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Patent Searching and Data


Title:
METHOD FOR PREPARING POLYBUTADIENE
Document Type and Number:
WIPO Patent Application WO/2017/069495
Kind Code:
A1
Abstract:
Disclosed is a method for preparing polybutadiene that can improve productivity by minimizing the plugging effect, which occurs in the process of preparing polybutadiene, and increasing a conversion rate. The method for preparing polybutadiene comprises: a first polymerization step for feeding a raw material including butadiene, a polymerization catalyst, and a solvent into each of two first polymerization reactors arranged in parallel to each other so as to reduce the plugging effect and polymerizing the same to prepare a first polymerization solution containing a butadiene polymer, wherein gas generated by polymerization heat in the first polymerization reactors is discharged to a condenser; a second polymerization step for feeding the first polymerization solution into one or more second polymerization reactors arranged in series with the first polymerization reactors and polymerizing the same to prepare a second polymerization solution containing a butadiene polymer, wherein gas generated by polymerization heat in the second polymerization reactors is discharged to the condenser; and a step for discharging the second polymerization solution.

Inventors:
HWANG, Woo Sung (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)
JEONG, Hoi In (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
LEE, Jong Ku (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
Application Number:
KR2016/011704
Publication Date:
April 27, 2017
Filing Date:
October 18, 2016
Export Citation:
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Assignee:
LG CHEM, LTD. (128 Yeoui-daero, Yeongdeungpo-gu, Seoul, 07336, KR)
International Classes:
C08F2/01; C08F36/06; C08F136/06
Foreign References:
KR20030072620A2003-09-15
KR20150028615A2015-03-16
KR20130003125A2013-01-09
US5326855A1994-07-05
KR100625135B12006-09-20
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (11th Floor, 343 Gangnam-daero,,Seocho-gu, Seoul, 06626, KR)
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