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Helene Curtis Industries Inc
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Helene Curtis Industries Inc
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Priority to ES556463ApriorityCriticalpatent/ES8800839A3/en
Publication of ES556463A0publicationCriticalpatent/ES556463A0/en
Publication of ES8800839A3publicationCriticalpatent/ES8800839A3/en
The compsn. for use in waving hair, is made by (a) reacting hydroxyethyl cellulose with epichlorhydrin and trimethylamine to form a polymer of mol. wt. 10,000-10,000,000 contg. quaternary nitrogen and soluble in water (b) treating the polymer with a water-soluble polycarboxylic acid contg. a disulphide gp., or one of its salts, and a waving agent contg. a thiol and (c) dissolving the prod. in water and adjusting to pH 4-9.
Cosmetic compositions comprising an aqueous solution of an urea compound, hair treatment, skin moisturizer, hair waving system, retardation of alkali production, and hair and skin treatment methods.