US4957966A
Expired / Lapsed
US
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Thermoplastic resin composition
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1988-06-07
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Granted: 1990-09-18
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Expires: 2008-06-07
Abstract
Abstract A novel thermoplastic resin composition comprising a matrix of polyamide resin (E) and a disperse phase of a composition (D), said composition (D) comprising a polyphenylene ether (A), a rubber-like materail (B) and a mutual compatibilizer (C), said polyphenylene ether (A) being obtained from at least one phenol compound represented by the formula: ##STR1## wherein R 1 , R 2 , R 3 , R 4 and R 5 represents a hydrogen atom, a halogen atom or a substituted or unsubstituted hydrocarbon residue, with a proviso that at least one of them is a hydrogen atom, and said polyphenylene ether (A) having a reduced viscosity η sp/c of 0.40-0.58 deciliter/gram, said mutual compatibilizer (C) being compatible or reactive with said polyphenylene ether and reactive with said polyamide resin, and said polyamide resin (E) having a number average molecular weight of 14,000-40,000 and an end amino group content of 50-95 mmole/kg, wherein the thermoplastic resin composition constitutes 1-65 wt. % of said polyphenylene ether (A), 1-20 wt. % of said rubber-like material (B), 0.01-5 wt. % of said mutual compatibilizer (C) and 35-97.99 wt. % of said polyamide resin (E), based on the total weight of said thermoplastic resin composition, and the weight average particle size of said disperse phase is 2 micron or less.
Inventors
- 👤 Taichi Nishio
- 👤 Hiroomi Abe
- 👤 Yasurou Suzuki
- 👤 Takashi Sanada
- 👤 Satoru Hosoda
- 👤 Takayuki Okada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:57
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L77/00; C08L75/00; C08L81/00; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
236 words
A thermoplastic resin composition comprising a matrix of polyamide resin (E) and a disperse phase of a composition (D) which is obtained by melting and mixing the composition (D) and the polyamide resin (E), said composition (D) being obtained by melting and mixing a polyphenylene ether (A) together with a rubber-like material (B) and a mutual compatibilizer (C). said polyphenylene ether (A) being obtained by oxidation polymerization of at least one phenol compound represented by the formula: ##STR7## wherein R 1 , R 2 , R 3 , R 4 and R 5 represent a hydrogen atom, a halogen atom or a substituted or unsubstituted hydrocarbon residue, with a proviso that at least one of them is a hydrogen atom, and said polyphenylene ether (A) having a reduced viscosity η sp/c of 0.40-0.58 deciliter/gram, said mutual compatibilizer (C) being reactive with said polyphenylene ether and reactive with said polyamide resin, and said polyamide resin (E) having a number average molecular weight of 14,000-30,000 and an end amino group content of 50-90 mmole/kg, wherein the thermoplastic resin composition constitutes 1-65 wt. % of said polyphenylene ether (A), 1-20 wt. % of said rubber-like material (B), 0.01-5 wt. % of said mutual compatibilizer (C) and 35-97.99 wt. % of said polyamide resin (E), based on the total weight of said thermoplastic resin composition, and the weight average particle size of said disperse phase is 2 microns or less.
Claim 2
Dependent Claim
236 words
A thermoplastic resin composition comprising a matrix of polyamide resin (E) and a disperse phase of a composition (D) which is obtained by melting and mixing the composition (D) and the polyamide resin (E), said composition (D) being obtained by melting and mixing a polyphenylene ether (A) together with a rubber-like material (B) and a mutual compatibilizer (C). said polyphenylene ether (A) being obtained by oxidation polymerization of at least one phenol compound represented by the formula: ##STR7## wherein R 1 , R 2 , R 3 , R 4 and R 5 represent a hydrogen atom, a halogen atom or a substituted or unsubstituted hydrocarbon residue, with a proviso that at least one of them is a hydrogen atom, and said polyphenylene ether (A) having a reduced viscosity η sp/c of 0.40-0.58 deciliter/gram, said mutual compatibilizer (C) being reactive with said polyphenylene ether and reactive with said polyamide resin, and said polyamide resin (E) having a number average molecular weight of 14,000-30,000 and an end amino group content of 50-90 mmole/kg, wherein the thermoplastic resin composition constitutes 1-65 wt. % of said polyphenylene ether (A), 1-20 wt. % of said rubber-like material (B), 0.01-5 wt. % of said mutual compatibilizer (C) and 35-97.99 wt. % of said polyamide resin (E), based on the total weight of said thermoplastic resin composition, and the weight average particle size of said disperse phase is 2 microns or less.
Claim 3
Dependent Claim
69 words
A thermoplastic resin composition according to claim 1 wherein the mutual compatibilizer (C) is at least one compound selected from the compounds which are capable of melting in and grafting to polyphenylene ether and contain in its molecule at least one of carboxyl group, acid anhydride group, acid amide group, imide group, carboxylate ester group, epoxy group, amino group, isocyanate group, a group containing oxazoline ring and hydroxyl group.
Claim 4
Dependent Claim
35 words
A thermoplastic resin composition according to claim 2 which said mutual compatibilizer (C) is maleic anhydride and addition amount of said maleic anhydride is 3% or less by weight based on said polyphenylene ether (A).
Claim 5
Dependent Claim
22 words
A thermoplastic resin composition according to claim 1 wherein the reduced viscosity η sp/c of said polyphenylene ether (A) is 0.45-0.52 deciliter/gram.
Claim 6
Dependent Claim
21 words
A thermoplastic resin composition according to claim 1 wherein said rubber-like material (B) is saturated polyolefine rubber or styrene copolymer rubber.
Claim 7
Dependent Claim
19 words
A thermoplastic resin composition according to claim 5 wherein said saturated polyolefine rubber is maleic anhydride modified ethylene-propylene rubber.
Claim 8
Dependent Claim
23 words
A thermoplastic resin composition according to claim 1 wherein said rubber-like material (B) is styrene-ethylene-butylene-styrene block copolymer rubber or styrene-butadiene-styrene block copolymer rubber.
Claim 9
Dependent Claim
23 words
A thermoplastic resin composition according to claim 1 wherein the weight average particle size of said disperse phase is 1 micron or less.
Claim 10
Dependent Claim
26 words
A thermoplastic resin composition according to claim 3 wherein addition amount of maleic anhydride is 1.5% or less by weight based on said polyphenylene ether (A).
References Cited (Backward Citations)
US3306874A
Cited
US4315086A
Cited
JPS5647431A
Cited
JPS5649753A
Cited
JPS6011966A
Cited
EP0164767A2
Cited
JPS61296061A
Cited
US4600741A
Cited
EP0182163A2
Cited
JPS61120855A
Cited
JPS61204261A
Cited
JPS6281449A
Cited
US4873276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-17 | 1994-03-19 | 1994-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-17 | 1998-03-19 | 1998-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-17 | 2002-03-19 | 2002-09-18 | $7700.00 | Window Closed / Lapsed |