Patent ID: 7981973

Claim:
A process for latex preparation comprising: a first heating of a latomer mixture comprising at least one free radical polymerizable monomer compound and then adding at least one alkylene anhydride; a second heating of the latomer mixture; a third heating of the latomer mixture to form polymeric particles; and combining at least one amine with the polymeric particles to aggregate and coalesce the polymeric particles, wherein the at least one free radical polymerizable monomer compound is present in the latomer mixture in an amount of from about 85% to about 99% by weight relative to the at least one alkylene anhydride; wherein the at least one alkylene anhydride is present in the latomer mixture in an amount of from about 0.1 to about 20% by weight relative to the at least one free radical polymerizable monomer compound; wherein the at least one amine is present in an amount of from about 0.5 to about 10% by weight relative to the amount of the polymeric particles; wherein the at least one amine is selected from the group consisting of polyetheramines, polyoxypropylenediamine, N-isopropyl-N′-phenyl-phenylene diamine, N-(1,3-dimethylbutyl)-N′-phenyl-phenylene-diamine, N,N′-di(2-octyl) -4-phenylene diamine, N,N′-bis(1,4-dimethylpentyl)-4-phenylene diamine, and dihydroxy tetraphenyl biphenylene diamine, and wherein the at least one free radical polymerizable monomer compound and the at least one alkylene anhydride react in a molar ratio of about 1:1.