US4304714A
Expired / Lapsed
US
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Polyfunctional phenolic oxamide antioxidants
Assignee: Uniroyal Chemical Co Inc
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Filing: 1979-05-30
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Granted: 1981-12-08
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Expires: 1999-05-30
Abstract
Abstract Novel phenolic oxamide antioxidants for protecting organic materials such as synthetic and natural rubbers, petroleum products, and plastics from oxidative degradation.
Inventors
- 👤 Edward L. Wheeler
- 👤 Elmar H. Jancis
- 👤 Richard A. Gencarelli
- 👤 Franklin H. Barrows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:15
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/35; C07; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/10; C07D263/14; C08K5/0008; C08K5/005; C09; C09K; C09K15/00; C09K15/04; C09K15/30
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
39 words
A compound having the structural formula: ##STR2## wherein A is a branched C 3 -C 7 alkylene, m is 0, 1 or 2, n is an integer from 1 to 12, e has a value of 2 or 3.
Claim 2
Dependent Claim
39 words
A compound having the structural formula: ##STR2## wherein A is a branched C 3 -C 7 alkylene, m is 0, 1 or 2, n is an integer from 1 to 12, e has a value of 2 or 3.
Claim 3
Dependent Claim
14 words
A compound according to claim 7 wherein m is 2 and n is 4.
Claim 4
Dependent Claim
3 words
N,N 1 -oxalyldiamidobis(2-methyltrimethylenebis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate].
Claim 5
Dependent Claim
3 words
N,N 1 -oxalyldiamidobis(2-methyltrimethylenebis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate].
Claim 6
Dependent Claim
4 words
N,N 1 -oxalyldiamidobis(isobutanetriyltris [3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]).
Claim 7
Dependent Claim
4 words
N,N 1 -oxalyldiamidobis(isobutanetriyltris [3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]).
Claim 8
Dependent Claim
27 words
A composition comprising an organic material subject to oxidative degradation and an oxidative degradation inhibiting amount of a compound according to claim 1, 2, 3 or 4.
Claim 9
Dependent Claim
32 words
A method of inhibiting the oxidative degradation of an organic material comprising adding to said material an oxidative degradation inhibiting amount of a compound according to claim 1, 2, 3 or 4.
References Cited (Backward Citations)
US4145556A
Cited
US4154723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-07 | 1985-06-08 | 1985-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-07 | 1989-06-08 | 1989-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-07 | 1993-06-08 | 1993-12-08 | $7700.00 | Window Closed / Lapsed |