Diesters of naphthalene dicarboxylic acid

Abstract

A hair-treating composition containing a diester or polyester of a naphthalene dicarboxylic acid having compound formula (I) or (II), or mixtures; for imparting gloss and/or hair color stabilization: wherein each R1, same or different, is an alkyl group having 1 to 22 carbon atoms, a diol having the structure HO—R2—OH, or a polyglycol having the structure HO—R3—(—O—R2—)m—OH, wherein R2 and R3, same or different, are each an alkylene group, sight chain or branched, having 1 to 6 carbon atoms, and wherein m and n are each 1 to about 100, or a mixture thereof. These diesters and polyesters of formula (I) or (II) are quite effective in stabilizing the dibenzoylmethane derivative UV-A filter compounds making them more effective, and effective for longer periods of time.

Dependencies are inferred from the claim text.