Patent ID: 9267098
Filing Date: 2016-02-23
CPC Classification: C09B,C11D

Claim Text:
1. A laundry care composition comprising from about 0.00001 wt % to about 0.5 wt % thiophene azo carboxylate dye having the structure of Formula I: wherein D wherein D wherein the two N atoms shown in Formula I bound directly to the carbocyclic phenylene are in a para-substitution to one another; wherein R wherein R wherein the sum of x+y+x′+y′ is in the range of from about 0 to about 50; wherein x is an integer from 0 to about 50; wherein x′ is an integer from 0 to about 50; wherein y is an integer from 0 to about 50; wherein y′ is an integer from 0 to about 50; wherein w and w′ are integers independently selected from about 2 and about 3; wherein z and z′ are integers independently selected from 0 and about 1; wherein R′ and R″ are each independently selected from the group consisting of H, C wherein each R wherein each a is an integer independently selected from 0 to about 2; wherein each b is an integer independently selected from about 2 to about 3; wherein each d is an integer independently selected from 0 to about 1; wherein each Q is independently selected from the group consisting of H and Y; wherein each Y is an independently selected organic radical represented by Formula II: wherein independently for each Y group: M is H or a charge balancing cation; m is an integer selected from 0 to about 5; n is an integer selected from about 0 to about 5; the sum of m+n is in the range of from about 1 to about 10; and each R at least one R wherein the sum of z+z′+d is at least 1; characterized in that the dye comprises at least one Q group that is Y and is either: (a) bound to a N atom in an R (b) bound to a N atom in an R (c) bound to a N atom in an R′ or R″ group wherein the index d is 1.