PROPYLENE (CO)POLYMER COMPOSITION AND PRODUCTION THEREOF

摘要

PROBLEM TO BE SOLVED: To obtain the above composition having high melt strength and excellent in esp. hollow moldability and expansion moldability. SOLUTION: This (co)polymer composition comprises (a) 0.01-5 pts.wt. of an olefin-dialkenylsilane copolymer and (b) 100 pts.wt. of a propylene homopolymer or a copolymer of propylene and another olefin and satisfies the relationship: log(MS)>4.24×log[η]0.962 (MS: melt strength at 230 deg.C; [η]: intrinsic viscosity determined in tetralin at 135 deg.C).