Patent ID: 6534567
Filing Date: 2003-03-18
Classification: C08F,C09D

Abstract:
A process for the manufacture of a (meth)acrylate resin organosoluble composition, comprising esterifying â€”COOH functional groups of a polymer comprising units derived from methacrylic acid, with Ti(OR)4 in a solvent medium, R representing ethyl, isopropyl, n-butyl, t-butyl, 2-ethylhexyl or t-amyl, the esterification being carried out in the presence of at least one acid selected from the group consisting of acrylic acid, methacrylic acid and a monocarboxylic acid Râ€²COOH, Râ€² representing a linear, branched or cyclic C1-C18 alkyl radical; an aryl radical; an alkaryl radical; or an aralkyl radical, with a molar ratio of Ti(OR)4/â€”COOH functional groups of the polymer being between 1 and 3 and a molar ratio of acid/Ti(OR)4 being between 1 and 6, the esterification being halted before the formation of a gel.