Chisso Corporation

Sinichi Akitaya

Takanori Nakashima

Yoshitaka Morimoto

Youichi Kugimiya

Takayuki Hattori

Yasuhiro Mochizuki

Taketo Hirose

The present invention relates to a film using a polypropylene composition comprising crystalline polypropylene and a copolymer of propylene with &agr;-olefin in which a limiting viscosity of the said copolymer &lsqb;&eegr;&rsqb; is not more than 6.5 dl/g; the ratio of the limiting viscosity of the said polymer &lsqb;&eegr;&rsqb; to the limiting viscosity of the said crystalline polypropylene &lsqb;&eegr;&rsqb; is from 0.6 to 1.2; and the product i.e. (&lsqb;&eegr;&rsqb; /&lsqb;&eegr;&rsqb; )&times;(W /W ), of the ratio of the limiting viscosity of the copolymer to the crystalline polypropylene with the ratio by weight of them is within a range of from 0.2 to 4.5 and also relates to a multi-layered film having at least one layer of the said film.

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Chiba, Japan

Sinichi Akitaya