BENZYLIDENEMALONIC OR VINYLOGOUS BENZYLIDENEMALONIC ACID POLYESTERS, THEIR PREPARATION AND THEIR USE FOR THE UV STABILISATION OF THERMOPLASTICS

摘要

BENZYLIDENEMALONIC OR VINYLOGOUS BENZYLIDENEMALONIC ACID POLYESTERS, THEIR PREPARATION AND THEIR USE FOR THE UV STABILIZATION OF THERMOPLASTICS The present invention relates to new benzylidene-malonic or vinylogous benzylidenemalonic acid polyesters containing structural units of the formula (I) (I) their preparation and their use for the UV stabilization of thermoplastics, preferably aromatic polycarbonates, aromatic polyesters or polymethylmethacrylates.