# US 8,541,502 B2 · Two/three component compatible polyolefin compounds

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- Number: US 8,541,502 B2
- Document ID: US8541502B2
- Status: Granted
- Kind: B2
- Application number: 12/995,327
- Filed: 2009-05-29
- Published: 2011-04-07
- Granted: 2013-09-24
- Earliest claimed: 2008-05-30
- Assignees: Dow Global Technologies LLC
- Applicants: Felipe Martinez; Pankaj Gupta; Ashish Batra
- Inventors: Felipe Martinez; Pankaj Gupta; Ashish Batra
- Web page: https://patentgrep.com/patent/US8541502B2

## CPC

- C08L 23/0815: {with aliphatic 1-olefins containing one carbon-to-carbon double bond}
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 27/08: of synthetic resin
- B32B 27/18: characterised by the use of special additives
- B32B 27/20: using fillers, pigments, thixotroping agents
- B32B 27/306: {comprising vinyl acetate or vinyl alcohol (co)polymers}
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- C08L 23/0853: Ethylene vinyl acetate copolymers
- C08L 23/14: Copolymers of propene (C08L23/16 takes precedence)
- C08L 51/00: Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds (for ABS polymers C08L55/02); Compositions of derivatives of such polymers
- B32B 2262/02: Synthetic macromolecular fibres
- B32B 2262/101: Glass fibres
- B32B 2264/02: Synthetic macromolecular particles
- B32B 2264/101: Glass
- B32B 2264/102: Oxide or hydroxide
- B32B 2270/00: Resin or rubber layer containing a blend of at least two different polymers
- B32B 2307/306: Resistant to heat
- B32B 2307/3065: Flame resistant or retardant, fire resistant or retardant
- B32B 2307/402: Coloured
- B32B 2307/412: Transparent
- B32B 2307/51: Elastic
- B32B 2307/54: Yield strength; Tensile strength
- B32B 2307/56: Damping, energy absorption
- B32B 2307/704: Crystalline
- B32B 2437/02: Gloves, shoes
- B32B 2605/08: Cars
- C08L 23/06: Polyethylene
- C08L 23/12: Polypropene
- Y10T 428/31855: Of addition polymer from unsaturated monomers
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A polyolefin compound including: A) at least one thermoplastic olefin copolymer including the reaction product of olefin 1 and olefin 2, wherein: olefin 1 is a C2 based olefin and olefin 2 is a C3 to C8 α-olefin or olefin 1 is a C3 based olefin and olefin 2 is a C4 to C8 α-olefin; B) at least one functional polymer, the functional polymer content in the polyolefin compound being between 1 and 75 weight percent of the combined components A and B; wherein the thermoplastic olefin copolymer and the functional polymer form a co-continuous phase; wherein: a) an 12 melt index of the polyolefin compound is from about 1 to about 15 as measured using ASTM D 1238; b) a Shore A hardness of the polyolefin compound is from about 55 to about 100 as measured using ASTM D2240; c) a flexural modulus of the polyolefin compound is from about 0.8 to about 30 kpsi as measured using ASTM D790.

## Claims

### Claim 1

A polyolefin compound comprising:
A) at least one thermoplastic olefin copolymer comprising the reaction product of olefin 1 and olefin 2, wherein:
olefin 1 is a C2 based olefin and olefin 2 is a C3 to C8 α-olefin; or
olefin 1 is a C3 based olefin and olefin 2 is a C4 to C8 α-olefin;
B) at least one functional polymer, the functional polymer content in the polyolefin compound being between 1 and 75 weight percent of the combined components A and B;
C) at least one thermoplastic olefin homopolymer,
wherein the olefin homopolymer forms a dispersed phase;
wherein the thermoplastic olefin copolymer and the functional polymer form a continuous phase;
wherein:
a) an I2 melt index of the polyolefin compound is from about 1 to about 15 g/10 min as measured using ASTM D1238 at 190° C.;
b) a Shore A hardness of the polyolefin compound is from about 55 to about 100 as measured using ASTM D2240;
c) a flexural modulus of the polyolefin compound is from about 0.8 to about 30 kpsi as measured using ASTM D790.

### Claim 2 (depends on 1)

The polyolefin compound according to claim 1, the component B comprising an ethylene vinyl acetate copolymer having a vinyl acetate content of not less than 40 weight percent of the ethylene vinyl acetate copolymer.

### Claim 3 (depends on 1)

The polyolefin compound according to claim 1, the component B comprising a maleic anhydride, amine, or hydroxyl grafted polypropylene or polyethylene.

### Claim 4 (depends on 1)

The polyolefin compound according to claim 1, wherein component B comprises a grafted olefin copolymer comprising an olefin-vinyl acetate-maleic anhydride terpolymer.

### Claim 5

A composite comprising:
at least one shock absorbing layer comprising a polyolefin compound and at least one non-polyolefin substrate layer, the polyolefin compound comprising:
A) at least one thermoplastic olefin copolymer comprising the reaction product of olefin 1 and olefin 2, wherein:
olefin 1 is a C2 based olefin and olefin 2 is a C3 to C8 α-olefin; or
olefin 1 is a C3 based olefin and olefin 2 is a C4 to C8 α-olefin;
B) at least one functional polymer, the functional polymer content in the polyolefin compound being between 1 and 75 weight percent of the combined components A and B;
C) at least one thermoplastic olefin homopolymer, wherein the olefin homopolymer forms a dispersed phase;
wherein the thermoplastic olefin copolymer and the functional polymer form a continuous phase;
wherein:
a) an I2 melt index of the polyolefin compound is from about 1 to about 15 g/10 min as measured using ASTM D1238 at 190° C.;
b) a Shore A hardness of the polyolefin compound is from about 55 to about 100 as measured using ASTM D2240;
c) a flexural modulus of the polyolefin compound is from about 0.8 to about 30 kpsi as measured using ASTM D790.

### Claim 6 (depends on 5)

The composite according to claim 5, the component B comprising an ethylene vinyl acetate copolymer having a vinyl acetate content of not less than 40 weight percent of the ethylene vinyl acetate copolymer.

### Claim 7 (depends on 5)

The composite according to claim 5, the component B comprising a maleic anhydride, amine, or hydroxyl grafted polypropylene or polyethylene.

### Claim 8 (depends on 5)

The polyolefin compound according to claim 5, wherein component B comprises a grafted olefin copolymer comprising an olefin-vinyl acetate-maleic anhydride terpolymer.

### Claim 9 (depends on 1)

A shoe composite having at least one shock absorbing layer comprising the polyolefin compound in claim 1, and at least one non-polyolefin substrate layer.

### Claim 10 (depends on 1)

A car bumper composite having at least one shock absorbing layer comprising the polyolefin elastomer in claim 1, and at least one non-polyolefin substrate layer.

### Claim 11

An artificial turf composite having at least one shock absorbing layer comprising a polyolefin elastomer comprising,
A) at least one thermoplastic olefin copolymer comprising the reaction product of olefin 1 and olefin 2, wherein:
olefin 1 is a C2 based olefin and olefin 2 is a C3 to C8 α-olefin; or
olefin 1 is a C3 based olefin and olefin 2 is a C4 to C8 α-olefin;
B) at least one functional polymer, the functional polymer content in the polyolefin compound being between 1 and 75 weight percent of the combined components A and B;
wherein the thermoplastic olefin copolymer and the functional polymer form a continuous phase;
wherein:
a) an I2 melt index of the polyolefin compound is from about 1 to about 15 g/10 min as measured using ASTM D1238 at 190° C.;
b) a Shore A hardness of the polyolefin compound is from about 55 to about 100 as measured using ASTM D2240;
c) a flexural modulus compound is from about 0.8 to about 30 kpsi as measured using ASTM D790; and
at least one non-polyolefin substrate layer.

### Claim 12 (depends on 1)

The compound of claim 1 in the form of an adhesive.