US4376789A
Expired / Lapsed
US
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Surfactants which are polyhydric alcohol partial esters of adducts of maleic anhydride with an unsaturated carboxylic acid
Assignee: Grillo Werke AG
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Filing: 1981-03-04
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Granted: 1983-03-15
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Expires: 2001-03-04
Abstract
Abstract Disclosed are novel polyhydric alcohol partial esters of polycarboxylic acids from Diels-Alder adducts of maleic anhydride and a straight chain unsaturated carboxylic acid having ten to twenty-five carbon atoms. The partial esters can be subsequently sulfated. The polyhydric alcohol can be a mono- or disaccharide such as sucrose or mannose. The partial esters are surfactants which are dermatologially acceptable and useful in personal products and skin-care products.
Inventors
- 👤 Norbert Lowicki
- 👤 Natvarlal B. Desai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:11
CPC Classifications
C; C07; C07H; C07H13/00; C07H13/02; C07H13/08; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/60; A61P; A61P31/00; A61P31/04; A61Q; A61Q19/00; C07H13/04; C07H13/06; A61Q1/00; A61Q1/14; A61Q15/00; A61Q19/10; A61Q5/00; A61Q5/006
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
38 words
A product of the group consisting of polyhydric alcohol partial esters of a polycarboxylic acid from a Diels-Alder adduct of maleic anhydride with an unsaturated carboxylic acid having a 10 to 25 carbon chain, and sulfonate derivatives thereof.
Claim 2
Dependent Claim
38 words
A product of the group consisting of polyhydric alcohol partial esters of a polycarboxylic acid from a Diels-Alder adduct of maleic anhydride with an unsaturated carboxylic acid having a 10 to 25 carbon chain, and sulfonate derivatives thereof.
Claim 3
Dependent Claim
17 words
A product according to claim 1 in which the polyhydric alcohol is a monosaccharide or a disaccharide.
Claim 4
Dependent Claim
16 words
A product according to claim 2 in which the unsaturated carboxylic acid has a straight chain.
Claim 5
Dependent Claim
16 words
A product according to claim 3 in which the polyhydric alcohol is sucrose, mannose or glucose.
Claim 6
Dependent Claim
30 words
A product according to claim 3 in which the unsaturated carboxylic acid is recinoleic acid, oleic acid, linoleic acid, palmitoleic acid, elaidic acid, or undecylenic acid, or a mixture thereof.
Claim 7
Dependent Claim
23 words
A cosmetic product suitable for application to the skin containing a partial ester as defined in any one of claims 1 to 5.
Claim 8
Dependent Claim
34 words
A dermatologically acceptable cosmetic product in the form of a shampoo, cleansing creme or lotion containing a partial ester as defined in any one of claims 1 to 5 as a surfactant or emulsifier.
Claim 9
Dependent Claim
19 words
A product according to claim 1 in which the unsaturated carboxylic acid has a 10 to 18 carbon chain.
Claim 10
Dependent Claim
16 words
A product according to claim 1 or 8 in which the unsaturated carboxylic acid is mono-unsaturated.
Claim 11
Dependent Claim
25 words
A product according to claim 1 or 8 in which the unsaturated carboxylic acid is mono-unsaturated and the polyhydric alcohol is sucrose, mannose or glucose.
Claim 12
Dependent Claim
20 words
A product according to claim 1 in which the unsaturated carboxylic acid is ricinoleic acid, oleic acid or undecylenic acid.
Claim 13
Dependent Claim
23 words
A cosmetic product suitable for application to the skin containing a partial ester as defined in any one of claims 8 to 11.
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) | 1986-03-14 | 1986-09-13 | 1987-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-14 | 1990-09-13 | 1991-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-14 | 1994-09-13 | 1995-03-15 | $7700.00 | Window Closed / Lapsed |