EP4486563A1 - Peba pour adhérence directe sur tpu comprenant des billes de verre creuses - Google Patents
Peba pour adhérence directe sur tpu comprenant des billes de verre creusesInfo
- Publication number
- EP4486563A1 EP4486563A1 EP23711515.9A EP23711515A EP4486563A1 EP 4486563 A1 EP4486563 A1 EP 4486563A1 EP 23711515 A EP23711515 A EP 23711515A EP 4486563 A1 EP4486563 A1 EP 4486563A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- glass beads
- hollow glass
- polymeric material
- blocks
- weight
- 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.)
- Pending
Links
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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
- B32B27/205—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents the fillers creating voids or cavities, e.g. by stretching
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
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- B32B27/00—Layered products comprising a layer of synthetic resin
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B2037/0092—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding in which absence of adhesives is explicitly presented as an advantage
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- B32B2250/24—All layers being polymeric
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- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/101—Glass
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- B32B2264/20—Particles characterised by shape
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- B32B2307/31—Heat sealable
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- B32B2307/582—Tearability
- B32B2307/5825—Tear resistant
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- B32B2437/00—Clothing
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- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2535/00—Medical equipment, e.g. bandage, prostheses or catheter
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Definitions
- PEBA for direct adhesion to TPU including hollow glass beads
- the present invention relates to an article comprising a first polymer material comprising at least one copolymer with polyamide PA blocks and polyether PE blocks (PEBA) and a second polymer material comprising at least one thermoplastic polyurethane (TPU), the first polymer material adhering directly to the second polymeric material, and the second polymeric material comprising hollow glass beads.
- PEBA polyamide PA blocks and polyether PE blocks
- TPU thermoplastic polyurethane
- the present invention also relates to the assembly by a method of direct adhesion of the first polymer material to the second polymer material comprising hollow glass beads.
- thermoplastic elastomeric polymers such as PEBA and TPU copolymers, or copolyether block esters (CoPE) are known for their use in the manufacture of automotive parts, sports equipment, in particular sports shoes. sports, electrical and electronic equipment parts, medical equipment parts, etc.
- the assembly of these materials of similar or different chemical natures and mechanical properties is sometimes required for these applications.
- the assembly can be carried out by molding or extrusion, possible cutting of the components, then gluing and pressing of these components, or even by a process of direct adhesion of these TPEs.
- direct adhesion process is meant an adhesion process without the addition of binder, in particular without the addition of glue or adhesive, the glue or adhesive possibly proving to be polluting and therefore more difficult to recycle.
- direct bonding processes are more economical and non-polluting.
- overmoulding, hot pressing, co-extrusion, thermoforming, co-injection, and any other possible adhesion method using one or more of the conventional methods such as injection molding, extrusion molding and/or blow molding.
- the overmolding technique consists of injecting material onto an insert placed at the bottom of the mould. The adhesion of the two materials is obtained by the adhesive properties in the molten state and the compatibility of the overmolded material and the insert.
- these TPE-based materials may include additives and reinforcements, such as fibers, glass beads, for electronic, sports, automotive or industrial applications to improve mechanical properties.
- additives and reinforcements such as fibers, glass beads, for electronic, sports, automotive or industrial applications to improve mechanical properties.
- hollow glass beads has been considered in the past, making it possible to provide lightness on the final article to consume less energy or to reduce as much as possible the energy expended during their use.
- the invention relates firstly to an article comprising a first polymeric material comprising at least one copolymer with polyamide blocks and polyether blocks (PEBA) and a second polymeric material comprising at least one thermoplastic polyurethane (TPU), the first polymeric material adhering directly to the second polymeric material, and the second polymeric material comprising hollow glass beads.
- PEBA polyamide blocks and polyether blocks
- TPU thermoplastic polyurethane
- the adhesion between two polymer materials is greater than or equal to 10 kgf/cm, preferably greater than or equal to 12 kgf/cm.
- the hollow glass beads have a content of 3 to 25% by weight relative to the total weight of the second polymer material.
- the hollow glass balls comprise zinc oxide at a content greater than or equal to 1.0% by weight with respect to to the total weight of the hollow glass beads, and preferably greater than or equal to 2.0% by weight relative to the total weight of the hollow glass beads.
- the present invention makes it possible to meet the need expressed above: in addition to good direct adhesion between the distinct TPE materials, it also provides articles having a desired low density.
- the present invention also proposes a method of direct adhesion of a first polymer material comprising at least one PEBA on a second polymer material comprising at least one TPU and hollow glass beads, the method being characterized in that the assembly s carried out by a process comprising heating the first polymeric material, and this material molten or softened under heating is brought into contact with at least a part of the second polymeric material to cause the two materials to adhere.
- the presence of the hollow glass beads makes it possible to provide articles having a decreased density without influencing the adhesion between the first and the second polymeric material. More specifically, despite the presence of hollow glass beads close to the interface of the two polymer materials, the adhesion between these two materials is maintained or even improved.
- the term “maintained adhesion” or “similar adhesion” means a ratio between the adhesion of the materials in the presence of the hollow glass beads and the adhesion of the same materials without the hollow glass beads being higher at 75%.
- the invention also relates to the use of an article as defined above for the manufacture of sports equipment, an element of footwear, personal protective equipment, automobile parts, construction parts, parts of optical equipment, parts of electrical and electronic equipment (e.g. AR/VR headsets, smartphone parts, computer hardware), parts of medical equipment such as catheters, transmission or transport belts.
- an article as defined above for the manufacture of sports equipment an element of footwear, personal protective equipment, automobile parts, construction parts, parts of optical equipment, parts of electrical and electronic equipment (e.g. AR/VR headsets, smartphone parts, computer hardware), parts of medical equipment such as catheters, transmission or transport belts.
- the invention first relates to an article comprising a first polymeric material and a second polymeric material, the first polymeric material adhering directly to the second polymeric material.
- directly adhering or “direct adhesion” is meant adhesion without the addition of binder, in particular without the addition of glue or adhesive.
- this article is obtained by the direct adhesion process described below.
- the first polymer material according to the invention comprises at least one copolymer with PA polyamide blocks and PE polyether blocks (PEBA).
- PEBA PE polyether blocks
- PEBA copolymers result from the polycondensation of polyamide blocks with reactive ends with polyether blocks with reactive ends, such as:
- polyetheramine polyamide blocks with dicarboxylic chain ends with polyoxyalkylene blocks with diamine chain ends
- polyamide blocks with diamine chain ends come, for example, from the condensation of polyamide precursors in the presence of a chain-limiting diamine.
- Polyamide blocks with dicarboxylic chain ends come, for example, from the condensation of polyamide precursors in the presence of a chain-limiting dicarboxylic acid.
- Three types of polyamide blocks can advantageously be used.
- the polyamide blocks come from the condensation of a dicarboxylic acid, in particular those having 4 to 36 carbon atoms, preferably those having 6 to 18 carbon atoms and a aliphatic or aromatic diamine, in particular those having 2 to 20 carbon atoms, preferably those having 4 to 14 carbon atoms.
- dicarboxylic acids mention may be made of 1,4-cyclohexyldicarboxylic acid, butanedioic, adipic, azelaic, suberic, sebacic, dodecanedicarboxylic, octadecanedicarboxylic acids and terephthalic and isophthalic acids, but also dimerized fatty acids .
- dimerized fatty acids preferably have a dimer content of at least 98%; preferably they are hydrogenated; these are, for example, products marketed under the "PRIPOL” brand by the "CRODA” company, or under the EMPOL brand by the BASF company, or under the Radiacid brand by the OLEON company, and polyoxyalkylene a,oo-diacids .
- diamines examples include tetramethylene diamine, hexamethylenediamine, 1,10-decamethylenediamine, dodecamethylenediamine, trimethylhexamethylenediamine, isomers of bis-(4-aminocyclohexyl)-methane (BACM), bis -(3-methyl-4-aminocyclohexyl)methane (BMACM), and 2-2-bis-(3-methyl-4-aminocyclohexyl)-propane (BMACP), and para-amino-di-cyclo-hexyl-methane ( PACM), and isophoronediamine (IPDA), 2,6-bis-(aminomethyl)-norbornane (BAMN) and piperazine (Pip).
- BCM bis-(4-aminocyclohexyl)-methane
- BMACM bis -(3-methyl-4-aminocyclohexyl)methane
- PA XY X represents the number of carbon atoms from the diamine residues
- Y represents the number of carbon atoms from the diacid residues, in a conventional manner.
- the polyamide blocks result from the condensation of one or more alpha, omega-aminocarboxylic acids and/or one or more lactams having 6 to 12 carbon atoms in the presence of a dicarboxylic acid having 4 with 36 carbon atoms or a diamine.
- lactams include caprolactam, oenantholactam and lauryllactam.
- alpha, omega-amino carboxylic acid include aminocaproic, amino-7-heptanoic, amino-11-undecanoic and amino-12-dodecanoic.
- polyamide blocks of the second type are made of PA 11, PA 12 or PA 6.
- the polyamide blocks result from the condensation of at least one alpha, omega-aminocarboxylic acid (or a lactam), in at least one diamine and at least one dicarboxylic acid.
- PA X represents the number of carbon atoms from amino acid residues.
- polyamide PA blocks are prepared by polycondensation:
- - comonomer(s) ⁇ Z ⁇ chosen from lactams and alpha, omega-aminocarboxylic acids having Z carbon atoms and equimolar mixtures of at least one diamine having X1 carbon atoms and at least one dicarboxylic acid having Y1 carbon atoms, (X1, Y1) being different from (X, Y);
- said ⁇ Z ⁇ comonomer(s) being introduced in a proportion by weight ranging up to 50%, preferably up to 20%, even more advantageously up to 10% relative to all of the polyamide precursor monomers;
- the dicarboxylic acid having Y carbon atoms is used as chain limiter, which is introduced in excess relative to the stoichiometry of the diamine(s).
- the polyamide blocks result from the condensation of at least two alpha, omega-aminocarboxylic acids or of at least two lactams having from 6 to 12 carbon atoms or of a lactam and an acid aminocarboxylic acid not having the same number of carbon atoms in the optional presence of a chain limiter.
- Alpha, omega-amino carboxylic acids, lactams, diamines, and dicarboxylic acids can be the above types.
- polyamide blocks of the third type By way of examples of polyamide blocks of the third type, mention may be made of the following: 66/6, 66/610/11/12.
- the polymer comprises from 1 to 80% by mass of polyether blocks and from 20 to 99% by mass of polyamide blocks, preferably from 4 to 80% by mass of polyether blocks and 20 to 96% by mass of polyamide blocks .
- the polyether blocks consist of alkylene oxide units.
- the blocks can in particular be derived from PEG (polyethylene glycol) blocks, i.e. those made up of ethylene oxide units, PPG (propylene glycol) blocks, i.e. those made up of propylene oxide units, PO3G blocks (polytrimethylene glycol), ie those consisting of polytrimethylene glycol ether units, and/or PTMG (polytetramethylene glycol) blocks, ie those consisting of tetramethylene glycol units also called polytetrahydrofuran.
- the PEBA copolymers can comprise in their chain several types of polyethers, the copolyethers possibly being block or random.
- the polyether blocks can also consist of ethoxylated primary amines.
- ethoxylated primary amines By way of example of ethoxylated primary amines, mention may be made of the products of formula: in which m and n are between 1 and 20 and x between 8 and 18. These products are commercially available under the Noramox® brand from Arkema and under the Genamin® brand from Clariant.
- the polyether blocks can include polyoxyalkylene blocks with OH diol chain ends (called polyether diols).
- the polyether blocks can comprise polyoxyalkylene blocks with ends of NH2 diamine chains, such blocks being able to be obtained by cyanoacetylation of polyoxyalkylene alpha-omega dihydroxylated aliphatic blocks. More particularly, it will be possible to use the commercial products Jeffamines or Elastamine (for example Jeffamine® D400, D2000, ED 2003, XTJ 542, commercial products from the company Huntsman).
- Jeffamines or Elastamine for example Jeffamine® D400, D2000, ED 2003, XTJ 542, commercial products from the company Huntsman).
- the polyether blocks in the copolymer are polyetherdiols.
- the general method for the two-step preparation of PEBA copolymers having ester bonds between the PA blocks and the PE blocks is known and is described, for example, in French patent FR2846332.
- the general method for preparing the PEBA copolymers of the invention having amide bonds between the PA blocks and the PE blocks is known and described, for example in European patent EP1482011.
- the polyether blocks can also be mixed with polyamide precursors and a diacid chain to make polymers with polyamide blocks and polyether blocks with randomly distributed units (one-step process).
- PEBA in the present description of the invention relates both to Pebax® marketed by Arkema, to Vestamid® marketed by Evonik®, to Grilamid® marketed by EMS, to Kellaflex® marketed by DSM or to any other PEBA from other vendors.
- the PA blocks of the PEBA copolymer can be chosen from PA 6, 11, 12, 612, 66/6, 1010, 614, and/or their copolymer, preferably PA 11, 12 and/or their copolymer; and/or the PE blocks of the PEBA copolymer are PTMG blocks.
- said PEBA used in the composition according to the invention is obtained at least partially from bio-resourced raw materials.
- raw materials of renewable origin or bioresourced raw materials we mean materials which comprise bioresourced carbon or carbon of renewable origin.
- materials composed of renewable raw materials contain 14 C.
- the "carbon content of renewable origin” or “bio-resourced carbon content” is determined in application of the standards ASTM D 6866 (ASTM D 6866-06) and ASTM D 7026 (ASTM D 7026-04).
- PEBAs based on polyamide 11 come at least in part from bio-resourced raw materials and have a bio-resourced carbon content of at least 1%, which corresponds to an isotopic ratio of 12 C / 14 C of at least 1.2 x 10' 14 .
- the PEBAs according to the invention comprise at least 50% by mass of bio-resourced carbon on the total mass of carbon, which corresponds to a 12 C/ 14 C isotopic ratio of at least 0.6 ⁇ 10′ 12 .
- This content is advantageously higher, in particular up to 100%, which corresponds to a 12 C/ 14 C isotopic ratio of 1.2 x 10 -12 , in the case for example of PEBA with PA 11 blocks and PE blocks comprising PO3G, PTMG and/or PPG from raw materials of renewable origin.
- the first polymeric material may comprise a PEBA content of 70 to 97%, and preferably 80 to 96% by weight relative to the weight of the first polymeric material.
- this content can be from 70 to 75%, or from 75 to 80%; or 80 to 85%; or 85 to 90%; or 90 to 95%; or from 95 to 97% by weight based on the weight of the first polymeric material.
- the first polymer material consists of PEBA.
- the PEBA copolymer has an instantaneous Shore D hardness greater than or equal to 30, preferably greater than or equal to 35 and less than or equal to 80 Shore D, preferably less than or equal to 75 Shore D.
- Instantaneous hardness measurements can be performed according to ISO 868:2003.
- the first polymeric material may include one or more additional polymers.
- This (these) additional polymer(s) can be chosen from polyamides, these polyamides preferably being like those described for the types of polyamide blocks above.
- the first polymeric material is devoid of the hollow glass beads.
- the first polymeric material comprises hollow glass beads.
- the first polymer material may comprise a content of hollow glass beads of 3 to 25%, and preferably of 4 to 20% by weight relative to the weight of the first polymer material.
- this content can be from 3 to 5%, or from 5 to 10%; or 10 to 15%; or 15 to 20%; or 20 to 25% by weight based on the weight of the first polymeric material.
- a hollow glass marble is a glass material that has a hollow (as opposed to solid) structure.
- the hollow glass beads may have a compressive strength, measured according to ASTM D 3102-72 (1982) in glycerol, of at least 50 MPa and particularly preferably of at least 100 MPa.
- Hollow glass beads typically have an aspect ratio (L/D ratio where L represents the largest dimension of the cross section of the bead and D the smallest dimension of the cross section of said ball) comprised from 0.85 to 1, in particular from 0.90 to 1, preferably equal to 1.
- L and D can be measured by scanning electron microscopy (SEM).
- Hollow glass beads are typically spherical or substantially spherical.
- the hollow glass beads may have an average volumetric diameter D50 of 10 to 80 ⁇ , preferably from 13 to 50 ⁇ , measured by means of laser diffraction in accordance with standard ASTM B 822-17.
- the hollow glass beads can be surface-treated with, for example, silanes (in particular aminosilanes and epoxysilanes), polyamides, in particular water-soluble polyamides, fatty acids, waxes, titanates, urethanes, polyhydroxyethers, epoxies, nickel or mixtures thereof.
- silanes in particular aminosilanes and epoxysilanes
- polyamides in particular water-soluble polyamides
- fatty acids waxes, titanates, urethanes, polyhydroxyethers, epoxies, nickel or mixtures thereof.
- the hollow glass beads are preferably surface treated with aminosilanes, epoxysilanes, polyamides or mixtures thereof.
- the hollow glass beads can be formed from borosilicate glass, preferably from sodium carbonate-calcium oxide-borosilicate glass.
- the hollow glass beads may preferably have an actual density of 0.10 to 0.80 g/cm 3 , preferably 0.30 to 0.77 g/cm 3 , particularly preferably 0.40 to 0.67 g/cm 3 , measured according to standard ASTM D 2840-69 (1976) with a gas pycnometer and helium as measuring gas.
- the hollow glass beads may comprise zinc oxide at a content greater than or equal to 1.0% by weight relative to the total weight of the hollow glass beads, and preferably greater than or equal to at 2.0% by weight based on the total weight of the hollow glass beads.
- the hollow glass beads suitable for the invention may be Glass Bubbles® beads sold by 3M, Winlight® sold by AXYZ Chemical Co., Ltd, Sphericel® sold by Potters and SiLiBeads® sold by Sigmund-Linder.
- the first polymeric material may also include one or more additives.
- the first polymeric material may comprise an additive content of 0 to 5%, and preferably 0.1 to 4% by weight relative to the weight of the first polymer material.
- this content can be from 0 to 0.5%, or from 0.5 to 1%; or from 1 to 1.5%; or from 1.5 to 2%; or 2 to 2.5%; or 2.5 to 3%; or 3 to 3.5%; or 3.5 to 4%; or 4 to 4.5%; or 4.5 to 5%; by weight relative to the weight of the first polymeric material.
- the additive can be chosen from fillers, colorants, stabilizers, plasticizers, surfactants, nucleating agents, pigments, brighteners, antioxidants, lubricants, flame retardants, natural waxes, impact modifiers, additives for laser marking, and mixtures thereof.
- the stabilizer can be a UV stabilizer, an organic stabilizer or more generally a combination of organic stabilizers, such as a phenol-type antioxidant (for example of the type of Irganox 245 or 1098 or 1010 from the company Ciba-BASF), a phosphite-type antioxidant (for example Irgafos® 126 from the company Ciba-BASF) and possibly even other stabilizers such as a HALS, which means Hindered Amine Light Stabilizer or light stabilizer from hindered amine type (for example Tinuvin 770 from the company Ciba-BASF), an anti-UV (for example Tinuvin 312 from the company Ciba), a stabilizer based on phosphorus. It is also possible to use antioxidants of the amine type such as Naugard 445 from the company Crompton or alternatively polyfunctional stabilizers such as Nylostab S-EED from the company Clariant.
- a phenol-type antioxidant for example of the type of Irganox
- This stabilizer can also be an inorganic stabilizer, such as a copper-based stabilizer.
- a copper-based stabilizer By way of example of such mineral stabilizers, mention may be made of copper halides and acetates. Incidentally, one can possibly consider other metals such as silver, but these are known to be less effective. These copper-based compounds are typically associated with alkali metal halides, particularly potassium.
- the plasticizers are chosen from benzene sulfonamide derivatives, such as n-butyl benzene sulfonamide (BBSA); ethyl toluene sulfonamide or N-cyclohexyl toluene sulfonamide; hydroxybenzoic acid esters, such as ethyl-2-hexyl parahydroxybenzoate and decyl-2-hexyl parahydroxybenzoate; tetrahydrofurfuryl alcohol esters or ethers, such as oligoethyleneoxytetrahydrofurfuryl alcohol; and esters of citric acid or hydroxy-malonic acid, such as oligoethyleneoxy malonate.
- BBSA n-butyl benzene sulfonamide
- ethyl toluene sulfonamide or N-cyclohexyl toluene sulfonamide hydroxybenzoic acid esters, such
- the fillers can be chosen from silica, graphite, expanded graphite, carbon black, kaolin, magnesia, slag, talc, wollastonite, mica, nanofillers (nanotubes of carbon), the pigments, metal oxides (titanium oxide), metals, advantageously wollastonite and talc, preferentially talc.
- the impact modifiers are polyolefins having a modulus ⁇ 200 MPa, in particular ⁇ 100 MPa, as measured according to standard ISO 178:2010, at 23°C.
- the impact modifier is chosen from a polyolefin having a modulus ⁇ 200 MPa, in particular ⁇ 100 MPa, functionalized or not, and mixtures thereof.
- the functionalized polyolefin carries a function chosen from maleic anhydride, carboxylic acid, carboxylic anhydride and epoxide functions, and is in particular chosen from ethylene/octene copolymers, ethylene/butene copolymers, ethylene/propylene elastomers (EPR), ethylene-propylene-diene copolymers with an elastomeric character (EPDM) and ethylene/alkyl (meth)acrylate copolymers.
- EPR ethylene/propylene elastomers
- EPDM ethylene-propylene-diene copolymers with an elastomeric character
- EPDM ethylene/alkyl (meth)acrylate copolymers.
- additives for laser marking are: Iriotec® 8835 / Iriotec® 8850 from MERCK and Laser Mark® 1001074-E / Laser Mark® 1001088-E from Ampacet Corporation.
- the first polymer material may be in the form of a layer in the article according to the invention.
- the second polymer material according to the invention comprises at least one thermoplastic polyurethane (TPU).
- TPU thermoplastic polyurethane
- the thermoplastic polyurethane can be chosen from a copolyether block urethane and a copolyester block urethane.
- thermoplastic polyurethane is a copolymer with rigid blocks and with flexible blocks.
- TPUs result from the reaction of at least one polyisocyanate with at least one isocyanate-reactive compound, preferably having two isocyanate-reactive functional groups, more preferably a polyol, and optionally with a chain extender, optionally in presence of a catalyst.
- the rigid blocks of TPU are blocks made up of units derived from polyisocyanates and chain extenders while the flexible blocks mainly comprise units derived from compounds reactive with isocyanate, having a molar mass between 0.5 and 100 kg /mol, preferably polyols.
- the polyisocyanate can be aliphatic, cycloaliphatic, araliphatic and/or aromatic.
- the polyisocyanate is a diisocyanate.
- the polyisocyanate is chosen from the group consisting of tri-, tetra-, penta-, hexa-, hepta- and/or octamethylene diisocyanate, 2-methyl-pentamethylene 1,5-diisocyanate, 2-ethyl- butylene-1,4-diisocyanate, 1,5-pentamethylene diisocyanate, 1,4-butylene-diisocyanate, 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethyl-cyclohexane (isophorone diisocyanate, IPDI), 1,4-bis(isocyanatomethyl)cyclohexane, 1,3-bis(isocyanatomethyl)cyclohexane (HXDI), 2,4-paraphenylene diisocyanate (PPDI), 2,4-tetramethylene xylene diisocyanate (TMXDI), 4 ,4'-, 2,4'-,
- the polyisocyanate is selected from the group consisting of diphenylmethane diisocyanates (MDI), toluene diisocyanates (TDI), pentamethylene diisocyanate (PDI), hexamethylene diisocyanate (HDI), methylene bis (4-cyclohexyl isocyanate) (HMDI) and mixtures thereof.
- MDI diphenylmethane diisocyanates
- TDI toluene diisocyanates
- PDI pentamethylene diisocyanate
- HDI hexamethylene diisocyanate
- HMDI methylene bis (4-cyclohexyl isocyanate
- the polyisocyanate is 4,4'-MDI (4,4'-diphenylmethane diisocyanate), 1,6-HDI (1,6-hexamethylene diisocyanate) or a mixture of these.
- the compound(s) reactive with the isocyanate preferably have an average functionality between 1.8 and 3, more preferably between 1.8 and 2.6, more preferably between 1.8 and 2.2.
- the average functionality of the compound(s) reactive with the isocyanate corresponds to the number of functions reactive with the isocyanate of the molecules, calculated theoretically for a molecule from a quantity of compounds.
- the compound reactive with the isocyanate has, according to a statistical average, a Zerewitinoff active hydrogen number in the above ranges.
- the isocyanate-reactive compound (preferably a polyol) has a number average molar mass of 500 to 100,000 g/mol.
- the isocyanate-reactive compound may have a number average molecular weight of 500 to 8000 g/mol, more preferably 700 to 6000 g/mol, plus particularly from 800 to 4000 g/mol.
- the isocyanate-reactive compound has a number average molecular weight of 500 to 600 g/mol, or 600 to 700 g/mol, or 700 to 800 g/mol, or 800 to 1000 g/mol, or 1000 to 1500 g/mol, or 1500 to 2000 g/mol, or 2000 to 2500 g/mol, or 2500 to 3000 g/mol, or 3000 to 3500 g/mol, or from 3500 to 4000 g/mol, or from 4000 to 5000 g/mol, or from 5000 to 6000 g/mol, or from 6000 to 7000 g/mol, or from 7000 to 8000 g/mol, or from 8000 to 10000 g/mol, or
- the number average molar mass can be determined by GPC, preferably according to standard ISO 16014-1:2012.
- the isocyanate-reactive compound has at least one reactive group selected from hydroxyl group, amine group, thiol group and carboxylic acid group.
- the isocyanate-reactive compound has at least one reactive hydroxyl group, more preferably several hydroxyl groups.
- the compound reactive with the isocyanate comprises or consists of a polyol.
- the polyol is selected from the group consisting of polyester polyols, polyether polyols, polycarbonate diols, polysiloxane diols, polyalkylene diols and mixtures thereof. More preferably, the polyol is a polyether polyol, a polyester polyol and/or a polycarbonate diol, such that the flexible blocks of the thermoplastic polyurethane are polyether blocks, polyester blocks and/or polycarbonate blocks, respectively. More preferably, the flexible blocks of the thermoplastic polyurethane are polyether blocks and/or polyester blocks (the polyol being a polyether polyol and/or a polyester polyol).
- polyester polyol mention may be made of polycaprolactone polyols and/or copolyesters based on one or more carboxylic acids chosen from adipic acid, succinic acid, pentanedioic acid and/or sebacic acid and one or more alcohols chosen from 1,2-ethanediol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 3-methyl-1,5-pentanediol, 1, 6-hexanediol and/or polytetrahydrofuran.
- carboxylic acids chosen from adipic acid, succinic acid, pentanedioic acid and/or sebacic acid and one or more alcohols chosen from 1,2-ethanediol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 3-methyl-1,5-pentanediol,
- the copolyester can be based on adipic acid and a mixture of 1,2-ethanediol and 1,4-butanediol, or the copolyester can be based on adipic acid, succinic acid, pentanedioic acid, sebacic acid or mixtures thereof, and polytetrahydrofuran (tetramethylene glycol), or the copolyester may be a mixture of these copolyesters.
- polyether polyol polyether diols (i.e. aliphatic ⁇ , ⁇ -dihydroxylated polyoxyalkylene blocks) are preferably used.
- the polyether polyol is a polyetherdiol based on ethylene oxide, propylene oxide, and/or butylene oxide, a block copolymer based on ethylene oxide and propylene, a polyethylene glycol, a polypropylene glycol, a polybutylene glycol, a polytetrahydrofuran, a polybutane diol or a mixture thereof.
- the polyether polyol is preferably a polytetrahydrofuran (flexible blocks of thermoplastic polyurethane therefore being blocks of polytetrahydrofuran) and/or a polypropylene glycol (flexible blocks of thermoplastic polyurethane therefore being blocks of polypropylene glycol) and/or a polyethylene glycol ( flexible blocks of thermoplastic polyurethane therefore being blocks of polyethylene glycol), preferably a polytetrahydrofuran having a number-average molar mass of 500 to 15,000 g/mol, preferably of 1,000 to 3,000 g/mol.
- the polyether polyol can be a polyetherdiol which is the reaction product of ethylene oxide and propylene oxide; the molar ratio of ethylene oxide to propylene oxide is preferably 0.01 to 100, more preferably 0.1 to 9, more preferably 0.25 to 4, more preferably 0 .4 to 2.5, more preferably from 0.6 to 1.5 and it is more preferably 1.
- the polysiloxane diols which can be used in the invention preferably have a number-average molar mass of 500 to 15,000 g/mol, preferably of 1,000 to 3,000 g/mol.
- the number average molar mass can be determined by GPC, preferably according to standard ISO 16014-1:2012.
- the polysiloxane diol is a polysiloxane of formula (I): HO-[RO]nR-Si(R')2-[O-Si(R')2]mO-Si(R')2-R -[OR] P -OH (I) in which R is preferably a C2-C4 alkylene, R' is preferably a C1-C4 alkyl and each of n, m and p independently represents an integer preferably comprised between 0 and 50, m more preferably being from 1 to 50, even more preferably from 2 to 50.
- the polysiloxane has the following formula (II): in which Me is a methyl group, or the following formula (III):
- the polyalkylene diols which can be used in the invention are preferably based on butadiene.
- the polycarbonate diols which can be used in the invention are preferably aliphatic polycarbonate diols.
- the polycarbonate diol is preferably based on an alkanediol. Preferably, it is strictly bifunctional.
- the preferred polycarbonate diols according to the invention are those based on butanediol, pentanediol and/or hexanediol, in particular 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 3-methylpentane -(1,5)-diol, or mixtures thereof, more preferably based on 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, or mixtures thereof.
- the polycarbonate diol can be a polycarbonate diol based on butanediol and hexanediol, or based on pentanediol and hexanediol, or based on hexanediol, or can be a mixture of two or more of these polycarbonate diols .
- the polycarbonate diol advantageously has a number-average molar mass of 500 to 4000 g/mol, preferably of 650 to 3500 g/mol, more preferably of 800 to 3000 g/mol.
- the number average molar mass can be determined by GPC, preferably according to standard ISO 16014-1:2012.
- One or more polyols can be used as the isocyanate-reactive compound.
- the flexible blocks of the TPU are blocks of polytetrahydrofuran, of polypropylene glycol and/or of polyethylene glycol.
- a chain extender is used for the preparation of the thermoplastic polyurethane, in addition to the isocyanate and the compound reactive with the isocyanate.
- the chain extender can be aliphatic, araliphatic, aromatic and/or cycloaliphatic. It advantageously has a number-average molar mass of 50 to 499 g/mol. The number average molar mass can be determined by GPC, preferably according to standard ISO 16014-1:2012.
- the chain extender preferably has two isocyanate-reactive groups (also called "functional groups"). It is possible to use a single chain extender or a mixture of at least two chain extenders.
- the chain extender is preferably bifunctional. Examples of chain extenders are diamines and alkanediols having 2 to 10 carbon atoms.
- the chain extender can be chosen from the group consisting of 1,2-ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 2,3-butanediol, 1,5-pentanediol, 1,6 - hexanediol, diethylene glycol, dipropylene glycol, 1,4- cyclohexanediol, 1,4-dimethanol cyclohexane, neopentylglycol, hydroquinone bis (beta-hydroxyethyl) ether (HQEE), di-, tri- , tetra-, penta-, hexa-, hepta-, octa-, nona- and/or deca-alkylene glycol, their respective oligomers, polypropylene glycol and mixtures thereof.
- HQEE hydroquinone bis (beta-hydroxyethyl) ether
- the chain extender is chosen from the group consisting of 1,2-ethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,5 pentanediol, 1,6-hexanediol, and mixtures of these, and more preferably it is chosen from 1,3-propanediol, 1,4-butanediol and/or 1,6-hexanediol. Even more preferably, the chain extender is a mixture of 1,4-butanediol and 1,6-hexanediol, more preferably in a molar ratio of 6:1 to 10:1.
- a catalyst is used to synthesize the thermoplastic polyurethane.
- the catalyst makes it possible to accelerate the reaction between the NCO groups of the polyisocyanate and the compound reactive with the isocyanate (preferably with the hydroxyl groups of the compound reactive with the isocyanate) and, if present, with the extender of chain.
- the catalyst is preferably a tertiary amine, more preferably chosen from triethylamine, dimethylcyclohexylamine, N-methylmorpholine, N,N'-dimethylpiperazine, 2-(dimethylaminoethoxy)-ethanol and/or diazabicyclo-(2,2 ,2)-octane.
- the catalyst is an organic metal compound such as a titanium acid ester, an iron compound, preferably ferric acetylacetonate, a tin compound, preferably those of carboxylic acids, more preferably tin diacetate, tin dioctoate, tin dilaurate or dialkyl tin salts, preferably dibutyl tin diacetate and/or dibutyl tin dilaurate, a bismuth carboxylic acid salt, preferably bismuth decanoate, or a mixture thereof. More preferably, the catalyst is selected from the group consisting of tin dioctoate, bismuth decanoate, titanium acid esters and mixtures thereof. More preferably, the catalyst is tin dioctoate.
- the molar ratios of the compound reactive with the isocyanate and of the chain extender can be varied to adjust the hardness and the melt index of the TPU. Indeed, when the proportion of chain extender increases, the hardness and the viscosity in the state melt of the TPU increases while the melt index of the TPU decreases.
- the isocyanate-reactive compound and the chain extender can be used in a molar ratio of 1: 1 to 1:5, preferably from 1:1.5 to 1:4.5, preferably so that the mixture of isocyanate-reactive compound and chain extender has an equivalent weight of hydroxyl greater than 200, more particularly 230 to 650, even more preferably 230 to 500.
- the isocyanate-reactive compound and the chain extender can be used in a molar ratio of 1:5.5 to 1:15, preferably 1:6 to 1:12, preferably so as to that the mixture of compound reactive with isocyanate and of chain extender has a hydroxyl equivalent weight of 110 to 200, more preferably of 120 to 180.
- the polyisocyanate, the compound reactive with the isocyanate, and preferably the chain extender are reacted, preferably in the presence of a catalyst, in quantities such that the ratio in equivalent of the NCO groups of the polyisocyanate relative to the sum of the hydroxyl groups of the compound reactive with the isocyanate and of the chain extender is from 0.95:1 to 1.10:1, preferably from 0.98:1 to 1.08:1, more preferably from 1:1 to 1.05:1.
- the catalyst is advantageously present in an amount of 0.0001 to 0.1 parts by weight per 100 parts by weight of the TPU synthesis reagents.
- the TPU according to the invention preferably has a weight-average molar mass greater than or equal to 10,000 g/mol, preferably greater than or equal to 40,000 g/mol and more preferably greater than or equal to 60,000 g/mol.
- the weight-average molar mass of the TPU is less than or equal to 80,000 g/mol.
- Weight average molar masses can be determined by gel permeation chromatography (GPC).
- the TPU is semi-crystalline. Its melting point Tm is preferably between 100°C and 230°C, more preferably between 120°C and 200°C. The melting temperature can be measured according to ISO 11357-3 Plastics - Differential scanning calorimetry (DSC) Part 3.
- the TPU can be a recycled TPU and/or a partially or completely biobased TPU.
- the TPU has a Shore D hardness of less than or equal to 75 D, more preferably less than or equal to 65 D.
- the TPU used in the invention may have a hardness of 65 Shore A to 70 Shore D, of preferably from 75 Shore A to 60 Shore D. The hardness measurements can be carried out according to standard ISO 7619-1.
- the second polymeric material can comprise a single TPU (as described above) or several of these TPUs in a mixture.
- the second polymeric material may comprise a TPU content of 70 to 97%, and preferably 80 to 96% by weight relative to the weight of the second polymeric material.
- this content can be from 70 to 75%, or from 75 to 80%; or 80 to 85%; or 85 to 90%; or 90 to 95%; or from 95 to 97% by weight based on the weight of the second polymeric material.
- the second polymeric material may further comprise at least one thermoplastic elastomeric polymer (TPE) different from thermoplastic polyurethane (TPU).
- TPE thermoplastic elastomeric polymer
- This TPE can be selected from PEBA (as described above), copolyether block esters (CoPE) and combinations thereof.
- the CoPE comprises at least one polyether (PE) block, and at least one PES polyester block (homopolymer or copolyester).
- PE polyether
- PES polyester block homopolymer or copolyester
- the polyester block can be obtained by polycondensation by esterification of a carboxylic acid, such as isophthalic acid or terephthalic acid or a bio-sourced carboxylic acid (such as furan dicarboxylic acid), with a glycol, such as ethylene glycol, trimethylene glycol, propylene glycol or tetramethylene glycol.
- a carboxylic acid such as isophthalic acid or terephthalic acid or a bio-sourced carboxylic acid (such as furan dicarboxylic acid)
- a glycol such as ethylene glycol, trimethylene glycol, propylene glycol or tetramethylene glycol.
- the polyether blocks can be as described above in the description of the PEBAs.
- the second polymeric material includes hollow glass beads.
- the hollow glass beads can be present either only in the second polymer material, or in the first and the second polymer material.
- Hollow glass beads are as described above.
- the second polymeric material may comprise a content of hollow glass beads of 3 to 25%, and preferably of 4 to 20% by weight with respect to to the weight of the second polymeric material.
- this content can be from 3 to 5%, or from 5 to 10%; or 10 to 15%; or 15 to 20%; or from 20 to 25% by weight relative to the weight of the second polymeric material.
- the hollow glass beads may comprise zinc oxide at a content greater than or equal to 1.0% by weight relative to the total weight of the hollow glass beads, and preferably greater than or equal to at 2.0% by weight based on the total weight of the hollow glass beads.
- the second polymeric material may also include one or more additives. These additives are as described above in connection with the first material.
- the second polymer material may comprise an additive content of 0 to 5%, and preferably of 0.1 to 4% by weight relative to the weight of the second polymer material.
- this content can be from 0 to 0.5%, or from 0.5 to 1%; or from 1 to 1.5%; or from 1.5 to 2%; or 2 to 2.5%; or 2.5 to 3%; or 3 to 3.5%; or 3.5 to 4%; or 4 to 4.5%; or 4.5 to 5%; by weight relative to the weight of the second polymeric material.
- the second polymer material may be in the form of a layer in the article according to the invention.
- the article according to the invention can also comprise one or more layers of additional materials.
- the article of the invention comprises:
- a further subject of the present invention is a process for the direct adhesion of a first polymer material as described above to a second polymer material as described above.
- the first polymer material is melted or softened under heating, and this molten material is brought into contact with at least part of the second polymer material to make the two materials adhere.
- the first polymeric material and the second polymeric material are independently melted or softened under heating, and the molten first polymeric material is brought into contact with at least a part of the second molten polymeric material to make the two materials adhere .
- the first polymer material and the second polymer material are assembled by a direct adhesion process chosen from: overmoulding, hot pressing, coextrusion, thermoforming, injection molding, molding by extrusion, blow molding, and mixtures thereof; preferably by overmoulding.
- the process is a process for overmolding the first polymer material, which may or may not contain hollow glass beads, on the second polymer material containing hollow glass beads.
- the hollow glass beads comprise zinc oxide in a content greater than or equal to 1.0% by weight relative to the total weight of the hollow glass beads, and preferably greater than or equal to 2 0.0% by weight relative to the total weight of the hollow glass beads.
- the assembly temperature of the direct adhesion process according to the invention is between 220 to 300°C, preferably from 240 to 290°C, preferably from 250 to 290°C.
- Such a process can for example be carried out by joining the first and second polymer materials in a molding process, by injection, in particular bi-material injection, bi-color injection, multi-color, bi-injection, co-injection.
- Other conventional processes can be used: thermoforming, hot press molding, insert molding, sandwich injection molding, extrusion molding, in particular by coextrusion, injection-blow molding, and other methods of implementing materials TPE.
- the person skilled in the art chooses the type of injection molding machine according to the type of mould, insert and materials to be injected.
- the first and second polymer materials in the form of granules, powder or any other form are loaded into a metal mould.
- the first and second polymeric materials, in the form of previously molded articles are loaded into a metal mold.
- a composite molded article can be produced by: molding the second polymeric material using a method such as injection molding, extrusion molding, in particular sheet , or film; then the insertion or shaping in a metal mold of the article thus molded; then injecting the unmolded first polymeric material into a space or cavity between the molded article and the metal mold.
- the molded article to be inserted into the metal mold is preferably preheated in the metal mold.
- PEBA 1 a copolymer with PA11 blocks and PTMG blocks with an instantaneous hardness of 53 Shore D.
- TPU 1 commercial product Elastollan® 1195A (BASF) - a copolyether block urethane, 95 Shore A.
- TPU 2 commercial product Pearlthane® ECO 12T95 (Lubrizol) - a urethane block copolyester, 95 Shore A.
- the adhesion between two polymer materials is expressed by the peel force in kgf/cm, measured according to the ISO11339 standard.
- DMPs second polymeric materials
- Table 1 Various second polymeric materials (DMPs) were prepared as shown in Table 1.
- the DMP compositions in Table 1 were prepared by melt-blending the TPU granules with the hollow glass beads and stabilizing additives (antioxidants) . This mixture was carried out by compounding on a co-rotating twin-screw extruder with a diameter of 26 mm with a temperature profile (T°) flat at 185°C. The screw speed is 250rpm and the flow rate is 15kg/h.
- the TPU(s) and the additives are introduced into the main hopper.
- the hollow glass beads are introduced by lateral force-feeding.
- the compositions were then molded on an injection molding machine (Toshiba) at a set temperature of 220° C. and a mold temperature of 20° C. in the form of plates 2 mm thick.
- the insert plates thus prepared were then placed in a 4 mm thick mold for overmoulding.
- the PEBA1 was then overmolded onto the inserts of the various DMPs 1 to 6 at an assembly temperature of 260°C and a mold temperature of 60°C.
- the overmolded articles thus prepared were then cut into strips 20 mm wide, on which peeling tests are carried out according to the ISO11339 standard with a separation speed of 100 mm/min. The results of these tests are given in Table 2 below.
- the following table compares the adhesion (peel strength in kgf/cm) of PEBA 1 (first polymer material) to DMP inserts 1 to 6 (second polymer materials), after direct adhesion by overmoulding.
- the first polymer material PEBA 1 has an adhesion on the second polymer materials (DMP2, DMP3, DMP5 and DMP6) that is similar, or even improved, compared to the second polymer materials without hollow glass beads (DMP1 and DMP4).
- the density of the overmolded articles was measured according to the ISO 1183-3:1999 standard (Table 3).
- peel tests were implemented using the second polymeric materials DMP1 and DMP3 (as described in Example 1) as inserts, onto which the first polymeric materials PMP1, PMP2 or PMP3 are overmolded.
- the compositions PMP1 to PMP3 in Table 4 were prepared by melt-blending the PEBA granules with the hollow glass beads and the stabilizing additives (antioxidants). This mixture was carried out by compounding on a co-rotating twin-screw extruder with a diameter of 26 mm with a temperature profile (T°) flat at 250°C. The screw speed is 250rpm and the flow rate is 20kg/h.
- the PEBA(s) and the additives are introduced into the main hopper.
- the hollow glass beads are introduced by lateral force-feeding.
- compositions were then overmolded at a set temperature of 260°C and a mold temperature of 60°C in the form of plates 2 mm thick on the inserts of the various DMP1 and DMP3 materials.
- the overmolded articles thus prepared were then cut into strips 20 mm wide, on which peeling tests are carried out according to the ISO11339 standard with a separation speed of 100 mm/min.
- the density of the overmolded articles was measured according to the ISO 1183-3:1999 standard (Table 6).
- the invention makes it possible to obtain articles of lower density and with adhesion between similar materials, or even improved compared to to polymeric materials (first or second) devoid of hollow glass beads.
- a peel test was implemented using the first polymeric material PMP1 as described in Example 2 as an insert, on which the second polymeric material DMP3 as described in Example 1 is overmolded. composition was then overmolded to a setpoint temperature of 230°C and a mold temperature of 60°C in the form of 2 mm thick plates on the PMP1 insert.
- the overmolded article thus prepared was then cut into strips 20 mm wide, on which peel tests were carried out according to the ISO11339 standard with a separation speed of 100 mm/min.
- the adhesion (peel force in kgf/cm) of DPM3 overmolded on the PMP1 insert was measured at 4 kgf/cm, which is significantly lower than the peel force measured on the adhesion of PMP1 overmolded on the insert DPM3 (>20, Table 2).
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Abstract
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2201810A FR3133192B1 (fr) | 2022-03-02 | 2022-03-02 | PEBA pour adhérence directe sur TPU comprenant des billes de verre creuses |
| PCT/FR2023/050261 WO2023166258A1 (fr) | 2022-03-02 | 2023-02-24 | Peba pour adhérence directe sur tpu comprenant des billes de verre creuses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4486563A1 true EP4486563A1 (fr) | 2025-01-08 |
Family
ID=81448435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23711515.9A Pending EP4486563A1 (fr) | 2022-03-02 | 2023-02-24 | Peba pour adhérence directe sur tpu comprenant des billes de verre creuses |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP4486563A1 (fr) |
| JP (1) | JP2025507731A (fr) |
| KR (1) | KR20240161105A (fr) |
| CN (1) | CN118786027A (fr) |
| FR (1) | FR3133192B1 (fr) |
| WO (1) | WO2023166258A1 (fr) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5652326A (en) | 1993-03-03 | 1997-07-29 | Sanyo Chemical Industries, Ltd. | Polyetheresteramide and antistatic resin composition |
| FR2846332B1 (fr) | 2002-10-23 | 2004-12-03 | Atofina | Copolymeres transparents a blocs polyamides et blocs polyethers |
| US7056975B2 (en) | 2003-05-27 | 2006-06-06 | Ube Industries, Ltd. | Thermoplastic resin composition having improved resistance to hydrolysis |
| JP2012233087A (ja) * | 2011-05-02 | 2012-11-29 | Three M Innovative Properties Co | ガラス微小中空球含有熱可塑性樹脂複合体 |
| FR3037961B1 (fr) * | 2015-06-26 | 2019-12-20 | Arkema France | Peba pour adherence directe sur tpe |
-
2022
- 2022-03-02 FR FR2201810A patent/FR3133192B1/fr active Active
-
2023
- 2023-02-24 CN CN202380024094.3A patent/CN118786027A/zh active Pending
- 2023-02-24 EP EP23711515.9A patent/EP4486563A1/fr active Pending
- 2023-02-24 KR KR1020247029522A patent/KR20240161105A/ko active Pending
- 2023-02-24 WO PCT/FR2023/050261 patent/WO2023166258A1/fr not_active Ceased
- 2023-02-24 JP JP2024550696A patent/JP2025507731A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN118786027A (zh) | 2024-10-15 |
| JP2025507731A (ja) | 2025-03-21 |
| FR3133192B1 (fr) | 2025-10-17 |
| KR20240161105A (ko) | 2024-11-12 |
| FR3133192A1 (fr) | 2023-09-08 |
| WO2023166258A1 (fr) | 2023-09-07 |
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