KOMPOSISI RESIN POLIPROPILENA DAN SELAPUT TIPIS TIDAK REGANG DARINYA

摘要

PROBLEM TO BE SOLVED: To obtain a resin composition for films excellent in transparency and low temperature heat sealing properties by mixing a polypropylene resin, an ethylene/α-olefin random copolymer and a propylene/ethylene/1-butene random copolymer, each in a specific amount. ;SOLUTION: There is provided a resin composition comprising 50-95 pts.wt. of at least one polypropylene resin selected from a propylene homopolymer, a propylene/α-olefin random copolymer containing not more than 10 mole % of other α-olefin units and a propylene/α-olefin block copolymer having an n-decane extract content of not more than 10 wt.%; 3-40 pts.wt. of an ethylene/α- olefin random copolymer comprising 60-95 mole % of ethylene units and having a density of not more than 0.900 g/cm³ and an MFR of 0.1-50 g/10 min; and 2-20 pts.wt. of a propylene/ethylene/1-butene random copolymer comprising 50-88 mole % of propylene units, 2-30 mole % of ethylene units and 10-40 mole % of 1-butene units and having an MFR of 0.1-50 g/10 min, the three ingredients making up to 100 pts.wt.;COPYRIGHT: (C)1999,JPO