Title:
【発明の名称】工業用途用シクロオレフィン(共)重合体の製造方法
Document Type and Number:
Japanese Patent JP2000514117
Kind Code:
A
Abstract:
Cycloolefin copolymers for use for optical data memories, can be prepared by copolymerization of monomers from the group consisting of cyclic olefins, alpha-olefins having 2 or more C atoms and optionally conjugated or non-conjugated diolefins, the catalysts employed being metallocene compounds or pi complex compounds of the formulain whichCpI and CpII represent carbanions having a cyclopentadienyl-containing structure,piI and piII represent charged or electrically neutral pi systems,D represents a donor atom andA represents an acceptor atom,where D and A are linked by a reversible coordinate bond such that the donor group assumes a positive (part) charge and the acceptor group assumes a negative (part) charge,M represents a transition metal of sub-group III, IV, V or VI of the Periodic Table of elements (Mendeleev), including the lanthanides and the actinides,X denotes an anion equivalent andn denotes the number zero, one, two, three or four, depending on the charge of M.
Inventors:
Ostoya Shyutarzevski, Karl-Heinz Alexander
Kelly, Warren Mark
Schutunpupf, Andreas
Kelly, Warren Mark
Schutunpupf, Andreas
Application Number:
JP50473998A
Publication Date:
October 24, 2000
Filing Date:
July 02, 1997
Export Citation:
Assignee:
Bayer Actien Gezershyaft
International Classes:
C07F9/50; C07F9/6568; C07F17/00; C07F17/02; C07F19/00; C08F4/44; C08F4/52; C08F4/6392; C08F4/64; C08F4/642; C08F4/82; C08F10/00; C08F10/02; C08F32/00; C08F36/02; C08F210/00; C08F210/02; C08F232/00; C08F4/619; C08F4/6192; C08F4/659; C08F110/02; C08F110/06; C08F210/16; C08F210/18; (IPC1-7): C08F4/64; C08F210/00; C08F232/00
Attorney, Agent or Firm:
Heiyoshi Odashima (1 person outside)