C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
154/140, 400/491
C08J 5/18 (2006.01) B32B 27/32 (2006.01) C08L 23/02 (2006.01) C08L 23/20 (2006.01)
Patent
CA 1335849
The present invention provides a butene-1 polymer film which comprises a composition comprising 100 parts by weight of a butene-1 polymer having a melt index of 0.1-20 g/10 min, a ratio of weight-average molecular weight/number-average molecular weight of 3-12 and having a maximum melting point of 60-140°C measured by differential scanning calorimetric analysis method and 200 parts by weight or less of an olefin polymer and which has a tensile modulus of 500-8,000 kg/cm2, a tear strength in TD or MD of 10 kg/cm or less and a ratio of tear strength in MD and tear strength in TD (MD/TD or TD/MD) of 4 or more. The present invention further provides a laminated film comprising the above butene-1 polymer film and a polyolefin resin layer laminated on at least one surface of the butene-1 polymer film.
587087
Idemitsu Petrochemical Company Limited
Neste Oy
Swabey Ogilvy Renault
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