US3335110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for stabilizing vulcanized acrylic elastomers
Assignee: Wyeth Holdings LLC
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Filing: 1964-01-03
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Granted: 1967-08-08
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Expires: 1984-01-03
Abstract
No abstract record available.
Inventors
- 👤 Mino Guido
- 👤 Horstmann Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:34
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
AN ELASTOMERIC COMPOSITION HAVING REDUCED TENDENCY TO DETERIORATE WITH AGING CONSISTING ESSENTIALLY OF: (A) A COPOLYMER OF AN ALKYL ACRYLATE IN WHICH THE ALKYL GROUP HAS 1-8 CARBONS WITH A HALOGEN CONTAINING MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYL CHLOROACETATE, 2-CHLOROETHYL ACRYLATE AND 2CHLOROETHYL, VINYL ETHER, AT LEAST SEVENITY WEIGHT PER CENT OF SAID COPOLYMER BEING CONSTITUTED OF THE ALKYL ACRYLATE MOIETY; AND (B) AT LEAST ONE ANTI-AGING AGENT SELECTED FROM THE GROUP CONSISTING OF N-PHENYL-BETA-NAPHTHYLAMINE, N-PHENYL-ALPHANAPHTHYLAMINE, 2-4 DIAMINODIPHENYLAMINE, N,N''DIPHENYL-ETHYLENEDIAMINE, N,N''-DIPHENYLAMINES, AND THE CONDENSATION PRODUCT OF ACETONE AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF ANILINE, P-PHENETIDINE, 4-AMINOBIPHENYL AND DIPHENYLAMINE THE ANTI-AGING AGENT CONCENTRATION BEING ABOUT 0.1 TO 5% WEIGHT PERCENT OF THE COMPOSITION.
Claim 2
Dependent Claim
116 words
AN ELASTOMERIC COMPOSITION HAVING REDUCED TENDENCY TO DETERIORATE WITH AGING CONSISTING ESSENTIALLY OF: (A) A COPOLYMER OF AN ALKYL ACRYLATE IN WHICH THE ALKYL GROUP HAS 1-8 CARBONS WITH A HALOGEN CONTAINING MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYL CHLOROACETATE, 2-CHLOROETHYL ACRYLATE AND 2CHLOROETHYL, VINYL ETHER, AT LEAST SEVENITY WEIGHT PER CENT OF SAID COPOLYMER BEING CONSTITUTED OF THE ALKYL ACRYLATE MOIETY; AND (B) AT LEAST ONE ANTI-AGING AGENT SELECTED FROM THE GROUP CONSISTING OF N-PHENYL-BETA-NAPHTHYLAMINE, N-PHENYL-ALPHANAPHTHYLAMINE, 2-4 DIAMINODIPHENYLAMINE, N,N''DIPHENYL-ETHYLENEDIAMINE, N,N''-DIPHENYLAMINES, AND THE CONDENSATION PRODUCT OF ACETONE AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF ANILINE, P-PHENETIDINE, 4-AMINOBIPHENYL AND DIPHENYLAMINE THE ANTI-AGING AGENT CONCENTRATION BEING ABOUT 0.1 TO 5% WEIGHT PERCENT OF THE COMPOSITION.
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |