C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 232/06 (2006.01) C08F 4/642 (2006.01) C08F 210/06 (2006.01) C08F 4/659 (2006.01) C08F 4/6592 (2006.01)
Patent
CA 2057892
A substantially syndiotactic propylene copolymer which comprises propylene and at least one cyclic diolefin having 6 to 25 carbon atoms or an alkadiene having 6 to 25 carbon atoms and at least one terminal double bond; in the 13C-NMR spectrum of the copolymer measured in a 1,2,4-trichlorobenzene solution, a peak intensity observed at about 20.2 ppm as the reference of tetramethylsilane at 0.0 ppm being 0.5 or more of the total peak intensity attributed to methyl groups of propylene; the content of the cyclic diolefin or the alkadiene being from 0.01 to 20 mol%; the intrinsic viscosity [n] of the copolymer measured in a tetralin solution at 135°C being from 0.1 to 10 dl/g. This copolymer can contain an .alpha.-olefin other than propylene, particularly ethylene.
Asanuma Tadashi
Fukushima Satoshi
Inoue Norihide
Iwatani Tutomu
Kouno Masahiro
Fetherstonhaugh & Co.
Mitsui Chemicals Incorporated
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