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US3776884A
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US
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Compositions stabilized with bis-(hin-dered phenol)-alkylene diphospho-nates and phosphonoacetates
Assignee: Novartis Corp
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Filing: 1971-04-12
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Granted: 1973-12-04
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Expires: 1991-04-12
Abstract
Abstract COMPOSITIONS OF MATTER COMPRISING ORGANIC MATERIALS NORMALLY SUBJECT TO OXIDATIVE AND THERMAL DETERIORATION ARE STABILIZED BY COMPOUNDS HAVING THE STRUCTURE (4-HO,3-R,R1-PHENYL)-(CH2)X-C(-R4)(-P(=O)(-O-R5)2)-(CH2)Y- (3-R2,R3-1,4-PHENYLENE)-OH WHERE R, R1, R2 AND R3 ARE ALKYL OR CYCLOALKYL GROUPS, R4 IS A PHOSPHORYL GROUP HAVING THE STRUCTURE -P(=O)(-O-R5)2, OR -P(=O)(-R6)-O-R5 OR CARBALKOXY GROUP -COO-R5 WHERE R6 IS ALKYL, PHENYL OR ALKYLPHENYL, R5 IS ALKYL, ALKARYL OR ARALKYL AND X AND Y ARE 1 TO 6.
Inventors
- 👤 J Spivack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:58
CPC Classifications
C; C09; C09K; C09K15/00; C09K15/04; C09K15/32; C09K15/322; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4056; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/5333; C10; C10M; C10M1/00; C10M1/08; C11; C11B; C11B5/00; C11B5/0071; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10M2223/00; C10M2223/06; C10M2223/065; C10N; C10N2040/00; C10N2040/20; C10N2040/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |