The C.p. Hall Company

Haarmann & Reimer Gmbh

Peter J Marinelli

Craig Alan Bonda

Gary Wentworth

Yin Z Hessefort

Jagdish Trivedi

Urvil B Shah

Robert J Mc Millin

Diesters of naphthalene dicarboxylic acid

Ultraviolet radiation absorbing waxes useful in cosmetic compositions

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:

A hair-treating composition containing a diester or polyester of a naphthalene dicarboxylic acid having compound formula (I) (II) or (III), or mixtures; for imparting gloss and/or hair color stabilization:

Compositions containing diesters or polyesters of naphthalene dicarboxylic acid and methods for imparting hair gloss and to provide hair color and hair dye stabilization

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: ##STR1## wherein each R.sup.1, same or different, is an alkyl group having 1 to 22 carbon atoms, a diol having the structure HO--R.sup.2 --OH, or a polyglycol having the structure HO--R.sup.3 --(--O--R.sup.2 --).sub.m --OH, wherein R.sup.2 and R.sup.3, same or different, are each an alkylene group, straight 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.

Compositions containing diesters or polyesters of naphthalene

A sunscreen composition containing a UV-A dibenzoylmethane derivative, such as 4-(1,1-dimethylethyl)-4'-methoxydibenzoylmethane (PARSOL.RTM. 1789), and a stabilizer for the dibenzoylmethane derivative having structure (I): ##STR1## wherein each R', same or different, is an alkyl group, straight or branched chain, having 1 to 22 carbon atoms. These diesters of structure (I) are quite effective in stabilizing the dibenzoylmethane derivative UV-A filter compounds making them more effective, and effective for longer periods of time.

Photostable sunscreen compositions containing dibenzoylmethane

A cosmetic formulation, particularly a transparent cosmetic formulation, containing a diester or polyester of a naphthalene dicarboxylic acid having formula (I), (II), or (III), or mixtures: ##STR1## wherein each R.sup.1, same or different, is an alkyl group having 1 to 22 carbon atoms, a diol having the structure HO--R.sup.2 --OH, or a polyglycol having the structure HO--R.sup.3 --(--O--R.sup.2 --).sub.m --OH, wherein R.sup.2 and R.sup.3, same or different, are each an alkylene group, straight chain or branched, having 1 to 6 carbon atoms, and wherein m and n are each 1 to about 100, or a mixture thereof.

Clear formulations containing diesters or polyesters of naphthalene

A sunscreen composition containing a UV-A dibenzoylmethane derivative, such as 4-(1,1-dimethylethyl)-4'-methoxydibenzoylmethane (PARSOL.RTM. 1789), and a stabilizer for the dibenzoylmethane derivative having formula (I) or (II), or mixtures: ##STR1## wherein each R.sup.1, same or different, is an alkyl group having 1 to 22 carbon atoms, a diol having the structure HO--R.sup.2 --OH, or a polyglycol having the structure HO--R.sup.3 --(--O--R.sup.2 --).sub.m --OH, wherein R.sup.2 and R.sup.3, same or different, are each an alkylene group, straight 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.

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Bartlett, IL, United States of America

Peter J Marinelli