US4614773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel polyphenylene ether resin composition
Assignee: Mitsubishi Gas Chemical Co Inc
•
Filing: 1985-01-09
•
Granted: 1986-09-30
•
Expires: 2005-01-09
Abstract
Abstract A polyphenylene ether resin composition containing (A) a polyphenylene ether resin, (B) an aromatic polyester resin, and (C) a phenoxy resin. The resin composition may further contain (D) an unsaturated carboxylic acid or (E) a vinyl copolymer derived from a styrene compound and an alpha,beta-unsaturated dicarboxylic acid anhydride as comonomer components. The resin composition has excellent mechanical strength, solvent resistance, oil resistance and moldability.
Inventors
- 👤 Akitoshi Sugio
- 👤 Masao Okabe
- 👤 Akikazu Amagai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:55
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
34 words
A polyphenylene ether resin composition comprising (A) a polyphenylene ether resin, (B) an aromatic polyester resin, (C) a phenoxy resin produced by polycondensing a bisphenol with an epihalohydrin, and (D) an unsaturated carboxylic acid.
Claim 2
Dependent Claim
34 words
A polyphenylene ether resin composition comprising (A) a polyphenylene ether resin, (B) an aromatic polyester resin, (C) a phenoxy resin produced by polycondensing a bisphenol with an epihalohydrin, and (D) an unsaturated carboxylic acid.
Claim 3
Dependent Claim
86 words
The composition of claim 1 wherein the polyphenylene ether resin is a phenylene ether homopolymer, a phenylene ether random copolymer or a grafted phenylene ether polymer obtained by grafting an aromatic vinyl compound represented by the following formula ##STR5## wherein R 4 represents a hydrogen atom or a methyl group, Z represents a halogen atom or a lower alkyl group having 1 to 3 carbon atoms, and p is 0 or an integer of 1 to 3, to the homo- or co-polymer of the polyphenylene ether.
Claim 4
Dependent Claim
36 words
The composition of claim 1 wherein the aromatic polyester resin is derived from an aromatic dicarboxylic acid as a dicarboxylic acid component and an aliphatic diol having 2 to 10 carbon atoms as a glycol component.
Claim 5
Dependent Claim
35 words
The composition of claim 1 wherein the total weight of the components (B), (C) and (D) is 5 to 95% by weight based on the total weight of the components (A), (B) (C) and (D).
Claim 6
Dependent Claim
55 words
The composition of claim 4 wherein based on the total weight of the components (B), (C) and (D), the proportion of the component (B) is 10 to 98.5% by weight, the proportion of the component (C) is 1 to 89.5% by weight, and the proportion of the component (D) is 0.5 to 89% by weight.
Claim 7
Dependent Claim
54 words
The composition of claim 1 wherein the bisphenol is composed mainly of recurring units of the formula ##STR6## wherein the X's are identical or different and each represents a hydrogen atom, a lower alkyl group having 1 to 3 carbon atoms, or a halogen atom, and n is a number of at least 20.
Claim 8
Dependent Claim
15 words
The composition of claim 1 wherein the polyphenylene ether resin is a homo or copolymer.
Claim 9
Dependent Claim
66 words
The composition of claim 7 wherein the polyphenylene ether homo or copolymer is obtained by polycondensing one or more monocyclic phenols represented by the following formula ##STR7## wherein R 1 represents a lower alkyl group having 1 to 3 carbon atoms, and R 2 and R 3 , independently from each other, represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.
References Cited (Backward Citations)
US4456736A
Cited
JPS59179556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-29 | 1990-03-31 | 1990-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-29 | 1994-03-31 | 1994-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-29 | 1998-03-31 | 1998-09-30 | $7700.00 | Window Closed / Lapsed |