US4444934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat resistant thermoplastics resin composition excellent in processing flowability
Assignee: Asahi Kasei Corp
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Filing: 1982-12-01
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Granted: 1984-04-24
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Expires: 2002-12-01
Abstract
Abstract A heat resistant thermoplastic resin composition improved in working fluidity while keeping the characteristics of aromatic polyether resins such as heat resistance and solvent cracking resistance. This composition comprises 100 parts by weight of an aromatic polyether resin or a mixed resin of an aromatic polyether resin and a styrene resin and 0.1 to 10 parts by weight of a polyhydric alcohol fatty acid ester having at least one --OH group. This ester preferably has a molecular weight of at least 200.
Inventors
- 👤 Hideo Kasahara
- 👤 Yukihisa Mizutani
- 👤 Kunio Fukuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:15
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103; C08L67/00; C08L69/00; C08L77/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
72 words
A thermoplastic resin composition which comprises (a) 100 parts by weight of a member selected from the group of an aromatic polyether and mixed resin comprising 20 to 80% by weight of an aromatic polyether and 80 to 20% by weight of a styrene resin and (b) 0.1 to 10 parts by weight of a compound which is a fatty acid ester of polyhydric alcohol which has at least one --OH group.
Claim 2
Dependent Claim
72 words
A thermoplastic resin composition which comprises (a) 100 parts by weight of a member selected from the group of an aromatic polyether and mixed resin comprising 20 to 80% by weight of an aromatic polyether and 80 to 20% by weight of a styrene resin and (b) 0.1 to 10 parts by weight of a compound which is a fatty acid ester of polyhydric alcohol which has at least one --OH group.
Claim 3
Dependent Claim
19 words
A thermoplastic resin composition according to claim 1 wherein the compound has a molecular weight of at least 200.
Claim 4
Dependent Claim
18 words
A thermoplastic resin composition according to claim 1 wherein the compound is a neopentyl polyol fatty acid ester.
Claim 5
Dependent Claim
22 words
A thermoplastic resin composition according to claim 1 wherein the compound is a glycerine fatty acid ester or sorbitan fatty acid ester.
Claim 6
Dependent Claim
15 words
A thermoplastic resin composition according to claim 1 wherein the composition includes a reinforcing filler.
Claim 7
Dependent Claim
14 words
A thermoplastic resin composition according to claim 1 wherein the composition includes a flame-retardant.
Claim 8
Dependent Claim
15 words
A thermoplastic resin composition according to claim 1, wherein the styrene resin is impact-resistant polystyrene.
References Cited (Backward Citations)
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US3792121A
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JPS495220A
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JPS4911949A
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JPS4923845A
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JPS4955752A
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JPS5290559A
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JPS5290596A
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JPS5341341A
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US4224209A
Cited
JPS55118956A
Cited
US4363891A
Cited
US4384063A
Cited
US4379197A
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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) | 1987-04-24 | 1987-10-24 | 1988-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-24 | 1991-10-24 | 1992-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-24 | 1995-10-24 | 1996-04-24 | $7700.00 | Window Closed / Lapsed |