Patent ID: 6541590
Filing Date: 2003-04-01
Classification: C09D

Abstract:
A polymeric binder suitable for use in an ink composition, comprising an emulsion-polymerized addition copolymer formed from a monomer mixture comprising ethylenically unsaturated monomers including from more than 4 to 15 wt % based on the weight of said mixture of at least one ethylenically unsaturated carboxylic acid functional monomer, and from 0.05 to 5 wt % based on the weight of said mixture of at least one polymerizable surfactant monomer comprising hydrophobic and hydrophilic functional groups, wherein said hydrophobic functional group comprises a polymerizble group within it;wherein the polymerizable surfactant is selected from the group of polymerizable surfactant monomers consisting of nonylphenoxy propenyl polyethoxylated sulphate; sodium alkyl allyl sulphosuccinate; ammonium di-(tricyclo(5.2.1.0 2,6)dec-3-en-(8 or 9)oxyethyl)sulfosuccinate; and ammonium di-(tricyclo(5.2.1.0 2,6)dec-3-en-(8 or 9)sulfosuccinate; and wherein said monomer mixture comprises one or more monomers selected from the group of monomers consisting of substituted and unsubstituted (C1 to C50)alkyl(meth)acrylates, styrene and substituted styrenes, vinyl acrylates, vinyl acetates, fluoromethacrylates, acrylamide, substituted acrylamides, and methacrylamides, substituted methacrylamides.