Title:
METHOD FOR HYDROGENATING UNSATURATED POLYHYDROXYHYDROCARBON POLYMER
Document Type and Number:
Japanese Patent JP3232860
Kind Code:
B2
Abstract:
PURPOSE: To provide a method for hydrogenating an unsatd. polyhydroxyhydrocarbon polymer which can be executed industrially advantageously in the presence of a hydrogenation catalyst and a reaction solvent by keeping the water content in the reaction system at a specified value or lower.
CONSTITUTION: The water content of the reaction system is kept at 2wt.% or lower in hydrogenating an unsatd. polyhydroxyhydrocarbon polymer in the presence of a hydrogenation catalyst and a reaction solvent by using the reaction solvent, the polymer, and the catalyst each having a low water content. The polymer has carbon-carbon double bonds in the main chain or side chains and on average at least 1.1 hydroxyl groups in the molecule, an esp. suitable example being a polyhydroxypolybutadiene. A ruthenium catalyst is an esp. pref. metal catalyst.
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Inventors:
Etsukazu Ohshima
Jinhide Ishikawa
Tetsuo Asanuma
Masakazu Goto
Jinhide Ishikawa
Tetsuo Asanuma
Masakazu Goto
Application Number:
JP4235094A
Publication Date:
November 26, 2001
Filing Date:
March 14, 1994
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C08C19/02; C08F8/04; (IPC1-7): C08C19/02
Domestic Patent References:
| JP5090694A | ||||
| JP4108809A |
Attorney, Agent or Firm:
Koji Hasegawa
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