SYNDIOTACTIC POLYPROPYLENE COPOLYMER, COMPOSITION AND MOLDED PRODUCT CONTAINING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a syndiotactic polypropylene copolymer whereby the molded product having a excellent balance between heat resistance, abrasion resistance, transparency and flexibility can be produced and to provide a product using the copolymer. SOLUTION: The polypropylene copolymer comprises (A1) a constructive unit derived from a propylene, (A2) a constructive unit derived from at least one sort ofα-olefin selected from a group consisting of an ethylene and a 4-20Cα-olefin and (A3) a constructive unit derived from a conjugated or non- conjugated polyene. It is characterized by containing the rates of (A1): 99-50 mol%, (A2): 1-50 mol% and (A3): 0.01-30 mol% with respect to the total of (A1) and (A2) of 100 mol% and having substantially a syndiotactic structure.