Patent ID: 8906982

Claim:
A coating comprising: a) at least one composite particle that is comprised of: i) a pigment particle having a surface; and ii) a plurality of polymer particles comprising about 0.1 to about 10 weight % units of a phosphorus acid monomer, and 90 to 99.9 weight % of at least one second monomer, based on the weight of the plurality of polymer particles, that have been polymerized in an aqueous reaction medium having a pH of less than 2 and at a temperature of about 20° C. to less than about 100° C., wherein after polymerization, the concentration of the plurality of polymer particles is about 10 to about 70 weight %, based on the weight of the polymer particles and the aqueous reaction medium, and wherein said plurality of polymer particles are adsorbed on said surface of said pigment particle; and b) a binder.