US2945837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized polymethacrolein compositions with phenols or mercaptobenzimidazoles
Assignee: EIDP Inc
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Filing: 1958-01-02
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Granted: 1960-07-19
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Expires: 1978-01-02
Abstract
No abstract record available.
Inventors
- 👤 Eifert Robert Lee
- 👤 Marks Barnard Mitchel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:07
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/36; C08K5/37; C08K5/375
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A RESINOUS COMPOSITUON HAVING INCREASED THERMAL AND OXIDATIVE STABILITY COMPRISING AN ADDITIONAL POLYMER OF METHACROLEIN SELECTED FROM THE CLASS CONSISTING OF HOMOPOLYMERS OF METHACROLEIN AND COPOLYMERS OF METHACROLEIN WITH VINYL ESTER COMONOMERS CONTAINING AT LEAST 75% BY WEIGHT BY METHACROLEIN, HAVING THEREIN DISPERSED FROM 0.01 TO 5 WEIGHT PERCENT OF A STABILIZER SELECTED FROM THE CLASS CONSISTING OF PHENOLIC COMPOUNDS AND MERCAPTOBENZIMIDAZOLES OF THE CLASS CONSISTING OF UNSUBSTITUTED, METHYL-SUBSTITUTED AND PHENYL-SUBSTITUTED MERCAPTOBENZIMIDAZOLE.
Claim 2
Dependent Claim
72 words
A RESINOUS COMPOSITUON HAVING INCREASED THERMAL AND OXIDATIVE STABILITY COMPRISING AN ADDITIONAL POLYMER OF METHACROLEIN SELECTED FROM THE CLASS CONSISTING OF HOMOPOLYMERS OF METHACROLEIN AND COPOLYMERS OF METHACROLEIN WITH VINYL ESTER COMONOMERS CONTAINING AT LEAST 75% BY WEIGHT BY METHACROLEIN, HAVING THEREIN DISPERSED FROM 0.01 TO 5 WEIGHT PERCENT OF A STABILIZER SELECTED FROM THE CLASS CONSISTING OF PHENOLIC COMPOUNDS AND MERCAPTOBENZIMIDAZOLES OF THE CLASS CONSISTING OF UNSUBSTITUTED, METHYL-SUBSTITUTED AND PHENYL-SUBSTITUTED MERCAPTOBENZIMIDAZOLE.
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) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |