US3678047A
Expired / Lapsed
US
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Alkylhydroxyphenylcarboalkoxy-substituted isocyanurates
Assignee: Goodrich Corp
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Filing: 1970-04-27
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Granted: 1972-07-18
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Expires: 1990-04-27
Abstract
Abstract Compounds containing one or more alkylhydroxyphenyl groups bonded through carboalkoxy linkages to a nitrogen atom of a heterocyclic nucleus containing an imidodicarbonyl GROUP OR AN IMIDODITHIOCARBONYL GROUP HAVE BEEN PREPARED AND ARE EXTREMELY EFFECTIVE STABILIZERS AGAINST THE DELETERIOUS EFFECTS OF OXYGEN, HEAT AND LIGHT FOR ORGANIC MATERIALS. The stability of polymeric compositions such as Alpha -olefin polymers and copolymers, acetal polymers, polyamides, polyesters and polyurethanes is markedly increased by the addition of small amounts of the present compounds thereto.
Inventors
- 👤 George Kletecka
- 👤 Peter D Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:07
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C07C; C07C59/00; C07C59/40; C07C59/42; C07C59/52; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3415; C08K5/3417; C08K5/3467; C08K5/3477; C08K5/36; C08K5/39; C09; C09K; C09K15/00; C09K15/04; C09K15/30; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/129; C10M2207/22; C10M2207/40; C10M2207/402; C10M2207/404; C10M2215/00; C10M2215/086; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/28; C10M2215/30; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/09; C10N; C10N2010/00; C10N2010/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
12 words
An alkylhydroxyphenylcarboalkoxy-substituted nitrogen heterocycle of claim 1 wherein R'' has the formula
Claim 2
Dependent Claim
37 words
An alkylhydroxyphenylcarboalkoxy-substituted nitrogen heterocycle of claim 2 wherein R1 is a tertiary alkyl group containing from four to eight carbon atoms, R2 is an alkyl group containing from one to eight carbon atoms and R3 is hydrogen.
Claim 3
Dependent Claim
31 words
An alkylhydroxyphenylcarboalkoxy-substituted nitrogen heterocycle of claim 3 wherein R2 is a tertiary alkyl group containing from four to eight carbon atoms and n'' and m'' are integers from 1 to 3.
Claim 4
Dependent Claim
9 words
An alkylhydroxyphenylcarboalkoxy-substituted nitrogen heterocycle of claim 2 wherein R''=R''''=r''''''.
Claim 5
Dependent Claim
35 words
An alkylhydroxyphenylcarboalkoxy-substituted nitrogen heterocycle of claim 5 wherein n'' and m'' are integers from 1 to 3, R1 and R2 are tertiary alkyl groups containing from 4 to 8 carbon atoms and R3 is hydrogen.
Claim 6
Dependent Claim
11 words
The alkylhydroxyphenylcarboalkoxy-substituted nitrogen heterocycle of claim 6 which is 2,2'',2''''-tris(3(3,5-di-t-butyl-4 -hydroxyphenyl)propionyloxy)ethylisocyanurate.
References Cited (Backward Citations)
US3531483A
Cited
US3567724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |