Biomaterial-based elastomeric materials

Patent metadata

Field	Value
Publication number	US-2025084587-A1
Application number	US-202418885305-A
Country	US
Kind code	A1
Filing date	Sep 13, 2024
Priority date	Sep 13, 2023
Publication date	Mar 13, 2025
Grant date	—

Abstract

Biomaterial-based elastomeric materials are disclosed, as are methods for making and using such fibrous materials. In some embodiments, a biomaterial textile composition includes a mixture of a thermoplastic elastomer and a second polymer. The biomaterial textile compositions of the disclosure are characterized by desirable combinations of material properties, e.g., elastic modulus and hardness, that make the materials especially suitable for various applications, particularly as leather analogs and similar textiles.

First claim

1 . A biomaterial textile composition, comprising a polymer component, wherein the polymer component comprises:
a. from about 20 wt % to about 95 wt % of a thermoplastic elastomer; and b. from about 5 wt % to about 80 wt % of a second polymer, wherein:
the thermoplastic elastomer has an elastic modulus of no more than about 10 MPa;
the second polymer has at least one characteristic selected from the group consisting of (i) a melt flow index greater than a melt flow index of the thermoplastic elastomer, (ii) a slip velocity greater than a slip velocity of the thermoplastic elastomer, or (iii) a viscosity lower than a viscosity of the thermoplastic elastomer; and
the biomaterial textile composition has at least one of (i) an elastic modulus of no more than about 25 MPa, (ii) a Shore A hardness of no more than about 70, and (iii) a tensile stress at 5% tensile strain of no more than about 1.2 MPa.

2 . The biomaterial textile composition of claim 1 , wherein the thermoplastic elastomer makes up at least about 40 wt % of the polymer component.

3 . The biomaterial textile composition of claim 1 , wherein the thermoplastic elastomer is a block copolymer comprising first and second polymer blocks.

4 . The biomaterial textile composition of claim 1 , wherein the second polymer makes up no more than about 80 wt % of the polymer component.

5 . The biomaterial textile composition of claim 1 , wherein the second polymer is selected from the group consisting of a thermoplastic polyester elastomer, an ethylene-vinyl acetate, a low-density polyethylene, a styrene-butadiene-styrene block copolymer, a styrene-ethylene-butylene-styrene block copolymer, a styrene-ethylene-propylene-styrene block copolymer, a styrene-ethylene-butadiene-styrene block copolymer, and combinations thereof.

6 . The biomaterial textile composition of claim 1 , wherein the second polymer is selected from the group consisting of Braskem I'm Green™ EVA SVT2180, Braskem I'm Green™ low-density polyethylene SBC818, Braskem I'm Green™ linear low density polyethylene, Braskem I'm Green™ high-density polyethylene, Styroflex® 2G66 B60, Pebax® thermoplastic elastomers, Dryflex® Green, DuPont Hytrel® 3078 ECO B, polybutylene succinate, polyhydroxy alkanoates, polylactic acid, nylon-11, polyethylene furanoate, Keltan Eco EPDM, and combinations thereof.

7 . A biomaterial textile, comprising:
the biomaterial textile composition of claim 1 ; and one or both of (i) a coating comprising or derived from a polar solvent, and (ii) a backing layer.

8 . The biomaterial textile of claim 7 , comprising the backing layer, wherein the backing layer is laminated to a layer of the biomaterial textile composition without the use of a chemical adhesive or bonding agent.

9 . A method for making a biomaterial textile, comprising:
deforming a deformable mixture comprising a liquid fraction and one or more biomaterials into a desired spatial configuration, wherein the one or more biomaterials comprise at least one polymer; treating the deformable mixture; and processing the polymer.

10 . The method of claim 9 , wherein the one or more biomaterials comprise at least two polymers.

11 . The method of claim 9 , wherein the deforming step comprises extruding the deformable mixture.

12 . The method of claim 9 , wherein the processing step comprises at least one of calendering, compression molding, and injection molding.

13 . The method of claim 9 , wherein the polymer makes up from about 5 wt % to about 70 wt % of the biomaterial textile.

14 . The method of claim 9 , wherein:
the biomaterial textile comprises a thermoplastic elastomer in an amount of from about 20 wt % to about 90 wt % of the biomaterial textile; and the biomaterial textile has an elastic modulus of no more than about 2500 MPa and at least one of (i) an elastic modulus of no more than about 20 MPa and (ii) a Shore A hardness of no more than about 60.

15 . A biomaterial textile composition, comprising a polymer component, wherein the polymer component comprises at least 20 wt % of a thermoplastic elastomer block copolymer, wherein the thermoplastic elastomer block copolymer comprises:
a. a first block comprising a polymeric composition selected from the group consisting of polyfarnesene, hydrogenated polyfarnesene, poly(β-farnesene), hydrogenated poly(β-farnesene), polymyrcene, hydrogenated polymyrcene, poly(β-myrcene), hydrogenated poly(β-myrcene), polybutadiene, hydrogenated polybutadiene, polyisoprene, hydrogenated polyisoprene, polyocimene, hydrogenated polyocimene, polyalloocimene, hydrogenated polyalloocimene, polyphellandrene, hydrogenated polyphellandrene, poly(cyclic 1,3-diene), hydrogenated poly(cyclic 1,3-diene), polymyrcenol, hydrogenated polymyrcenol, poly(β-myrcenol), hydrogenated poly(β-myrcenol), polyipsdienol, hydrogenated polyipsdienol, poly(ethylidene norbornene), poly(dicyclopentadiene), poly(vinyl norbornene), poly(alkyl acrylate), poly(ester) acrylate, poly(ether) acrylate, poly(vinyl ester), poly(vinyl alcohol), poly(vinyl nitrile), poly(ether), poly(ester), poly(carbonate), polyethylene, polypropylene, a polyitaconate, polyisobutylene, polyoctene, polyhexene, polybutylene, polymethyl pentene, polysiloxane, and combinations thereof; and b. a second block comprising a polymeric composition selected from the group consisting of polymerized aromatic vinyl compound, poly(methyl methacrylate), polypropylene, polyethylene, a polyimide, polyisobornyl methacrylate, polyisobornyl acrylate, and combinations thereof, wherein:
the thermoplastic elastomer block copolymer has an elastic modulus of no more than about 10 MPa; and
the biomaterial textile composition has at least one of (i) an elastic modulus of no more than about 25 MPa, (ii) a Shore A hardness of no more than about 70, and (iii) a tensile stress at 5% tensile strain of no more than about 1.2 MPa.

16 . The biomaterial textile composition of claim 15 , wherein the polymeric composition of the first block comprises a structural unit derived from one or more farnesenes, wherein the structural unit derived from one or more farnesenes differs from the one or more farnesenes from which it is derived in that at least about 30%, at least about 40%, at least about 50%, at least about 60%, at least about 70%, at least about 80%, at least about 90%, or about 100% of carbon-carbon bonds that are double bonds in the one or more farnesenes are single bonds in the structural unit.

17 . The biomaterial textile composition of claim 15 , wherein the second block comprises styrene monomer units in an amount of about 17 to about 22 wt % of the thermoplastic elastomer block copolymer.

18 . The biomaterial textile composition of claim 15 , wherein a weight ratio of the first block to the second block is from about 50:50 to about 95:5.

19 . The biomaterial textile composition of claim 15 , wherein a proportion of carbon in the thermoplastic elastomer block copolymer that is renewable, recyclable, and/or biologically derived is at least about 70% or at least about 80%.

20 . The biomaterial textile composition of claim 15 , wherein the thermoplastic elastomer block copolymer makes up at least about 40 wt % of the polymer component.

21 . A biomaterial textile comprising the biomaterial textile composition of claim 15 , wherein the biomaterial textile further comprises one or both of (i) a coating, wherein the coating comprises or is derived from a polar solvent, and (ii) a backing layer.

22 . The biomateri

Assignees

• The Fynder Group Inc

Inventors

• Epstein Eric
• Weigand Jeremy
• Gantz Jeremy
• Staszel Chris

Classifications

• C08L23/10

  Homopolymers or copolymers of propene · CPC title

• C08L23/04

  Homopolymers or copolymers of ethene · CPC title

• D06N2209/1642

  Hardnes · CPC title

• D06N3/0061

  Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds · CPC title

• D06N2201/0254

  Polyolefin fibres · CPC title