Patent US4659760A successfully refreshed from Google Patents.
US4659760A
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Polymer mixture comprising a polyphenylene ether and a polyamide
Assignee: General Electric Co
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Filing: 1985-05-30
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Granted: 1987-04-21
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Expires: 2005-05-30
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
2026-10-31 02:24
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: 8
Claim 1
Independent Claim
81 words
A a reaction product of a polymer mixture comprising a polyphenylene ether and a polyamide, characterized in that the polymer mixture comprises the reaction product of the following constituents: (a) 1-99% by weight of polyphenylene ether, (b) 99-1% by weight of polyamide, and (c) 0.01-10% by weight of an oxidized polyolefin wax based upon the weight of a and b together, the reaction product is prepared by extruding at a temperature of at least 285° C. and at least 200 r.p.m.
Claim 2
Dependent Claim
81 words
A a reaction product of a polymer mixture comprising a polyphenylene ether and a polyamide, characterized in that the polymer mixture comprises the reaction product of the following constituents: (a) 1-99% by weight of polyphenylene ether, (b) 99-1% by weight of polyamide, and (c) 0.01-10% by weight of an oxidized polyolefin wax based upon the weight of a and b together, the reaction product is prepared by extruding at a temperature of at least 285° C. and at least 200 r.p.m.
Claim 3
Dependent Claim
22 words
A polymer mixture as claimed in claim 1, characterized in that the polymer mixutee comprises 0.05-2% by weight of oxidized polyethylene wax.
Claim 4
Dependent Claim
23 words
A polymer mixture as claimed in claim 1, further comprising: (d) 0.01-10% by weight of an alkyl phosphite, aryl phosphite, or alkyl-aryl phosphite.
Claim 5
Dependent Claim
40 words
A polymer mixture as claimed in claim 1, characterized in that the polymer mixture further comprises an impact strength improving agent in a quantity of at most 40% by weight calcuated with respect to the sum of a and b.
Claim 6
Dependent Claim
44 words
A polymer mixture as claimed in claim 4, characterized in that the polymer mixture comprises a hydrogenated or a non-hydrogenated styrene-butadine diblock or triblock copolymer in a quantity of at most 40% by weight calculated with respect to the sum of a and b.
Claim 7
Dependent Claim
40 words
A polymer mixtuer as claimed in claim 1,3,4 or 5, characterized in that the polymer mixture further comprises a styrene polymer in a quantity of at most 100% by weight calculated with respect to the sum of a and b.
Claim 8
Dependent Claim
23 words
A polymer mixture as claimed in claims 1 further comprising a filler selected from the group consisting of carbon fibers and glass fibres.
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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) | 1990-04-20 | 1990-10-20 | 1991-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-20 | 1994-10-20 | 1995-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-20 | 1998-10-20 | 1999-04-21 | $7700.00 | Window Closed / Lapsed |