Cosmetic compositions containing strongly swellable, moderately

Details Cosmetic compositions containing strongly swellable, moderately Cosmetic compositions containing strongly swellable, moderately

1990-12-17

1992-08-18

Robinson, Allen J.

Drug, bio-affecting and body treating compositions

Topical sun or radiation screening, or tanning preparations

424401, 424489, 424 70, 424 71, 424 73, 514847, 514881, 526258, 526264, A61K 3179, A61K 706, A61K 716, A61K 742

Patent

active

051397706

ABSTRACT:
What is provided herein are cosmetic compositions for the care of hair and skin containing about 0.2 to 10% by wt. of a strongly swellable, moderately crosslinked polyvinylpyrrolidone polymers in the form of fine, white powders characterized by (a) an aqueous swelling parameter defined by its gel volume of about 15 to 150 ml/g, (b) a Brookfield viscosity in 5% aqueous solution of at least about 10,000 cps, and (c) being prepared directly by a precipitation polymerization process in an organic solvent, in the presence of about 0.2 to 1% by weight of vinylpyrrolidone of a multifunctional crosslinking agent, preferably about 0.25 to 0.6%, and optimally, about 0.35 to 0.6%.

REFERENCES:
patent: 4719099 (1988-01-01), Grollier et al.

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