US4386190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer blend of diene/vinyl aromatic block copolymer and styrene/acrylate copolymer
Assignee: Phillips Petroleum Co
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Filing: 1982-08-23
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Granted: 1983-05-31
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Expires: 2002-08-23
Abstract
Abstract A high impact resistant polymer is provided comprising a blend of (a) a resinous, essentially non-elastomeric copolymer of a conjugated diene and vinylarene and (b) a copolymer of a vinylarene and an acrylate.
Inventors
- 👤 Fay W. Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:21
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/14; C08L53/00; C08L53/02; Y; Y10; Y10S; Y10S525/00; Y10S525/901
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
58 words
A high impact resistant composition comprising a blend consisting of (a) a resinous, essentially non-elastomeric block copolymer of from 30-36 weight percent of a conjugated diene and from 64-70 weight percent of a vinylarene and (b) a copolymer consisting of a vinylarene and an acrylate, said blend having from about 21-34 total weight percent of said conjugated diene.
Claim 2
Dependent Claim
58 words
A high impact resistant composition comprising a blend consisting of (a) a resinous, essentially non-elastomeric block copolymer of from 30-36 weight percent of a conjugated diene and from 64-70 weight percent of a vinylarene and (b) a copolymer consisting of a vinylarene and an acrylate, said blend having from about 21-34 total weight percent of said conjugated diene.
Claim 3
Dependent Claim
30 words
A high impact resistant composition according to claim 1 wherein said conjugated diene has from 4-12 carbon atoms per molecule and said vinylarene has from 8-20 carbon atoms per molecule.
Claim 4
Dependent Claim
23 words
A composition according to claim 1 wherein said resinous copolymer in (a) consists of from about 32-34 weight percent of said conjugated diene.
Claim 5
Dependent Claim
12 words
A composition according to claim 1 wherein (a) is a butadiene-styrene copolymer.
Claim 6
Dependent Claim
13 words
A composition according to claim 1 wherein (b) is a styrene-methyl methacrylate copolymer.
References Cited (Backward Citations)
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US3261887A
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US3919157A
Cited
US3950292A
Cited
US4117035A
Cited
US4100228A
Cited
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Cited
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Cited
US4195136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-30 | 1986-11-29 | 1987-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-30 | 1990-11-29 | 1991-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-30 | 1994-11-29 | 1995-05-31 | $7700.00 | Window Closed / Lapsed |