USE OF METAL SOAPS OF POLYCARBOXYLIC ACIDS OR POLYCARBOXYLIC ACID PARTIAL ESTERS AS PROCESSING AIDS FOR POLYESTERS

摘要

Metal soaps of polycarboxylic acids or polycarboxylic acid partial esters of the general formula (I), A-O-CO-X-CO-O-B in which: A and B together is a metal ion from the group formed by Mg<2+>, Ca<2+> and Zn<2+> or A is alkyl or alkenyl with 10 to 22 carbon atoms and B is an equivalent of the aforementioned metal ions; and X is a radical of different di or tricarboxylic acids; when used as a processing aid for polyesters, provide good properties in the modified polyester masses with regard to slip behaviour and/or transparency.