| 摘要 |
PURPOSE:To obtain a composition having high adhesivity to poly-1-butene and a polar material, and composed of a 1-butene polymer, a propylene copolymer and a specific propylene-alpha-olefin random copolymer, wherein at least a part of the composition is grafted with an unsaturated carboxylic acid (derivative). CONSTITUTION:The objective composition can be produced by mixing (A) 14-80(wt)% 1-butene polymer having an intrinsic viscosity of 0.7-10dl/g in decalin solvent at 135 deg.C, (B) 80-10% propylene polymer, preferably block copolymer or random copolymer of propylene and other alpha-olefin and having a melt flow rate of 0.1-200g/10min, and (C) 76-6% propylene-alpha-olefin random copolymer having a propylene content of 50-87mol% and a heat of crystal fusion of 10-80 Joule/g measured by scanning differential calorimeter and grafting the whole composition with 0.01-4% (based on the grafted composition) unsaturated carboxylic acid (derivative). |
