Skin bleaching detergent bar

Details Skin bleaching detergent bar Skin bleaching detergent bar

1985-12-20

1987-09-08

Willis, Prince E.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

252 94, 252545, 252550, 252551, 252404, 252557, 252DIG16, 424 62, 514728, C11D 112, C11D 320, A61K 7135

Patent

active

046922610

ABSTRACT:
A synthetic detergent bar is provided containing hydroquinone as a skin bleaching agent. The bar is maintained at a pH of between about 4 and 7 and includes a compressed mixture of a synthetic anionic detergent such as sodium cocoyl isethionate, sodium lauryl sulfoacetate and sodium methyl cocoyl tourate; hydroquinone, a stabilizer for said hydroquinone such as tertiary butyl hydroquinone, water, a buffer which maintains the pH of the bar at about 4 to about 7 and excipients such as waxes, paraffin, dextrin and starches. Because of the maintenance of low pH and the presence of a stabilizer, hydroquinone is not oxidized and thus the bar is characterized by an extended shelf life.

REFERENCES:
patent: 3060097 (1962-10-01), Fellows
patent: 3855150 (1974-12-01), Weris
patent: 4044160 (1977-08-01), Erickson et al.
patent: 4100097 (1978-07-01), O'Roark
patent: 4136166 (1979-01-01), Barnett et al.
patent: 4295985 (1981-10-01), Petrow et al.
patent: 4466955 (1984-08-01), Calvo et al.
McCutcheon's, "Functional Materials", The Manufacturing Confectioner Publishing Co., 1983, p. 24.

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