EP0083049A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Composition of PPE and PS-grafted EPDM and plasticizer
Assignee: General Electric Co
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Filing: 1982-12-18
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Granted: —
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Expires: 2002-12-18
Abstract
Abstract An improved thermoplastic composition comprising an admixture of polyphenylene ether resin, an alkenyl aromatic resin which is modified with a rubbery interpolymer of ethylene, an alpha-olefin and polyene (for example, EPDM-modified polystyrene), a plasticizer and optionally a polystyrene homopolymer, is described.
Inventors
- 👤 Glenn Dale Cooper
- 👤 William Robert Haaf
- 👤 Gim Fun Lee, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 18:53
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
68 words
A thermoplastic composition comprising an admixture of (a) from 70 to 99 percent by weight of polyphenylene ether resin; (b) from 1 to 25 percent by weight of an alkenyl aromatic resin which has been modified with a rubbery interpolymer of ethylene, alpha-olefin and polyene; (c) from 0 to 20 percent by weight of polystyrene homopolymer; and (d) from 1 to 35 percent by weight of a plasticizer.
Claim 2
Dependent Claim
68 words
A thermoplastic composition comprising an admixture of (a) from 70 to 99 percent by weight of polyphenylene ether resin; (b) from 1 to 25 percent by weight of an alkenyl aromatic resin which has been modified with a rubbery interpolymer of ethylene, alpha-olefin and polyene; (c) from 0 to 20 percent by weight of polystyrene homopolymer; and (d) from 1 to 35 percent by weight of a plasticizer.
Claim 3
Dependent Claim
29 words
A composition according to Claim 1, in which the rubbery portion of the interpolymer modified alkenyl aromatic resin comprises from 8 to 70 percent by weight of said resin.
Claim 4
Dependent Claim
14 words
A composition according to Claim 1, in which the alkenyl aromatic resin is polystyrene.
Claim 5
Dependent Claim
15 words
A composition according to Claim 1, in which the polyphenylene ether resin is poly(2,6-dimethyl-l,4-phenylene ether).
Claim 6
Dependent Claim
16 words
The composition of Claim 1, wherein the polyene of the interpolymer comprises cyclopentadiene or ethylidene norbornene.
Claim 7
Dependent Claim
28 words
The composition of Claim 1, wherein the interpolymer comprises from about 10 to 90% ethylene, about 10 to 90 alpha-olefin and about 0.1 to 10% polyene by mole.
Claim 8
Dependent Claim
14 words
A composition according to Claim 1, in which the plasticizer is a triaryl phosphate.
Claim 9
Dependent Claim
14 words
A composition according to Claim 7, in which the triaryl phosphate is triphenyl phosphate.
Claim 10
Dependent Claim
20 words
A composition according to Claim 8, in which the triphenyl phosphate has been substituted with one or more isopropyl groups.
Claim 11
Dependent Claim
11 words
A composition according to Claim 1, which includes a polystyrene homopolymer.
Claim 12
Dependent Claim
16 words
The composition of Claim 1, wherein the plasticizer comprises less than about 6% by resin weight.
Claim 13
Dependent Claim
16 words
The composition of Claim 1, wherein the plasticizer comprises from 1 to 4% by resin weight.
Claim 14
Dependent Claim
17 words
The composition of Claim 1, wherein the plasticizer comprises from about 7 to 35% by resin weight.
Claim 15
Dependent Claim
17 words
A composition according to Claim 1, containing from 0.5 to 3 percent by weight of a polyolefin.
Claim 16
Dependent Claim
12 words
A composition according to Claim 14, in which the polyolefin is polyethylene.
References Cited (Backward Citations)
No citation records indexed.
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