Meta-aminophenol sulfonamides as couplers in hair dye compositio

Details Meta-aminophenol sulfonamides as couplers in hair dye compositio Meta-aminophenol sulfonamides as couplers in hair dye compositio

1976-09-13

1978-06-13

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 101, 8 102, 260556A, 260556R, A61K 712, C07C14372

Patent

active

040946355

ABSTRACT:
Couplers responding to the formula ##STR1## in which formula R.sub.1 represents an alkyl radical having 1 to 4 carbon atoms, R.sub.2 represents a hydrogen atom or an alkyl radical having 1 to 4 carbon atoms, and n is a number having for value 2 or 3.
These couplers are particularly adapted for use in dyeing compositions containing paraphenylenediamines responding to the general formula ##STR2## or salts of the corresponding acids; formula in which R.sub.1, R.sub.2 and R.sub.3 are identical or different and represent a hydrogen atom, an alkyl radical having 1 to 2 carbon atoms or an alkoxy radical having 1 to 2 carbon atoms, R.sub.4 and R.sub.5 are identical or different and represent a hydrogen atom, an alkyl radical, hydroxyalkyl, alkoxyalkyl in which the alkoxy group comprises 1 to 2 carbon atoms, carbamylalkyl, mesylaminoalkyl, acetylaminoalkyl, ureidoaminoalkyl, carbethoxyaminoalkyl, the alkyl groups in R.sub.4 and R.sub.5 having 1 to 3 atoms of carbon, with the reservation that R.sub.1 or R.sub.3 represent hydrogen while R.sub.4 and R.sub.5 do not represent a hydrogen atom.

REFERENCES:
patent: 3743678 (1973-07-01), Halasz
Rattee, I. D. and Breuer, M. M., "The Physical Chemistry of Dye Adsorption" (Academic Press, 1974), pp. 295-297.
Corbett, J. F., "Hair Dyes" in Venkataramans, The Chemistry of Synthetic Dyes, vol. V (Academic Press, 1971), pp. 475-534.

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