WO2019203003A1 - 積層フィルム - Google Patents
積層フィルム Download PDFInfo
- Publication number
- WO2019203003A1 WO2019203003A1 PCT/JP2019/014932 JP2019014932W WO2019203003A1 WO 2019203003 A1 WO2019203003 A1 WO 2019203003A1 JP 2019014932 W JP2019014932 W JP 2019014932W WO 2019203003 A1 WO2019203003 A1 WO 2019203003A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resin layer
- resin
- mass
- laminated film
- aromatic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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
- B32B27/08—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 synthetic resin
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/082—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
-
- 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
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J125/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Adhesives based on derivatives of such polymers
- C09J125/02—Homopolymers or copolymers of hydrocarbons
- C09J125/04—Homopolymers or copolymers of styrene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J153/02—Vinyl aromatic monomers and conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
Definitions
- the present invention relates to a laminated film in which there is little change in adhesive force due to a component transferred from an adherend, and hardly floats due to cutting after bonding.
- the problem of the present invention is that when the additive is bonded to the adherend on which the surface segregates with time, there is little change in the adhesive force due to the migration component from the adherend, and there is floating due to the cutting after the adherend is bonded. It is in providing the laminated film which is hard to generate
- the above-described problem is a laminated film having a resin layer A on one surface of a substrate, and the glass transition temperature (Tg) of the resin layer A, the frequency of the resin layer A is 1 Hz, and the strain is 0.01%.
- the measured storage elastic modulus at ⁇ 15 ° C. (hereinafter referred to as G ′ ( ⁇ 15 ° C.)) and the storage elastic modulus at 0 ° C. measured at a frequency of 1 Hz and a strain of 0.01% (hereinafter referred to as G ′).
- G ′ ⁇ 15 ° C.
- G ′ the storage elastic modulus at 0 ° C. measured at a frequency of 1 Hz and a strain of 0.01%
- the laminated film of the present invention has a base material and a resin layer A on one surface thereof.
- the resin layer A preferably has adhesiveness at room temperature, and indicates a layered layer having a finite thickness.
- the lower limit of the glass transition temperature (Tg) of the resin layer A is ⁇ 14 ° C.
- the lower limit of the glass transition temperature (Tg) of the resin layer A is preferably ⁇ 10 ° C.
- peeling may be difficult due to a migration component from the adherend after being bonded to the adherend.
- the glass transition temperature (Tg) of the resin layer A is higher than 40 ° C., the adhesive strength may be reduced.
- the glass transition temperature (Tg) of the resin layer A is a value obtained by measurement by a method described later.
- the glass transition temperature measured in the state of the mixture of all the compositions which comprise the said resin layer A is said.
- the upper limit of G ′ ( ⁇ 15 ° C.) / G ′ (0 ° C.) of the resin layer A is 5.0.
- the upper limit of G ′ ( ⁇ 15 ° C.) / G ′ (0 ° C.) is preferably 4.8, more preferably 4.6.
- the laminated film of the present invention has little change in adhesive strength and can provide a stable adhesive force over time. The present inventors have found that this can be realized by reducing the ratio of G ′ ( ⁇ 15 ° C.) and G ′ (0 ° C.) of the resin layer A.
- G ′ ( ⁇ 15 ° C.) / G ′ (0 ° C.) is greater than 5.0, the adhesive force change after bonding may increase due to the migration component from the adherend.
- the lower limit of G ′ ( ⁇ 15 ° C.) / G ′ (0 ° C.) is not particularly set, but is preferably 1.2, more preferably 3.0, and particularly preferably 4.0. If G ′ ( ⁇ 15 ° C.) / G ′ (0 ° C.) is less than 1.2, the adhesive strength may be too strong to make peeling difficult.
- the laminated film of the present invention has a base material and a resin layer A on one surface thereof.
- G ′ ( ⁇ 15 ° C.) of the resin layer A satisfies the relationship of 10 MPa ⁇ G ′ ( ⁇ 15 ° C.) ⁇ 100 MPa.
- G ′ ( ⁇ 15 ° C.) is preferably larger than 20 MPa, more preferably larger than 24 MPa.
- G ′ ( ⁇ 15 ° C.) is preferably less than 80 MPa, more preferably less than 45 MPa, and particularly preferably less than 40 MPa. If G ′ ( ⁇ 15 ° C.) of the resin layer A is 10 MPa or less, the adhesive force at the time of bonding becomes too high, and peeling may be difficult.
- G ′ ( ⁇ 15 ° C.) of the resin layer A is 100 MPa or more, the resin layer A is likely to float due to cutting after bonding.
- G ′ ( ⁇ 15 ° C.) and G ′ (0 ° C.) of the resin layer A are storage elastic moduli obtained by measurement by the method described later.
- composition for constituting the resin layer A of the laminated film of the present invention is not particularly limited as long as the effects of the present invention are not impaired, and known compositions such as acrylic, silicone, natural rubber, and synthetic rubber are available. Can be used. Among these, it is preferable to use a thermoplastic synthetic rubber-based pressure-sensitive adhesive from the viewpoint of recyclability, and among them, a styrene-based elastomer is more preferable.
- styrene elastomer examples include styrene / conjugated diene copolymers such as styrene / butadiene copolymer (SBR), styrene / isoprene / styrene copolymer (SIS), and styrene / butadiene / styrene copolymer (SBS).
- SBR styrene / conjugated diene copolymers
- SIS styrene / isoprene / styrene copolymer
- SBS styrene / butadiene / styrene copolymer
- HSBR hydrogenated styrene / butadiene copolymer
- SEBS styrene / ethylene butylene / styrene triblock copolymer
- SEB styrene / ethylene butylene diblock copolymer
- a styrene / isobutylene copolymer for example, a styrene / isobutylene / styrene triblock copolymer (SIBS) or a styrene / isobutylene diblock copolymer (SIB).
- SIBS styrene / isobutylene triblock copolymer
- SIB styrene / isobutylene diblock copolymer
- a mixture of these can be used.
- styrene / conjugated diene copolymers such as styrene / butadiene / styrene copolymer (SBS), hydrogenated products thereof, or styrene / isobutylene copolymers are preferably used. Only one type of styrenic elastomer may be used, or two or more types may be used in combination. Furthermore, you may use materials other than a styrene-type elastomer as needed.
- the lower limit is preferably 50% by mass when the entire resin layer A is 100% by mass from the viewpoint of the conditions relating to the storage elastic modulus to be satisfied in order to achieve the object of the invention.
- the upper limit is preferably 90% by mass, more preferably 80% by mass, and still more preferably 75% by mass.
- the lower limit of the weight average molecular weight of the styrene elastomer is preferably 50,000. When the weight average molecular weight is less than 50,000, the cohesive force of the resin layer A is lowered, and adhesive residue may be generated when the resin layer A is peeled off from the adherend.
- the upper limit of the weight average molecular weight of the styrene-based elastomer is preferably 400,000, more preferably 300,000. When the weight average molecular weight exceeds 400,000, the viscosity may increase and productivity may decrease.
- the lower limit of the styrene content in the styrenic elastomer is preferably 5% by mass, more preferably 10% by mass, and even more preferably 15% by mass when the entire styrene-based elastomer is 100% by mass.
- the upper limit of the styrene content in the styrene elastomer is preferably 60% by mass, more preferably 40% by mass, and still more preferably 30% by mass. If it exceeds 60% by mass, the adherence to the adherend will be lowered, and the adhesiveness may be insufficient particularly for the adherend having irregularities.
- the resin layer A of this invention contains a tackifier from a viewpoint of glass transition temperature (Tg) adjustment and storage elastic modulus adjustment.
- the tackifier include aliphatic petroleum resins, aromatic petroleum resins, aliphatic / aromatic petroleum resins, alicyclic petroleum resins, terpene resins, terpene phenol resins, rosin resins, alkylphenols. Examples thereof include xylene resins and xylene resins.
- a hydrogenated product obtained by hydrogenating these unsaturated bonds hereinafter referred to as hydrogenated can be used.
- the hydrogenated product is a completely hydrogenated resin in which unsaturated bonds are hydrogenated by 90% or more, and 10% to less than 90% of unsaturated bonds are hydrogenated.
- This resin is referred to as a partially hydrogenated resin.
- the hydrogenation rate was determined by measuring 1 H NMR (400 MHz) of the resin, the peak area value of 0.3 ppm to 3.3 ppm corresponding to the structure after the unsaturated bonds were hydrogenated, and the unsaturated bonds being water. It is calculated by comparing peak area values of 5.0 ppm or more and 7.4 ppm or less corresponding to the structure before being added.
- a resin obtained by hydrogenating 10% or more and less than 90% of unsaturated bonds of an aromatic petroleum resin is obtained by hydrogenating an aromatic partially hydrogenated petroleum resin, and a resin obtained by hydrogenating 90% or more. It is described as an aromatic fully hydrogenated petroleum resin.
- the upper limit of the content of the tackifier is preferably 50% by mass, more preferably 38% by mass, and still more preferably 33% by mass when the entire resin layer A is 100% by mass.
- the lower limit of the content of the tackifier is preferably 10% by mass, more preferably 20% by mass, and even more preferably 25% by mass.
- tackifiers it is preferable to use two or more types of the tackifiers.
- the resin layer A preferably contains all of the following (d) to (f).
- (D) Styrenic elastomer At least one resin selected from the group consisting of aliphatic petroleum resins, aromatic fully hydrogenated petroleum resins, and alicyclic petroleum resins
- the A group and the B group are a group consisting of an aromatic fully hydrogenated petroleum resin and an alicyclic petroleum resin (hereinafter referred to as A ′ group) from the viewpoints of glass transition temperature (Tg) adjustment and storage elastic modulus adjustment. And at least one resin selected from both groups of the group consisting of aromatic petroleum resins and aromatic partially hydrogenated petroleum resins (hereinafter referred to as B ′ group) is more preferable. It is an aspect.
- the softening point of the resin is preferably 110 ° C. or higher, more preferably 120 ° C. or higher.
- the softening point of the resin can be obtained by the ring and ball method defined in JIS K-2207: 2006.
- the resin layer A includes all of the following (d) to (f).
- Examples of the A ′ group resins include “Arcon” P series (P115, P125, P140) manufactured by Arakawa Chemical Co., Ltd., “T-REZ” H series (HA125, HB125) manufactured by TonenGeneral, etc., and a softening point of 110 ° C.
- Examples of the B ′ group resin described above include “Arcon” M series (M115, M135) manufactured by Arakawa Chemical Co., Ltd.
- the lower limit of the content of the resin selected from Group A is preferably 5% by mass, more preferably 8% by mass, and even more preferably 10% by mass.
- the upper limit of the resin selected from Group A is preferably 25% by mass, more preferably 20% by mass, and still more preferably 17% by mass. If the content of the resin selected from Group A exceeds 25% by mass, the adhesive strength may become too high, and peeling may be difficult.
- the lower limit of the content of the resin selected from Group B is preferably 5% by mass, more preferably 8% by mass, and still more preferably 10% by mass.
- the adhesive force may be reduced and floating may easily occur.
- the upper limit of the resin selected from Group B is preferably 25% by mass, more preferably 20% by mass, and still more preferably 17% by mass. If the content of the resin selected from Group B exceeds 25% by mass, the adhesive strength may be too high, and peeling may be difficult.
- the said resin layer A contains the following (1) and (2).
- the resin layer A of the present invention preferably contains a component that is soluble in chloroform and acetone and has a glass transition temperature (Tg_sol) of 50 ° C. or higher.
- the glass transition temperature (Tg_sol) can be applied to both chloroform and acetone by extracting the chloroform-soluble component of the resin layer A using chloroform and extracting the resulting chloroform-soluble component with acetone. It refers to the glass transition temperature of the component that is in solution.
- the lower limit of the content of the component that is soluble in chloroform and acetone in the resin layer A and has a glass transition temperature (Tg_sol) of 50 ° C. or higher is as follows: Preferably it is 10 mass%, More preferably, it is 25 mass%. If the content of a component that is soluble in chloroform and acetone and has a glass transition temperature (Tg_sol) of 50 ° C. or higher is less than 10% by mass, the adhesive force may be reduced and floating may occur. On the other hand, the upper limit of the content of a component that is soluble in chloroform and acetone in the resin layer A and has a glass transition temperature (Tg_sol) of 50 ° C.
- components that are soluble in chloroform and acetone and have a glass transition temperature (Tg_sol) of 50 ° C. or higher include aliphatic petroleum resins, aromatic petroleum resins, aliphatic / aromatic petroleum resins, and the like.
- a resin selected from the group consisting of (aromatic fully hydrogenated petroleum resin, aromatic partially hydrogenated petroleum resin, etc.) having a softening point of 110 ° C. or higher can be used.
- Tg glass transition temperature
- Tg_sol glass transition temperature
- an olefin resin may be added to the resin layer A of the present invention.
- an olefin-based resin By adding an olefin-based resin, the adhesive strength can be adjusted or good film-forming properties can be obtained.
- the olefin resin examples include low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, ultrahigh molecular weight polyethylene, low crystalline, amorphous ethylene / ⁇ -olefin copolymer, ethylene Propylene / diene terpolymer, crystalline polypropylene, low crystalline polypropylene, amorphous polypropylene, propylene / ethylene copolymer (random copolymer and / or block copolymer), propylene / ⁇ -olefin copolymer, propylene ⁇ Ethylene / ⁇ -olefin copolymer, polybutene, 4-methyl-1-pentene / ⁇ -olefin copolymer, ethylene / ethyl (meth) acrylate copolymer, ethylene / methyl (meth) acrylate copolymer, ethylene ⁇ N-Butyl (meth) acrylate copolymer
- the ⁇ -olefin is not particularly limited as long as it can be copolymerized with ethylene, propylene, 4-methyl-1-pentene.
- low density polyethylene linear low density polyethylene, ethylene / ⁇ -olefin copolymer, polypropylene, propylene / ⁇ -olefin copolymer, polybutene, low crystalline polypropylene, amorphous Polypropylene and 4-methyl-1-pentene / ⁇ -olefin copolymer are preferably used.
- the upper limit of the content of the olefin resin is preferably 80% by mass, more preferably 50% by mass, and still more preferably 40% by mass when the entire resin layer A is 100% by mass.
- the resin layer A of the present invention may contain particles for the purpose of controlling the adhesive strength of the resin layer A.
- the particles for example, inorganic particles or organic particles can be used, and organic particles that are less likely to damage the adherend are preferable.
- the organic particles include acrylic resin particles, styrene resin particles, polyolefin resin particles, polyester resin particles, polyurethane resin particles, polycarbonate resin particles, polyamide resin particles, silicone resin particles, and fluorine resin particles. Illustrated. Or the copolymer resin particle
- a lubricant may be added to the resin layer A of the present invention.
- a styrene elastomer is made into a chip by adding a lubricant, the chips are prevented from sticking and blocking each other, or the adhesive force is adjusted by being deposited on the surface of the resin layer A. Good extrudability can be obtained during melt extrusion.
- the lubricant include fatty acid metal salts such as calcium stearate and magnesium behenate, fatty acid amides such as ethylene bis stearamide and hexamethylene bis stearamide, polyethylene wax, polypropylene wax, paraffin wax and the like.
- the upper limit of the content of the lubricant is preferably 10% by mass, more preferably 5% by mass, and even more preferably 3% by mass when the entire resin layer A is 100% by mass.
- the content of the lubricant is more than 10% by mass, particularly when the adhesive force to the adherend having irregularities is insufficient, or when the resin layer A is molded by the melt extrusion method, a part of the lubricant is sublimated. May contaminate the base and adhere to the product.
- the resin layer A may contain an additive for the purpose of imparting a function to the resin layer A, such as a crystal nucleating agent, an antioxidant, a heat resistance imparting agent, a weather resistance agent, and an antistatic agent.
- an additive for the purpose of imparting a function to the resin layer A such as a crystal nucleating agent, an antioxidant, a heat resistance imparting agent, a weather resistance agent, and an antistatic agent.
- these additives may be used alone or in combination, but the upper limit of the total content is preferably 3% by mass, more preferably 2% by mass when the entire resin layer A is 100% by mass. It is. When the total content of the additives is more than 3% by mass, the product may bleed out from the resin layer A to cause defects in the product, or the adherend may be contaminated.
- the lower limit of the thickness of the resin layer A is not particularly limited, but is preferably 3 ⁇ m, more preferably 5 ⁇ m, and even more preferably 7 ⁇ m. When the thickness of the resin layer A is less than 3 ⁇ m, the adhesive strength of the resin layer A may be reduced.
- the upper limit of the thickness of the resin layer A is preferably 30 ⁇ m, more preferably 20 ⁇ m, and still more preferably 15 ⁇ m. When the thickness of the resin layer A exceeds 30 ⁇ m, it may be difficult to peel off the laminated film from the surface of the adherend.
- multilayer film of this invention is not specifically limited, As a resin used for a base material, polyolefin and polyester can be used, for example, and polyolefin can be made into a main component from a viewpoint of productivity or workability. preferable.
- the main component described here refers to a component having the highest mass% (a component having a large content) among the components constituting the substrate layer of the laminated film.
- polystyrene resin examples include, for example, low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, low crystalline or amorphous ethylene / ⁇ -olefin copolymer, polypropylene, propylene / ethylene copolymer.
- Copolymer (random copolymer and / or block copolymer), propylene / ⁇ -olefin copolymer, propylene / ethylene / ⁇ -olefin copolymer, ethylene / propylene / diene terpolymer, ethylene / ethyl (meth) acrylate
- Examples include copolymers, ethylene / methyl (meth) acrylate copolymers, ethylene / n-butyl (meth) acrylate copolymers, and ethylene / vinyl acetate copolymers. These may be used alone or in combination.
- the ⁇ -olefin is not particularly limited as long as it can be copolymerized with propylene or ethylene.
- ethylene For example, 1-butene, 1-hexene, 4-methyl-1-pentene, 1-octene, 1-pentene, Mention may be made of 1-heptene.
- polyethylene is particularly preferable from the viewpoint of processability.
- the base material is within the range that does not impair the effects of the present invention, and additives such as antistatic agents, mold release agents, antioxidants, weathering agents, crystal nucleating agents, resin modifiers such as polyolefins, polyesters, polyamides, and elastomers. You may contain a quality agent.
- the lower limit of the thickness of the substrate is not particularly limited, but is preferably 25 ⁇ m, more preferably 45 ⁇ m. If the thickness of the substrate is less than 25 ⁇ m, the laminated film may be easily broken during handling.
- the upper limit of the thickness of the base material is preferably 200 ⁇ m, and more preferably 188 ⁇ m. When the thickness of the base material exceeds 200 ⁇ m, the base material may remain wound.
- the base material of the laminated film of the present invention contains a small amount of each component constituting the resin layer A, including the styrene elastomer used for the resin layer A. This is preferable from the viewpoint of improving the affinity and increasing the adhesive force between the resin layer A and the substrate interface.
- a method of including the adhesive layer component in the base material it is preferable from the viewpoint of resin recycling and production cost reduction to adopt the method by adding the recovered raw material obtained by collecting and recycling this laminated film. It is a technique.
- the base material may have a resin layer B on the surface not having the resin layer A.
- the lower limit of the arithmetic average surface roughness Ra is preferably 0.20 ⁇ m, more preferably 0.30 ⁇ m, still more preferably 0.35 ⁇ m, and particularly preferably 0.45 ⁇ m.
- the laminated film of the present invention can control the roughness of the resin layer A by transferring the shape of the resin layer B to the resin layer A during winding. By setting the arithmetic average surface roughness of the resin layer B in the above range, the resin layer A is roughened during winding, and the contact area when the laminated film is bonded to the adherend is reduced. It is possible to suppress migration of the plasticizer.
- the resin layer A When the arithmetic average surface roughness of the resin layer B is less than 0.20 ⁇ m, the resin layer A may not be sufficiently roughened by winding, and the amount of plasticizer migration may increase and peeling may become difficult.
- the upper limit of the arithmetic average roughness Ra is not particularly set, but is preferably 2.0 ⁇ m. When the arithmetic average roughness Ra is too large, the roughness of the resin layer A becomes too large due to the transfer, and the adhesive force may decrease.
- polyolefin or polyester can be used, and it is preferable that polyolefin is a main component from the viewpoint of productivity and workability.
- the main component described here refers to a component having the highest mass% (a component having a large content) among the components constituting the substrate layer of the laminated film.
- polystyrene resin examples include, for example, low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, low crystalline or amorphous ethylene / ⁇ -olefin copolymer, polypropylene, propylene / ethylene copolymer.
- Polymer (random copolymer and / or block copolymer), propylene / ⁇ -olefin copolymer, propylene / ethylene / ⁇ -olefin copolymer, ethylene / ethyl (meth) acrylate copolymer, ethylene / methyl ( Examples thereof include a meth) acrylate copolymer, an ethylene / n-butyl (meth) acrylate copolymer, and an ethylene / vinyl acetate copolymer. These may be used alone or in combination.
- the ⁇ -olefin is not particularly limited as long as it can be copolymerized with propylene or ethylene.
- 1-butene, 1-hexene, 4-methyl-1-pentene, 1-octene, 1-pentene Mention may be made of 1-heptene.
- the base material is within the range that does not impair the effects of the present invention, and additives such as antistatic agents, mold release agents, antioxidants, weathering agents, crystal nucleating agents, resin modifiers such as polyolefins, polyesters, polyamides, and elastomers. You may contain a quality agent.
- a propylene / ethylene block copolymer is particularly preferable from the viewpoint of adjusting the roughness.
- the resin layer B may contain a release agent.
- the release agent include fluorine resins, silicone resins, fatty acid metal salts, fatty acid amides, inorganic particles, and organic particles.
- the release agent is not included, the surface shape of the resin layer A may be deformed when the laminated film is wound and unfolded, and the adhesive force may be reduced.
- the release agents from the viewpoint of a release effect, it is preferable to use at least one selected from the group consisting of a silicone resin and organic particles, and it is more preferable to use two in combination.
- the lower limit of the thickness of the resin layer B is not particularly limited, but is preferably 1 ⁇ m, more preferably 2 ⁇ m. If the thickness of the substrate is less than 1 ⁇ m, productivity may be reduced. Moreover, the upper limit of the thickness of the resin layer B is preferably 20 ⁇ m, more preferably 10 ⁇ m from the viewpoint of cost.
- the method for producing the laminated film of the present invention is not particularly limited.
- the layer obtained by coextrusion molding, T-die molding, co-extrusion molding, T-die molding or inflation molding, extrusion lamination, extrusion coating A method of laminating other layers by a known laminating method, such as a method of laminating each layer independently, and then laminating each obtained film by dry lamination, etc.
- a co-extrusion molding method in which each material of the base material and the resin layer A is supplied to a multilayer extruder for molding is preferable, and a T-die molding method is more preferable.
- the base material and the component of the resin layer A are each extruded from a melt extruder.
- the upper limit of the resin extrusion temperature is preferably 250 ° C, more preferably 230 ° C, and even more preferably 220 ° C.
- the extrusion temperature of the resin exceeds 250 ° C., thermal deterioration of the resin occurs, and adhesive residue may easily occur at the time of adhesive peeling.
- the laminated film of the present invention has a small change in adhesive force when stored in contact with an adherend, and is less likely to float due to cutting after bonding. Therefore, it can be suitably used as a surface protective film for various articles. it can. In particular, it can be suitably used, for example, as a surface protective film for building members. More specifically, the laminated film of the present invention is preferably used for protecting the decorative steel sheet surface.
- the temperature at which tan ⁇ reaches a maximum value at ⁇ 50 ° C. or higher and 50 ° C. or lower was defined as Tg.
- the maximum value was 2 or more
- the maximum value on the high temperature side was defined as Tg.
- the arithmetic average roughness Ra of the resin layer B is measured using a high-precision fine shape measuring instrument (SURFCORDER ET4000A) manufactured by Kosaka Laboratory, in accordance with JIS B0601-1994.
- SURFCORDER ET4000A high-precision fine shape measuring instrument manufactured by Kosaka Laboratory
- the scanning direction was the width direction, and measurement was performed 21 times at 10 ⁇ m intervals in the longitudinal direction, and three-dimensional analysis was performed for evaluation.
- the diamond needle with a stylus tip radius of 2.0 ⁇ m was used, and measurement was performed with a measuring force of 100 ⁇ N and a cutoff of 0.8 mm.
- Program step 1 Heat from 25 ° C. to 200 ° C. at 10 ° C./min, then keep at 200 ° C. for 5 minutes.
- Step 2 After cooling from 200 ° C. to 25 ° C. at ⁇ 10 ° C./min, hold at 25 ° C. for 5 minutes.
- Step 3 Heat from 25 ° C. to 150 ° C. at 10 ° C./min, then keep at 150 ° C. for 5 minutes.
- the maximum value of the temperature at which the slope of the DSC chart changes from the baseline slope is T_1, and the temperature is less than T_1.
- the minimum value of the temperature at which the slope of the DSC chart returned to the baseline slope was T_2, and Tg_sol was determined by the following calculation formula.
- the resin layers A and B were 10,000 times, and the base material and the laminated film were 1,000 times. Furthermore, the same measurement was performed 20 times in total, and the average value was used as the thickness of each of the base material, the resin layers A and B, and the total thickness of the laminated film.
- Adhesive strength The bonded sample obtained in (7) was stored in a room at 23 ° C. for 24 hours, and the bonded sample obtained in (7) was stored in a room at 40 ° C. at 6 kg / Two types were prepared which were stored for 96 hours under pressure of cm 2 . For these two types of samples, an adhesive strength measurement was performed using a tensile tester (Orientec “Tensilon” universal tester) at a tensile speed of 20 m / min, a peeling angle of 180 °, and a measurement temperature of 23 ° C. .
- a tensile tester Orientec “Tensilon” universal tester
- Adhesive strength (23 ° C.) is 100 g / 25 mm or more and 250 g / mm or less.
- Adhesive strength (23 ° C.) is 80 g / 25 mm or more and less than 100 g / 25 mm, or adhesive strength (23 ° C.) is larger than 250 g / mm and 350 g / 25 mm or less.
- Adhesive force (23 degreeC) is less than 80 g / 25mm or more than 350 g / 25mm.
- Adhesive strength ratio Adhesive strength (40 ° C.) / Adhesive strength (23 ° C.) (a) The closer the adhesive force ratio calculated based on the formula (a) is to 1, the lower the influence of the migration component from the adherend on the adhesive force, so the evaluation was made in the following three stages.
- X Adhesive force ratio is less than 0.8 or 4.0 or more.
- E1 (trade name “H1052”, styrene content 20% by mass, styrene / ethylene butylene / styrene triblock copolymer, manufactured by Asahi Kasei Co., Ltd., MFR 13 g / 10 min (measured at 230 ° C., 2.16 kg))
- E2 (trade name “8903P”, styrene content 35% by mass, styrene / ethylene butylene / styrene triblock copolymer, manufactured by JSR, MFR 10 g / 10 min (measured at 230 ° C., 2.16 kg))
- E3 (trade name “G1657”, styrene content 13% by mass, styrene / ethylene butylene / styrene triblock copolymer, manufactured by Kraton, MFR 10 g / 10 min (measured at 230 ° C., 2.
- Substrate 70% by mass of (B1) and 30% by mass of (B5) were used.
- Resin layer A 70% by mass of (E1), 15% by mass of (X1), and 15% by mass of (Y1) were used.
- Resin layer B 49% by mass of (B2), 44% by mass of (B3), 6% by mass of (R1), and 1% by mass of (B4)
- Each extruder is put into each extruder of a T-die composite film forming machine having three extruders so that the base material is 46.5 ⁇ m, the resin layer A is 10 ⁇ m, and the resin layer B is 3.5 ⁇ m.
- the discharge amount of the film is adjusted, laminated in this order, extruded from a composite T die at an extrusion temperature of 200 ° C., cast on a roll whose surface temperature is controlled at 40 ° C. and wound into a film shape, and wound into a laminated film Got.
- Example 2 A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 70% by mass of (E1), 10% by mass of (X1), and 20% by mass of (Y1) were used.
- Example 3 A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 65% by mass of (E1), 20% by mass of (X1), and 15% by mass of (Y1) were used.
- Example 4 A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 69.5% by mass of (E1), 15% by mass of (X1), 15% by mass of (Y1), and 0.5% by mass of (Z1) were used.
- Example 5 A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 70% by mass of (E1), 20% by mass of (X1), and 10% by mass of (Y1) were used.
- Example 6 A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 70% by mass of (E1), 5% by mass of (X1), and 25% by mass of (Y1) were used.
- Example 7 A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 70% by mass of (E1), 15% by mass of (X2), and 15% by mass of (Y2) were used.
- Example 8 A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 70% by mass of (E1) and 30% by mass of (X3) were used.
- Example 9 A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 70% by mass of (E1), 15% by mass of (X3), and 15% by mass of (Y1) were used.
- (Comparative Example 1) A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 80% by mass of (E2) and 20% by mass of (X2) were used.
- Comparative Example 2 A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 70% by mass of (E1) and 30% by mass of (X1) were used.
- Example 3 A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 70% by mass of (E1) and 30% by mass of (X2) were used.
- Example 4 A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 70% by mass of (E1) and 30% by mass of (Y1) were used.
- Example 5 A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 70% by mass of (E1) and 30% by mass of (Y2) were used.
- Example 6 A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 40% by mass of (E3), 20% by mass of (E4), 30% by mass of (X2), and 10% by mass of (R2) were used.
- Example 7 A laminated film was obtained in the same manner as in Example 1 except that the resin used for the following resin layer A was changed. Thereafter, the obtained laminated film was evaluated by the method described above.
- Resin layer A 100% by mass of (R3) was used.
- the laminated film of the present invention is used as a protective film, since the adhesive force change due to the additive transfer of the member to be adhered is small and the float after cutting is less likely to occur, for example, as a surface protective film for a building member It can be suitably used.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
(a)Tg≧-14℃
(b)G’(-15℃)/G’(0℃)≦5.0
(c)10MPa<G’(-15℃)<100MPa
(d)スチレン系エラストマー
(e)脂肪族系石油樹脂、芳香族系完全水添石油樹脂および脂環式系石油樹脂からなる群より選ばれる少なくとも1つの樹脂
(f)芳香族系石油樹脂、芳香族系部分水添石油樹脂およびテルペン系樹脂からなる群より選ばれる少なくとも1つの樹脂。
(d)スチレン系エラストマー
(e)軟化点110℃以上である芳香族系完全水添石油樹脂、および、軟化点110℃以上である脂環式系石油樹脂からなる群より選ばれる少なくとも1つの樹脂
(f)軟化点110℃以上である芳香族系石油樹脂、および、軟化点110℃以上である芳香族系部分水添石油樹脂からなる群より選ばれる少なくとも1つの樹脂
軟化点110℃以上であるA’群樹脂としては、例えば荒川化学社製“アルコン”Pシリーズ(P115、P125、P140)、東燃ゼネラル社製“T-REZ”Hシリーズ(HA125、HB125)などが例示され、軟化点110℃以上であるB’群樹脂としては、例えば荒川化学社製“アルコン”Mシリーズ(M115、M135)などが例示される。
(1)脂肪族系石油樹脂、芳香族系完全水添石油樹脂および脂環式系石油樹脂からなる群より選ばれる少なくとも1つの樹脂:5~25質量%
(2)芳香族系石油樹脂、芳香族系部分水添石油樹脂およびテルペン系樹脂からなる群より選ばれる少なくとも1つの樹脂:5~25質量%。
積層フィルムから、ステンレス製のヘラを用いて樹脂層Aのみを削り取り、これを厚み1mmに溶融成型したものをサンプルとした。測定はTAインスツルメント社製レオメーターAR2000exを用いて、-50℃から+50℃の温度範囲を、昇温速度10℃/分で昇温しながら、周波数1Hz、ひずみ0.01%で動的剪断変形させながら-15℃、0℃での貯蔵弾性率G’(-15℃)、G’(0℃)を測定する。
積層フィルムから、ステンレス製のヘラを用いて樹脂層Aのみを削り取り、これを180℃まで昇温し溶融させた後、厚み1mmに成型し、15℃/分で-50℃まで冷却したものをサンプルとした。測定はTAインスツルメント社製レオメーターAR2000exを用いて、-50℃から+50℃の温度範囲を、昇温速度10℃/分で昇温しながら、周波数1Hz、ひずみ0.01%で動的剪断変形させながら-50℃以上、50℃以下でのtanδを測定した。得られたtanδにおいて、-50℃以上、50℃以下でtanδが極大値となる温度をTgとした。極大値が2つ以上の場合には高温側の極大値をTgとした。
樹脂層Bの算術平均粗さRaは、(株)小坂研究所製の高精度微細形状測定器(SURFCORDER ET4000A)を用い、JIS B0601-1994に準拠し、積層フィルム、被着体の幅方向に2mm、長手方向に0.2mmの範囲について、走査方向を幅方向とし、長手方向に10μm間隔で21回の測定を実施し3次元解析を行い、評価した。なお、触針先端半径2.0μmのダイヤモンド針を使用、測定力100μN、カットオフ0.8mmで測定した。
積層フィルムから、ステンレス製のヘラを用いて樹脂層Aのみを削り取ったものを用意した。この削り取ったものから、クロロホルムを用いてクロロホルム可溶成分を抽出した。得られたクロロホルム可溶成分をアセトンで抽出することで、クロロホルムとアセトンの両方に可溶である成分を抽出し、樹脂層Aを削り取ったものの質量を100質量%としたときに前記抽出物の質量が占める割合を、クロロホルム及びアセトンに可溶である成分の含有量とした。続いて、前記抽出物を5mg量り取り、示差走査熱量計(セイコーインスツル製EXSTAR DSC6220)を用いて、窒素雰囲気中で以下のプログラムに従い加熱冷却した。
ステップ1:25℃から200℃まで10℃/minで加熱した後、5分間200℃に保つ。
ステップ2:200℃から25℃まで-10℃/minで冷却した後、5分間25℃に保つ。
ステップ3:25℃から150℃まで10℃/minで加熱した後、5分間150℃に保つ。
Tg_sol=(T_1+T_2)/2
(5)軟化点
樹脂の軟化点はJIS K-2207:2006に定められた環球法に基づき測定した。
(6)厚み
ミクロトーム法を用い、積層フィルムの幅方向-積層体厚み方向に断面を有する幅5mmの超薄切片を作製し、該断面に白金コートをして観察試料とした。次に、日立製作所製電界放射走査電子顕微鏡(S-4800)を用いて、積層フィルム断面を加速電圧1.0kVで観察し、観察画像の任意の箇所から基材、樹脂層A、樹脂層Bの厚みおよび積層フィルムの総厚みを計測した。観察倍率に関し、樹脂層A、Bは10,000倍、基材および積層フィルムは1,000倍とした。さらに、同様の計測を合計20回行い、その平均値を基材、樹脂層A、Bそれぞれの厚みおよび積層フィルムの総厚みとして用いた。
温度23℃、相対湿度50%の条件下で24時間、保管・調整した実施例及び比較例の
積層フィルムの樹脂層A側と、添加剤を含む部材としてポリ塩化ビニルが被覆された鋼板のポリ塩化ビニル面をロールプレス機((株)安田精機製作所製特殊圧着ローラ)を用い、貼込圧力2kg/cm2で貼り付けた。なお、ポリ塩化ビニルが被覆された鋼板はポリ塩化ビニル被覆面の算術平均表面粗さRaが2.2μmのものを用意した。
前記(7)で得られた貼り合わせサンプルを23℃の室内にて24時間保管したものと、前記(7)で得られた貼り合わせサンプルを40℃の室内にて6kg/cm2の圧力で加圧した状態で96時間保管したものの2種類を用意した。これら2種のサンプルについて、引張試験機((株)オリエンテック“テンシロン”万能試験機)を用いて、引張速度20m/分、剥離角度180°、測定温度23℃にて粘着力測定を実施した。以下、前記(7)の手順で貼り合わせ、23℃の室内にて24時間保管したサンプルの粘着力を粘着力(23℃)、前記(7)の手順で貼り合わせ、40℃の室内にて6kg/cm2の圧力で加圧した状態で96時間保管したサンプルの粘着力を粘着力(40℃)と記載する。粘着力(23℃)が低いほど貼合後の裁断加工時に浮きが生じやすく、粘着力(23℃)が高いほど剥離がしにくくなることを示しており、裁断時の浮きと剥離性の観点から以下の3段階で評価した。
◎:粘着力(23℃)が100g/25mm以上、かつ250g/mm以下である。
〇:粘着力(23℃)が80g/25mm以上、かつ100g/25mm未満、または粘着力(23℃)が250g/mmより大きく、かつ350g/25mm以下である。
×:粘着力(23℃)が80g/25mm未満、または350g/25mmより大きい。
粘着力比=粘着力(40℃)/粘着力(23℃) ・・・ (a)
前記(a)式に基づいて算出した粘着力比が1に近いほど被着体からの移行成分による粘着力への影響が小さい積層フィルムであることから、以下の3段階で評価した。
◎:粘着力比が0.8以上、かつ3.5未満。
〇:粘着力比が3.5以上、かつ4.0未満。
×:粘着力比が0.8未満、または4.0以上。
・(E1)(商品名「H1052」、スチレン含量20質量%、スチレン・エチレンブチレン・スチレントリブロック共重合体、旭化成社製、MFR 13g/10分(230℃、2.16kgで測定))
・(E2)(商品名「8903P」、スチレン含量35質量%、スチレン・エチレンブチレン・スチレントリブロック共重合体、JSR社製、MFR 10g/10分(230℃、2.16kgで測定))
・(E3)(商品名「G1657」、スチレン含量13質量%、スチレン・エチレンブチレン・スチレントリブロック共重合体、Kraton社製、MFR 10g/10分(230℃、2.16kgで測定))
・(E4)(商品名「062T」、スチレン含量23質量%、スチレン・イソブチレン・スチレントリブロック共重合体、カネカ社製、MFR 10g/10分(230℃、2.16kgで測定))
・(X1)(商品名「アルコンP140」、芳香族系完全水添石油樹脂、荒川化学工業社製、軟化点140℃、水添率>90%)
・(X2)(商品名「アルコンP100」、芳香族系完全水添石油樹脂、荒川化学工業社製、軟化点100℃、水添率>90%)
・(X3)(商品名「アルコンP125」、芳香族系完全水添石油樹脂、荒川化学工業社製、軟化点100℃、水添率>90%)
・(Y1)(商品名「アルコンM135」、芳香族系部分水添石油樹脂、荒川化学工業社製、軟化点135℃、水添率<90%)
・(Y2)(商品名「アルコンM100」、芳香族系部分水添石油樹脂、荒川化学工業社製、軟化点100℃、水添率<90%)
・(B1)(商品名「CE3059」、低密度ポリエチレン、住友化学社製、MFR 5.8g/10分(190℃、2.16kgで測定))
・(B2)(住友化学社製、エチレン・プロピレン・ジエンターポリマー、MFR 7.3g/分(230℃、2.16kgで測定))
・(B3)(市販のブロックポリプロピレン、MFR 8.5g/分(230℃、2.16kgで測定))
・(B4)(市販のポリエチレン粒子、平均粒径10μm)
・(B5)(住友化学社製、ブロックポリプロピレン、MFR 5.8g/分(230℃、2.16kgで測定))
<改質剤>
・(R1)(市販のシリコーン系表面改質剤)。
・(R2)(商品名「EP1013」、α-オレフィン共重合体、三井化学社製、MFR 10g/10分(230℃、2.16kgで測定))
・(R3)(商品名「XM-7080」、α-オレフィン共重合体、三井化学社製、MFR 7.0g/10分(230℃、2.16kgで測定))
<添加剤>
・(Z1)(市販の紫外線吸収剤)
(実施例1)
各層の構成樹脂を次のように準備した。
次に、各層の構成樹脂を、3台の押出機を有するTダイ複合製膜機のそれぞれの押出機に投入し、基材が46.5μm、樹脂層Aが10μm、樹脂層Bが3.5μmになるように各押出機の吐出量を調整し、この順で積層して複合Tダイから押出温度200℃にて押出し、表面温度を40℃に制御したロール上にキャストしフィルム状に成型したものを巻き取り、積層フィルムを得た。
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
(比較例1)
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
下記樹脂層Aに用いる樹脂を変更した以外は実施例1と同様にして積層フィルムを得た。その後、得られた積層フィルムについて前記した方法により評価を行った。
Claims (10)
- 基材の一方の面に樹脂層Aを有する積層フィルムであって、前記樹脂層Aのガラス転移温度(Tg)と、前記樹脂層Aの周波数1Hz、ひずみ0.01%で測定された-15℃での貯蔵弾性率(以下、G’(-15℃)と示す)と、周波数1Hz、ひずみ0.01%で測定された0℃での貯蔵弾性率(以下、G’(0℃)と示す)とが、下記(a)、(b)、(c)の関係を全て満たす、積層フィルム。
(a)Tg≧-14℃
(b)G’(-15℃)/G’(0℃)≦5.0
(c)10MPa<G’(-15℃)<100MPa - 前記基材の、前記樹脂層Aを有さない方の面に樹脂層Bを有する、請求項1に記載の積層フィルム。
- 前記樹脂層Bの、算術平均表面粗さRaが0.20μm以上である、請求項2に記載の積層フィルム。
- 前記樹脂層Aが、下記(d)、(e)、(f)のすべてを含む、請求項1~3のいずれかに記載の積層フィルム。
(d)スチレン系エラストマー
(e)脂肪族系石油樹脂、芳香族系完全水添石油樹脂および脂環式系石油樹脂からなる群より選ばれる少なくとも1つの樹脂
(f)芳香族系石油樹脂、芳香族系部分水添石油樹脂およびテルペン系樹脂からなる群より選ばれる少なくとも1つの樹脂 - 樹脂層A全体を100質量%としたとき、前記樹脂層Aが下記(1)及び(2)を含む、請求項1~4のいずれかに記載の積層フィルム。
(1)脂肪族系石油樹脂、芳香族系完全水添石油樹脂および脂環式系石油樹脂からなる群より選ばれる少なくとも1つの樹脂:5~25質量%
(2)芳香族系石油樹脂、芳香族系部分水添石油樹脂およびテルペン系樹脂からなる群より選ばれる少なくとも1つの樹脂:5~25質量% - 樹脂層A全体を100質量%としたとき、前記樹脂層Aが、下記(3)を含む、請求項1~5のいずれかに記載の積層フィルム。
(3)スチレン系エラストマー:50~90質量% - 前記樹脂層Aが、クロロホルム及びアセトンに可溶であり、かつ、ガラス転移温度(Tg_sol)が50℃以上である成分を含む、請求項1~6のいずれかに記載の積層フィルム。
- 前記樹脂層Aが、樹脂層A全体を100質量%としたとき、クロロホルムに可溶であり、かつ、アセトンに可溶であり、かつ、ガラス転移温度(Tg_sol)が50℃以上である成分を10~50質量%含む、請求項1~7のいずれかに記載の積層フィルム。
- 前記樹脂層Aが、下記(d)、(e)、(f)のすべてを含む、請求項1~8のいずれかに記載の積層フィルム。
(d)スチレン系エラストマー
(e)軟化点110℃以上である芳香族系完全水添石油樹脂、および、軟化点110℃以上である脂環式系石油樹脂からなる群より選ばれる少なくとも1つの樹脂
(f)軟化点110℃以上である芳香族系石油樹脂、および、軟化点110℃以上である芳香族系部分水添石油樹脂からなる群より選ばれる少なくとも1つの樹脂 - 化粧鋼板表面の保護に用いられることを特徴とする、請求項1~9のいずれかに記載の積層フィルム。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019520466A JP7188672B2 (ja) | 2018-04-16 | 2019-04-04 | 積層フィルム |
| KR1020207020830A KR102607556B1 (ko) | 2018-04-16 | 2019-04-04 | 적층 필름 |
| CN201980012339.4A CN111699091B (zh) | 2018-04-16 | 2019-04-04 | 层叠膜 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018078128 | 2018-04-16 | ||
| JP2018-078128 | 2018-04-16 | ||
| JP2019-029185 | 2019-02-21 | ||
| JP2019029185 | 2019-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019203003A1 true WO2019203003A1 (ja) | 2019-10-24 |
Family
ID=68239618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2019/014932 Ceased WO2019203003A1 (ja) | 2018-04-16 | 2019-04-04 | 積層フィルム |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP7188672B2 (ja) |
| KR (1) | KR102607556B1 (ja) |
| CN (1) | CN111699091B (ja) |
| TW (1) | TWI851570B (ja) |
| WO (1) | WO2019203003A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021070745A (ja) * | 2019-10-30 | 2021-05-06 | 株式会社イノアック技術研究所 | ホットメルト粘着剤組成物 |
| JP2021192094A (ja) * | 2020-06-02 | 2021-12-16 | 住友化学株式会社 | 硬化性組成物および偏光板 |
| JP2022150306A (ja) * | 2021-03-26 | 2022-10-07 | 東レ株式会社 | 積層フィルム |
| EP4506689A1 (en) * | 2023-08-03 | 2025-02-12 | Toyo Tire Corporation | Method for quantifying component in rubber composition |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04226183A (ja) * | 1990-06-08 | 1992-08-14 | Sekisui Chem Co Ltd | 粘着テープもしくはシート及びその表面加工方法 |
| JP2007277477A (ja) * | 2006-04-11 | 2007-10-25 | Sekisui Chem Co Ltd | 塗膜保護フィルム |
| WO2012073979A1 (ja) * | 2010-12-01 | 2012-06-07 | 東洋紡績株式会社 | 粘着性樹脂組成物及び粘着フィルム |
| JP2016186044A (ja) * | 2015-03-27 | 2016-10-27 | 積水化学工業株式会社 | 粘着剤組成物、表面保護フィルム、及び、表面保護フィルム付きプリズムシート |
| JP2018001620A (ja) * | 2016-07-04 | 2018-01-11 | 東レ株式会社 | 積層フィルム |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101389150B1 (ko) * | 2006-11-07 | 2014-04-24 | 도요보 가부시키가이샤 | 점착 필름 |
| JP2010006925A (ja) | 2008-06-26 | 2010-01-14 | Sekisui Chem Co Ltd | 表面保護フィルム |
| CN103889715B (zh) * | 2011-10-31 | 2015-09-02 | 东洋纺株式会社 | 聚烯烃系膜 |
| CN103254812A (zh) * | 2012-02-15 | 2013-08-21 | 日东电工株式会社 | 表面保护片 |
-
2019
- 2019-04-04 CN CN201980012339.4A patent/CN111699091B/zh active Active
- 2019-04-04 WO PCT/JP2019/014932 patent/WO2019203003A1/ja not_active Ceased
- 2019-04-04 JP JP2019520466A patent/JP7188672B2/ja active Active
- 2019-04-04 KR KR1020207020830A patent/KR102607556B1/ko active Active
- 2019-04-12 TW TW108112829A patent/TWI851570B/zh active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04226183A (ja) * | 1990-06-08 | 1992-08-14 | Sekisui Chem Co Ltd | 粘着テープもしくはシート及びその表面加工方法 |
| JP2007277477A (ja) * | 2006-04-11 | 2007-10-25 | Sekisui Chem Co Ltd | 塗膜保護フィルム |
| WO2012073979A1 (ja) * | 2010-12-01 | 2012-06-07 | 東洋紡績株式会社 | 粘着性樹脂組成物及び粘着フィルム |
| JP2016186044A (ja) * | 2015-03-27 | 2016-10-27 | 積水化学工業株式会社 | 粘着剤組成物、表面保護フィルム、及び、表面保護フィルム付きプリズムシート |
| JP2018001620A (ja) * | 2016-07-04 | 2018-01-11 | 東レ株式会社 | 積層フィルム |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021070745A (ja) * | 2019-10-30 | 2021-05-06 | 株式会社イノアック技術研究所 | ホットメルト粘着剤組成物 |
| JP2021192094A (ja) * | 2020-06-02 | 2021-12-16 | 住友化学株式会社 | 硬化性組成物および偏光板 |
| JP7770787B2 (ja) | 2020-06-02 | 2025-11-17 | 湖北利友光電科技有限公司 | 硬化性組成物および偏光板 |
| JP2022150306A (ja) * | 2021-03-26 | 2022-10-07 | 東レ株式会社 | 積層フィルム |
| JP7687018B2 (ja) | 2021-03-26 | 2025-06-03 | 東レ株式会社 | 積層フィルム |
| EP4506689A1 (en) * | 2023-08-03 | 2025-02-12 | Toyo Tire Corporation | Method for quantifying component in rubber composition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111699091A (zh) | 2020-09-22 |
| JPWO2019203003A1 (ja) | 2021-03-11 |
| JP7188672B2 (ja) | 2022-12-13 |
| TW201943564A (zh) | 2019-11-16 |
| CN111699091B (zh) | 2022-06-28 |
| KR20200143358A (ko) | 2020-12-23 |
| TWI851570B (zh) | 2024-08-11 |
| KR102607556B1 (ko) | 2023-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102509299B1 (ko) | 적층 필름 | |
| JP7188672B2 (ja) | 積層フィルム | |
| TWI720949B (zh) | 積層體 | |
| JP6628101B2 (ja) | 積層フィルム | |
| JP7287863B2 (ja) | 積層フィルム | |
| JP2017132995A (ja) | 積層体 | |
| JP2017066395A (ja) | 積層体 | |
| KR102765480B1 (ko) | 적층 필름 | |
| KR20120112846A (ko) | 표면 보호 필름 | |
| JP2018119138A (ja) | 積層フィルム | |
| JP2013181073A (ja) | 表面保護フィルム | |
| JP2018001620A (ja) | 積層フィルム | |
| TW202243908A (zh) | 積層薄膜及薄膜卷 | |
| JP6515917B2 (ja) | 自己粘着性表面保護フィルム | |
| JP6966025B1 (ja) | 積層フィルム及びフィルムロール | |
| TW201619326A (zh) | 組成物及積層體 | |
| WO2024116704A1 (ja) | 表面保護フィルムおよびその製造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ENP | Entry into the national phase |
Ref document number: 2019520466 Country of ref document: JP Kind code of ref document: A |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19788821 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 20207020830 Country of ref document: KR Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 19788821 Country of ref document: EP Kind code of ref document: A1 |

