US4208500A
Expired / Lapsed
US
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Acrylic copolymer vulcanizates
Assignee: Mitsuboshi Belting Ltd
•
Filing: 1978-11-15
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Granted: 1980-06-17
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Expires: 1998-11-15
Abstract
Abstract An acrylic copolymer vulcanizate, which is a sulfur-vulcanized product of an acrylic copolymer, the acrylic copolymer being obtained by the radical polymerization of a monomeric mixture consisting essentially of 100 parts by weight of at least one acrylic acid ester of an aliphatic alcohol containing 1 to 8 carbon atoms and about 1 to about 15 parts by weight of a 5-substituted-2-norbornene of the general formula ##STR1## wherein R represents ═CH--CH 2 ).sub. x CH 3 , in which x is 0 to 4, or --CH═CH 2 , in the presence of about 0.05 to about 3.0 parts by weight, per 100 parts by weight of the monomeric mixture, of a sulfur vulcanization accelerator which does not cause degradative chain transfer.
Inventors
- 👤 Tadao Matsuo
- 👤 Satoshi Mashimo
- 👤 Eiichi Takami
- 👤 Kyoichi Mishima
- 👤 Hiroshi Namizashi
- 👤 Etsuji Uenoyama
- 👤 Masanori Kakei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:36
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/34; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1802; C08F2800/00; C08F2800/20
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
97 words
An acrylic copolymer obtained by the radical polymerization of a monomeric mixture consisting essentially of 100 parts by weight of at least one acrylic acid ester of an aliphatic alcohol containing 1 to 8 carbon atoms and about 1 to about 15 parts by weight of a 5-substituted-2-norbornene of the general formula ##STR5## wherein R represents ═CH--CH 2 ) x CH 3 , in which x is 0 to 4, or --CH═CH 2 , in the presence of about 0.1 to about 3.0 parts by weight, per 100 parts by weight of the monomeric mixture, of 2-mercaptobenzothiazole.
Claim 2
Dependent Claim
97 words
An acrylic copolymer obtained by the radical polymerization of a monomeric mixture consisting essentially of 100 parts by weight of at least one acrylic acid ester of an aliphatic alcohol containing 1 to 8 carbon atoms and about 1 to about 15 parts by weight of a 5-substituted-2-norbornene of the general formula ##STR5## wherein R represents ═CH--CH 2 ) x CH 3 , in which x is 0 to 4, or --CH═CH 2 , in the presence of about 0.1 to about 3.0 parts by weight, per 100 parts by weight of the monomeric mixture, of 2-mercaptobenzothiazole.
Claim 3
Dependent Claim
14 words
The acrylic copolymer of claim 1 wherein the acrylic acid ester is ethyl acrylate.
Claim 4
Dependent Claim
14 words
The acrylic copolymer of claim 1 wherein the acrylic acid ester is n-butyl acrylate.
Claim 5
Dependent Claim
26 words
The acrylic copolymer of claim 1 wherein R in the 5-substituted-2-norbornene is ═CH--CH 2 ) x CH 3 , in which x is 0 to 4.
Claim 6
Dependent Claim
15 words
The acrylic copolymer of claim 4 wherein R in the 5-substituted-2-norbornene is ═CH--CH 3 .
Claim 7
Dependent Claim
17 words
The acrylic copolymer of claim 4 wherein R in the 5-substituted-2-norbornene is ═CH--CH 2 --CH 3 .
Claim 8
Dependent Claim
15 words
The acrylic copolymer of claim 1 wherein R in the 5-substituted-2-norbornene is --CH═CH 2 .
Claim 9
Dependent Claim
106 words
An acrylic copolymer obtained by the radical polymerization of a monomeric mixture consisting essentially of 100 parts by weight of at least one acrylic acid ester of an aliphatic alcohol containing 1 to 8 carbon atoms, about 1 to about 15 parts by weight of a 5-substituted-2-norbornene of the general formula ##STR6## wherein R represents ═CH(CH 2 ) x CH 3 , in which x is 0 to 4, or --CH═CH 2 , and not more than 30 parts by weight of acrylonitrile, in the presence of about 0.1 to about 3.0 parts by weight, per 100 parts by weight of the monomeric mixture, of 2-mercaptobenzothiazole.
Claim 10
Dependent Claim
106 words
An acrylic copolymer obtained by the radical polymerization of a monomeric mixture consisting essentially of 100 parts by weight of at least one acrylic acid ester of an aliphatic alcohol containing 1 to 8 carbon atoms, about 1 to about 15 parts by weight of a 5-substituted-2-norbornene of the general formula ##STR6## wherein R represents ═CH(CH 2 ) x CH 3 , in which x is 0 to 4, or --CH═CH 2 , and not more than 30 parts by weight of acrylonitrile, in the presence of about 0.1 to about 3.0 parts by weight, per 100 parts by weight of the monomeric mixture, of 2-mercaptobenzothiazole.
Claim 11
Dependent Claim
14 words
The acrylic copolymer of claim 8 wherein the acrylic acid ester is ethyl acrylate.
Claim 12
Dependent Claim
14 words
The acrylic copolymer of claim 8 wherein the acrylic acid ester is n-butyl acrylate.
Claim 13
Dependent Claim
26 words
The acrylic copolymer of claim 8 wherein R in the 5-substituted-2-norbornene is ═CH(CH 2 ) x CH 3 , in which x is 0 to 4.
Claim 14
Dependent Claim
15 words
The acrylic copolymer of claim 11 wherein R in the 5-substituted-2-norbornene is ═CH--CH 3 .
Claim 15
Dependent Claim
17 words
The acrylic copolymer of claim 11 wherein R in the 5-substituted-2-norbornene is ═CH--CH 2 --CH 3 .
Claim 16
Dependent Claim
15 words
The acrylic copolymer of claim 8 wherein R in the 5-substituted-2-norbornene is --CH═CH 2 .
Claim 17
Dependent Claim
120 words
An acrylic copolymer obtained by the radical polymerization of a monomeric mixture consisting essentially of 100 parts by weight of at least one acrylic acid ester of an aliphatic alcohl containing 1 to 8 carbon atoms, about 1 to about 15 parts by weight of a 5-substituted-2-norbornene of the general formula ##STR7## wherein R represents ═CH--CH 2 ) x CH 3 , in which x is 0 to 4, or --CH═CH 2 , and not more than about 30 parts by weight of an alkyl methacrylate in which the alkyl group contains 1 to 3 carbon atoms, in the presence of about 0.1 to about 3.0 parts by weight, per 100 parts by weight of the monomeric mixture, of 2-mercaptobenzothiazole.
Claim 18
Dependent Claim
120 words
An acrylic copolymer obtained by the radical polymerization of a monomeric mixture consisting essentially of 100 parts by weight of at least one acrylic acid ester of an aliphatic alcohl containing 1 to 8 carbon atoms, about 1 to about 15 parts by weight of a 5-substituted-2-norbornene of the general formula ##STR7## wherein R represents ═CH--CH 2 ) x CH 3 , in which x is 0 to 4, or --CH═CH 2 , and not more than about 30 parts by weight of an alkyl methacrylate in which the alkyl group contains 1 to 3 carbon atoms, in the presence of about 0.1 to about 3.0 parts by weight, per 100 parts by weight of the monomeric mixture, of 2-mercaptobenzothiazole.
Claim 19
Dependent Claim
14 words
The acrylic copolymer of claim 15 wherein the acrylic acid ester is ethyl acrylate.
Claim 20
Dependent Claim
14 words
The acrylic copolymer of claim 15 wherein the acrylic acid ester is n-butyl acrylate.
Claim 21
Dependent Claim
26 words
The acrylic copolymer of claim 15 wherein R in the 5-substituted-2-norbornene is ═CH--CH 2 ) x CH 3 , in which x is 0 to 4.
Claim 22
Dependent Claim
15 words
The acrylic copolymer of claim 18 wherein R in the 5-substituted-2-norbornene is ═CH--CH 3 .
Claim 23
Dependent Claim
17 words
The acrylic copolymer of claim 18 wherein R in the 5-substituted-2-norbornene is ═CH--CH 2 --CH 3 .
Claim 24
Dependent Claim
15 words
The acrylic copolymer of claim 15 wherein R in the 5-substituted-2-norbornene is --CH═CH 2 .
Claim 25
Dependent Claim
13 words
The acrylic copolymer of claim 15 wherein the alkyl methacrylate is methyl methacrylate.
Claim 26
Dependent Claim
13 words
The acrylic copolymer of claim 15 wherein the alkyl methacrylate is ethyl methacrylate.
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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) | 1983-06-17 | 1983-12-17 | 1984-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-17 | 1987-12-17 | 1988-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-17 | 1991-12-17 | 1992-06-17 | $7700.00 | Window Closed / Lapsed |