Patent ID: 8993508
Filing Date: 2015-03-31
Classification: C09B,C11D

Abstract:
1. A laundry care composition comprising from about 0.00001 wt % to about 0.5 wt % mono-azo carboxylate dye having the structure of Formula I: wherein each R wherein the index a is an integer from about 0 to about 4; wherein D is an aromatic or heteroaromatic group, with the proviso that the heteroaromatic group is not a thiophene; wherein R (a) unsubstituted or substituted C (b) (CH wherein R wherein y and y′ are independently selected integers from about 0 to about 39; wherein the sum of y+y′ is in the range of from about 3 to about 35; wherein w and w′ are independently selected integers from about 2 and about 3; wherein z and z′ are independently selected integers from about 0 and about 1; wherein z is 1 when y is 0; and wherein z′ is 1 when y′ is 0; wherein Q and Q′ are independently selected from the group consisting of H and Y; wherein at least one Q or Q′ group is Y; wherein Y is an organic radical represented by Formula II wherein independently for each Y group: M is H or a charge balancing cation; m is about 0 to about 5; n is about 0 to about 5; and the sum of m+n is in the range of from about 1 to about 10; each R and wherein at least one R