Drug – bio-affecting and body treating compositions – Solid synthetic organic polymer as designated organic active... – Polymer from ethylenic monomers only
Patent
1988-08-24
1990-02-06
Robinson, Ellis P.
Drug, bio-affecting and body treating compositions
Solid synthetic organic polymer as designated organic active...
Polymer from ethylenic monomers only
424 71, 132204, A61K 709, A45D 704
Patent
active
048987263
ABSTRACT:
A no-base type, aqueous alkali-based hair-straightening composition having a pH between 12 and about 14 initiates and enhances the permanent hair-straightening effect. The hair-straightening composition comprises, as an active hair-straightening agent, a strong alkali, and a water-soluble hair-straightening initiating agent. The initiating agent is a mercapto (C.sub.4 -C.sub.6) dicarboxylic acid having a sulfhydryl functional group on a carbon atom alpha to one or both of the carboxy acid groups, salt thereof or derivative thereof, and is a hair keratin-disulfide reducing agent. The initiated composition particularly augments and enhances the permanent hair-straightening benefits of sodium hydroxide, yet substantially overcomes negative hair conditioning problems normally associated therewith. Thiomalic acid and 2,5-dimercaptoadipic acid are preferred initiating agents. Also disclosed is a hair-straightening system and method for straightening hair with the foregoing compositions.
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Johnson Products Co., Inc.
Robinson Ellis P.
Rucker Susan S.
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