US4532288A
Expired / Lapsed
US
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Poly(aryl ether) blends
Assignee: BP Corp North America Inc
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Filing: 1982-06-23
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Granted: 1985-07-30
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Expires: 2002-06-23
Abstract
Abstract Described herein are molding compositions comprising a blend of a poly(aryl ether) polymer, a styrene and/or acrylic copolymers and a compatibilizing amount of a polyhydroxyether. These blends have improved mechanical properties.
Inventors
- 👤 Lloyd M. Robeson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:57
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/12; C08L25/06; C08L33/00; C08L33/18; C08L33/20; C08L51/00; C08L51/003; C08L71/00
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
22 words
A composition comprising a blend of a poly(aryl ether) polymer, a styrene and/or acrylic copolymer and a compatibilizing amount of a polyhydroxyether.
Claim 2
Dependent Claim
22 words
A composition comprising a blend of a poly(aryl ether) polymer, a styrene and/or acrylic copolymer and a compatibilizing amount of a polyhydroxyether.
Claim 3
Dependent Claim
72 words
A composition as defined in claim 1 wherein the poly(aryl ether) has recurring units of the formula: O--E--O--E' wherein E is the residuum of a dihydric phenol and E' is the residuum of a benzenoid compound having inert electron withdrawing groups in at least one of the position ortho and para to the valence bonds and wherein both of said residuum are valently bonded to the ether oxygen through aromatic carbon atoms.
Claim 4
Dependent Claim
18 words
A composition as defined in claim 1 wherein the poly(aryl ether) has repeating units of the formula: ##STR22##
Claim 5
Dependent Claim
18 words
A composition as defined in claim 1 wherein the poly(aryl ether) has repeating units of the formula: ##STR23##
Claim 6
Dependent Claim
18 words
A composition as defined in claim 1 wherein the poly(aryl ether) has repeating units of the formula ##STR24##
Claim 7
Dependent Claim
18 words
A composition as defined in claim 1 wherein the poly(aryl ether) has repeating units of the formula:. ##STR25##
Claim 8
Dependent Claim
24 words
A composition as defined in claim 1 wherein the poly(aryl ether) is present in amounts of from about 20 to about 85 weight percent.
Claim 9
Dependent Claim
40 words
A composition as defined in claim 1 wherein the styrene copolymer is prepared by polymerizing a conjugated diene monomer with a monomer copolymerizable therewith to provide an elastomeric backbone and thereafter grafting at least one grafting monomer onto said backbone.
Claim 10
Dependent Claim
26 words
A composition as defined in claim 8 wherein the conjugated diene monomer is butadiene and the grafting monomer is selected from styrene, acrylonitrile, or mixtures thereof
Claim 11
Dependent Claim
14 words
A composition as defined in claim 1 wherein the styrene copolymer is butadiene/styrene/acrylonitrile resin.
Claim 12
Dependent Claim
21 words
A composition as defined in claim 1 wherein the acrylic copolymer is a copolymer of methyl methacrylate with a vinyl monomer.
Claim 13
Dependent Claim
19 words
A composition as defined in claim 1 wherein the acrylate copolymer is poly(methyl methacrylate) grafted onto an elastomic backbone.
Claim 14
Dependent Claim
14 words
A composition as defined in claim 1 wherein the copolymer is an acrylate-styrene-acrylonitrile polymer.
Claim 15
Dependent Claim
26 words
A composition as defined in claim 1 wherein the styrene and/or acrylic copolymer is present in amounts of from about 15 to about 80 weight percent.
Claim 16
Dependent Claim
62 words
A composition as defined in claim 1 wherein the polyhydroxyether has the general formula: --F--O--E"--O).sub.n wherein F is the radical residuum of a dihydric phenol, E is a radical residuum of an epoxide selected from mono- and diepoxides and containing from 1 to 2 hydroxyl groups and n is an integer which represents the degree of polymerization and is at least 20.
Claim 17
Dependent Claim
18 words
A composition as defined claims 1 and 15 wherein the polyhydroxyether has repeating units of the formula: ##STR26##
Claim 18
Dependent Claim
23 words
A composition as defined in claim 1 wherein the polyhydroxyether is present in amounts of from about 0.5 to about 20 weight percent.
Claim 19
Dependent Claim
46 words
A composition as defined in claim 1 which contains an impact modifier which is a graft copolymer of a vinyl aromatic, an acrylate, an unsaturated nitrile, or mixtures thereof, grafted onto an unsaturated elastomeric backbone and having a tensile modulus of less than about 100,000 psi.
Claim 20
Dependent Claim
11 words
An article molded from the composition of claims 1 or 15.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-29 | 1989-01-28 | 1989-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-29 | 1993-01-28 | 1993-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-29 | 1997-01-28 | 1997-07-30 | $7700.00 | Window Closed / Lapsed |