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Patent Searching and Data


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 (LG Chem Research Park, 188 Munji-ro,Yuseong-Gu, Daejeon, 34122, KR)
KO, Jun Seok (LG Chem Research Park, 188 Munji-ro,Yuseong-Gu, Daejeon, 34122, KR)
HWANG, Woo Sung (LG Chem Research Park, 188 Munji-ro,Yuseong-Gu, Daejeon, 34122, KR)
KIM, Dong Min (LG Chem Research Park, 188 Munji-ro,Yuseong-Gu, Daejeon, 34122, KR)
LEE, Jeong Seok (LG Chem Research Park, 188 Munji-ro,Yuseong-Gu, Daejeon, 34122, KR)
Application Number:
KR2019/000447
Publication Date:
August 15, 2019
Filing Date:
January 11, 2019
Export Citation:
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Assignee:
LG CHEM, LTD. (128 Yeoui-daero, Yeongdeungpo-Gu, Seoul, 07336, KR)
International Classes:
C08F36/04; C08F2/01; C08F2/04; C08F4/52; C08F4/619
Foreign References:
KR20170047032A2017-05-04
KR20170005004A2017-01-11
JP2010235751A2010-10-21
KR20170053467A2017-05-16
KR20170141872A2017-12-27
Attorney, Agent or Firm:
P&P PATENT LAW FIRM (Room 701, 7th Fl. Bldg.2, 15, Pangyo-ro 228beon-gil,Bundang-Gu, Seongnam-Si, Gyeonggi-do, 13487, KR)
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