Clairol Incorporated

Alexander Halasz

David Cohen

Frederick Brody, Deceased

By Richard Newman, Executor

Oxidation dye compositions particularly useful for dyeing human hair containing as the meta component compounds of the formula: ##STR1## or their non-toxic salts, wherein R is alkyl, hydroxyalkyl, phenylalkyl, phenylsulfonyls, alkylsulfonyls or cyanoalkyl.

Dyeing keratin fibers with 2-substituted m-toluenediamines

Compounds useful as hair dyes of the formula: ##STR1## in which R.sup.5 is OH, -NH(lower hydroxyalkyl), -N(lower hydroxyalkyl).sub.2 or -O lower alkyl.

Hydroxyalkyl-amino nitrodiphenylamine compounds useful as hair dyes

Hair dyeing compositions are disclosed which contain an N-substituted o-phenylenediamine, the N-substituent being an alkyl, alkoxyalkyl, hydroxyalkyl, alkylaminoalkyl, dialkylaminoalkyl, phenyl or substituted phenyl. These give reddish shades by purely oxidative means, and the shades are fast to wet treatments and are long-wearing. Also disclosed are methods of dyeing hair with these compositions, as well as certain novel compounds suitable for the purpose, e.g., N-(alkoxyalkyl)-o-phenylenediamines.

Oxidative hair dye compositions containing N-substituted

A hair dye composition comprising a fluid direct-dye hair dye vehicle suitable for application to human hair containing a tinctorially effective amount of a hair dye of formula: ##SPC1## In which:

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Norwalk, CT, United States of America

Alexander Halasz