Title:
PROPYLENE COPOLYMER
Document Type and Number:
WIPO Patent Application WO/1991/015523
Kind Code:
A1
Abstract:
A substantially syndiotactic propylene copolymer comprising propylene and at least one C�6? to C�25? cyclic diolefin or C�6? to C�25? alkadiene having at least one terminal double bond, wherein the peak intensity observed at about 20.2 ppm in the ?13�C-NMR spectrum measured in solution in 1,2,4-trichlorobenzene with tetramethylsilane as the internal reference is at least 0.5 of all the peak intensities assignable to the propylene methyl group, the content of the cyclic diolefin or alkadiene is 0.01 to 20 mole %, and the limiting viscosity [$g(h)] as measured at 135 �C in tetralin is 0.1 to 10 dl/g. This copolymer may further contain an $g(a)-olefin other than propylene, particularly ethylene.
Inventors:
SHIOMURA TETSUNOSUKE (JP)
ASANUMA TADASHI (JP)
KOUNO MASAHIRO (JP)
INOUE NORIHIDE (JP)
FUKUSHIMA SATOSHI (JP)
SONOBE YOSHIHO (JP)
MIZUTANI KAZUMI (JP)
IWATANI TUTOMU (JP)
SUGIMOTO RYUICHI (JP)
ASANUMA TADASHI (JP)
KOUNO MASAHIRO (JP)
INOUE NORIHIDE (JP)
FUKUSHIMA SATOSHI (JP)
SONOBE YOSHIHO (JP)
MIZUTANI KAZUMI (JP)
IWATANI TUTOMU (JP)
SUGIMOTO RYUICHI (JP)
Application Number:
PCT/JP1991/000466
Publication Date:
October 17, 1991
Filing Date:
April 09, 1991
Export Citation:
Assignee:
MITSUI TOATSU CHEMICALS (JP)
International Classes:
C08F210/06; C08F4/659; C08F4/6592; (IPC1-7): C08F4/642; C08F210/06
Foreign References:
| JPH0241303A | 1990-02-09 | |||
| JPH0241305A | 1990-02-09 | |||
| JPH02274704A | 1990-11-08 | |||
| JPH02274703A | 1990-11-08 |
Other References:
See also references of EP 0476148A4
Attorney, Agent or Firm:
Wakabayashi, Tadashi (16th Kowa Bldg. 9-20, Akasaka 1-chom, Minato-ku Tokyo 107, JP)
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