| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated body which has a good antiblocking property and is excellent in peelability, heat-sealing characteristics and transparency. SOLUTION: This propylenic block copolymer composition comprises (A) 100 pts.wt. of a propylenic block polymer with a ratio of Mw (weight average molecular weight) to Mn (number average molecular weight) of 1-4 which comprises (a) 1-70 wt.% of a propylene component or a propylenic random copolymer containing more than 90 mol% of a monomer unit based on propylene, and (b) 30-99 wt.% of propylene-ethylene random copolymer containing 10-40 mol% of a monomer unit based on ethylene and 90-60 mol% of a monomer unit based on propylene and (B) 5-70 pts.wt. of a petroleum resin. The laminated body is obtained by laminating a layer comprising this propylenic block copolymer composition on at least one side of the laminated body. COPYRIGHT: (C)2006,JPO&NCIPI
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