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Title:
DIENE RUBBER SUFFERING FROM NO DISCOLORATION WITH TIME AND METHOD OF MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2011195632
Kind Code:
A
Abstract:

To provide a simple and low-cost method of manufacturing a diene rubber that is prevented from discoloration caused by conventional method of manufacturing a polybutadiene rubber and has a decreased gel content.

The method of manufacturing the diene rubber suffering from no discoloration with time comprises charging water before polymerization of a monomer to be used so that the molar ratio of an organoaluminum to water (Al/H2O) falls within the range of 1.00 to 2.00 and subsequently carrying out polymerization.


Inventors:
MATSUDAIRA YUJI
HOSODA TAKASHI
Application Number:
JP2010061248A
Publication Date:
October 06, 2011
Filing Date:
March 17, 2010
Export Citation:
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Assignee:
UBE INDUSTRIES
International Classes:
C08F36/06; C08F4/70
Domestic Patent References:
JPH07188341A1995-07-25
JPH10330428A1998-12-15
JP2003082008A2003-03-19
JPH10330428A1998-12-15
JP2003082008A2003-03-19
JP2004083851A2004-03-18
JP2006249299A2006-09-21