US4822837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer mixture comprising a polyphenylene ether and a polyamide
Assignee: General Electric Co
•
Filing: 1986-10-06
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Granted: 1989-04-18
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Expires: 2006-10-06
Abstract
Abstract The mechanical properties of polyphenylene ether - polyamide mixtures are improved by the addition of an oxidized polyolefin wax. In addition, a phosphite is preferably added.
Inventors
- 👤 Roelof van der Meer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:18
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L77/00; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
47 words
A polymer mixture comprising the following constituents: (a) 1 to 99% by weight of a polyphenylene ether, (b) 99 to 1% by weight of a polaymide, and (c) 0.01 to 10% by weight based upon the weight of (a) and (b) together of an oxidized polyolefin wax.
Claim 2
Dependent Claim
47 words
A polymer mixture comprising the following constituents: (a) 1 to 99% by weight of a polyphenylene ether, (b) 99 to 1% by weight of a polaymide, and (c) 0.01 to 10% by weight based upon the weight of (a) and (b) together of an oxidized polyolefin wax.
Claim 3
Dependent Claim
32 words
A polymer mixture as in claim 1 wherein said oxidized polyethylene wax is present in an amount of 0.05 to 2% by weight based upon the weight of (a) and (b) together.
Claim 4
Dependent Claim
9 words
A polymer mixture as in claim 1 further comprising:
Claim 5
Dependent Claim
31 words
(d) 0.01 to 10% by weight based upon the weight of (a) and (b) of a phosphite compound selected from the group consisting of alkyl phosphite, aryl phosphite and alkyl-aryl phosphite.
Claim 6
Dependent Claim
31 words
(d) 0.01 to 10% by weight based upon the weight of (a) and (b) of a phosphite compound selected from the group consisting of alkyl phosphite, aryl phosphite and alkyl-aryl phosphite.
Claim 7
Dependent Claim
33 words
A polymer mixture as in claim 1 further comprising at least one impact strength improving agent in a quantity of at most 40% by weight based upon the weight of (a) and (b).
Claim 8
Dependent Claim
26 words
A polymer mixture as in claim 4 wherein said impact strength improving agent is selected from the group consisting of hydrogenated styrene-butadiene diblock and triblock copolymers.
Claim 9
Dependent Claim
26 words
A polymer mixture as in claim 4 wherein said impact strength improving agent is selected from the group consisting of non-hydrogenated styrene-butadiene diblock and triblock copolymers.
Claim 10
Dependent Claim
31 words
A polymer mixture as in claim 1 further comprising a styrene polymer in an amount up to 100% by weight calculated with respect to the sum of components (a) and (b).
Claim 11
Dependent Claim
22 words
A polymer mixture as in claim 1 further comprising a filler selected from the group consisting of carbon fibers and glass fibers.
References Cited (Backward Citations)
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US3822227A
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US3692867A
Cited
US3959211A
Cited
US4338421A
Cited
US4315086A
Cited
US4600741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-17 | 1992-10-17 | 1993-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-17 | 1996-10-17 | 1997-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-17 | 2000-10-17 | 2001-04-18 | $7700.00 | Window Closed / Lapsed |