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Patent Searching and Data


Title:
METHOD FOR PREPARING CONJUGATED DIENE-BASED POLYMER AND APPARATUS FOR PREPARING CONJUGATED DIENE-BASED POLYMER
Document Type and Number:
WIPO Patent Application WO/2019/151672
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing a conjugated diene-based polymer, and an apparatus for preparing same. More specifically, the method for preparing a conjugated diene-based polymer comprises the steps of: in a parallel polymerization reactor including two or more polymerization reactors connected in parallel, introducing a conjugated diene-based monomer, a catalyst, and a solvent, and conducting a polymerization reaction, thereby forming a first polymer solution containing a first conjugated diene-based polymer; and in a series polymerization reactor connected to the parallel polymerization reactor in series, introducing the first polymer solution produced from the parallel polymerization reactor, and conducting a polymerization reaction, thereby forming a second polymer solution containing a second conjugated diene-based polymer, wherein the gas generated due to the heat of polymerization during the polymerization reaction in the series polymerization reactor is condensed by a condenser provided in the series polymerization reactor, and is refluxed to the parallel polymerization reactor, and the reaction temperature of the series polymerization reactor is kept 10°C or more lower than the reaction temperature of the parallel polymerization reactor.

Inventors:
KO, Jun Seok (LG Chem Research Park, 188 Munji-ro,Yuseong-Gu, Daejeon, 34122, KR)
JEONG, Hoi In (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:
KR2019/000381
Publication Date:
August 08, 2019
Filing Date:
January 10, 2019
Export Citation:
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Assignee:
LG CHEM, LTD. (128 Yeoui-daero, Yeongdeungpo-Gu, Seoul, 07336, KR)
International Classes:
C08F36/04; C08F2/00; C08F2/01; C08F4/48; C08F4/52; C08F4/619; C08F4/639
Foreign References:
KR20170047031A2017-05-04
KR20170047032A2017-05-04
JP2002363204A2002-12-18
KR20170089112A2017-08-03
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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