Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
LOW-MOLECULAR WEIGHT OLEFIN COPOLYMER
Document Type and Number:
Japanese Patent JP2005247942
Kind Code:
A
Abstract:

To obtain a low-molecular weight α-olefin/cycloolefin copolymer having many reactive double bonds on its terminals.

This α-olefin/cycloolefin copolymer is the one comprising (A) a 2 to 30C linear or branched α-olefin and (B) a specified cycloolefin, wherein (a) the weight-average molecular weight (Mw) of the copolymer as measured by GPC (gel permeation chromatography) falls within the range: 500≤Mw≤30,000, (b) the molar ratio (α-olefin/cycloolefin) of the structural units derived from the α-olefin to the structural units derived from the cycloolefin falls within the range: 99.9/0.1 to 20/80, and (c) [(P1+P2)/PA], i.e., the ratio of the intensities of peaks (P1 and P2, as measured by 1H-NMR) ascribable to 1H originated in a vinyl group and/or a vinylidene group to the intensity of a peak (PA) ascribable to the total 1H, falls within the range: 0.0001≤[(P1+P2)/PA]≤0.1.


Inventors:
Yoshida, Ikunori
Mori, Junichi
Ishii, Seiichi
Fujita, Terunori
Application Number:
JP2004000058396
Publication Date:
September 15, 2005
Filing Date:
March 03, 2004
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUI CHEMICALS INC
International Classes:
C08F210/00; C08F232/00; (IPC1-7): C08F210/00; C08F232/00