HIGH HEAT DISTORTION RESISTANT SEGMENT ESTER POLYCARBONATES

摘要

8CL-3264 HIGH HEAT DISTORTION RESISTANT SEGMENT-ESTER POLYCARBONATES Segment-ester polycarbonates have improved resistance to high heat distortion when portions of the polymer contain units derived from 4,4'cyclohexylidenediphenol and derivatives thereof. Preferred high heat distortion segment-ester polycarbonates include the copolyestercarbonate with segments derived from isophthalic acid and 4,4'cyclohexylidenediphenol and/or terephthalic acid and 4,4'-cyclohexylidenediphenol. Films made of the segment-ester copolycarbonates have improved resistance to high heat distortion.