Title:
【発明の名称】π錯化合物
Document Type and Number:
Japanese Patent JP2001518953
Kind Code:
A
Abstract:
pi-complex compounds and in particular metallocene compounds of formula (Ia)(Ib),in which piI and piII represent pi-systems, D designates a donor atom and A designates an acceptor atom, D and A being linked by a reversible coordinative bond such that the donor group assumes a positive (partial) charge and the acceptor group assumes a negative (partial) charge, at least one of D and A being part of the associated pi-system in each case, M stands for a transition metal of the 3rd, 4th, 5th or 6th subgroup of the (Mendelian) periodic system of elements, X designates an anion equivalent and n designates the number zero, one, two three or four depending on the charges of M and those of piI and piII, are novel and can be used as catalysts for the (co)polymerization of olefins, i-olefins, alkines and/or diolefins or for ring-opening polyaddition.
Inventors:
Ostoya Szyutarzzewski, Karl-Heinz Alexander
Kelly, Warren Mark
Kelly, Warren Mark
Application Number:
JP54231398A
Publication Date:
October 16, 2001
Filing Date:
March 25, 1998
Export Citation:
Assignee:
Bayer Actien Gezershyaft
International Classes:
C08F4/60; C07F9/50; C07F9/6568; C08F4/42; C08F4/64; C08F10/00; C08F10/02; C08F32/00; C08F210/02; C08F4/619; C08F4/659; C08F110/06; C08F210/16; C08F210/18; (IPC1-7): C08F4/60; C08F10/00
Attorney, Agent or Firm:
Heiyoshi Odashima (1 person outside)