Title:
PRODUCTION OF CARBOXYL GROUP-CONTAINING CONJUGATED DIENIC POLYMER
Document Type and Number:
Japanese Patent JP3157034
Kind Code:
B2
Abstract:
PURPOSE: To provide a method for efficiently producing the carboxyl group- containing conjugated dienic polymer under a high temperature which is advantageous when the production of the carboxyl group-containing conjugated dienic copolymer is industrially performed.
CONSTITUTION: The method for producing the carboxyl group-containing conjugated dienic polymer comprise polymerizing a conjugated dienic monomer in the presence of an organic lithium compound in a specific solvent (an aliphatic or alicyclic hydrocarbon) and subsequently reacting the produced living polymer with carbon dioxide in the presence of a specific Lewis base (a tertiary amine, a tertiary diamine or a linear or cyclic ether having two or more oxygen atoms in the molecule).
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Inventors:
Takaaki Matsuda
Yoshito Matsuoka
Yoshito Matsuoka
Application Number:
JP8759392A
Publication Date:
April 16, 2001
Filing Date:
March 12, 1992
Export Citation:
Assignee:
Nippon Elastomer Co., Ltd.
International Classes:
C08C19/04; C08C19/34; C08F8/06; C08F36/00; C08F36/04; (IPC1-7): C08C19/34; C08F36/04
Domestic Patent References:
| JP4288307A | ||||
| JP411605A | ||||
| JP5294329A | ||||
| JP4867334A |
Attorney, Agent or Firm:
Takeshi Shimizu (1 person outside)