US4801645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic resin composition
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1987-03-18
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Granted: 1989-01-31
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Expires: 2007-03-18
Abstract
Abstract Thermoplastic resin composition is provided which comprises epoxy compound in a resin made from polyphenylene ether and modified-polyolefin with or without polypropylene. The composition is useful for preparing shaped articles, sheet or film and is superior in heat resistance, mechanical properties and processability.
Inventors
- 👤 Taichi Nishio
- 👤 Takashi Sanada
- 👤 Takayuki Okada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:31
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/08; C08L23/00; C08L23/02; C08L23/10; C08L23/12; C08L63/00; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L2205/00; C08L2205/03; C08L2205/035; C08L23/04; C08L23/08; C08L23/0846; C08L23/0869; C08L23/0884; C08L51/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
78 words
A thermoplastic resin composition comprising: A. 100 parts by weight of a composition including 1. 5-95% by weight of a polyphenylene ether being an oxidation polymerization product of at least one phenol compound of formula ##STR6## wherein R 1 , R 2 , R 3 , r4, and R 5 each represents a hydrogen atom, a halogen atom, or a substituted or unsubstituted hydrocarbon residue, wherein at least one of R 1 -R 5 is hydrogen; and 2.
Claim 2
Dependent Claim
78 words
A thermoplastic resin composition comprising: A. 100 parts by weight of a composition including 1. 5-95% by weight of a polyphenylene ether being an oxidation polymerization product of at least one phenol compound of formula ##STR6## wherein R 1 , R 2 , R 3 , r4, and R 5 each represents a hydrogen atom, a halogen atom, or a substituted or unsubstituted hydrocarbon residue, wherein at least one of R 1 -R 5 is hydrogen; and 2.
Claim 3
Dependent Claim
81 words
95-5% by weight of a mixture of 1-99% by weight polypropylene and 99-1% by weight modified polypropylene, said modified polypropylene having been obtained by grafting at least onecomonomer selected from the group consisting of an oxazoline and a compound having a group selected from a carboxyl, an acid anhydride, an acid amide, an amino and a hydroxyl; and B. 0.01-50 parts by weight of an epoxy compound selected form unsaturated epoxy compound/ethylene copolymer, and unsaturated epoxy compound/ethylene/ethylenically unsaturated compound copolymer, wherein
Claim 4
Dependent Claim
81 words
95-5% by weight of a mixture of 1-99% by weight polypropylene and 99-1% by weight modified polypropylene, said modified polypropylene having been obtained by grafting at least onecomonomer selected from the group consisting of an oxazoline and a compound having a group selected from a carboxyl, an acid anhydride, an acid amide, an amino and a hydroxyl; and B. 0.01-50 parts by weight of an epoxy compound selected form unsaturated epoxy compound/ethylene copolymer, and unsaturated epoxy compound/ethylene/ethylenically unsaturated compound copolymer, wherein
Claim 5
Dependent Claim
42 words
the ethylenically unsaturated compound excludes ethylene. 2. A thermoplastic resin composition according to claim 1 wherein the polyphenylene ether (a) is homopolymer of 2,6-dimethylphenol or 2,6-diphenylphenol, or copolymer of a large amount of 2,6-dimethylphenol and a small amount of 3-methyl-6-t-butylphenol or 2,3,6-trimethylphenol.
Claim 6
Dependent Claim
21 words
A thermoplastic resin composition according to claim 1 wherein the modified-polyolefin (b) is polyolefin modified with acrylic acid or maleic anhydride.
Claim 7
Dependent Claim
20 words
A thermoplastic resin composition according to claim 1 wherein the composition (A) contains 10-80% by weight of polyphenylene ether (a).
Claim 8
Dependent Claim
20 words
A thermoplastic resin composition according to claim 1 wherein the composition (A) contains 20-70% by weight of polyphenylene ether (a).
Claim 9
Dependent Claim
21 words
A thermoplastic resin composition according to claim 1 wherein an amount of the epoxy compound (B) is 0.01-30 parts by weight.
References Cited (Backward Citations)
GB1403797A
Cited
JPS53141360A
Cited
US4245061A
Cited
JPS5622344A
Cited
US4315086A
Cited
US4338413A
Cited
EP0055473A1
Cited
US4454284A
Cited
US4550130A
Cited
US4456732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-31 | 1992-08-01 | 1993-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-31 | 1996-08-01 | 1997-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-31 | 2000-08-01 | 2001-01-31 | $7700.00 | Window Closed / Lapsed |