US4469635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyol esters of alpha-hydroxy carboxylic acids
Assignee: Procter and Gamble Co
•
Filing: 1982-04-22
•
Granted: 1984-09-04
•
Expires: 2002-04-22
Abstract
Abstract Polyol esters of alpha-hydroxy carboxylic acids are disclosed which are excellent oil-in-water emulsifiers for food products, drug delivery vehicles, cosmetic ointments and the like. The compounds are also useful as detergent surfactants and can be combined with cosurfactants, builders and detergent adjunct materials.
Inventors
- 👤 Donald J. Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:06
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/36; C11D3/362; A; A23; A23C; A23C11/00; A23C11/02; A23C11/06; A23D; A23D7/00; A23D7/01; A23D7/011; A23D7/013; A23D9/00; A23D9/007; A23D9/013; A23G; A23G1/00; A23G1/30; A23G1/32; A23G3/00; A23G3/34; A23G3/36; A23G9/00; A23G9/32; A23L; A23L25/00; A23L25/10; A23L29/00; A23L29/10; A23L33/00; A23L33/20; A23L33/21; A23L33/25; A23L33/26; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/062; A61K8/18; A61K8/30; A61K8/33; A61K8/37; A61K8/375; A61Q; A61Q19/00; C07; C07H; C07H13/00; C07H13/02; C07H13/04; C07H13/06; C11D1/00; C11D1/66; C11D1/662; C11D1/667; C11D3/20; C11D3/2093; C11D3/22; C11D3/221
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
64 words
A polyol monoester or diester of an alpha-hydroxy carboxylic acid of the formula ##STR12## wherein R is a hydrocarbyl group containing from about 6 to about 20 carbon atoms and the polyol is the choline or ethanolamine ester of glycerol phosphoric acid having 0 or 1 of its hydroxyl groups esterified with a carboxylic acid containing from about 8 to about 22 carbon atoms.
Claim 2
Dependent Claim
64 words
A polyol monoester or diester of an alpha-hydroxy carboxylic acid of the formula ##STR12## wherein R is a hydrocarbyl group containing from about 6 to about 20 carbon atoms and the polyol is the choline or ethanolamine ester of glycerol phosphoric acid having 0 or 1 of its hydroxyl groups esterified with a carboxylic acid containing from about 8 to about 22 carbon atoms.
Claim 3
Dependent Claim
27 words
A compound according to claim 1 wherein substituent R of the alpha-hydroxy carboxylic acid is an alkyl group containing from about 8 to about 18 carbon atoms.
Claim 4
Dependent Claim
27 words
A compound according to claim 2 wherein substituent R of the alpha-hydroxy carboxylic acid is an alkyl group containing from about 10 to about 16 carbon atoms.
Claim 5
Dependent Claim
18 words
A compound according to claim 1 or 3 which is a polyol diester of the alpha-hydroxy carboxylic acid.
References Cited (Backward Citations)
SU180181A1
Cited
US2721188A
Cited
US2652410A
Cited
US2573650A
Cited
US2690971A
Cited
US2694474A
Cited
US2957932A
Cited
US2966410A
Cited
US3275667A
Cited
US3347848A
Cited
US3622605A
Cited
US3704254A
Cited
US3681412A
Cited
JPS4955752A
Cited
US3960905A
Cited
US4160773A
Cited
US4130571A
Cited
US4320121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |