A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 7/13 (1995.01)
Patent
CA 2263941
The invention provides compositions and methods for the oxidative coloring of human hair. The compositions of the invention contain as a primary intermediate at least one aminophenol of the formulas: (see fig. I), (see fig. II), or a cosmetically acceptable salt thereof, and at least one pyrazolone coupler of the formulas: (see fig. III), (see fig. IV), (see fig. V), or a cosmetically acceptable salt thereof. The compositions may also contain one or more other primary intermediates and conventional coupling compounds, in addition to an oxidizing agent and other components typically used in oxidative hair dye preparations.
Lim Mu-Ill
Pan Yuh-Guo
Stasaitis Linas R.
Bristol-Myers Squibb Company
Clairol Incorporated
Gowling Lafleur Henderson Llp
LandOfFree
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