US5189101A
Expired / Lapsed
US
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Sulfur vulcanized elastomers reinforced with aramid-polydiene copolymers
Assignee: Goodyear Tire and Rubber Co
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Filing: 1990-03-05
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Granted: 1993-02-23
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Expires: 2010-03-05
Abstract
Abstract The present invention relates to sulfur vulcanized elastomers containing aramid-polydiene copolymers. When compounded with the elastomers, the aramid-polydiene copolymers improve the reinforcing nature of the elastomers.
Inventors
- 👤 Donald J. Burlett
- 👤 Richard G. Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:02
CPC Classifications
C; C08; C08L; C08L9/00; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/265; C08L21/00; C08L53/00; C08L75/00; C08L75/04; C08L75/14
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
100 words
A process for reinforcing a sulfur vulcanizable elastomer comprising admixing a sulfur vulcanizable elastomer with from about 0.5 to about 70 parts per hundred parts of elastomer, of a multiblock copolymer of the structural formula: ##STR14## wherein w is n integer of from 1 to 100; y is an integer of from 10 to 500; z is an integer of from 1 to 120; X is: ##STR15## or mixtures thereof; B is: ##STR16## or mixtures thereof; and wherein R is selected from the group consisting of H, Cl or CH 3 ; and wherein said sulfur vulcanizable elastomer comprises polybutadiene.
Claim 2
Dependent Claim
100 words
A process for reinforcing a sulfur vulcanizable elastomer comprising admixing a sulfur vulcanizable elastomer with from about 0.5 to about 70 parts per hundred parts of elastomer, of a multiblock copolymer of the structural formula: ##STR14## wherein w is n integer of from 1 to 100; y is an integer of from 10 to 500; z is an integer of from 1 to 120; X is: ##STR15## or mixtures thereof; B is: ##STR16## or mixtures thereof; and wherein R is selected from the group consisting of H, Cl or CH 3 ; and wherein said sulfur vulcanizable elastomer comprises polybutadiene.
Claim 3
Dependent Claim
18 words
The process of claim 1 wherein from about 10 to about 60 parts of said copolymer is used.
Claim 4
Dependent Claim
33 words
The process of claim 1 wherein w is an integer of from 1 to 25; y is an integer of from 70 to 90; z is an integer of from 4 to 100.
Claim 5
Dependent Claim
12 words
The process of claim 1 wherein X is: ##STR17## or mixtures thereof.
Claim 6
Dependent Claim
9 words
The process of claim 1 where B is: ##STR18##
Claim 7
Dependent Claim
15 words
The process of claim 1 wherein said multiblock copolymer is of the structural formula: ##STR19##
Claim 8
Dependent Claim
89 words
A reinforced vulcanizate comprising: (a) a sulfur vulcanized elastomer comprising polybutadiene, and (b) from about 0.5 to about 70 parts per hundred of elastomer, of a multiblock copolymer of the structural formula: ##STR20## wherein w is an integer of from 1 to 100; y is an integer of from 10 to 500; z is an integer of from 1 to 120; X is: ##STR21## or mixtures thereof; B is: ##STR22## or mixtures thereof; and wherein R is selected from the group consisting of H, Cl or CH 3 .
Claim 9
Dependent Claim
89 words
A reinforced vulcanizate comprising: (a) a sulfur vulcanized elastomer comprising polybutadiene, and (b) from about 0.5 to about 70 parts per hundred of elastomer, of a multiblock copolymer of the structural formula: ##STR20## wherein w is an integer of from 1 to 100; y is an integer of from 10 to 500; z is an integer of from 1 to 120; X is: ##STR21## or mixtures thereof; B is: ##STR22## or mixtures thereof; and wherein R is selected from the group consisting of H, Cl or CH 3 .
Claim 10
Dependent Claim
18 words
The vulcanizate of claim 7 wherein from about 10 to about 60 parts of said copolymer is used.
Claim 11
Dependent Claim
34 words
The vulcanizate of claim 7 wherein w is an integer of from 1 to 25; y is an integer of from 70 to 90; and z is an integer of from 4 to 100.
Claim 12
Dependent Claim
12 words
The vulcanizate of claim 9 wherein X is: ##STR23## or mixtures thereof.
Claim 13
Dependent Claim
8 words
The vulcanizate of claim 7 where B is:
Claim 14
Dependent Claim
15 words
The vulcanizate of claim 7 wherein said multiblock copolymer is of the structural formula: ##STR24##
Claim 15
Dependent Claim
89 words
A vulcanizable rubber stock comprising: (a) a sulfur vulcanizable elastomer comprising polybutadiene; and (b) from about 0.5 to about 70 parts per hundred of elastomer, of a copolymer of the structural formula: ##STR25## wherein w is an integer of from 1 to 100; y is an integer of from 10 to 500; z is an integer of from 1 to 120; X is: ##STR26## or mixtures thereof; B is: ##STR27## or mixtures thereof; and wherein R is selected from the group consisting of H, Cl or CH 3 .
Claim 16
Dependent Claim
89 words
A vulcanizable rubber stock comprising: (a) a sulfur vulcanizable elastomer comprising polybutadiene; and (b) from about 0.5 to about 70 parts per hundred of elastomer, of a copolymer of the structural formula: ##STR25## wherein w is an integer of from 1 to 100; y is an integer of from 10 to 500; z is an integer of from 1 to 120; X is: ##STR26## or mixtures thereof; B is: ##STR27## or mixtures thereof; and wherein R is selected from the group consisting of H, Cl or CH 3 .
Claim 17
Dependent Claim
20 words
The vulcanizable rubber stock of claim 13 wherein from about 10 to about 60 parts of said copolymer is used.
Claim 18
Dependent Claim
36 words
The vulcanizable rubber stock of claim 13 wherein w is an integer of from 1 to 25; y is an integer of from 70 to 90; and z is an integer of from 4 to 100.
Claim 19
Dependent Claim
14 words
The vulcanizable rubber stock of claim 13 wherein X is: ##STR28## or mixtures thereof.
Claim 20
Dependent Claim
17 words
The vulcanizable rubber stock of claim 13 wherein said multiblock copolymer is of the structural formula: ##STR29##
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) | 1996-02-23 | 1996-08-24 | 1997-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-02-23 | 2000-08-24 | 2001-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-02-23 | 2004-08-24 | 2005-02-23 | $7700.00 | Window Closed / Lapsed |