PIGMENT DYE IN THE FORM OF 5,6-DIHYDROXYINDOLE POLYMER, METHOD FOR ITS PRODUCTION AND COSMETIC COMPOSITION ON ITS BASE Russian patent published in 1998 - IPC

Abstract RU 2109025 C1

FIELD: organic chemistry, production of dye; cosmetics. SUBSTANCE: desired compounds represent product of interaction of 5.6-dihydroxyindole with at least one sulfur-comprising compound which is chosen of N-acetylcysteine and sulfur-comprising peptides being dissolved in aqueous and/or in aqueous-alcohol medium. Method for production of said compounds and cosmetic composition on their base is also proposed. EFFECT: novel compounds are prepared. 3 cl

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RU 2 109 025 C1

Authors

Loran Marro[Fr]

Dates

1998-04-20—Published

1995-10-24—Filed