US3215720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of producing phosphorus esters of polyol alkanoic acids
Assignee: Celanese Corp
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Filing: 1961-01-03
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Granted: 1965-11-02
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Expires: 1981-01-03
Abstract
No abstract record available.
Inventors
- 👤 James D Atwood
- 👤 Ronald H Wile
- 👤 Paul C Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:44
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/08; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; C10; C10M; C10M105/00; C10M105/08; C10M105/32; C10M105/38; C10M133/00; C10M133/02; C10M133/04; C10M133/12; C10M137/00; C10M137/02; C10M137/04; C10M137/08; C10M139/00; C10M139/04; C10M159/00; C10M159/12; C10M159/123; C10M169/00; C10M169/04; C10M169/045; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/2835; C10M2207/286; C10M2207/30; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/067; C10M2215/068; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/043; C10M2223/08; C10M2223/10; C10M2223/12; C10M2223/121; C10M2227/00; C10M2227/02; C10M2227/04; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
AN ESTER OF AT LEAST ONE ALKANOIC ACID HAVING AN AVERAGE CHAIN LENGTH BETWEEN 4 AND 12 CARBON ATOMS AND A POLYOL HAVING UP TO ABOUT 9 CARBON ATOMS, AT LEAST ONE OF SAID CARBON ATOMS BEING A QUATERNARY CARBON ATOM BONDED TO AT LEAST TWO METHYLOL GROUPS AND UP TO 2 LOWER ALKYL GROUPS, SAID ESTER CONTAINING A MINOR AMOUNT OF THE PRODUCT PRODUCED BY THE REACTION OF SAID JPOLYOL AND SAID ALKANOIC ACID UNDER ESTERIFICATION CONDITIONS WITH A SUBSTANTIALLY NEUTRAL COMPOUND HAVING THE STRUCTURE:
Claim 2
Dependent Claim
86 words
AN ESTER OF AT LEAST ONE ALKANOIC ACID HAVING AN AVERAGE CHAIN LENGTH BETWEEN 4 AND 12 CARBON ATOMS AND A POLYOL HAVING UP TO ABOUT 9 CARBON ATOMS, AT LEAST ONE OF SAID CARBON ATOMS BEING A QUATERNARY CARBON ATOM BONDED TO AT LEAST TWO METHYLOL GROUPS AND UP TO 2 LOWER ALKYL GROUPS, SAID ESTER CONTAINING A MINOR AMOUNT OF THE PRODUCT PRODUCED BY THE REACTION OF SAID JPOLYOL AND SAID ALKANOIC ACID UNDER ESTERIFICATION CONDITIONS WITH A SUBSTANTIALLY NEUTRAL COMPOUND HAVING THE STRUCTURE:
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |