US4968752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ionomer composition
Assignee: Dow Mitsui Polychemicals Co Ltd
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Filing: 1990-01-29
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Granted: 1990-11-06
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Expires: 2010-01-29
Abstract
Abstract Proposed herein is an ionomer composition which comprises a reaction product of from 90 to 99.5% by weight of an ethylene copolymer-type ionomer (A) with from 0.5 to 10% by weight of an olefin copolymer (B) having epoxy groups in its side chains, and from 5 to 200 parts by weight, based on 100 parts by weight of said reaction product, of an olefin-type thermoplastic elastomer (C). The proposed ionomer composition is excellent in scratch resistance and flexibility and exhibits a reduced "luster reappearance".
Inventors
- 👤 Manabu Kawamoto
- 👤 Yasuhisa Hosoai
- 👤 Eisaku Hirasawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:36
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0869; C08L23/0876; C08L23/0807; C08L23/0815; C08L23/0884; C08L63/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
95 words
An ionomer composition which comprises a reaction product of from 90 to 99.5% by weight of an ethylene copolymer ionomer (A) comprising ethylene units and unsaturated carboxylic acid salt units with from 0.5 to 10% by weight of an olefin copolymer (B) having epoxy groups in its side chains, and from 5 to 200 parts by weight, based on 100 parts by weight of said reaction product, of an olefin thermoplastic elastomer (C) comprising an ethylene α-olefin copolymer rubber (a) and a polyolefin resin (b), at least one of (a) and (b) being partly cross-linked.
Claim 2
Dependent Claim
95 words
An ionomer composition which comprises a reaction product of from 90 to 99.5% by weight of an ethylene copolymer ionomer (A) comprising ethylene units and unsaturated carboxylic acid salt units with from 0.5 to 10% by weight of an olefin copolymer (B) having epoxy groups in its side chains, and from 5 to 200 parts by weight, based on 100 parts by weight of said reaction product, of an olefin thermoplastic elastomer (C) comprising an ethylene α-olefin copolymer rubber (a) and a polyolefin resin (b), at least one of (a) and (b) being partly cross-linked.
Claim 3
Dependent Claim
53 words
The polymer composition according to claim 1 wherein said ethylene copolymer ionomer (A) is obtained by neutralizing from 10 to 90% of carboxylic groups of an ethylene copolymer comprising ethylene units, unsaturated carboxylic acid units and optionally unsaturated carboxylic acid ester units with metallic ions having a valency of from 1 to 3.
Claim 4
Dependent Claim
46 words
The polymer composition according to claim 1 wherein said olefin copolymer (B) having epoxy groups in its side chains is a copolymer of at least one α-olefin with at least one ethylenically unsaturated glycidyl compound selected from glycidyl acrylate, glycidyl methacrylate and ethylenically unsaturated glycidyl ethers.
Claim 5
Dependent Claim
146 words
The polymer composition according to claim 1 wherein said olefin thermoplastic elastomer (C) comprises: [I] from 100 to 30 parts by weight of a partly cross-linked rubber composition obtained by dynamic heat treatment of a mixture comprising: (a) from 20 to 95 parts by weight of an ethylene-α-olefin copolymer rubber, (b) from 5 to 80 parts by weight of a polyolefin resin, the total weight of the (a)+(b) being 100 parts by weight, and from 5 to 80 parts by weight of at least one component selected from (c) peroxide-noncrosslinkable hydrocarbon rubbers and (d) mineral oil softeners in the presence of a crosslinking agent, and [II] from 0 to 70 parts by weight of a polyolefin resin, the total weight of (b) and [II] in the elastomer (C) being from 5 to 80 parts by weight based on 100 parts by weight of the elastomer (C).
References Cited (Backward Citations)
US4554316A
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JPS6136344A
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JPS6136347A
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JPS62141019A
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US4898911A
Cited
JPS649254A
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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) | 1993-11-05 | 1994-05-07 | 1994-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-05 | 1998-05-07 | 1998-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-05 | 2002-05-07 | 2002-11-06 | $7700.00 | Window Closed / Lapsed |