Title:
CATALYST FOR CONJUGATED DIENE POLYMERIZATION, METHOD OF PRODUCING CONJUGATED DIENE POLYMER USING THE SAME, AND CONJUGATED DIENE POLYMER
Document Type and Number:
Japanese Patent JP2019031686
Kind Code:
A
Abstract:
To provide a catalyst for conjugated diene polymerization that allows production of a conjugated diene polymer with a high content of the cis-1,4 structure, and a production method of the conjugated diene polymer.SOLUTION: A catalyst for conjugated diene polymerization comprises: a praseodymium compound (A) with a bulky ligand represented by the general formula (1) (Rto Rare each H or a C1-12 substituent; O is an oxygen atom; and Pr is a praseodymium atom); an ionic compound (B) comprising non-coordinating anions and cations; an organometallic compound (C) of an element selected from groups 2, 12 and 13 of the periodic table. The organometallic compound (C) is an organoaluminum compound, and the ionic compound (B) is a boron-containing compound.SELECTED DRAWING: None
Inventors:
SHIBA KOJI
KAISE HIROKO
KAISE HIROKO
Application Number:
JP2018193077A
Publication Date:
February 28, 2019
Filing Date:
October 12, 2018
Export Citation:
Assignee:
UBE INDUSTRIES
International Classes:
C08F4/54; C08F4/602; C08F4/606; C08F36/00
Attorney, Agent or Firm:
Katsuhiro Ito