Title:
METHOD FOR PRODUCING CONJUGATED DIENE POLYMER AND APPARATUS FOR PRODUCING CONJUGATED DIENE POLYMER
Document Type and Number:
WIPO Patent Application WO/2019/156375
Kind Code:
A1
Abstract:
The present invention provides a method for producing a conjugated diene polymer, the method comprising the steps of: preparing a first polymer solution comprising a first conjugated diene polymer by solution polymerization of a first conjugated diene monomer in a first polymerization reactor (S10); preparing a second polymer solution comprising a second conjugated diene polymer by solution polymerization of a second conjugated diene monomer in a second polymerization reactor (S20); feeding a first fluid, separated from the first polymer solution, into a first purification unit, and purifying same (S30); and feeding a second fluid, separated from the second polymer solution, into a second purification unit, and purifying same (S40), wherein the first purification unit includes a first feed tank, a first column connected to the first feed tank, and a first-prime column connected to the first column; and the second purification unit includes a second feed tank, a second column connected to the second feed tank, and a second-prime column connected to the second column, and wherein a fluid discharged from the top portion of the first column is fed into the second feed tank; and the first feed tank receives a third fluid from the second feed tank.
Inventors:
JEONG HOI IN (KR)
KO JUN SEOK (KR)
HWANG WOO SUNG (KR)
KIM DONG MIN (KR)
LEE JEONG SEOK (KR)
KO JUN SEOK (KR)
HWANG WOO SUNG (KR)
KIM DONG MIN (KR)
LEE JEONG SEOK (KR)
Application Number:
PCT/KR2019/000447
Publication Date:
August 15, 2019
Filing Date:
January 11, 2019
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C08F36/04; C08F2/01; C08F2/04; C08F4/52; C08F4/619
Foreign References:
| KR20170047032A | 2017-05-04 | |||
| KR20170005004A | 2017-01-11 | |||
| JP2010235751A | 2010-10-21 | |||
| KR20170053467A | 2017-05-16 | |||
| KR20170141872A | 2017-12-27 |
Other References:
See also references of EP 3572440A4
Attorney, Agent or Firm:
P&P PATENT LAW FIRM (KR)
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