Patent US4985495A successfully refreshed from Google Patents.
US4985495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin composition
Assignee: Mitsubishi Chemical Corp
•
Filing: 1988-12-23
•
Granted: 1991-01-15
•
Expires: 2008-12-23
Abstract
Abstract Disclosed is a polymer alloy consisting essentially of a composition of a polyphenylene ether, a crystalline propylene resin, and an alkenyl aromatic monomer modified propylene-dialkenylbenzene compound copolymer. The composition excels in heat resistance and resistance to oils.
Inventors
- 👤 Takeyoshi Nishio
- 👤 Shinichi Yamauchi
- 👤 Yusuke Arashiro
- 👤 Kenyu Ohno
- 👤 Masuzo Yokoyama
- 👤 Hiroshi Nakano
- 👤 Hiroshi Ohmori
- 👤 Junji Mayumi
- 👤 Michiharu Kihira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:00
CPC Classifications
C; C08; C08L; C08L53/00; C08L53/02; C08L53/025; C08L23/00; C08L23/02; C08L23/10; C08L23/14; C08L23/142; C08L51/00; C08L51/003; C08L51/06; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L2205/00; C08L2205/03; C08L23/16; C08L25/00; C08L25/02; C08L25/04; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
121 words
A resin composition consisting essentially of the following components (a), (b) and (c): (a) 30 to 70 parts by weight of a resin comprising 40 to 100 wt% of a polyphenylene ether resin and 0 to 60 wt% of a styrene resin; (b) 30 to 70 parts by weight of a crystalline propylene resin; and (c) 1 to 40 parts by weight of a modified propylene-dialkenylbenzene compound copolymer with respect to a total of 100 parts by weight of said components (a) and (b) which is polymerized by using a Ziegler-Natta catalyst and obtained by subjecting an alkenyl aromatic monomer to copolymerization with a copolymer whose dialkenylbenzene compound content is 0.001 to 10 wt% in the presence of a polymerization initiator.
Claim 2
Dependent Claim
121 words
A resin composition consisting essentially of the following components (a), (b) and (c): (a) 30 to 70 parts by weight of a resin comprising 40 to 100 wt% of a polyphenylene ether resin and 0 to 60 wt% of a styrene resin; (b) 30 to 70 parts by weight of a crystalline propylene resin; and (c) 1 to 40 parts by weight of a modified propylene-dialkenylbenzene compound copolymer with respect to a total of 100 parts by weight of said components (a) and (b) which is polymerized by using a Ziegler-Natta catalyst and obtained by subjecting an alkenyl aromatic monomer to copolymerization with a copolymer whose dialkenylbenzene compound content is 0.001 to 10 wt% in the presence of a polymerization initiator.
Claim 3
Dependent Claim
54 words
A composition according to claim 1, wherein said component (a) is 40 to 60 parts by weight, said component (b) is 40 to 60 parts by weight, and said component (c) is 5 to 30 parts by weight with respect to a total of 100 parts by weight of said components (a) and (b).
Claim 4
Dependent Claim
54 words
A composition according to claim 1, wherein said component (a) is 40 to 60 parts by weight, said component (b) is 40 to 60 parts by weight, and said component (c) is 10 to 20 parts by weight with respect to a total of 100 parts by weight of said components (a) and (b).
Claim 5
Dependent Claim
13 words
A composition according to claim 1, wherein said crystalline propylene resin is polypropylene.
Claim 6
Dependent Claim
27 words
A composition according to claim 1, wherein said crystalline propylene resin is a propylene-ethylene copolymer in which propylene is a component having a majority of quantity (weight).
Claim 7
Dependent Claim
24 words
A composition according to claim 5, wherein said crystalline propylene resin is a propylene-ethylene block copolymer whose propylene content is 99 to 70 wt%.
Claim 8
Dependent Claim
36 words
A composition according to claim 1, wherein said crystalline propylene resin is a copolymer of propylene and α-olefin having 4 to 8 carbon atoms in which propylene is a component having a majority of quantity (mol).
Claim 9
Dependent Claim
22 words
A composition according to claim 7, wherein said crystalline propylene resin is a propylene-ethylene copolymer containing 99.9 to 80 wt% of propylene.
Claim 10
Dependent Claim
18 words
A composition according to claim 1, wherein said propylene-dialkenylbenzene compound copolymer contains 0.05 to 5 wt% dialkenyl benzene.
Claim 11
Dependent Claim
42 words
A composition according to claim 1, wherein said component (c) is one in which a polymer of said alkenyl aromatic monomers bonded with said propylene-dialkenylbenzene compound copolymer is 1 to 200 parts with respect to 100 parts of said propylene-dialkenylbenzene compound copolymer.
Claim 12
Dependent Claim
26 words
A composition according to claim 1, wherein the amount of a polymer of said alkenyl aromatic monomers in said component (c) is 5 to 90 wt%.
Claim 13
Dependent Claim
142 words
A resin composition consisting essentially of: (a) 30 to 70 parts by weight of a resin comprising 40 to 100 wt% of a polyphenylene ether resin and 0 to 60 wt% of a styrene resin; (b) 30 to 70 parts by weight of a crystalline propylene resin; (c) 1 to 40 parts by weight of a modified propylene-dialkenylbenzene compound copolymer with respect to a total of 100 parts by weight of said components (a) and (b), which is polymerized by using a Ziegler-Natta catalyst and obtained by subjecting an alkenyl aromatic monomer to copolymerization with a copolymer whose dialkenylbenzene compound content is 0.001 to 10 wt% in the presence of a polymerization initiator; and (d) 1 to 40 parts by weight of a hydrogenated block copolymer comprising an alkenyl aromatic compound polymer block A and a conjugated diene compound polymer block B.
Claim 14
Dependent Claim
142 words
A resin composition consisting essentially of: (a) 30 to 70 parts by weight of a resin comprising 40 to 100 wt% of a polyphenylene ether resin and 0 to 60 wt% of a styrene resin; (b) 30 to 70 parts by weight of a crystalline propylene resin; (c) 1 to 40 parts by weight of a modified propylene-dialkenylbenzene compound copolymer with respect to a total of 100 parts by weight of said components (a) and (b), which is polymerized by using a Ziegler-Natta catalyst and obtained by subjecting an alkenyl aromatic monomer to copolymerization with a copolymer whose dialkenylbenzene compound content is 0.001 to 10 wt% in the presence of a polymerization initiator; and (d) 1 to 40 parts by weight of a hydrogenated block copolymer comprising an alkenyl aromatic compound polymer block A and a conjugated diene compound polymer block B.
References Cited (Backward Citations)
JPS4932660A
Cited
JPS4975663A
Cited
JPS58141239A
Cited
US4460743A
Cited
US4647594A
Cited
US4801645A
Cited
US4914153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-01-14 | 1994-07-16 | 1995-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-14 | 1998-07-16 | 1999-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-14 | 2002-07-16 | 2003-01-15 | $7700.00 | Window Closed / Lapsed |