| abstract |
Process for the preparation of polymeric masses (P), preferably polysiloxanes, with at least one carboxylic acid ester group, in particular (meth) acrylate-bearing polysiloxanes, in which at least one epoxy group-bearing polymer is reacted with one or various carboxylic acids, characterized in that the process is carried out in the presence of reaction products (U) based on (A) and (B), with (A) being metal salts and (B) being an amine primary, comprising the metal salts (A) chromium salts. |