Curable molding or coating compounds

摘要

A process for the preparation of a curable molding or coating compound containing an unsaturated polyester resin is disclosed. The process comprises substantially uniformly incorporating into said resin effective amounts of a cerium promoter and a catalytically active tertiary butyl peroxy ester or a tertiary amyl peroxy ester of a non- alpha -branched aliphatic or aromatic, mono- or dicarboxylic acid.