Title:
PROCESS FOR PRODUCING AROMATIC VINYL/CONJUGATED DIENE COPOLYMER AND PRODUCT OF HYDROGENATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2016/104745
Kind Code:
A1
Abstract:
The present invention relates to a process for producing a copolymer having a high oil absorption by separating the solvent from a copolymer solution containing the copolymer in a simple manner with a less energy consumption. The process, which is for producing a copolymer by separating the solvent from a copolymer solution, comprises the following steps A to C.
Step (A) in which the solid concentration (Ts) of the copolymer solution is regulated to a value within the range of 5≤Ts≤60 in terms of mass%; step (B) in which the copolymer solution obtained in the step (A) is heated to a temperature (T) (ºC) within a specific range; and step (C) in which the copolymer solution heated in the step (B) is ejected from a specific nozzle at a linear velocity of 1-100 m/sec to separate the solvent in a 0-200ºC inert gas stream.
Inventors:
TSUJI TOMONORI (JP)
SHINTANI MASATAKA (JP)
HATANAKA YASUHIRO (JP)
SHINTANI MASATAKA (JP)
HATANAKA YASUHIRO (JP)
Application Number:
PCT/JP2015/086336
Publication Date:
June 30, 2016
Filing Date:
December 25, 2015
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
C08F6/12; C08F2/06; C08F4/46; C08F8/04; C08F212/08; C08F236/10; C08F297/04; D01F6/78
Domestic Patent References:
| WO2006088160A1 | 2006-08-24 |
Foreign References:
| JP2004091752A | 2004-03-25 | |||
| JP2004155851A | 2004-06-03 | |||
| JP2006241176A | 2006-09-14 | |||
| JP2009091574A | 2009-04-30 |
Other References:
See also references of EP 3239187A4
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