Polymerization process for preparing crosslinked copolymers

摘要

The present invention relates to a process for polymerizing a mixture of one or more monovinyl monomers and one or more polyvinyl monomers in the presence of (1) one or more free-radical initiators, and (2) 0.005 to 5% by weight, calculated as metal and based on the weight of the polyvinyl monomers, of at least one metal compound from the 1st, 2nd, or 8th transition group of the periodic table, with the proviso that one or more nonionic dispersants are present as stabilizers if the polymerization is carried out by suspension polymerization.