Patent ID: 7144946

Claim:
A wet end additive composition for addition to a slurry during papermaking, composition comprising: a. between about 0.5 pounds and about 10 pounds per ton of paper of a cationic polyvinyl alcohol in an aqueous solution with between about 2 and about 50% solids by weight, the polyvinyl alcohol having a weight average molecular weight between about 21,000 and about 140,000 and being between about 86% and 100% mole percent hydrolyzed, wherein the cationic polyvinyl alcohol is a methyl chloride quaternary salt of poly(dimethylamino ethyl acrylate/polyvinyl alcohol graft copolymer or a methyl sulfate quaternary salt of poly(dimethylamino ethyl acrylate)/polyvinyl alcohol graft copolymer b. between about 5% and 25% by weight of at least one filler; c. between about 2 and about 4 pounds per ton of paper of at least one sizing agent; and d. between 0.5 and about 3 pounds per ton of paper of at least one retention aid.