EP4688431A1 - Compositions élastomères thermoplastiques - Google Patents

Compositions élastomères thermoplastiques

Info

Publication number
EP4688431A1
EP4688431A1 EP24715109.5A EP24715109A EP4688431A1 EP 4688431 A1 EP4688431 A1 EP 4688431A1 EP 24715109 A EP24715109 A EP 24715109A EP 4688431 A1 EP4688431 A1 EP 4688431A1
Authority
EP
European Patent Office
Prior art keywords
structural unit
unit derived
polymer block
elastomer composition
block copolymer
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
Application number
EP24715109.5A
Other languages
German (de)
English (en)
Inventor
Marcel Gründken
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuraray Europe GmbH
Original Assignee
Kuraray Europe GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kuraray Europe GmbH filed Critical Kuraray Europe GmbH
Publication of EP4688431A1 publication Critical patent/EP4688431A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C08L23/12—Polypropene
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/22—Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • 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
    • C08L53/025—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 modified
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/02—Applications for biomedical use
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group

Definitions

  • thermoplastic elastomeric compositions comprising a block copolymer comprising a polymer block containing a structural unit derived from an aromatic vinyl compound and a polymer block containing a structural unit derived from farnesene, multilayers films and laminates comprising the same as well as the use of these films and laminates in disposable hygiene and medical products.
  • Disposable hygiene and medical articles often comprise a elastomeric composition, e.g. in form of laminates used in the waistbands and elastic ears.
  • Such elastomeric laminates must meet specific properties such as softness, elasticity, tensile strength, stress-relaxation, and desirable levels of tension at various levels of extension.
  • biomass-derived, also called bio-based, raw materials for these articles due to an increased environmental consciousness.
  • bio-based materials are vegetable oils used as plasticizers.
  • hybrid bio an approach can be chosen in which polymers are used that are often referred to as “hybrid bio”. In this approach, building blocks of natural origin are used in combination with conventional starting materials in a synthetic process to yield polymers with a certain content of bio-based origin.
  • ⁇ -farnesene can be extracted from sugarcane as a natural building block and converted into a block copolymer comprising a polymer block KS01522 containing a structural unit derived from an aromatic vinyl compound and a polymer block containing a structural unit derived from farnesene, which are partially bio-based.
  • KS01522 a polymer block containing a structural unit derived from an aromatic vinyl compound
  • farnesene which are partially bio-based.
  • thermoplastic elastomeric compositions with bio-based content showing sufficient softness, elasticity, tensile strength, stress-relaxation, and/or processibility.
  • a first aspect of the present application concerns a thermoplastic elastomer composition
  • a block copolymer (I) comprising a polymer block containing a structural unit derived from an aromatic vinyl compound and a polymer block containing a structural unit derived from farnesene, b.
  • a block copolymer (II) comprising a polymer block containing a structural unit derived from an aromatic vinyl compound and a polymer block containing a structural unit derived from a conjugated diene compound, c. a polyolefin elastomer, and d. a plasticizer.
  • thermoplastic shall have its normal meaning, namely, a substance that can become plastic on heating and hardens on cooling through multiple cycles as would be understood by a KS01522 person of ordinary skill in the relevant art.
  • the term “elastomer” also shall have its normal meaning, namely, a substance that has elastic properties, as would be understood by a person of ordinary skill in the relevant art.
  • the structural unit derived from farnesene (“farnesene unit”) in the block copolymer (I) comprising a polymer block containing a structural unit derived from an aromatic vinyl compound and a polymer block containing a structural unit derived from farnesene may be ⁇ -farnesene or ⁇ -farnesene represented by the following formula (1), but ⁇ -farnesene is preferred due to the ease of manufacture. It should be noted that ⁇ -farnesene may be used in combination with ⁇ -farnesene.
  • the aromatic vinyl compound (“styrene unit”) in the block copolymer (I) comprising a polymer block containing a structural unit derived from an aromatic vinyl compound and a polymer block containing a structural unit derived from farnesene may be a structural unit derived from an aromatic vinyl compound.
  • aromatic vinyl compounds examples include styrene, ⁇ - methylstyrene, 2-methylstyrene, 3-methylstyrene, 4- methylstyrene, 4-propylstyrene, butylstyrene 4-t-, 4- cyclohexylstyrene, 4-dodecylstyrene, 2,4-dimethylstylene, 2,4- diisopropylstyrene, 2,4,6-trimethylstyrene, 2-ethyl-4- benzylstylene, 4-(phenylbutyl)styrene, 1-vinylnaphthalene, 2- vinylnaphthalene, vinylanthracene, N,N-diethyl-4- aminoethylstylene, vinyl pyridine, 4-dichlorobenylstyrene, dichlorostyrene, and mixtures thereof.
  • the bonding configuration of the units is not particularly limited, and may be either a linear configuration, a branched configuration, a radial configuration or a combination of these configurations.
  • the configuration in which the units are linearly bonded to each other is preferred, and more preferably is the configuration represented by (A-B)l, A-(B-A)m, B-(AB)n or C-(AB)o wherein A, B and C are the styrene unit (A) ,the farnesene unit (B) and the conjugated diene such as butadiene and isoprene, respectively, and l, m, n and o are each independently an integer of 1 or more.
  • the block copolymer (I) comprising a polymer block containing a structural unit derived from an aromatic vinyl compound and a polymer block containing a structural unit derived from farnesene has a bio-based content measured according to ASTM 6868 and as further described below of equal to or more than 25%, more preferably more than 40%, even more preferably more than 50% and most preferably more than 70%.
  • the block copolymer (I) comprising a polymer block containing a structural unit derived from an aromatic vinyl compound and a polymer block containing a structural unit derived from farnesene has a bio-based content measured according to ASTM 6868 and as further described below from 45% to 85%, more preferably from 55% to 75%.
  • Suitable polyolefin elastomers include, for example, propylene/ethylene random copolymers, propylene/ethylene block copolymers, propylene/butane random copolymers, propylene/ethylene/butene block copolymers, propylene/pentene random copolymers, propylene/hexene random copolymers, KS01522 propylene/octene random copolymers, propylene/ethylene/pentene random copolymers, propyle11e/ethylene/hexene random copolymers, or mixtures thereof.
  • the polyolefin elastomer according to the present invention comprises propylene and ethylene units.
  • Suitable examples of commercial available polyolefin elastomers comprising propylene and ethylene units include those available under the VISTAMAXX® brand from ExxonMobil Chemical, including but not limited to the following grades: 2330; 3000; 3020; 3980; 6102; 6202; and 6502; the QUEOTM brand from Borealis, including but not limited to the following grades: 0201, 0203, 0210, 8201 8203, 8210, 8230; as well as the INFUESETM and ENGAGETM brands from DOW Chemical.
  • the ethylene content in the polyolefin elastomer is higher than 5 wt%, more preferably higher than 10 wt%, most preferably higher than 15 wt% and specifically (around) 16 wt%.
  • the thermoplastic elastomer composition comprises from 35 to 90 wt% polyolefin elastomer, more preferably from 50 to 85 wt%, more preferably from 55 to 75 wt%, and most preferably around 60 wt%.
  • Suitable plasticizers include, but are not limited to, a mineral oil such as paraffinic process oil and naphthenic process oil; a vegetable oil, such as rapeseed oil, peanut oil and rosin; a phosphoric acid ester; a low molecular weight polyethylene glycol; a liquid paraffin; a low molecular weight ethylene, ethylene-alpha-olefin copolymerized oligomer; a liquid polybutene; a liquid polyisoprene or its hydrogenated equivalent; a synthetic oil such as liquid polybutadiene or isoprene, or mixtures of the above.
  • a mineral oil such as paraffinic process oil and naphthenic process oil
  • a vegetable oil such as rapeseed oil, peanut oil and rosin
  • a phosphoric acid ester a low molecular weight polyethylene glycol
  • a liquid paraffin a low molecular weight ethylene, ethylene-alpha-olefin copolymerized
  • the amount of plasticizer present in the inventive thermoplastic elastomer composition is preferably from 5 to 20 wt%, more preferably from 7 to 15 wt% and most preferably from 8 to 12 wt%.
  • the plasticizer may also include a synthetic hydrocarbon resin or tackifier, e.g. alpha-methylstyrene (AMS), terpene resins, polyterpenes, terpene phenol resins, rosin esters; aliphatic, cycloaliphatic or aromatic, C5, C9, hydrogenated or partly- hydrogenated resins or combinations thereof.
  • AMS alpha-methylstyrene
  • terpene resins polyterpenes, terpene phenol resins, rosin esters
  • aliphatic, cycloaliphatic or aromatic C5, C9, hydrogenated or partly- hydrogenated resins or combinations thereof.
  • KS01522 Specific examples of the plasticizer include compounds represented by the following structural formulas: KS01522 Structural formula (1-5) Structural formula (1-6) 8) KS01522 Structural formula (2-1) 2) 8) KS01522
  • the block copolymer (II) comprises a polymer block containing a structural unit derived from an aromatic vinyl compound and a polymer block containing a structural unit derived from a conjugated diene compound.
  • the block copolymer (II) is a hydrogenated styrene- b-ethylene/propylene-b-styrene block copolymer (SEPS), a styrene- b-ethylene/ethylene/propylene-b-styrene (SEEPS) or a hydrogenated styrene-b-butadiene-b-styrene (SEBS).
  • SEPS hydrogenated styrene- b-ethylene/propylene-b-styrene block copolymer
  • SEEPS styrene- b-ethylene/ethylene/propylene-b-styrene
  • SEBS hydrogenated hydrogenated styrene-b-butadiene-b-styrene
  • the styrene-b-ethylene-ethylene-propylene-b- styrene block copolymer have a melt flow index (230°C, 2.16 kg) of less than 1.0 g/10 min, most preferably of less than 0.1 g/10 min.
  • the thermoplastic elastomer composition according to the invention comprises 5 to 55 wt% styrene-b- ethylene-ethylene-propylene-b-styrene block copolymer (SEEPS), more preferably 10 to 50 wt%, more preferably 15 to 35 wt%, and most preferably 15 to 25 wt%.
  • the inventive thermoplastic elastomer compounds may include one or more additives.
  • Suitable optional additives include conventional or commercially available additives. These additives can be used in any amount that is sufficient to obtain a desired processing or performance property for the thermoplastic elastomer compound and/or the elastomeric film formed therefrom. Suitable example include antioxidants and stabilizers; bonding agents; colorants such as pigments or dyes; impact modifiers; non-elastomeric thermoplastic polymer; tackifiers; ultraviolet light absorbers; waxes; attractants such as mosquito attractants or fly attractants; and mixtures thereof.
  • the inventive thermoplastic elastomer composition may also include one or more other components selected from the list comprising polylactic acid (PLA), acrylonitrile-butadiene- styrene copolymer (ABS), polyamides (PA), polycarbonates (PC), polyethylene terephthalate (PET), polyethylene terephthalate copolymers (PETG), polyhydroxyalkanoates (PHA), thermoplastic elastomers (TPE), thermoplastic polyurethanes (TPU), polyethylenes (PE), polypropylenes (PP), ethylene vinyl alcohols (EVOH), acrylonitrile styrene acrylate (ASA), polyacrylates, polyterpenes, polyphenols and polymethacrylates.
  • PALS polylactic acid
  • PA acrylonitrile-butadiene- styrene copolymer
  • PC polyamides
  • PET polycarbonates
  • PET polyethylene terephthalate
  • PET polyethylene terephthalate copolymers
  • Such components can be present, for example, to adjust processibility or other properties in the thermoplastic elastomer compound.
  • Suitable non- elastomeric thermoplastic polymer should be compatible with the polyolefin elastomer blend and the SEEPS block copolymer.
  • Such polyolefins are commercially available from a number of sources.
  • the inventive thermoplastic elastomer composition comprises less than 7 wt% of one or more thermoplastic polymers selected from the list consisting of polylactic acid (PLA), acrylonitrile-butadiene-styrene copolymer (ABS), polyamides (PA), polycarbonates (PC), polyethylene terephthalate (PET), polyethylene terephthalate copolymers (PETG), KS01522 polyhydroxyalkanoates (PHA), thermoplastic elastomers (TPE), thermoplastic polyurethanes (TPU), (homo)polyethylenes (PE), (homo)polypropylenes (PP), ethylene vinyl alcohols (EVOH), acrylonitrile styrene acrylate (ASA), polyacrylates, polyterpenes, polyphenols, and polymethacrylates.
  • PALS polylactic acid
  • PA acrylonitrile-butadiene-styrene copolymer
  • PA polyamides
  • PC polycarbonates
  • the amount of less than 7 wt% shall mean that the combined amounts of such thermoplastic polymers present in the composition shall be below said 7 wt%. More preferably, the inventive thermoplastic elastomer composition comprises less than 7 wt% of one or more polystyrene and/or (homo)polypropylene polymers. More preferably, the inventive thermoplastic elastomer composition comprises less than 3 wt% of one or more polystyrene and/or (homo)polypropylene polymers. Most preferably, the thermoplastic elastomer composition comprises no polypropylene homopolymers. The inventive thermoplastic elastomer composition may also include other styrene block copolymers, e.g.
  • thermoplastic elastomer composition has a total bio-based content measured according to ASTM 6868 and as further described below of from 5% to 70%, more preferably between 10% and 50%, and most preferably between 15% and 35%.
  • a further aspect of the present invention concerns a multilayer film comprising a core layer sandwiched between two skin layers wherein a. the core layer comprises the thermoplastic elastomer composition as described above, and b. the two skin layers each comprise at least one polyolefin.
  • the polyolefin in the skin layers is a homo polyolefin, more preferably a homo ethylene or a homo propylene.
  • the amount of homo polyolefin in the skin layers is preferably between 60 and 95%, more preferably between 70 and 90%.
  • the skin layers independently further comprise - a block copolymer (I) comprising a polymer block containing a structural unit derived from an aromatic vinyl compound and a polymer block containing a structural unit derived from farnesene, - a block copolymer (II) comprising a polymer block containing a structural unit derived from an aromatic vinyl compound and a polymer block containing a structural unit derived from a conjugated diene compound, and/or - a polyolefin elastomer.
  • the skin layers independently comprise a block copolymer (I) comprising a polymer block containing a structural unit derived from an aromatic vinyl compound and a polymer block containing a structural unit derived from farnesene with a bio- based content measured according to ASTM 6868 and as further described in the description from 45% to 85% in an amount from 5% to 20%.
  • a film comprising the thermoplastic elastomer composition as described above as well as a process for the production of such a film by extrusion, especially by co- extrusion, blown film extrusion or cast film extrusion.
  • the skin layers individually have a thickness of from 10 to 150 ⁇ m, more preferably from 20 to 80 ⁇ m.
  • the skin layers individually have a density from 10 to 100 g/m 3 , more preferably, 20 to 50 g/m 3 .
  • KS01522 Yet another aspect of the present invention concerns a laminate comprising the film as described before and a non-woven textile- like fabric based on polyamide (PA), polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE), cotton or a mixture thereof (e.g. bi-component nonwovens).
  • PA polyamide
  • PET polyethylene terephthalate
  • PP polypropylene
  • PE polyethylene
  • cotton a mixture thereof (e.g. bi-component nonwovens).
  • a further aspect concerns the use of the films or the laminates in disposable hygiene and medical products including diapers, sanitary pads, face masks, covers, elastic patches and insect capturing sheets such as mosquito capturing sheets or fly capturing sheets.
  • Such laminates can be produced by any conventionally known technique, for example by co-extrusion, thermobonding, adhesive bonding or ultrasonic bonding. They may advantageously be activated before use, for example by stretching or using the ring roll technique.
  • the films or laminates can be used, for example, as pull tabs, side tabs, side panels, back ears, waistbands, laminate layers, chassis elements, and the like.
  • the following examples illustrate the invention. Examples Preparation of pre-mixes PM1 to PM4 Pre-mixtures for the film preparation were compounded on a co- rotating twin screw compounder available from Maris with a diameter of 58 mm, a Length-to-Diameter-ratio (LD) of 55, no screens. No melt pump was used.
  • LD Length-to-Diameter-ratio
  • the materials were pre-blended on a highspeed batch type mixer, with app. 100 litter volume, in- line of the compounding feeder.
  • the compounding temperature was controlled from 20 °C (inlet) to 190 °C (die), app. 500 rpm screw speed, underwater cutting, use of antiblocking agents.
  • KS01522 Production of the films Films were produced on a cast film extrusion line with the following setup: 3-layer co-extrusion with the configuration A/B/A (see below in table 1), screw dimensions of extruder A: diameter 20 mm, length 500 mm, B: diameter 30 mm, length 900 mm. Die with width of 300 mm, T-die type.
  • Bio-based content is an indicator indicating the content ratio of a bio-derived substance in the target substance, which is measured according to a ASTM D6866.
  • the composition is as follows: PM1: 74.5% SEBS (SEPTONTM 8004, manufacturer: Kuraray Co., Ltd.), 24.5% Processing Oil (Paraffinic, medical quality, type Oyster 261, manufacturer Petroyag), ⁇ 1% Processing Aids (antioxidant, silica, talc) PM2: 49.9% SEEPS (SEPTONTM 4033, manufacturer: Kuraray Co., Ltd.), 49.9% Bio-based Processing Oil (VIVASPE 10277), ⁇ 1% Processing Aids (antioxidant, silica, talc) PM3: 39.9% SEEPS (SEPTONTM 4033, manufacturer: Kuraray Co., Ltd.), 39.9% Bio-based Processing Oil (VIVASPE 10277), 20% HSFC (SEPTONTM BIO-series SF904, manufacturer Kuraray Co., Ltd.), ⁇ 1% Processing Aids (antioxidant, silica, talc)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne des compositions élastomères thermoplastiques comprenant un copolymère séquencé (I) comprenant un bloc polymère contenant un motif structural dérivé d'un composé vinylique aromatique et un bloc polymère contenant un motif structural dérivé du farnésène, des films multicouches et des stratifiés les comprenant ainsi que l'utilisation de ces films et stratifiés dans des produits d'hygiène et médicaux jetables.
EP24715109.5A 2023-04-05 2024-03-22 Compositions élastomères thermoplastiques Pending EP4688431A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23166660.3A EP4442460A1 (fr) 2023-04-05 2023-04-05 Compositions élastomères thermoplastiques
PCT/EP2024/057805 WO2024208610A1 (fr) 2023-04-05 2024-03-22 Compositions élastomères thermoplastiques

Publications (1)

Publication Number Publication Date
EP4688431A1 true EP4688431A1 (fr) 2026-02-11

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Family Applications (2)

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EP23166660.3A Withdrawn EP4442460A1 (fr) 2023-04-05 2023-04-05 Compositions élastomères thermoplastiques
EP24715109.5A Pending EP4688431A1 (fr) 2023-04-05 2024-03-22 Compositions élastomères thermoplastiques

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EP23166660.3A Withdrawn EP4442460A1 (fr) 2023-04-05 2023-04-05 Compositions élastomères thermoplastiques

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WO (1) WO2024208610A1 (fr)

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US20250084587A1 (en) * 2023-09-13 2025-03-13 The Fynder Group, Inc. Biomaterial-based elastomeric materials

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JP6866993B2 (ja) * 2016-08-10 2021-04-28 株式会社クラレ 熱可塑性エラストマー組成物、積層構造体及び該積層構造体の製造方法
CN110770297A (zh) * 2017-06-16 2020-02-07 普立万公司 用于在非弹性体聚合物基材上包覆成型的具有高生物可再生含量的热塑性弹性体配混物
CN113039243B (zh) * 2018-11-16 2024-04-19 埃万特公司 对具有高生物基含量的热塑性弹性体配混物进行包覆成型

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EP4442460A1 (fr) 2024-10-09

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