PROCESS FOR PRODUCTION OF ACRYLIC POLYMER, ACRYLIC POLYMER OBTAINED BY THE PROCESS, AND PLASTISOL COMPOSITION USING SAME

摘要

A method of producing an acrylic polymer comprising a step of emulsion-polymerizing an acrylic monomer mixture (A) and a step of emulsion-polymerizing an acrylic monomer mixture (B) in the presence of a polymerization initiator and a polymerization inhibitor in amounts satisfying the following formula (1) in the polymer dispersion (D) obtained by the emulsion polymerization thereof, wherein the mass ratio (A)/(B) of the acrylic monomer mixture (A) to the acrylic monomer mixture (B) is 70/30 to 95/5; an acrylic polymer obtained by this production method; and a plastisol composition using the same.
in the formula (1), Q represents the molar amount of the polymerization inhibitor and I represents the molar amount of the polymerization initiator present in the polymer dispersion (D) before the introduction of the polymerization inhibitor.