Patent DE124606C successfully refreshed from Google Patents.
US4584334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyphenylene ether resin compositions containing linear low density polyolefin
Assignee: General Electric Co
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Filing: 1984-03-02
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Granted: 1986-04-22
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Expires: 2004-03-02
Abstract
Abstract Thermoplastic blends of polyphenylene ether resin and linear low density polyethylene, optionally containing an impact modifier, are described. The moldings are characterized by good physical properties, including superior impact strength, in comparison with corresponding blends containing conventional (i.e., highly branched) low density polyethylene.
Inventors
- 👤 Gim F. Lee, Jr.
- 👤 Sai P. Ting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:11
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/04; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L75/00; C08L81/00; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
45 words
A thermoplastic molding composition, comprising an admixture of (a) a polyphenylene ether resin together with a rubber modified polystyrene; and (b) an amount of linear low density polyethylene sufficient to provide a higher Gardner impact strength than the same amount of a low density polyethylene.
Claim 2
Dependent Claim
45 words
A thermoplastic molding composition, comprising an admixture of (a) a polyphenylene ether resin together with a rubber modified polystyrene; and (b) an amount of linear low density polyethylene sufficient to provide a higher Gardner impact strength than the same amount of a low density polyethylene.
Claim 3
Dependent Claim
24 words
A composition according to claim 1, in which the linear low density polyethylene has a density between 0.89 and 0.96 grams per cubic centimeter.
Claim 4
Dependent Claim
24 words
A composition according to claim 1, in which the linear low density polyethylene comprises a copolymer of ethylene and one or more alpha olefins.
Claim 5
Dependent Claim
28 words
A composition according to claim 3, in which the copolymer is of ethylene and one or more alpha olefins selected from propylene, butene-1, heptene-1, 4-methyl pentene-1 and octene-1.
Claim 6
Dependent Claim
22 words
A composition according to claim 3, in which the copolymer of ethylene and alpha-olefins has a melt index of ≧0.1 to ≦40.
Claim 7
Dependent Claim
28 words
A composition according to claim 1, which comprises an admixture of the polyphenylene ether resin and the rubber modified polystyrene in a weight ratio between 20:1 and 1:20.
Claim 8
Dependent Claim
28 words
A composition according to claim 6, which comprises an admixture of the polyphenylene ether resin and the rubber modified polystyrene in a weight ratio between 4:1 and 1:2.
Claim 9
Dependent Claim
30 words
A composition according to claim 1, in which the linear low density polyethylene is present in an amount of from 0.5 to 5 parts by weight of the total composition.
Claim 10
Dependent Claim
11 words
A composition according to claim 1, which includes a flame retardant.
Claim 11
Dependent Claim
14 words
A composition according to claim 9, in which the flame retardant is triphenyl phosphate.
References Cited (Backward Citations)
US3306874A
Cited
US3306875A
Cited
US3257357A
Cited
US3257358A
Cited
US3943191A
Cited
US4228046A
Cited
US4166055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |