US4716199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin composition and articles formed therefrom
Assignee: General Electric Co
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Filing: 1986-05-23
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Granted: 1987-12-29
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Expires: 2006-05-23
Abstract
Abstract The multiaxial impact strength of resin compositions which comprise polyphenylene ether and a styrene resin can be improved by adding unsaturated alkenyl aromatic-diene diblock copolymers.
Inventors
- 👤 Roelof van der Meer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:43
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L51/00; C08L51/04; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L53/00; C08L53/02; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
118 words
A thermoplastic resin composition having improved multiaxial impact strength comprising: 100 parts by weight of a resin composition comprising: (a) a polyphenylene ether resin or copolymers thereof; and (b) a styrene resin or copolymers thereof, the ratio of polyphenylene ether to polystyrene being between 1:20 and 4:1; and 1 to 35 parts by weight per 100 parts (a), (b), and (c) of (c) an unsaturated diblock copolymer consisting essentially of 20 to 40 percent by weight of an alkenyl aromatic block and 60 to 80 percent by weight of a diene block, the alkenyl aromatic block having a molecular weight of about 10,000 to 100,000 and the diene block having a molecular weight of about 50,000 to 500,000.
Claim 2
Dependent Claim
118 words
A thermoplastic resin composition having improved multiaxial impact strength comprising: 100 parts by weight of a resin composition comprising: (a) a polyphenylene ether resin or copolymers thereof; and (b) a styrene resin or copolymers thereof, the ratio of polyphenylene ether to polystyrene being between 1:20 and 4:1; and 1 to 35 parts by weight per 100 parts (a), (b), and (c) of (c) an unsaturated diblock copolymer consisting essentially of 20 to 40 percent by weight of an alkenyl aromatic block and 60 to 80 percent by weight of a diene block, the alkenyl aromatic block having a molecular weight of about 10,000 to 100,000 and the diene block having a molecular weight of about 50,000 to 500,000.
Claim 3
Dependent Claim
17 words
A resin composition as in claim 1, wherein said unsaturated diblock copolymer is a styrene-butadiene diblock copolymer.
Claim 4
Dependent Claim
28 words
A resin composition as in claim 1, wherein said unsaturated diblock copolymer comprises 1 to 35 percent by weight based upon the weight of (a), (b) and (c).
References Cited (Backward Citations)
US3960808A
Cited
US4038343A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-28 | 1991-06-29 | 1991-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-28 | 1995-06-29 | 1995-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-28 | 1999-06-29 | 1999-12-29 | $7700.00 | Window Closed / Lapsed |