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US4826933A
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Polyphenylene ether-polyamide blends
Assignee: GE Chemicals Inc
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Filing: 1987-08-25
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Granted: 1989-05-02
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Expires: 2007-08-25
Abstract
Abstract Thermoplastic blend compositions comprise a polyphenylene ether resin, a polyamide resin and a compatibilizing agent present in an amount sufficient to effect compatibilization of the polyphenylene ether resin and the polyamide resin. The compatibilizing agent comprises a compound selected from the group consisting of tetracarboxylic acids of aromatic and alicyclic compounds and dianhydride derivatives thereof, and halogen substituted phthalic anyhydrides.
Inventors
- 👤 Thomas S. Grant
- 👤 Ronald L. Jalbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:29
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/126; C08L77/00; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
64 words
A thermoplastic blend composition, comprising (a) a polyphenylene ether resin; (b) a polyamide resin; and (c) a compatibilizing agent present in an amount sufficient to effect compatibilization of the polyphenylene ether resin and the polyamide resin, said compatibilizing agent comprising a compound selected from the group consisting of tetracarboxylic acids of aromatic and alicyclic compounds and dianhydride derivatives thereof, and halogen substituted phthalic anhydrides.
Claim 2
Dependent Claim
64 words
A thermoplastic blend composition, comprising (a) a polyphenylene ether resin; (b) a polyamide resin; and (c) a compatibilizing agent present in an amount sufficient to effect compatibilization of the polyphenylene ether resin and the polyamide resin, said compatibilizing agent comprising a compound selected from the group consisting of tetracarboxylic acids of aromatic and alicyclic compounds and dianhydride derivatives thereof, and halogen substituted phthalic anhydrides.
Claim 3
Dependent Claim
23 words
A thermoplastic blend composition as defined by claim 1, wherein the compatibilizing agent comprises a tetracarboxylic acid or dianhydride of an aromatic compound.
Claim 4
Dependent Claim
24 words
A thermoplastic blend composition as defined by claim 2, wherein the aromatic compound is selected from the group consisting of benzene, naphthalene and anthracene.
Claim 5
Dependent Claim
19 words
A thermoplastic blend composition as defined by claim 3, wherein the compatibilizing agent comprises a tetracarboxylic acid of naphthalene.
Claim 6
Dependent Claim
17 words
A thermoplastic blend composition as defined by claim 4, wherein the compatibilizing agent comprises 1,4,5,8-naphthalene tetracarboxylic acid.
Claim 7
Dependent Claim
16 words
A thermoplastic blend composition as defined by claim 3, wherein the compatibilizing agent comprises pyromellitic dianhydride.
Claim 8
Dependent Claim
23 words
A thermoplastic blend composition as defined by claim 1, wherein the compatibilizing agent comprises a tetracarboxylic acid or dianhydride of an alicyclic compound.
Claim 9
Dependent Claim
24 words
A thermoplastic blend composition as defined by claim 7, wherein the alicyclic compound contains a hydrocarbon ring having from 5 to 12 carbon atoms.
Claim 10
Dependent Claim
31 words
A thermoplastic blend composition as defined by claim 8, wherein the compatibilizing agent comprises a tetracarboxylic acid of an alicyclic compound containing a hydrocarbon ring having 5 to 12 carbon atoms.
Claim 11
Dependent Claim
17 words
A thermoplastic blend composition as defined by claim 9, wherein the compatibilizing agent comprises cyclopentane tetracarboxylic acid.
Claim 12
Dependent Claim
19 words
A thermoplastic blend composition as defined by claim 1, wherein the compatibilizing agent comprises a halogen substituted phthalic anhydride.
Claim 13
Dependent Claim
19 words
A thermoplastic blend composition as defined by claim 11, wherein the compatibilizing agent comprises a bromine substituted phthalic anhydride.
Claim 14
Dependent Claim
16 words
A thermplastic blend composition as defined by claim 12, wherein the compatibilizing agent comprises tetrabromophthalic anhydride.
Claim 15
Dependent Claim
39 words
A thermoplastic blend composition as defined by claim 1, comprising 5 to 95 weight percent of the polyphenylene ether resin, 5 to 95 weight percent of the polyamide resin and 0.01 to 10 weight percent of the compatibilizing agent.
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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) | 1992-05-01 | 1992-10-31 | 1993-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-01 | 1996-10-31 | 1997-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-01 | 2000-10-31 | 2001-05-02 | $7700.00 | Window Closed / Lapsed |