# US 2023/0265268 A1 · Thermoplastic elastomer composition

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- Number: US 2023/0265268 A1
- Document ID: US20230265268A1
- Status: Published application
- Kind: A1
- Application number: 18/296,994
- Filed: 2023-04-07
- Published: 2023-08-24
- Earliest claimed: 2019-04-22
- Assignees: Polymax Tpe LLC
- Applicants: Polymax TPE LLC
- Inventors: Yun Martin LU; Xin ZHANG; Xiaofeng ZHENG; Qianqian LI
- Web page: https://patentgrep.com/patent/US20230265268A1

## CPC

- C08L 23/06: Polyethylene
- C08K 5/005: {Stabilisers against oxidation, heat, light, ozone}
- C08L 23/0815: {with aliphatic 1-olefins containing one carbon-to-carbon double bond}
- C08L 23/16: Ethylene-propylene or ethylene-propylene-diene copolymers
- C08L 53/00: 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
- C08L 53/025: {modified}
- C08L 91/00: Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08K 3/013: Fillers, pigments or reinforcing additives
- C08K 3/346: {Clay}
- C08K 2003/265: {Calcium, strontium or barium carbonate}
- C08L 2205/03: containing three or more polymers in a blend
- C08L 2207/04: Thermoplastic elastomer
- C08L 2207/066: LDPE (radical process)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)

## Abstract

A thermoplastic elastomer composition and method of making the thermoplastic elastomer are disclosed. The thermoplastic elastomer may comprise a polymer blend. The polymer bland may comprise at least one bio based component of: a non-crosslinked elastomer, softener, polyethylene, and polar polymer. The softener may be from about 15 wt. % to about 50 wt. % softener. The polyethylene may be from about 3 wt. % to about 30 wt. %. The polar polymer may be from about 3.0 to about 15 wt. %.

## Claims

### Claim 1

A thermoplastic elastomer composition, comprising,
a polymer blend comprising from a non-crosslinked elastomer;
from about 15 wt. % to about 50 wt. % softener;
from about 3.0 wt. % to about 30 wt. % polyethylene; and
from about 3.0 wt. % to about 15 wt. % a polar polymer.

### Claim 2 (depends on 1)

The thermoplastic elastomer composition of claim 1 further comprises a filler.

### Claim 3 (depends on 1)

The thermoplastic elastomer composition of claim 1, wherein the non-cross-linked elastomer comprises styrenic block copolymer.

### Claim 4 (depends on 3)

The thermoplastic elastomer composition of claim 3, wherein the styrenic block copolymer is selected from a group consisting of styrene-butadiene-styrene polymer (SBS), styrene-ethylene butylene-styrene (SEBS), styrene-isoprene-styrene (SIS), styrene-isoprene-butadiene-styrene (SIBS), styrene-ethylene propylene-styrene (SEPS), styrene-ethylene propylene (SEP) block copolymer, styrene-ethylene ethylene propylene-styrene (SEEPS), hydrogenated polybutadiene, hydrogenated polyisoprene, hydrogenated styrene-isoprene random copolymer, poly (styrene-[(butadiene)1-x-(ethylene-co-butylene)x}-styrene), wherein x is the hydrogenated fraction of the molecule, and hydrogenated styrene-butylene random copolymer.

### Claim 5 (depends on 4)

The thermoplastic elastomer composition of claim 4, wherein the styrenic block copolymer comprises styrene-ethylene-butylene-styrene polymer.

### Claim 6 (depends on 5)

The thermoplastic elastomer composition of claim 5, wherein the styrenic block copolymer comprises about 20 wt. % to about 50 wt. % styrene-ethylene-butylene-styrene polymer.

### Claim 7 (depends on 1)

The thermoplastic elastomer composition of claim 1, wherein the polyethylene comprises linear low density polyethylene (LLDPE).

### Claim 8

A thermoplastic elastomer composition, comprising,
a polymer blend comprising:
styrenic block copolymer;
from about 15 wt. % to about 50 wt. % softener;
from about 5 wt. % to about 30 wt. % polyethylene; and
from about 3.0 to about 20 wt. % filler, wherein the thermoplastic elastomer has melt viscosity at shear rate of 67 1/s of about 200 to about 2000 measured at about 200° C.

### Claim 9 (depends on 8)

The thermoplastic elastomer composition of claim 8, further comprising from about 3.0 wt. % to about 15 wt. % a polar polymer.

### Claim 10 (depends on 8)

The thermoplastic elastomer composition of claim 8, wherein the thermoplastic elastomer has a weight percent ratio of non-crosslinked elastomer to softener, when present, from about 0.4 to about 2.5.

### Claim 11 (depends on 8)

The thermoplastic elastomer composition of claim 8, wherein the weight percent ratio is from about 0.7 to about 1.5.

### Claim 12 (depends on 8)

The thermoplastic elastomer composition of claim 8, the styrenic block copolymer is selected from a group consisting of styrene-butadiene-styrene polymer (SBS), styrene-ethylene butylene-styrene (SEBS), styrene-isoprene-styrene (SIS), styrene-isoprene-butadiene-styrene (SIBS), styrene-ethylene propylene-styrene (SEPS), styrene-ethylene propylene (SEP) block copolymer, styrene-ethylene ethylene propylene-styrene (SEEPS), hydrogenated polybutadiene, hydrogenated polyisoprene, hydrogenated styrene-isoprene random copolymer, poly (styrene-[(butadiene)1-x-(ethylene-co-butylene)x}-styrene), wherein x is the hydrogenated fraction of the molecule, and hydrogenated styrene-butylene random copolymer.

### Claim 13 (depends on 12)

The thermoplastic elastomer composition of claim 12, wherein the styrenic block copolymer comprises styrene-ethylene-butylene-styrene polymer.

### Claim 14 (depends on 13)

The thermoplastic elastomer composition of claim 13, wherein the styrenic block copolymer comprises about 20 wt. % to about 50 wt. % styrene-ethylene-butylene-styrene polymer.

### Claim 15

A thermoplastic elastomer composition, comprising,
a polymer blend comprising at least one bio based component of:
a styrenic block copolymer, wherein the styrenic block copolymer is selected from a group consisting of styrene-butadiene-styrene polymer (SBS), styrene-ethylene butylene-styrene (SEBS), styrene-isoprene-styrene (SIS), styrene-isoprene-butadiene-styrene (SIBS), styrene-ethylene propylene-styrene (SEPS), styrene-ethylene propylene (SEP) block copolymer, styrene-ethylene ethylene propylene-styrene (SEEPS), hydrogenated polybutadiene, hydrogenated polyisoprene, hydrogenated styrene-isoprene random copolymer, poly (styrene-[(butadiene)1-x-(ethylene-co-butylene)x}-styrene), wherein x is the hydrogenated fraction of the molecule, and hydrogenated styrene-butylene random copolymer;
from about 15 wt. % to about 50 wt. % softener;
from about 3 wt. % to about 30 wt. % polyethylene; and
from about 3.0 wt. % to about 15 wt. % a polar polymer, wherein the thermoplastic elastomer has a weight percent ratio of styrenic block copolymer to softener, when present, from about 0.4 to about 2.5.

### Claim 16 (depends on 15)

The thermoplastic elastomer composition of claim 15, wherein the styrenic block copolymer comprises styrene-ethylene-butylene-styrene polymer.

### Claim 17 (depends on 15)

The thermoplastic elastomer composition of claim 15, wherein the styrenic block copolymer comprises about 25 wt. % to about 50 wt. % styrene-ethylene-butylene-styrene polymer.

### Claim 18 (depends on 15)

The thermoplastic elastomer composition of claim 15, wherein the polyethylene comprises linear low density polyethylene (LLDPE).

### Claim 19 (depends on 15)

The thermoplastic elastomer composition of claim 15, wherein the thermoplastic elastomer has a weight percent ratio of styrenic block copolymer to softener, when present, of from about 0.4 to about 2.5.

### Claim 20 (depends on 15)

The thermoplastic elastomer composition of claim 15, wherein the polar polymer is at least one of ethylene-vinyl acetate, ethylene methyl acrylate copolymer, ethylene Acrylics (EAA)/Methacrylic Acids (EMAA).
