Patent ID: 8461095

Claim:
A whitening agent for laundry care compositions comprising a thiazolium dye selected from an azo dye of the general Formula (V); wherein: a.) R 1 is selected from a branched or unbranched (C 1 -C 22 )-alkyl moiety, an aromatic alkyl moiety, a polyalkylene oxide moiety, or a moiety having Formula (VI) below; wherein (i) R 2 is selected from hydrogen, methyl, ethyl, propyl, acetate or a hydroxyl moiety; m and p are, independently, integers from 0 to (n−1), with the proviso that n is an integer from 1 to 6 and m+p=(n−1) (ii) Y is selected from a hydroxyl, sulfonate, sulfate, carboxylate or acetate moiety; b.) R 3 and R 4 : i.) are independently selected from hydrogen; a carboxylate moiety; a nitro moiety; a saturated or unsaturated (C 1 -C 22 )-alkyl moiety; a hydroxy-(C 2 -C 22 )-alkyl moiety; a polyether moiety; an amino-(C 1 -C 22 )-alkyl moiety; a substituted or unsubstituted phenyl moiety; a substituted or unsubstituted benzyl moiety; a (C 1 -C 22 )-alkyl moiety terminated in sulfonate, sulfate, acetate, or carboxylate; or ii.) when taken together form a saturated or unsaturated heterocyclic or carbocyclic moiety; or iii.) when taken together form a saturated or unsaturated heterocyclic or carbocyclic moiety substituted by, sulfate, sulfonate, phosphate, nitrate, alkyl ether, and carboxylate: c.) X is moiety having Formula VII below; wherein: i.) R 5 and R 6 ; (a) are independently selected from hydrogen; a saturated or unsaturated (C 1 -C 22 )-alkyl moiety; a hydroxy-(C 2 -C 22 )-alkyl moiety; a hydroxy-(C 2 -C 22 )-alkyl moiety comprising, in addition to the hydroxyl oxygen, an oxygen atom; a capped or uncapped polyether moiety; an amino-C 1 -C 22 )-alkyl moiety; a substituted or unsubstituted phenyl moiety; a substituted or unsubstituted benzyl moiety; a (C 1 -C 22 )-alkyl moiety comprising a terminating C 1 -C 4 alkyl ether, sulfonate, sulfate, acetate or carboxylate moiety; a thiazole moiety, provided that when R 5 and R 6 are a capped or uncapped polyether moiety, R 5 and R 6 each comprise, independently, from 2 to 20 ethylene oxide units, or (b) when taken together form a saturated or unsaturated heterocyclic moiety; or (c) when taken together form a saturated or unsaturated heterocyclic moiety substituted by one or more, alkoxylate, sulfate, sulfonate, phosphate, nitrate, and/or carboxylate moieties; or (d) when taken together with R 7 , R 8 , or R 7 and R 8 form one or more saturated or unsaturated heterocyclic moieties, optionally substituted by one or more alkoxylate, sulfate, sulfonate, phosphate, nitrate, and/or carboxylate moieties; (e) when taken together form a thiazole moiety; ii.) R 7 and R 8 may be independently selected from hydrogen or a saturated or unsaturated alkyl moiety; d.) Q − is an anion that balances the overall charge of the compound of Formula V, and the index q is 0 or 1, said thiazolium dye providing a hueing efficiency of greater than 10 but less than 40.