US3878150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized polybutadiene resins
Assignee: Bridgestone Firestone Inc
•
Filing: 1973-04-16
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Granted: 1975-04-15
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Expires: 1993-04-16
Abstract
Abstract The incorporation of a combination of a hydroxyaryl carboxylic acid or a salt or ester thereof, into a polybutadiene resin greatly enhances the resistance thereof to thermo-oxidative deterioration.
Inventors
- 👤 Jr Delmar F Lohr
- 👤 Edward Leo Kay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:23
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K5/10; C08K5/13; C08K5/134; C08K5/1345
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
25 words
PROCESS OF PRODUCING A RESIN HAVING A HIGH RESISTANCE TO THERMO-OXIDATISE DETERIORATION OF ITS MECHANICAL PROPERTIES, WHICH COMPRISES SUBJECTING TO CURING TEMPERATURES A COMPOSITION CONTAINING
Claim 2
Dependent Claim
25 words
PROCESS OF PRODUCING A RESIN HAVING A HIGH RESISTANCE TO THERMO-OXIDATISE DETERIORATION OF ITS MECHANICAL PROPERTIES, WHICH COMPRISES SUBJECTING TO CURING TEMPERATURES A COMPOSITION CONTAINING
Claim 3
Dependent Claim
13 words
Process according to claim 1, wherein the hydroxyaryl carboxylic acid is 3,5-di-tert.-butyl-4-hydroxybenzoic acid.
Claim 4
Dependent Claim
23 words
Process according to claim 1, wherein the hydroxyaryl carboxylic acid salt is the Mg, Ca, Ba, Zn or Ni salt of 3,5-di-tert.-butyl-4-hydroxybenzoic acid.
Claim 5
Dependent Claim
21 words
Process according to claim 1, wherein the hydroxyaryl carboxylic acid salt is the Mg, Ca or Zn salt of 3,3''-methylenebis(5-methylsalicyliC acid).
Claim 6
Dependent Claim
22 words
Process according to claim 1, wherein the ester of the hydroxyaryl carboxylic acid is the 2,4-di-tert.-butylphenyl ester or the pentaerythritol tetra ester.
Claim 7
Dependent Claim
20 words
A composition curable to a hard resin having enhanced resistance to thermo-oxidatise deterioration of its mechanical properties, which composition comprises
Claim 8
Dependent Claim
20 words
A composition curable to a hard resin having enhanced resistance to thermo-oxidatise deterioration of its mechanical properties, which composition comprises
Claim 9
Dependent Claim
13 words
Composition according to claim 6, wherein the hydroxyaryl carboxylic acid is 3,5-di-tert.-butyl-4-hydroxybenzoic acid.
Claim 10
Dependent Claim
23 words
Composition according to claim 6 wherein the hydroxyaryl carboxylic acid salt is the Mg, Ca, Ba, Zn or Ni salt of 3,5-di-tert.-butyl-4-hydroxybenzoic acid.
Claim 11
Dependent Claim
21 words
Composition according to claim 6 wherein the hydroxyaryl carboxylic acid salt is the Mg, Ca or Zn salt of 3,3''-methylenebis(5-methylsalicylic acid).
Claim 12
Dependent Claim
22 words
Composition according to claim 6 wherein the ester of the hydroxyaryl carboxylic acid is the 2,4-di-tert.-butylphenyl ester or the pentaerythritol tetra ester.
Claim 13
Dependent Claim
15 words
A peroxide-cured resin highly resistant to thermo-oxidatise deterioration of physical properties, said resin containing therein
Claim 14
Dependent Claim
15 words
A peroxide-cured resin highly resistant to thermo-oxidatise deterioration of physical properties, said resin containing therein
Claim 15
Dependent Claim
13 words
Composition according to claim 11, wherein the hydroxyaryl carboxylic acid is 3,5-di-tert.-butyl-4-hydroxybenzoic acid.
Claim 16
Dependent Claim
23 words
Composition according to claim 11, wherein the hydroxyaryl carboxylic acid salt is the Mg, Ca, Ba, Zn or Ni salt of 3,5-di-tert.-butyl-4-hydroxybenzoic acid.
Claim 17
Dependent Claim
21 words
Composition according to claim 11, wherein the hydroxyaryl carboxylic acid salt is the Mg, Ca or Zn salt or 3,3''-methylenebis(5-methylsalicylic acid).
Claim 18
Dependent Claim
22 words
Composition according to claim 11, wherein the ester of the hydroxyaryl carboxylic acid is the 2,4-di-tert.-butylphenyl ester or the pentaerythritol tetra ester.
References Cited (Backward Citations)
US2985617A
Cited
US3027351A
Cited
US3196134A
Cited
US3189630A
Cited
US3681276A
Cited
US3651110A
Cited
US3689450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |