Patent ID: 7408003
Filing Date: 2008-08-05
Classification: C08F,C08K,C08L,C09D

Abstract:
1. A polymer composition comprising: organic colorant particles; and polymer particles comprised of polymerized units of phosphorus acid monomer and having first phosphorus acid groups, wherein: wherein each of said polymer particles are multistage polymer particles comprising: a) a first polymer comprising: wherein said first polymer has a glass transition temperature in the range of from −60° C. to 35° C.; and b) a second polymer having a glass transition temperature in the range of from −60° C. to 35° C., wherein a weight % of the first phosphorus acid groups in said second polymer, based on a weight of said second polymer, is 10 weight % or less of a weight % of the first phosphorus acid groups in said first polymer, based on a weight of the first polymer and wherein the average weight ratio of said first polymer to said second polymer is in the range of from 1:2 to 1:20.