Patent ID: 6437037
Filing Date: 2002-08-20
Classification: C08F,C09D

Abstract:
A rosin-fatty acid vinylic polyamide polymer latex composition comprising the reaction product prepared by:(A) reacting in an addition polymerization reaction: (1) about 20.0% to about 60.0% by total weight of the reactants of the addition polymerization reaction of a fatty acid rosin mixture comprising: (a) about 10.0% to about 90.0% by total weight of the fatty acid rosin mixture of fatty acid, and (b) about 10.0% to about 90.0% by total weight of the fatty acid rosin mixture of rosin; and (2) about 40.0% to about 80.0% by total weight of the reactants of the addition polymerization reaction of a monomer mixture comprising: (a) about 15.0% to about 45.0% by total weight of the monomer mixture of a member selected from the group consisting of acrylic acid, methacrylic acid, fumaric acid, maleic anhydride, and combinations thereof, (b) about 55.0% to about 85.0% by total weight of a non-carboxylic acid containing vinylic monomer, (c) about 0.5% to about 5.0% by total weight of the monomer mixture of a polymerization initiator, (d) up to about 4.0% by total weight of the monomer mixture of a chain transfer agent, and (e) up to about 30% by total weight of the monomer mixture of a hydrocarbon solvent, at a temperature in the range of about 135Â° C. to about 175Â° C. to produce a rosin-fatty acid vinylic polymer having a weight average molecular weight in the range of about 4,000 to about 12,000; (B) reacting in an adduction polymerization reaction: (1) about 88.0% to about 99.5% by total weight of the reactants of the adduction polymerization reaction of the rosin-fatty acid vinylic polymer, and (2) about 0.5% to about 12.0% by total weight of the reactants of the adduction polymerization reaction of a member selected from the group consisting of &agr;,&bgr;-unsaturated carboxylic acids, &agr;,&bgr;-unsaturated carboxylic anhydrides, and combinations thereof at a temperature in the range of about 170Â° C. to about 240Â° C. to produce a maleated rosin fatty acid vinylic polymer; (C) reacting in a condensation polymerization reaction: (1) about 65.0% to about 95.0% by total weight of the reactants of the condensation polymerization reaction of the maleated rosin fatty acid vinylic polymer, and (2) about 5.0% to about 35.0% by total weight of the reactants of the condensation polymerization reaction of a dimer acid-based polyamide resin at a temperature in the range of about 200Â° C. to about 280Â° C.; to produce a rosin-fatty acid vinylic polyamide polymer; and (D) reacting in an emulsion polymerization reaction: (1) about 4.0% to about 35.0% by total weight of the reactants of the emulsion polymerization reaction of the rosin-fatty acid vinylic polyamide polymer, (2) about 65.0% to about 96.0% by total weight of the reactants of the emulsion polymerization reaction of a monomer selected from the group consisting of acrylic monomers, methacrylic monomers, styrenic monomers, and combinations thereof, (3) from about 0.1% to about 3.0% by total weight of the reactants of the emulsion polymerization reaction of a polymerization initiator, and (4) up to about 12.0% by total weight of the reactants of the emulsion polymerization reaction of a member selected from anionic surfactants, nonionic surfactants, and combinations thereof; at a temperature in the range of about 40Â° C. to about 95Â° C. to produce the rosin-fatty acid vinylic polyamide polymer latex composition.