 2-11 was used. Tested in the same manner as in Example 3-2. Table 3 shows the results. Table 3 Evaluation * 1 Example 3--25 Comparative Example 3--4 2
- the olefin foam laminate of the present invention has a high expansion ratio, a flexible feel, and excellent appearance, abrasion resistance, durability, and sliding characteristics. It can be suitably used as a sealing material for use.
Landscapes
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01945705A EP1295712A4 (en) | 2000-06-30 | 2001-06-29 | MULTILAYERED OLEFINE FOAM PRODUCT AND ITS USE |
| US10/069,603 US7582352B2 (en) | 2000-06-30 | 2001-06-29 | Layered product olefin foam and use |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000203089A JP2002019029A (ja) | 2000-06-30 | 2000-06-30 | オレフィン系発泡積層体 |
| JP2000203088A JP2002019028A (ja) | 2000-06-30 | 2000-06-30 | オレフィン系発泡積層体 |
| JP2000-203089 | 2000-06-30 | ||
| JP2000-203088 | 2000-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002002316A1 true WO2002002316A1 (fr) | 2002-01-10 |
Family
ID=26595395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2001/005623 Ceased WO2002002316A1 (fr) | 2000-06-30 | 2001-06-29 | Produit stratifié de mousse oléfine et son utilisation |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7582352B2 (ja) |
| EP (1) | EP1295712A4 (ja) |
| KR (1) | KR100706088B1 (ja) |
| CN (1) | CN100473524C (ja) |
| TW (1) | TW565507B (ja) |
| WO (1) | WO2002002316A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2119775A1 (fr) | 2008-05-13 | 2009-11-18 | Commissariat a L'Energie Atomique | Dispositif, sytème et procédé microfluidique pour l'encapsulation contrôlée de particules ou amas de particules |
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| JP4803721B2 (ja) * | 2005-12-22 | 2011-10-26 | 株式会社ジェイエスピー | ポリエチレン系樹脂積層発泡体 |
| JP5209280B2 (ja) * | 2007-11-20 | 2013-06-12 | 株式会社ジェイテクト | 密封装置 |
| EP2177336A1 (en) * | 2008-10-17 | 2010-04-21 | Grupo Antolin-Ingenieria, S.A. | Method for manufacturing a vehicle trim panel |
| JP5512331B2 (ja) * | 2010-03-03 | 2014-06-04 | 積水化成品工業株式会社 | 発泡シート及び発泡樹脂容器 |
| JP6150578B2 (ja) * | 2013-03-26 | 2017-06-21 | 日東電工株式会社 | 通気部材 |
| GB2521995A (en) * | 2013-08-16 | 2015-07-15 | Thermoseal Group Ltd | Elastomeric blend composition and use in window spacers |
| US9878479B2 (en) | 2013-12-30 | 2018-01-30 | Toray Plastics (America), Inc. | Method to direct compound extruded structure for the production of irradiation crosslinked polypropylene foam |
| US9663958B2 (en) | 2013-12-31 | 2017-05-30 | Toray Plastics (America), Inc. | Methods of producing foam structures from recycled metallized polyolefin material |
| US9669600B2 (en) | 2014-12-30 | 2017-06-06 | Toray Plastics (America), Inc. | Coextruded, crosslinked multilayer polyolefin foam structures from recycled polyolefin foam material and methods of making the same |
| US9821533B2 (en) | 2014-12-30 | 2017-11-21 | Toray Plastics (America), Inc. | Coextruded, crosslinked multilayer polyolefin foam structures from recycled metallized polyolefin material and methods of making the same |
| US10384388B2 (en) | 2014-12-30 | 2019-08-20 | Toray Plastics (America), Inc. | Coextruded, crosslinked multilayer polyolefin foam structures and methods of making the same |
| JP6523030B2 (ja) * | 2015-04-15 | 2019-05-29 | 三井化学株式会社 | ポリエチレン樹脂組成物 |
| KR102398733B1 (ko) * | 2016-03-25 | 2022-05-16 | 미쓰이 가가쿠 가부시키가이샤 | 신축성 구조체, 다층 신축 시트, 방적사 및 섬유 구조체 |
| JP6790818B2 (ja) * | 2016-12-28 | 2020-11-25 | 住友ゴム工業株式会社 | ゴルフクラブ用グリップおよびゴルフクラブ |
| US11007761B2 (en) | 2017-03-31 | 2021-05-18 | Toray Plastics (America), Inc. | Method of making coextruded, cross-linked polyolefin foam with TPU cap layers |
| IT201700048110U1 (it) * | 2017-05-04 | 2018-11-04 | Cressi Sub Spa | Occhialini per nuoto |
| CA3067846C (en) | 2017-06-22 | 2023-07-11 | L'isolante K-Flex S.P.A. | Coated closed-cell foam tube insulations and methods for producing the same |
| US10501598B2 (en) | 2017-06-29 | 2019-12-10 | Toray Plastics (America), Inc. | Method of making coextruded, crosslinked multilayer polyolefin foam structures from recycled crosslinked polyolefin foam material |
| US10953576B2 (en) * | 2018-06-04 | 2021-03-23 | Shei Chung Hsin Ind. Co., Ltd. | Process for flexibly manufacturing wetsuit or garment by integrally forming a functional surface layer on a rubber foam substrate |
| US11590730B2 (en) | 2019-03-29 | 2023-02-28 | Toray Plastics (America), Inc. | Coextruded, crosslinked polyolefin foam with KEE cap layers |
| US11590677B2 (en) | 2019-03-29 | 2023-02-28 | Toray Plastics (America), Inc. | Method of making coextruded, crosslinked polyolefin foam with KEE cap layers |
| WO2021108615A1 (en) * | 2019-11-28 | 2021-06-03 | Sekisui Voltek, Llc | Split crosslinked polyolefin foam composition and method |
| US11976175B2 (en) | 2019-11-28 | 2024-05-07 | Sekisui Voltek, Llc | Split crosslinked polyolefin foam composition and method |
| CN115315478A (zh) * | 2020-03-31 | 2022-11-08 | 三井化学株式会社 | 热塑性弹性体组合物及其成型体 |
| JP7191431B1 (ja) * | 2022-06-22 | 2022-12-19 | 株式会社Tbm | 積層構造体 |
| CN116063798B (zh) * | 2022-12-29 | 2024-07-23 | 金发科技股份有限公司 | 一种耐高温开炼tpv材料及其制备方法和应用 |
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| EP0974617A1 (en) * | 1998-07-21 | 2000-01-26 | Mitsui Chemicals, Inc. | Resin compositions for skin members and laminates thereof |
Non-Patent Citations (1)
| Title |
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| See also references of EP1295712A4 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2119775A1 (fr) | 2008-05-13 | 2009-11-18 | Commissariat a L'Energie Atomique | Dispositif, sytème et procédé microfluidique pour l'encapsulation contrôlée de particules ou amas de particules |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100706088B1 (ko) | 2007-04-11 |
| TW565507B (en) | 2003-12-11 |
| US7582352B2 (en) | 2009-09-01 |
| EP1295712A4 (en) | 2008-11-26 |
| KR20020032558A (ko) | 2002-05-03 |
| US20020155275A1 (en) | 2002-10-24 |
| EP1295712A1 (en) | 2003-03-26 |
| CN1383399A (zh) | 2002-12-04 |
| CN100473524C (zh) | 2009-04-01 |
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