US3086985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of diallylic phthalates
Assignee: FMC Corp
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Filing: 1960-03-30
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Granted: 1963-04-23
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Expires: 1980-03-30
Abstract
No abstract record available.
Inventors
- 👤 Stange Hugo
- 👤 Allen James Forrest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:11
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/10; C07C67/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE METHOD OF PRODUCING A DIALLYLIC PHTHALATE IN ONE STEP FROM PHTHALIC ANHYDRIDE AND AN ALLYLIC HALIDE SELECTED FROM THE GROUP CONSISTING OF ALLYL AND LOWER ALKYL SUBSTITUTED ALLYL CHLORIDES, BROMIDES AND IODIDES WHICH COMPRISES REACTING ONE MOLE OF A PHTHALIC ACID WITH ONE MOLE OF SODIUM CARBONATE AND TWO MOLES OF SAID ALLYLIC HALIDE IN A SINGLE REACTION STEP, IN THE PRESENCE OF 5-10%, BY WEIGHT OF PHTHALIC ANHYDRIDE, OF A TERTIARY AMINE WHICH IS AT LEAST PARTIALLY SOLUBLE IN THE REACTION MEDIUM, UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS AT A TEMPERATURE OF 75*-150* C., THEREBY DIRECTLY PRODUCING SAID DIALLYLIC PHTHALATE.
Claim 2
Independent Claim
100 words
THE METHOD OF PRODUCING A DIALLYLIC PHTHALATE IN ONE STEP FROM PHTHALIC ANHYDRIDE AND AN ALLYLIC HALIDE SELECTED FROM THE GROUP CONSISTING OF ALLYL AND LOWER ALKYL SUBSTITUTED ALLYL CHLORIDES, BROMIDES AND IODIDES WHICH COMPRISES REACTING ONE MOLE OF A PHTHALIC ACID WITH ONE MOLE OF SODIUM CARBONATE AND TWO MOLES OF SAID ALLYLIC HALIDE IN A SINGLE REACTION STEP, IN THE PRESENCE OF 5-10%, BY WEIGHT OF PHTHALIC ANHYDRIDE, OF A TERTIARY AMINE WHICH IS AT LEAST PARTIALLY SOLUBLE IN THE REACTION MEDIUM, UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS AT A TEMPERATURE OF 75*-150* C., THEREBY DIRECTLY PRODUCING SAID DIALLYLIC PHTHALATE.
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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |