US4087466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycondensation of glycidol on alpha diols with fatty chain with alkaline catalysts, products thus obtained and utilization
Assignee: L'Oréal SA
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Filing: 1976-04-19
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Granted: 1978-05-02
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Expires: 1996-04-19
Abstract
Abstract A method of preparing a novel non-ionic surfactant usefully employed in a cosmetic composition having the formula R-CHOH-CH2-O-CH2-CHOH-CH2-O]nH wherein R is selected from the group consisting of aliphatic, cycloaliphatic and arylaliphatic radicals and mixtures thereof having 7-21 carbon atoms, n is greater than 1 and equal to or less than 10, the method comprising condensing on an alpha -diol having the formula R-CHOH-CH2OH wherein R has the above meaning, n moles of glycidol having the formula <IMAGE> in the presence of an alkaline catalyst at a temperature of 120 DEG -180 DEG C.
Inventors
- 👤 Guy Vanlerberghe
- 👤 Henri Sebag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:51
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/02; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/39; A61Q5/04; A61Q5/06; A61Q5/065
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
34 words
A mixture of compounds having the formula R--CHOH--CH.sub.2 --O--CH.sub.2 --CHOH--CH.sub.2 --O].sub.n H wherein R is a mixture of alkyl radicals having 9-2 carbon atoms and n has a mean statistical average value of 3.5.
Claim 2
Dependent Claim
34 words
A mixture of compounds having the formula R--CHOH--CH.sub.2 --O--CH.sub.2 --CHOH--CH.sub.2 --O].sub.n H wherein R is a mixture of alkyl radicals having 9-2 carbon atoms and n has a mean statistical average value of 3.5.
Claim 3
Dependent Claim
26 words
A mixture of compounds having the formula R--CHOH--CH.sub.2 O--CH.sub.2 --CHOH--CH.sub.2 --O].sub.n H wherein R is dodecyl and n has a mean statistical average value of 3.5.
Claim 4
Dependent Claim
26 words
A mixture of compounds having the formula R--CHOH--CH.sub.2 O--CH.sub.2 --CHOH--CH.sub.2 --O].sub.n H wherein R is dodecyl and n has a mean statistical average value of 3.5.
Claim 5
Dependent Claim
31 words
A mixture of compounds having the formula R--CHOH--CH.sub.2 --O--CH.sub.2 --CHOH--CH.sub.2 --O].sub.n H wherein R is a mixture of decyl and dodecyl and n has a means statistical average value of 3.
Claim 6
Dependent Claim
31 words
A mixture of compounds having the formula R--CHOH--CH.sub.2 --O--CH.sub.2 --CHOH--CH.sub.2 --O].sub.n H wherein R is a mixture of decyl and dodecyl and n has a means statistical average value of 3.
Claim 7
Dependent Claim
19 words
The mixture of compounds of claim 3 wherein R is a 50:50 mixture by weight of decyl and dodecyl.
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) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |