Patent ID: 6306504
Filing Date: 2001-10-23
Classification: C08G,C08J,C09D,Y10T

Abstract:
A molded article of thermoplastic polycarbonate coated with an UV-curable coating composition containingA) 20 to 75 wt %, based on the total weight of components A), B) and C), of a reaction product, which is essentially free from hydroxyl and isocyanate groups and is prepared fromA1) one or more hydroxyalkyl acrylates having 2 to 4 carbon atoms in the alkyl group, optionally mixed with up to 30 hydroxyl equivalent %, based on the total weight of component A1), of one or more other alcohols, andA2) an polyisocyanate component comprising an aliphatic polyisocyanate which contains isocyanurate groups, is based on 1,6-diisocyanatohexane and has an NCO content of 22 to 23.5 wt % and a viscosity at 23.degree. C. of 800 to 1400 mPa.s,B) 5 to 80 wt %, based on the total weight of components A), B) and C), of a low-viscosity acrylic ester component containingB1) at least 80 wt % of one or more bis-acrylates having a molecular weight of less than 350 and based on an alkane diol which may contain ether oxygen atoms andB2) up to 20 wt %, based on the weight of component B), of one or more acrylic esters other than B1),C) 0 to 80 wt %, based on total weight of components A), B) and C), of a solvent or solvent mixture andD) 0.1 to 10 wt %, based on the total weight of components A), B) and C), of one or more photoinitiators.