WO2021107664A1 - Composition d'élastomère thermoplastique et procédé de production d'un produit moulé par injection l'utilisant - Google Patents

Composition d'élastomère thermoplastique et procédé de production d'un produit moulé par injection l'utilisant Download PDF

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WO2021107664A1
WO2021107664A1 PCT/KR2020/017036 KR2020017036W WO2021107664A1 WO 2021107664 A1 WO2021107664 A1 WO 2021107664A1 KR 2020017036 W KR2020017036 W KR 2020017036W WO 2021107664 A1 WO2021107664 A1 WO 2021107664A1
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weight
parts
block copolymer
copolymer resin
thermoplastic elastomer
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PCT/KR2020/017036
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English (en)
Korean (ko)
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신나현
박승빈
서석범
이규호
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롯데케미칼 주식회사
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Publication of WO2021107664A1 publication Critical patent/WO2021107664A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof

Definitions

  • the present invention relates to a thermoplastic elastomer composition and a method for manufacturing a double injection molded article using the same.
  • thermoplastic elastomer Since a thermoplastic elastomer (TPE) is physically crosslinked unlike solid rubber that is chemically crosslinked, it exhibits elasticity like solid rubber at room temperature and has properties that can be subjected to extrusion and injection molding processes. In a thermoplastic elastomer, long molecules are irregularly twisted like a coil. When a tensile force is applied to a thermoplastic elastomer, the molecules are stretched in the direction of the force. When the applied tensile force is removed, the molecules quickly return to their original disordered arrangement. will do Due to the advantages of such thermoplastic elastomers, such as easy processability and elastic restoring force, various products have been developed as the demand as a substitute material for rubber that cannot be reused is rapidly increasing. For example, the thermoplastic elastomer may be applied to various fields such as automobile parts, construction gaskets, handles, hoses, cushioning materials, and wire insulators.
  • thermoplastic elastomer is used for the handle of various products, and in many cases, it is attached or assembled to a product made of polyamide, also called nylon, to configure the product. Since the thermoplastic elastomer used for the handle is frequently exposed to sweat, oil, etc., oil resistance is required, and furthermore, high adhesion with the polyamide material is required.
  • known thermoplastic elastomers have a problem in that adhesive strength with the polyamide material is very insufficient, so that a separate adhesive must be used or formed into a complex structure and assembled.
  • thermoplastic elastomer having excellent adhesion to the polyamide material member is required. to be.
  • An object of the present invention is to provide a thermoplastic elastomer composition capable of forming a thermoplastic elastomer having excellent oil resistance, double injection property with a polyamide material, and excellent adhesion to a polyamide-based resin-containing polymer member. Further, by using the thermoplastic elastomer composition, it is an object to provide a double injection molded article without a separate adhesive.
  • An exemplary embodiment of the present invention is a first SEBS (styrene-ethylene-butylene-styrene) block copolymer resin; Second SEBS (styrene-ethylene-butylene-styrene) block copolymer resin; SBS (styrene-butylene-styrene) block copolymer resin; maleic anhydride grafted polypropylene resin; and a polyolefin resin; wherein the first SEBS block copolymer resin has a weight average molecular weight of about 250,000 g/mol or more and about 450,000 g/mol or less, and the second SEBS block copolymer resin has a weight average molecular weight of about 100,000 g/mol or more and about 200,000 g/mol or less, the maleic anhydride grafting ratio of the maleic anhydride-grafted polypropylene resin is greater than about 1 part by weight and not more than about 5 parts by weight, and the polyolefin resin is the
  • the polyolefin resin may include at least one of a homo polypropylene resin, a block polypropylene resin, and a random polypropylene resin.
  • thermoplastic elastomer composition may further include a non-aromatic oil.
  • the weight ratio of the first SEBS block copolymer resin and the second SEBS block copolymer resin may be about 5:5 to about 2:8.
  • the content of the SBS block copolymer resin is about 5
  • the content of the maleic anhydride-grafted polypropylene resin may be about 20 parts by weight or more and about 40 parts by weight or less.
  • the content of the non-aromatic oil is about 80 parts by weight or more and about 180 parts by weight or less.
  • Another embodiment of the present invention a polyamide-based resin-containing polymer member; and an elastomer layer prepared using the thermoplastic elastomer composition on the polymer member.
  • thermoplastic elastomer composition according to an exemplary embodiment of the present invention has excellent oil resistance and is capable of double injection molding with a polyamide-based resin-containing polymer member, so that a composite structure of the polymer member and the thermoplastic elastomer can be manufactured without a complicated assembly process.
  • the double injection molded article according to an exemplary embodiment of the present invention is attached to the polyamide-based resin-containing polymer member without a separate adhesive, and has very good adhesion to the polymer member.
  • ⁇ a and ⁇ b are defined as ⁇ a and ⁇ b.
  • the unit “parts by weight” may mean a ratio of weight between each component.
  • the weight average molecular weight may be a value converted to polystyrene measured by gel permeation chromatography (GPC).
  • thermoplastic elastomer composition according to the present invention can be manufactured into an integrated molded body through double injection during molding of a polyamide-based member by appropriately controlling fluidity.
  • thermoplastic elastomer when using the thermoplastic elastomer according to the present invention, it is possible to manufacture a thermoplastic elastomer integrally provided with a polyamide-based member without a separate adhesive and assembly process, and the thermoplastic elastomer is suitable for a handle of a product due to its excellent oil resistance. There is an advantage.
  • the SEBS block copolymer resin according to an exemplary embodiment of the present invention may have a saturated olefin structure composed of polyethylene and polybutylene through a process of undergoing a complete catalytic hydrogenation reaction on the polybutadiene block of SBS, which is a precursor.
  • the SEBS block copolymer is a copolymer including an aromatic vinyl compound and a conjugated diene-based compound, and may impart ductility to the thermoplastic elastomer composition.
  • the aromatic vinyl compound may be a hard segment, and may contribute to preventing thermoplastic deformation and imparting physical properties such as a crosslinked product under certain conditions.
  • the conjugated diene-based compound may be a soft segment, and may contribute to imparting ductility properties such as rubber.
  • thermoplastic elastomer composition By applying two different SEBS block copolymer resins to the thermoplastic elastomer composition according to an exemplary embodiment of the present invention, adhesion to a polyamide-based member and double injection properties can be improved.
  • the thermoplastic elastomer composition may include two types of SEBS block copolymer resins having different weight average molecular weights.
  • the thermoplastic elastomer composition has a weight average molecular weight of about 250,000 g/mol or more and about 450,000 g/mol or less (eg, 250,000 g/mol, 260,000 g/mol, 270,000 g/mol) mol, 280,000 g/mol, 290,000 g/mol, 300,000 g/mol, 310,000 g/mol, 320,000 g/mol, 330,000 g/mol, 340,000 g/mol, 350,000 g/mol, 360,000 g/mol, 370,000 g/mol mol, 380,000 g/mol, 390,000 g/mol, 400,000 g/mol, 410,000 g/mol, 420,000 g/mol, 430,000 g/mol, 440,000 g/mol or 450,000 g/
  • the weight ratio of the first SEBS block copolymer resin and the second SEBS block copolymer resin is from about 5:5 to about 2:8 (eg, 5:5, 4:6, 3:7 or 2:8).
  • the weight ratio of the first SEBS block copolymer resin and the second SEBS block copolymer resin satisfies the above range, the oil resistance in the final molded product is better, so that mechanical properties are lowered due to contact with oil products or the human body or appearance quality There may be no problem such as lowering, but is not limited thereto.
  • the SBS block copolymer resin according to an exemplary embodiment of the present invention can ensure uniform adhesion to the polyamide-based member. Specifically, when manufacturing a double injection molded product using the thermoplastic elastomer composition, there may be a deviation in adhesive strength that may occur in a region where heat is not sufficiently supplied away from the gate. can play a role in minimizing it.
  • the content of the SBS copolymer resin is about 5 parts by weight or more and about 30 parts by weight based on 100 parts by weight of the total weight of the first SEBS block copolymer resin and the second SEBS block copolymer resin.
  • the adhesive surface of the final molded article is uniform and thus the adhesive force may be better, and there is no problem such as increase in viscosity and decrease in MI (melt index) of the thermoplastic elastomer composition, so moldability It may be superior to this, but is not limited thereto.
  • the maleic anhydride-grafted polypropylene resin (MAH-g-PP) according to an exemplary embodiment of the present invention may increase adhesion to a polar substrate, specifically, a polyamide-based member.
  • the maleic anhydride-grafted polypropylene resin may serve to improve adhesion to a polar substrate by imparting polarity to the non-polar thermoplastic elastomer composition.
  • the maleic anhydride grafting ratio of the maleic anhydride-grafted polypropylene resin is greater than about 1 part by weight and not more than about 5 parts by weight (eg, 1.1 parts by weight, 2 parts by weight, 3 parts by weight). parts by weight, 4 parts by weight, or 5 parts by weight), specifically, about 2 parts by weight or more and about 4 parts by weight or less.
  • the maleic anhydride-grafted polypropylene resin used in a conventional thermoplastic resin composition is mainly prepared by reaction extrusion, and has a low maleic anhydride graft ratio of 0.5 to 1.0 parts by weight.
  • the maleic anhydride-grafted polypropylene resin according to an exemplary embodiment of the present invention may be prepared using a solution method, wherein the maleic anhydride grafting ratio is higher than about 1 part by weight and not more than about 5 parts by weight. .
  • the maleic anhydride-grafted polypropylene resin having a graft ratio of greater than about 1 part by weight and less than or equal to about 5 parts by weight has a high graft ratio, thereby greatly improving adhesion to a polar substrate.
  • the content of the maleic anhydride-grafted polypropylene resin is about 20 parts by weight based on 100 parts by weight of the total weight of the first SEBS block copolymer resin and the second SEBS block copolymer resin.
  • the adhesive force of the final molded article is sufficient, and there may be no problems such as a decrease in grip and a cost increase due to an increase in hardness of the final molded article.
  • the polyolefin resin according to an exemplary embodiment of the present invention improves the processability of the thermoplastic elastomer composition, and may provide suitable mechanical strength to the thermoplastic elastomer produced using the thermoplastic elastomer composition.
  • the polyolefin resin may include at least one of a homo polypropylene resin, a block polypropylene resin, and a random polypropylene resin, but is not limited thereto.
  • the polyolefin resin has a weight average molecular weight of about 100,000 g/mol or more and about 300,000 g/mol or less (eg, 100,000 g/mol, 110,000 g/mol, 120,000 g/mol, 130,000 g/mol).
  • the weight average molecular weight of the polyolefin resin satisfies the above range, there is no problem in that the viscosity of the thermoplastic elastomer composition increases or the miscibility is lowered due to a difference in viscosity between components in the thermoplastic elastomer composition, so that moldability and surface wettability It may be more advantageous in providing a final product having excellent adhesion due to excellent adhesion.
  • the polyolefin resin may be a homo polypropylene resin having a weight average molecular weight of about 100,000 g/mol or more and about 300,000 g/mol or less, but is not limited thereto.
  • the content of the polyolefin resin is about 5 parts by weight or more and about 20 parts by weight or less (for example, 5 parts by weight, 6 parts by weight, 7 parts by weight, 8 parts by weight, 9 parts by weight, 10 parts by weight, 11 parts by weight, 12 parts by weight, 13 parts by weight, 14 parts by weight, 15 parts by weight, 16 parts by weight. parts, 17 parts by weight, 18 parts by weight, 19 parts by weight, or 20 parts by weight), specifically about 10 parts by weight or more and about 20 parts by weight or less.
  • the processability of the thermoplastic elastomer composition may be further improved, and a more suitable mechanical strength may be provided to a thermoplastic elastomer manufactured using the thermoplastic elastomer composition, but is not limited thereto.
  • thermoplastic elastomer composition may further include a non-aromatic oil.
  • the non-aromatic oil according to an exemplary embodiment of the present invention may improve hardness and moldability, which are directly related to the feel of a thermoplastic elastomer, and improve oil resistance.
  • the non-aromatic oil may include paraffin oil.
  • the paraffin oil may have a kinematic viscosity of about 90 cSt or more, specifically about 90 cSt or more and about 180 cSt or less, more specifically about 100 or more and about 150 cSt or less, measured at 40 ° C. in accordance with ASTM D445, in the above range It may be more advantageous to improve hardness, moldability, and oil resistance, but is not limited thereto.
  • the content of the non-aromatic oil is about 80 parts by weight or more and about 180 parts by weight or less.
  • 80 parts by weight, 90 parts by weight, 100 parts by weight, 110 parts by weight, 120 parts by weight, 130 parts by weight, 140 parts by weight, 150 parts by weight, 160 parts by weight, 170 parts by weight or 180 parts by weight Specifically, it may be about 100 parts by weight or more and about 150 parts by weight or less, more specifically about 120 parts by weight or more and about 140 parts by weight or less.
  • the flowability is excellent to improve productivity and processability, and the surface wettability is excellent to have excellent adhesion to dissimilar materials, and the quality of the molded product may also be excellent. It is not limited.
  • the content of the SBS block copolymer resin is about 5 parts by weight or more and about 30 parts by weight. parts, and the content of the maleic anhydride-grafted polypropylene resin may be about 20 parts by weight or more and about 40 parts by weight or less.
  • the content of the SBS block copolymer resin is about 5 parts by weight or more and about 30 parts by weight. parts, and the content of the maleic anhydride-grafted polypropylene resin is about 20 parts by weight or more and about 40 parts by weight or less, the content of the polyolefin resin is about 5 parts by weight or more and about 20 parts by weight or less, and the non-aromatic The content of the oil may be about 80 parts by weight or more and about 180 parts by weight or less.
  • the thermoplastic elastomer composition may further include additives commonly used in the art.
  • the thermoplastic elastomer composition may further include an additive selected from the group consisting of inorganic fillers, heat stabilizers, antioxidants and slip agents.
  • the thermoplastic elastomer composition may further include an inorganic filler as an additive to improve physical properties and molding processability of the thermoplastic elastomer composition.
  • the inorganic filler may include at least one selected from the group consisting of talc, calcium carbonate, clay, nanoclay, and kaolin, but is not limited thereto.
  • the content of the inorganic filler is about 50 parts by weight or more and about 150 parts by weight or less, specifically about 75 parts by weight or more and about 125 parts by weight based on 100 parts by weight of the total weight of the first SEBS block copolymer resin and the second SEBS block copolymer resin. may be less than or equal to parts by weight.
  • the improvement effect such as physical properties and molding processability of the thermoplastic elastomer composition may be excellent, but the present invention is not limited thereto.
  • thermoplastic elastomer composition according to the present invention enables double injection with a polyamide-based member through the blending of the composition as described above, and furthermore, the thermoplastic elastomer manufactured using double injection can be combined with a polyamide-based member without a separate adhesive. It can be attached with high adhesion and have excellent oil resistance.
  • Another embodiment of the present invention a polyamide-based resin-containing polymer member; and an elastomer layer prepared using the thermoplastic elastomer composition on the polymer member.
  • thermoplastic elastomer composition according to the present invention has excellent double injection property and adhesion with the polyamide-based member, a thermoplastic elastomer can be manufactured without a separate adhesive on the polyamide-based member through the double injection method.
  • the double injection method in the present specification may be applied without limitation to the double injection method generally known in the art.
  • the polyamide-based resin-containing polymer member is a polyolefin-based resin (eg, a polyethylene-based resin, a polypropylene-based resin, etc.), a polycarbonate-based resin, in addition to the polyamide-based resin, It may further include a coalescence, a combination thereof.
  • a polyolefin-based resin eg, a polyethylene-based resin, a polypropylene-based resin, etc.
  • a polycarbonate-based resin in addition to the polyamide-based resin
  • the type of resin that can be added is not limited thereto, and various resins generally used in the art may be further included.
  • the polyamide-based resin-containing polymer member may further include glass fibers.
  • the polyamide-based resin-containing polymer member further includes glass fibers, rigidity may be further improved.
  • the content of the glass fiber may be appropriately adjusted according to the physical properties required for the final product.
  • the double injection molded article may be one in which a thermoplastic elastomer is bonded to a polyamide-based resin-containing polymer member.
  • the thermoplastic elastomer of the double injection-molded article may be applied to a portion with a lot of human contact, such as a handle, and the thermoplastic elastomer has excellent oil resistance, so that deterioration of physical properties can be minimized even with frequent use.
  • the double injection molded article as described above may be an automobile interior material or a tool such as an electric drill or driver, and the handle portion thereof may be composed of a thermoplastic elastomer.
  • the prepared pellets were dried at about 80 ° C. for about 2 hours and then injected at an injection temperature of about 260 ° C. in a 150 ton injection machine to prepare a specimen for evaluation of physical properties, and the physical properties thereof were measured and shown in Table 1 below.
  • First SEBS block copolymer resin (first SEBS): Kraton G1651 (weight average molecular weight: 350,000 g/mol)
  • Second SEBS block copolymer resin (second SEBS): Kraton G1650 (weight average molecular weight: 130,000 g/mol)
  • SBS block copolymer resin (SBS): LCY GP7533 (weight average molecular weight: 130,000 g/mol)
  • Homo polypropylene resin Lotte Chemical SJ-170 (weight average molecular weight: 190,000 g/mol)
  • Paraffin oil Shell Catenex T145
  • Inorganic filler Calcium carbonate, KOCH CMS-8000
  • MFI Melt flow index
  • Adhesion For the evaluation of adhesion between different materials, a specimen of Lanxess' AKV30 with a size of 10 ⁇ 15 ⁇ 2 mm was prepared and double inserts were placed on a polyamide-based member (70 wt% nylon 6 and 30 wt% glass fiber). injection, and 100 mm/min in the 90° direction. Adhesion was measured according to VDI2019 with speed.
  • Example 1 and Comparative Example 1 when the maleic anhydride graft ratio of the maleic anhydride-grafted polypropylene resin is 1 part by weight, it can be confirmed that the adhesive strength is too low, and when the maleic anhydride grafting ratio is 3 parts by weight, excellent It can be seen that adhesion can be implemented. Accordingly, it can be seen that when prescribing for actual use, it is advantageous in terms of adhesion improvement to prescribe maleic anhydride-grafted polypropylene having a maleic anhydride graft ratio of more than 1 part by weight.
  • Comparative Example 2 which does not contain the second SEBS block copolymer resin, it can be confirmed that it exhibits poor moldability according to a very low melt flow index compared to Example 1, and has significantly lower adhesion compared to Example 1 can be seen to indicate.
  • Comparative Example 2 containing only the first SEBS block copolymer resin without the second SEBS block copolymer resin has very poor oil resistance.
  • Comparative Example 5 containing only the second SEBS block copolymer resin without the first SEBS block copolymer resin has improved oil resistance, but it can be confirmed that physical properties such as elongation, tensile strength and adhesion are very poor. Therefore, it can be confirmed that when the first SEBS block copolymer resin and the second SEBS block copolymer resin are properly mixed as in the example, the adhesive strength and mechanical properties of the thermoplastic elastomer can be simultaneously satisfied.
  • Comparative Example 3 which did not contain the SBS block copolymer resin, there was a problem in that there was a slight deviation in the adhesion form at the injection location far from the gate except for the central portion that was continuously heated close to the gate.
  • the hardness was slightly increased, and it was confirmed that the quality characteristics such as cushioning feeling were slightly decreased. Therefore, it can be confirmed that it is necessary to prescribe the SBS block copolymer resin as in Example 1 in order to express the overall uniform adhesion to the thermoplastic elastomer and to improve the quality such as grip.

Abstract

La présente invention concerne une composition d'élastomère thermoplastique et un procédé de production d'un produit moulé par injection à l'aide de ladite composition d'élastomère thermoplastique. L'élastomère thermoplastique comprend : une première résine de copolymère séquencé styrène-éthylène-butylène-styrène (SEBS) prédéterminée ; une deucième résine de copolymère séquencé styrène-éthylène-butylène-styrène (SEBS) ; une résine de copolymère séquencé styrène-butylène-styrène (SBS) ; une résine de polypropylène greffé par l'anhydride maléique ; et une résine de polyoléfine.
PCT/KR2020/017036 2019-11-27 2020-11-27 Composition d'élastomère thermoplastique et procédé de production d'un produit moulé par injection l'utilisant WO2021107664A1 (fr)

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KR20160114994A (ko) * 2015-03-25 2016-10-06 현대자동차주식회사 저경도 열가소성 탄성체 수지조성물 및 이를 이용한 성형품
CN106366543B (zh) * 2016-08-26 2019-02-15 宁波市青湖弹性体科技有限公司 一种可黏合尼龙的高性能热塑性弹性体及其制备方法

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CN113715450A (zh) * 2021-08-19 2021-11-30 江门市佳信达模具科技有限公司 一种双层结构的拼装地板及其制备方法
CN113715450B (zh) * 2021-08-19 2023-08-22 江门市佳信达模具科技有限公司 一种双层结构的拼装地板及其制备方法
CN113817284A (zh) * 2021-09-22 2021-12-21 张家港市美特高分子材料有限公司 一种用于粘接三元乙丙橡胶的热塑性弹性体接角料及制备方法

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