Patent US4028316A successfully refreshed from Google Patents.
US4028316A
Expired / Lapsed
US
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Vulcanized acrylate-ethylidene norbornene polymers
Assignee: Mitsuboshi Belting Ltd
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Filing: 1976-02-17
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Granted: 1977-06-07
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Expires: 1996-02-17
Abstract
Abstract An acrylic copolymer composition capable of being vulcanized with sulfur comprising the radical polymerization product of (1) a monomer mixture comprising an acrylic acid ester and ethylidene norbornene, (2) a monomer mixture comprising an acrylic acid ester, ethylidene norbornene and acrylonitrile, (3) a monomer mixture comprising an acrylic acid ester and vinyl norbornene, or (4) a monomer mixture comprising an acrylic acid ester, vinyl norbornene and at least one unsaturated compound selected from the group consisting of monovinyl compounds, monovinylidene compounds and monovinylene compounds.
Inventors
- 👤 Tadao Matsuo
- 👤 Minoru Miura
- 👤 Satoshi Mashimo
- 👤 Masanori Kakei
- 👤 Kyoichi Mishima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:59
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/06; C08K5/00; C08K5/36
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
64 words
An acrylic copolymer vulcanizate comprising an acrylic copolymer composition consisting essentially of the radical polymerization product of a monomer mixture consisting of about 85 to 99 parts by weight of an acrylic acid ester of an aliphatic alcohol having 1 to 8 carbon atoms or a mixture of said alcohols and about 1 to 15 parts by weight of ethylidene norbornene vulcanized with sulfur.
Claim 2
Dependent Claim
64 words
An acrylic copolymer vulcanizate comprising an acrylic copolymer composition consisting essentially of the radical polymerization product of a monomer mixture consisting of about 85 to 99 parts by weight of an acrylic acid ester of an aliphatic alcohol having 1 to 8 carbon atoms or a mixture of said alcohols and about 1 to 15 parts by weight of ethylidene norbornene vulcanized with sulfur.
Claim 3
Dependent Claim
26 words
The acrylic copolymer vulcanizate as set forth in claim 1, wherein the aliphatic alcohol comprises a mixture of aliphatic alcohols having 1 to 8 carbon atoms.
Claim 4
Dependent Claim
24 words
The acrylic copolymer vulcanizate as set forth in claim 1, wherein the acrylic acid ester comprises a mixture of ethyl acrylate and n-butyl acrylate.
Claim 5
Dependent Claim
18 words
The acrylic copolymer vulcanizate as set forth in claim 1, wherein the acrylic acid ester is ethyl acrylate.
Claim 6
Dependent Claim
18 words
The acrylic copolymer vulcanizate as set forth in claim 1, wherein the acrylic acid ester is n-butyl acrylate.
Claim 7
Dependent Claim
18 words
The acrylic copolymer vulcanizate as set forth in claim 1, wherein the acrylic acid ester is octyl acrylate.
Claim 8
Dependent Claim
75 words
An acrylic copolymer vulcanizate comprising an acrylic copolymer composition consisting essentially of the radical polymerization product of a monomer mixture consisting of about 55 to about 99 parts by weight of an an acrylic acid ester of an aliphatic alcohol having 1 to 8 carbon atoms or a mixture of said alcohols, about 1 to 15 parts by weight of ethylidene norbornene and up to about 30 parts by weight of acrylonitrile vulcanized with sulfur.
Claim 9
Dependent Claim
75 words
An acrylic copolymer vulcanizate comprising an acrylic copolymer composition consisting essentially of the radical polymerization product of a monomer mixture consisting of about 55 to about 99 parts by weight of an an acrylic acid ester of an aliphatic alcohol having 1 to 8 carbon atoms or a mixture of said alcohols, about 1 to 15 parts by weight of ethylidene norbornene and up to about 30 parts by weight of acrylonitrile vulcanized with sulfur.
Claim 10
Dependent Claim
26 words
The acrylic copolymer vulcanizate as set forth in claim 7, wherein the aliphatic alcohol comprises a mixture of aliphatic alcohols having 1 to 8 carbon atoms.
Claim 11
Dependent Claim
24 words
The acrylic copolymer vulcanizate as set forth in claim 7, wherein the acrylic acid ester comprises a mixture of ethyl acrylate and n-butyl acrylate.
Claim 12
Dependent Claim
18 words
The acrylic copolymer vulcanizate as set forth in claim 7, wherein the acrylic acid ester is ethyl acrylate.
Claim 13
Dependent Claim
18 words
The acrylic copolymer vulcanizate as set forth in claim 7, wherein the acrylic acid ester is n-butyl acrylate.
Claim 14
Dependent Claim
18 words
The acrylic copolymer vulcanizate as set forth in claim 7, wherein the acrylic acid ester is octyl acrylate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |