Heterocyclic quaternary salts of para-dialkylamino benzamide der

Details Heterocyclic quaternary salts of para-dialkylamino benzamide der Heterocyclic quaternary salts of para-dialkylamino benzamide der

1994-12-15

1995-06-27

Brust, Joseph Paul

Drug, bio-affecting and body treating compositions

Topical sun or radiation screening, or tanning preparations

Aromatic acid or derivative containing

424 47, 424 709, 514938, 544165, 546221, 548215, A61K 706, A61K 742, C07D26304

Patent

active

054277744

ABSTRACT:
This invention relates to non-hydrolyzable, non-irritating, hair, skin and textile substantive quaternary ammonium salts of a para-dialkylamino benzamide having the formula ##STR1## wherein R' and R" are each selected from the group of C.sub.1 to C.sub.2 alkyl; n is an integer having a value of from 2 to 6; R is an alkyl radical having from 1 to 30 carbon atoms; R.sub.1 and R.sub.2 together with the attached cationic nitrogen atom forms a 5 to 6-membered heterocyclic ring containing a hetero oxygen atom in addition to the heteronitrogen atom and is selected from the group of ##STR2## and X is an anion. These benzamide heterocyclic derivatives are active sunscreening agents which are usefully employed at a concentration of from about 0.5 to about 10 wt. % in a formulation requiring protection against the harmful effects of sunlight, such as skin burn, hair damage, color fading, etc.

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