Preservative mixtures

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

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Details

514532, 514544, A61K 31235, A61K 31415

Patent

active

053526937

ABSTRACT:
A solid composition comprising a dispersion of at least one alkyl ester of p-hydroxybenzoic acid in a hydroxymethyl-substituted dimethylhydantoin, its method of preparation, and its use as a preservative in shampoos, lotions, and cosmetics.

REFERENCES:
patent: 4496576 (1985-01-01), Loncrini et al.
patent: 4908456 (1990-03-01), Farina et al.
patent: 5037843 (1991-08-01), Schoenberg
D. N. Maddox, "The Role of p-Hydroxybenzoates in Modern Cosmetics," Cosmetics & Toiletries, vol. 97 (Nov., 1982), pp. 85-88.
Joel E. Rogelberg, "Dantogard: A New EPA Registered Preservative," HAPPI, Mar., 1986, pp. 60, 63-64.
Marvin Rosen, "A New Preservative," Soap/Cosmetics/Chemical Specialties, Mar., 1986, pp. 28-29, 78.

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