PROCESS FOR THE PREPARATION OF COPOLYMERS CONTAINING HYDROXYL GROUPS

摘要

A process for the preparation of copolymers containing hydroxyl groups by radical reaction of A) 10 to 30 % by weight of at least one glycidyl ester containing 12 to 14 carbon atoms, of an aliphatic saturated monocarboxylic acid with a tertiary or quaternary .alpha.-carbon atom; and B) 90 to 70 % by weight of at least two unsaturated copolymerisable monomers, at least one of which contains at least one carboxyl group, wherein component A) is introduced first to a reaction zone and is then reacted at a temperature of at least 140.degree.C with component B) and a radical initiator, the component B) containing a monomer having carboxyl groups, wherein for the preparation of low-viscosity copolymers component A) is reacted at 140 to 200.degree.C by substance polymerisation until a degree of re-action of a least 95 % is achieved, the component B) containing at least 3.3 % by weight of the monomer having carboxyl groups, and an article coated with a product of said process.