Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
NORBORNENE POLYMER AND PROCESS FOR THE PREPARATION THEREOF
Document Type and Number:
WIPO Patent Application WO/1999/009085
Kind Code:
A1
Abstract:
A norbornene polymer comprising 20 to 100 mole % (based on the total amount of the repeating units) of repeating units derived from a norbornene monomer which has a cyclic hydrocarbon structure (I) derived from a norbornene ring which constitutes at least part of the main chain, a cyclic C¿4?-C¿6? hydrocarbon structure sharing one carbon-carbon bond with the structure (I), and a mono- or polycyclic hydrocarbon structure (III) sharing at least one carbon-carbon bond with the structure (II), characterized in that the number-average molecular weight is 1,000 to 1,000,000 and that the ?13¿C-NMR spectrum as determined in heavy chloroform (with TMS as reference) has areas (A) and (B) of the peaks assignable to the methylene present in the structure (III) as found on the higher and lower magnetic field sides, respectively, satisfy the relationship: B/(A + B) $m(F) 0.30 and a process for the preparation thereof.

Inventors:
TANAHASHI NAOKI (JP)
ITO HIDEHIRO (JP)
MURAKAMI TOSHIHIDE (JP)
Application Number:
PCT/JP1998/003677
Publication Date:
February 25, 1999
Filing Date:
August 19, 1998
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON ZEON CO (JP)
TANAHASHI NAOKI (JP)
ITO HIDEHIRO (JP)
MURAKAMI TOSHIHIDE (JP)
International Classes:
C08F8/00; C08F232/08; C08G61/08; (IPC1-7): C08G61/08; C08L65/00; C08F232/08
Foreign References:
JPH0741550A1995-02-10
JPH0753680A1995-02-28
JPH02255715A1990-10-16
JPH06248164A1994-09-06
Other References:
See also references of EP 1006134A4
Attorney, Agent or Firm:
Nishikawa, Shigeaki (Higashi-Nippori 3-chome Arakawa-ku Tokyo, JP)
Download PDF: