US3903049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation resistant sulfur curable rubbery polymers
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1974-01-30
•
Granted: 1975-09-02
•
Expires: 1994-01-30
Abstract
Abstract An oxidation resistant polymeric composition comprising the reaction product of some carbon-to-carbon double bond unsaturated polymers and a 1,3-dipolar compound corresponding to the general formula wherein R is selected from various alkyl radicals, aromatic radicals, cycloalkyl radicals, phenyl radicals and substituted phenyl radicals.
Inventors
- 👤 William M Saltman
- 👤 Melvin Auerbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:17
CPC Classifications
C; C07; C07C; C07C291/00; C07C291/02; C08; C08C; C08C19/00; C08C19/22
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
45 words
AN OXIDATION RESISTANT POLYMERIC COMPOSITION COMPRISING THE REACTION PRODUCT OF (A) A SULFUR-CURABLE RUBBERY POLYMER HAVING CARBON-TO-CARBON DOUBLE BOND UNSATURATION IN THE POLYMER CHAIN SELECTED FROM THE GROUP CONSISING OF HOMOPOLYMERS AND COPOLYMERS OF CONJUGATED DIOLEFINS, AND(B) A 1,3-DIPOLAR COMPOUND CORRESPONDING TO THE GENERAL FORMULA
Claim 2
Dependent Claim
45 words
AN OXIDATION RESISTANT POLYMERIC COMPOSITION COMPRISING THE REACTION PRODUCT OF (A) A SULFUR-CURABLE RUBBERY POLYMER HAVING CARBON-TO-CARBON DOUBLE BOND UNSATURATION IN THE POLYMER CHAIN SELECTED FROM THE GROUP CONSISING OF HOMOPOLYMERS AND COPOLYMERS OF CONJUGATED DIOLEFINS, AND(B) A 1,3-DIPOLAR COMPOUND CORRESPONDING TO THE GENERAL FORMULA
Claim 3
Dependent Claim
71 words
An oxidation resistant polymeric composition comprising the reaction product of (A) a sulfur-curable rubbery polymer having carbon-to-carbon double bond unsaturation in or pendant from the polymer chain selected from the group consisting of homopolymers and copolymers of conjugated diolefins, and (B) a 1,3-dipolar compound selected from the group consisting of 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-naphthyl nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-phenyl nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-butyl nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-(2-bromohexyl) nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-cyclohexyl nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-(4-nitrophenyl) nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-(3-ethyl phenyl) nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-tolyl nitrone, and 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-(2-ethoxy phenyl) nitrone.
Claim 4
Dependent Claim
71 words
An oxidation resistant polymeric composition comprising the reaction product of (A) a sulfur-curable rubbery polymer having carbon-to-carbon double bond unsaturation in or pendant from the polymer chain selected from the group consisting of homopolymers and copolymers of conjugated diolefins, and (B) a 1,3-dipolar compound selected from the group consisting of 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-naphthyl nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-phenyl nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-butyl nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-(2-bromohexyl) nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-cyclohexyl nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-(4-nitrophenyl) nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-(3-ethyl phenyl) nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-tolyl nitrone, and 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-(2-ethoxy phenyl) nitrone.
Claim 5
Dependent Claim
40 words
An oxidation resistant polymeric composition comprising the reaction product of polybutadiene and a 1,3-dipolar compound selected from the group consisting of 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-naphthyl nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-butyl nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-(2-bromohexyl) nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-cyclohexyl nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-(4-nitrophenyl) nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-(3-ethyl phenyl) nitrone, 1-3,5-di-t-butyl-4-hydroxyphenyl)-N-tolyl nitrone, and 1-3,5-di-t-butyl-4-hydroxyphenyl)-N-(2-ethoxy phenyl) nitrone.
Claim 6
Dependent Claim
40 words
An oxidation resistant polymeric composition comprising the reaction product of polybutadiene and a 1,3-dipolar compound selected from the group consisting of 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-naphthyl nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-butyl nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-(2-bromohexyl) nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-cyclohexyl nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-(4-nitrophenyl) nitrone, 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-(3-ethyl phenyl) nitrone, 1-3,5-di-t-butyl-4-hydroxyphenyl)-N-tolyl nitrone, and 1-3,5-di-t-butyl-4-hydroxyphenyl)-N-(2-ethoxy phenyl) nitrone.
Claim 7
Dependent Claim
14 words
An oxidation resistant polymeric composition comprising the reaction product of polybutadiene and 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-phenyl nitrone.
Claim 8
Dependent Claim
14 words
An oxidation resistant polymeric composition comprising the reaction product of polybutadiene and 1-(3,5-di-t-butyl-4-hydroxyphenyl)-N-phenyl nitrone.
References Cited (Backward Citations)
US3629197A
Cited
US3767628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-01 | 1979-03-03 | 1979-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-01 | 1983-03-03 | 1983-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-01 | 1987-03-03 | 1987-09-02 | $7700.00 | Window Closed / Lapsed |