Title:
芳香族ビニル−共役ジエン共重合体及びその水素化物の製造方法
Document Type and Number:
Japanese Patent JP6566577
Kind Code:
B2
Abstract:
As a method for producing a copolymer with a high oil absorption rate by separating a solvent from a copolymer solution containing a copolymer in a simple manner with a less energy consumption, the present invention relates to a production method for obtaining a copolymer by separating a solvent from a copolymer solution, the method including the following Steps A to C.
Step A: a step of regulating a solid component concentration (Ts) of the copolymer solution to a range of (5 ¤ Ts ¤ 60) in terms of a mass%,
Step B: a step of heating the copolymer (P) solution obtained in the Step A such that a temperature T (°C) is in a specified range, and
Step C: a step of discharging the copolymer solution heated in the Step B from a specified nozzle at a linear velocity of 1 to 100 m/sec to separate the solvent in an inert gas stream at 0 to 200°C.
Inventors:
Tomohiro Tsuji
Masataka Shintani
Yasuhiro Hatanaka
Masataka Shintani
Yasuhiro Hatanaka
Application Number:
JP2016566539A
Publication Date:
August 28, 2019
Filing Date:
December 25, 2015
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
C08F6/12; C08F2/06; C08F4/46; C08F8/04; C08F212/08; C08F236/10; C08F297/04; D01F6/78
Domestic Patent References:
| JP2004091752A | ||||
| JP2004155851A | ||||
| JP2006241176A | ||||
| JP2009091574A | ||||
| JP2012007162A |
Foreign References:
| WO2006088160A1 | ||||
| WO2012099264A1 |
Attorney, Agent or Firm:
Tamotsu Otani
Makoto Kataoka
Makoto Kataoka