C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/6581
C08L 23/20 (2006.01) C08L 23/10 (2006.01)
Patent
CA 1323716
Abstract The present invention relates to a butene-1 copolymer composition which has excellent heat sealing properties, mechanical characteristics, moldability, and transparency without lowering its surface characteristics, and is characterized by containing 75 to 99.5% by weight of a butene-1 copolymer comprising butene-1 unit and .alpha.-olefine having a carbon number of 2 to 3, and 25 to 0.5% by weight of a propylene polymer, the said butene-1 copolymer has an .alpha.- olefine unit content of 1 to 35 mol%, intrinsic viscosity of 0.9 to 7.2 dl/g, weight-average molecular weight/number- average molecular weight of 4 to 15, and the content of the boiling diethyl ether soluble component is 3 to 15% by weight of the copolymer.
571899
Kondo Masahiko
Yamawaki Takashi
Idemitsu Petrochemical Company Limited
Neste Oy
Swabey Ogilvy Renault
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