Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
Pd触媒ノルボルネンポリマーの分子量及び光学密度を制御するための連鎖移動及び活性化組合せ剤の使用
Document Type and Number:
Japanese Patent JP2010523766
Kind Code:
A
Abstract:
A method of controlling the molecular weight of poly(cyclic) olefin (norbornene-type) polymers and activating the polymerization thereof with a single material is provided. Such method include adding a chain transfer/activating agent to a mixture of monomer(s), catalyst, solvent and an optional cocatalyst and polymerizing the mixture to form a polymer. It is shown that the amount of chain transfer/activating agent in the mixture can serve to control the molecular weight of the resulting polymer, its percent conversion or both, and in some embodiments the optical density of the resulting polymer.

Inventors:
Rose, Larry, F.
Kandanarashichi, Pramod
Stephen Smith
Bradley, Patrick
Chan, Chun
Application Number:
JP2010502215A
Publication Date:
July 15, 2010
Filing Date:
March 28, 2008
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Promelas, LLC
International Classes:
C08F32/08; C08F4/80
Domestic Patent References:
JPH10130311A1998-05-19
JP2006518779A2006-08-17
JP2006291177A2006-10-26
JP2008536956A2008-09-11
Foreign References:
WO2006091523A22006-08-31
Attorney, Agent or Firm:
Sonoda Yoshitaka
Kobayashi Yoshinori