US3706740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3,5-dialkyl-4-hydroxyphenyl derivatives of triazines
Assignee: Novartis Corp
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Filing: 1971-04-19
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Granted: 1972-12-19
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Expires: 1991-04-19
Abstract
Abstract NOVEL DIALKYL-4-HYDROXYPHENYL DERIVATIVES OF TRIAZINE WERE PREPARED WHICH ARE STABILIZERS OF ORGANIC MATERIAL. CERTAIN OF THESE COMPOUNDS CAN BE PREPARED BY DIRECT ALKYLATION OF 2,L-DIALKYLPHENOL WITH CYANURIC CHLORIDE OR THROUGH THE CYCLIZATION OF THE APPROPRIATE 3,5-DIALKYL-4HYDROXYPHENYL ALKYLIMINO ESTER HYDROCHLORIDE. A TYPICAL EMBODIMENT OF THIS INVENTION IS 2,4,6-TRIS(3'',5''-DIMETHYL4'' - HYDROXYPHENYL) - 1,3,5 - TRIAZINE. THE COMPOUNDS OF THIS INVENTION ARE USEFUL AS STABILIZERS OF ORGANIC MATERIALS WHICH ARE SUBJECT TO OXIDATIVE AND THERMAL DETERIORATION.
Inventors
- 👤 Martin Dexter
- 👤 Briarcliff Manor
- 👤 Martin Knell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:57
CPC Classifications
C; C10; C10M; C10M3/00; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C09; C09K; C09K15/00; C09K15/04; C09K15/30; C10M2203/00; C10M2203/10; C10M2203/102; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/222; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10N; C10N2040/00; C10N2040/20; C10N2040/22
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |