# US 4,393,170 A · Polymeric blends

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- Number: US 4,393,170 A
- Document ID: US4393170A
- Status: Granted
- Kind: A
- Application number: 06/286,097
- Filed: 1981-07-22
- Granted: 1983-07-12
- Earliest claimed: 1980-04-30
- Assignees: Phillips Petroleum Company
- Inventors: John R. Haws
- Web page: https://patentgrep.com/patent/US4393170A

## CPC

- C08L 33/06: of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L 45/02: of coumarone-indene polymers
- C08L 53/02: of vinyl-aromatic monomers and conjugated dienes
- C08L 9/06: Copolymers with styrene
- 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: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

A polymeric blend containing (a) copolymer of lactone with conjugated diene or monovinylarene or both conjugated diene and monovinylarene, (b) acrylic ester polymer, and (c) coumarone-indene resin. A polymeric blend as described above also containing (d) conjugated diene monovinylarene teleblock copolymer.

## Claims

### Claim 1

A composition of matter that is a blend of polymers comprising:
(a) a block copolymer of lactone with a comonomer chosen from the group consisting of (1) conjugated diene, (2) monovinylarene, and (3) both conjugated diene and monovinylarene,
(b) acrylic ester polymer,
(c) coumarone-indene resin, and
(d) conjugated diene-monovinylarene teleblock copolymer represented by the general formula (A--B--).sub.n Y wherein A represents a block of polymerized monovinylarene monomer, B represents a block of polymerized conjugated diene units or alternatively a random or random tapered block copolymer of conjugated diene and monovinylarene monomers, Y is the residual unit from a polyfunctional coupling agent or a polyfunctional initiating species and n has a value from 2 to 6.

### Claim 2 (depends on 1)

A composition of claim 1 wherein the combination of (a) and (d) is in the range of about 15 to about 90 weight percent, (b) is in the range of about 5 to about 50 weight percent and (c) is in the range of about 5 to about 35 weight percent.

### Claim 3 (depends on 2)

A composition of claim 2 wherein the combination of (a) and (d) is in the range of about 30 to about 70 weight percent, (b) is in the range of about 5 to about 40 weight percent, and (c) is in the range of about 15 to about 30 weight percent.

### Claim 4 (depends on 1)

A composition of claim 1 wherein said blend also contains compatible additives chosen from the group consisting of flame retardants, dyes, pigments, and additives for plasticizing, extending, lubricating, or inhibiting oxidation.

### Claim 5 (depends on 2)

A composition of claim 2 wherein said blend also contains compatible additives chosen from the group consisting of flame retardants, dyes, pigments, and additives for plasticizing, extending, lubricating, or inhibiting oxidation.

### Claim 6 (depends on 3)

A composition of claim 3 wherein said blend also contains compatible additives chosen from the group consisting of flame retardants, dyes, pigments, and additives, for plasticizing, extending, lubricating, or inhibiting oxidation.