Patent ID: 6756129
Filing Date: 2004-06-29
Classification: B41M,C08L,Y10T

Abstract:
A polymer blend composition comprising, in admixture:A) from about 1.0 to about 99.0% by weight of the composition of at least one cationic polymer composition produced by reacting in a free radical polymerization reaction a mixture comprising: 1) about 6.0 to about 28.0% by total weight of the mixture of a member selected from the group consisting of amine-containing ethylenically unsaturated monomers, ethylenically unsaturated monomers containing at least one quaternary ammonium group, N-hydroxymethyl acrylamide, N-hydroxymethyl methacrylamide, N-hydroxymethyl-substituted acrylamide, N-hydroxymethyl-substituted methacrylamide, and combinations thereof; 2) about 0.1 to about 40.0% by total weight of the mixture of a member selected from the group consisting of acrylic esters of alcohols containing from 1 to 22 carbon atoms, methacrylic esters of alcohols containing from 1 to 22 carbon atoms, styrene, substituted styrenes, acrylonitrile, methacrylonitrile, vinyl chloride, vinylidene chloride, vinyl ethers, vinyl esters, N-vinyl amides, and combinations thereof; 3) about 3.0 to about 5.0% by total weight of the mixture of a member selected from the group consisting of cationic surfactants and combinations thereof; 4) up to about 3.0% by total weight of the mixture of a member selected from the group consisting of non-ionic surfactants and combinations thereof; 5) up to about 9.0% by total weight of the mixture of a member selected from the group consisting of ethylenically unsaturated monomers containing at least one hydroxyl group and combinations thereof; 6) up to about 4.0% by total weight of the mixture of at least one chain transfer agent; 7) a catalytic amount of polymerization initiator; and 8) the balance of the mixture being water; to produce the cationic polymer composition having a solids content in the range of about 1.0% to about 50.0% and a pH in the range of about 3.5 to about 8.5; and B) from about 1.0 to about 99.0% by total weight of the composition of at least one anionic polymer composition produced by reacting in a free radical polymerization reaction a mixture comprising: 1) about 20.0 to about 50.0% by total weight of the mixture of a member selected from the group consisting of vinylic monomers and combinations thereof; 2) up to about 20.0% by total weight of the mixture of a member selected from the group consisting of water-dispersible polymers having an acid number of no greater than 250 and a weight average molecular weight in the range of about 4,000 to about 20,000 and combinations thereof; 3) up to about 5.0% by total weight of the mixture of a member selected from the group consisting of epoxy monomers that contain at least two ethylene oxide groups, epoxy monomers that contain at least two epoxide groups, epoxy monomers that contain at least one ethylene oxide group and at least one epoxide group, and combinations thereof; 4) up to about 5.0% by total weight of the mixture of a member selected from the group consisting of anionic surfactants, non-ionic surfactants, and combinations thereof; 5) up to about 4.0% by total weight of the mixture of a member selected from the group consisting of chain transfer agents and combinations thereof; 6) up to about 5.0% by total weight of the mixture of at least one organic solvent; 7) a catalytic amount of polymerization initiator; and 8) the balance of the mixture being water; to produce an anionic polymer composition having a solids content in the range of about 1.0% to about 50.0%, a pH in the range of about 3.5 to about 9.0, and an acid number of no greater than about 22; and wherein said polymer blend composition has an acid number no greater than about 22.