Quaternary ammonium compounds in pretreatment of hair before shampooing with an anionic shampoo
AssigneeAlberto-Culver Company
InventorsGeorge F. Dasher, Kathleen A. O'Cull, Thomas J. Schamper
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Abstract
This invention is concerned with the pretreatment of hair on the human head, preceding shampooing the hair with anionic type hair shampoos, and with compositions for effecting such pretreatment, to obtain highly improved manageability of the hair after shampooing and with improved fullness, compability and other desired properties of the hair. The pretreatment compositions utilize readily water-soluble quaternary ammonium compounds, particularly in combination with certain agents, notably polyethylenimines and N-ethanolacetamide, and desirably together with various supplemental ingredients.
Claims15
A method of treating hair to improve the manageability thereof, which comprises initially contacting the hair with a dilute aqueous composition containing a water-soluble quaternary ammonium compound containing at least one long chain aliphatic hydrocarbon radical directly or indirectly linked to a quaternary nitrogen atom in said quaternary ammonium compound, and then shampooing the hair with an anionic shampoo.
A composition for pretreatment of hair prior to shampooing said pretreated hair with an anionic shampoo, said composition comprising a major proportion of water, and minor proportions of a readily water-soluble quaternary ammonium compound containing at least one long chain aliphatic hydrocarbon radical directly or indirectly linked to a quaternary nitrogen atom in said quaternary ammonium compound, and polyethylenimine having a molecular weight in the range of about 10,000 to about 70,000.
A composition for pretreatment of hair prior to shampooing said pretreated hair with an anionic shampoo, said composition containing from about 70 to about 90% of water, from about 0.5 to about 4% of a readily water-soluble quaternary ammonium compound containing at least one long chain aliphatic hydrocarbon radical directly or indirectly linked to a quaternary ammonium nitrogen atom in said quaternary ammonium compound, from about 3 to 18% of N-ethanolacetamide, and from about 0.2 to 5% of polyethylenimine having a molecular weight in the range of about 10,000 to about 70,000, said percentages being by weight of the composition.
Dependencies are inferred from the claim text.