Patent ID: 9057155
Filing Date: 2015-06-16
Classification: D21C,Y02W

Abstract:
1. An aqueous polymer dispersion, comprising a polymer A selected from a homopolymer and/or copolymer of the following group: acrylic acid and/or its alkyl esters, or methacrylic acid and/or its alkyl esters, styrene and/or methylstyrene, vinyl acetate, itaconic acid, glycidyl methacrylate, 2-hydroxyalkyl(meth)acrylate, methacrylamide, N-hydroxyethyl(meth)acrylamide, dimethacrylate monomers, 1,3-butylene glycol dimethacrylate, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, propylene glycol dimethacrylate, dipropylene glycol dimethacrylate, 4-methyl-1,4-pentanediol dimethacrylate, divinylbenzene and/or trivinylbenzene, and a polymer B, which is a styrene copolymer with acrylic acid, maleimide and/or maleic anhydride.