| 摘要 |
PURPOSE:To improve mechanical strengths, abrasion resistance, etc., and obtain a good image constantly by molding a compsn. contg. a specific copolycarbonate resin and a thermally reversible polyester resin. CONSTITUTION:A compsn. contg. a copolycarbonate resin having structural units of formula I wherein A is a 1-10C linear, branched, or cyclic alkylidene group, an aryl-substd. alkylidene group, an arylenedialkylidene group,-0-,-S-,-CO-,- SO-, or -SO2-; and R1 to R4 are each H, halogen, 1-4C alkyl, or alkenyl 0.1-50wt.% structural units of formula II wherein R5 is 2-6C alkylene or alkylidene; R6 and R7 are each 1-3C alkyl or (substd.) phenyl; and n is 1-200 and a viscosity-average mol. wt. of 10,000-100,000, a thermally reversible polyester resin in an amt. of 1-40wt.% of the total resin component, and another resin, if necessary, is molded to give the title member. |
