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Patent US3760819A successfully refreshed from Google Patents.
US3760819A
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Permanent waving of hair with quaternary ammonium alkylating agents and ammonium thioglycolate
Assignee: L'Oréal SA
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Filing: 1970-09-09
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Granted: 1973-09-25
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Expires: 1990-09-09
Abstract
Abstract A method of permanently waving keratin substrates, such as hair, by applying thereto keratin softening agents and a quaternary ammonium halide salt keratin alkylating agent. Quaternary ammonium halide salts that make suitable keratin alkylating agents are mono, bis and tri quaternary reaction products or mixtures thereof selected from the group consisting of the reaction products of (1) hexamethylaminetetramine and cyanuric chloride; (2) hexamethylaminetetramine and 1,4-dichlorobutene; (3) hexamethylaminetetramine and p-bis-chloromethylbenzene; and (4) triethanolamine and cyanuric chloride.
Inventors
- 👤 G Vogt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:52
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/46; A61K8/49; A61K8/494; A61K8/4966; C; C07; C07D; C07D487/00; C07D487/12; C07D487/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
10 words
The composition of claim 1 having a pH of 9.
Claim 2
Dependent Claim
11 words
bis-quaternary ammonium salt of triethanolamine and cyanuric chloride of the formula
Claim 3
Dependent Claim
9 words
The composition of claim 2 which also contains urea.
Claim 4
Dependent Claim
12 words
bis-quaternary ammonium salt of hexamethylenetetramine and 1, 4-dichloro 2-butene of the formula
Claim 5
Dependent Claim
10 words
bis-quaternary ammonium salt of hexamethylenetetramine and para-bis-chloromethylbenzene of the formula
Claim 6
Dependent Claim
73 words
A method of permanently shaping living hair comprising the steps of applying to the hair in amounts effective to facilitate the shaping of said hair the composition of claim 1, shaping the hair, keeping said composition on the hair for about 15 minutes at ambient temperature, then raising the temperature to about 55* C, keeping said composition on the hair for about 5 minutes at 55* C, rinsing and then drying the hair.
Claim 7
Dependent Claim
51 words
The composition of claim 3 wherein said ammonium thioglycolate is present in amounts of about 10 weight percent, said urea is present in amounts of about 1.5 g and said quaternary ammonium compound alkylating agent is present in amounts of about 6.5 to 7.5 g per 100 ml of said composition.
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |