US3674038A
Expired / Lapsed
US
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Treatment of human hair with zinc and cadmium dithiolate derivatives
Assignee: L'Oréal SA
•
Filing: 1969-02-19
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Granted: 1972-07-04
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Expires: 1989-02-19
Abstract
Abstract Compositions for setting hair containing a bivalent metal dithiolate derivative having at least one N-methylol group and the process of treating human hair with these compositions.
Inventors
- 👤 Pierre Bore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:17
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/04; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/84; C; C07; C07C; C07C323/00; C07C323/23; C07C323/39; C07C323/43; C07C323/44; A61K2800/00; A61K2800/80; A61K2800/95; Y; Y10; Y10S; Y10S424/00; Y10S424/01; Y10S424/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
24 words
The composition of claim 1 wherein said compound is selected from the group consisting of cadmium-bis-(N-hydroxymethyl-carbamoyl-methylthiolate), zinc-bis-(N-hydroxymethyl-carbamoyl-methylthiolate), cadmium-bis-(N''-morpholinomethyLureido-methylthiolate), cadmium-bis-(2-(N''-hydroxymethylureido)-ethylthiolate), cadmium-bis-(2(N''-morpholinomethylurdeido)-ethylthiolate), cadmium-bis-(N''-morpholinomethyl-carbamoyl-methylthiolate) and cadmium-bis-(2-methoxycarbonyl-2-(N''-morpholinomethylureido)-ethyl -thiolate).
Claim 2
Dependent Claim
10 words
The composition of claim 1 also containing ethylenediamine tetracetic acid.
Claim 3
Dependent Claim
76 words
A process for treating human hair comprising impregnating said hair with an effective amount of a composition comprising an aqueous solution of 0.1-20 percent by weight of a compound having the formula wherein Me is selected from the group consisting of zinc and cadmium, X1 and X2 are selected from the group consisting of carbon-carbon bond, and Y1 and Y2 are selected from the group consisting of -OH and said composition having a pH of 8-10.
Claim 4
Dependent Claim
22 words
The process of claim 4 which also includes winding said hair up on rollers prior to impregnating said hair with said composition.
Claim 5
Dependent Claim
42 words
The process of claim 4 which also includes prior to impregnating said hair with said composition, impregnating said hair with a reducing solution and rinsing said hair and subsequent to impregnating said hair with said composition winding said hair up on rollers.
Claim 6
Dependent Claim
37 words
The process of claim 4 wherein said hair is bleached and which also includes subsequent to impregnating said hair with said composition, drying said hair at a temperature between 40*-60* C and thereafter permanently waving said hair.
Claim 7
Dependent Claim
32 words
The process of claim 4 which also includes subsequent to impregnating said hair with said composition, winding said hair up on rollers and drying said hair at a temperature between 40*-60* C.
Claim 8
Dependent Claim
12 words
The process of claim 4 wherein said composition also includes a detergent.
References Cited (Backward Citations)
US3063908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |