US3158640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing phosphonoalcohols
Assignee: Lubrizol Corp
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Filing: 1961-02-08
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Granted: 1964-11-24
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Expires: 1981-02-08
Abstract
No abstract record available.
Inventors
- 👤 Suer William M Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:27
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C07F9/4025; C07F9/404; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/524; C08K5/53; C10L1/20; C10L1/201; C10L1/26; C10L1/2608; C10L1/30; C10L1/305; C10L1/306
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
49 words
A PROCESS FOR PREPARING POLYPHOSPHONO-SUBSTITUTED POLYOLS WHICH COMPRISES REACTING A HYDROCARBON PHOSPHITE IN WHICH THE HYDROCARBON GROUPS ARE INERT AND WHICH IS SELECTED FROM THE CLASS CONSISTING OF MONO-SUBSTITUTED AND DI-SUBSTITUTED PHOSPHITES, WITH AN ALPHA, DELTADI-OXO-HYDROCARBON IN THE PRESENCE OF A SMALL AMOUNT OF A BASIC INORGANIC METAL COMPOUND.
Claim 2
Dependent Claim
49 words
A PROCESS FOR PREPARING POLYPHOSPHONO-SUBSTITUTED POLYOLS WHICH COMPRISES REACTING A HYDROCARBON PHOSPHITE IN WHICH THE HYDROCARBON GROUPS ARE INERT AND WHICH IS SELECTED FROM THE CLASS CONSISTING OF MONO-SUBSTITUTED AND DI-SUBSTITUTED PHOSPHITES, WITH AN ALPHA, DELTADI-OXO-HYDROCARBON IN THE PRESENCE OF A SMALL AMOUNT OF A BASIC INORGANIC METAL COMPOUND.
Claim 3
Dependent Claim
47 words
AN ALPHA,DELTA,DI-(HYDROCARBON-SUBSTITUTED PHOSPHONO)-ALPHA,DELTA-ALKANEDIOL WHEREIN THE ALKANEDIOL RADICAL CONTAINS FROM 4 TO ABOUT 30 CARBON ATOMS AND WHEREIN THE HYDROCARBON SUBSTITUENTS OF THE PHOSPHONO RADICAL ARE SELECTED FROM THE CLASS CONSISTING OF ALKYL OF UP TO ABOUT 30 CARBON ATONS, CYCLOHEXYL, PHENYL, NAPHTHYL, ALKYLPHENYL, AND PHENYL LOWER ALKYL.
Claim 4
Dependent Claim
47 words
AN ALPHA,DELTA,DI-(HYDROCARBON-SUBSTITUTED PHOSPHONO)-ALPHA,DELTA-ALKANEDIOL WHEREIN THE ALKANEDIOL RADICAL CONTAINS FROM 4 TO ABOUT 30 CARBON ATOMS AND WHEREIN THE HYDROCARBON SUBSTITUENTS OF THE PHOSPHONO RADICAL ARE SELECTED FROM THE CLASS CONSISTING OF ALKYL OF UP TO ABOUT 30 CARBON ATONS, CYCLOHEXYL, PHENYL, NAPHTHYL, ALKYLPHENYL, AND PHENYL LOWER ALKYL.
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) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |