Patent ID: 6756450
Filing Date: 2004-06-29
Classification: C08F,C08L,C09D

Abstract:
A chlorine-free polyolefin-based plastisol or organosol comprising:(a) a dispersion medium comprising a liquid compound capable of polyaddition selected from the group consisting of monomers, oligomers and prepolymers; b) a polyolefin in dispersed form, which has been precipitated from said dispersion medium by cooling; and (c) a polyaddition initiator system; wherein the difference between the solution parameter of the dispersion medium and the solution parameter of the polyolefin is less than 2.5 (J/cm3)0.5 and wherein the polyolefin is one or more selected from the group consisting of polyethylene, polypropylene, copolymers of ethylene, propylene and optionally C3-C8 &agr;-olefins, and copolymers of ethylene, propylene, and optionally C3-C8 &agr;-olefins with one or more monomers selected from acrylic acid and esters thereof, methacrylic acid and esters thereof, vinyl esters, vinyl ethers, vinyl acetate, vinyl alcohols, methyl or ethyl acrylate itaconic acid and the anhydride and esters thereof, triethoxyvinyl silane, vinyl alcohol, and maleic acid and the anhydride and esters thereof, wherein the maleic acid anhydride and esters are present at from 2 to 15 mole percent of the copolymer and the other monomers are present at from 1 to 50 mole percent of the copolymer.