Title:
METHOD FOR PREPARING VINYL CHLORIDE-BASED POLYMER
Document Type and Number:
WIPO Patent Application WO/2023/249282
Kind Code:
A1
Abstract:
The present invention provides a method for preparing a vinyl chloride-based polymer, the method comprising the steps of: preparing a mixture by adding alcohol to a vinyl chloride-based polymer slurry (S1); separating a waste liquid from the mixture to obtain a vinyl chloride-based polymer (S2); and adding at least a portion of the separated waste liquid to the mixture (S3), wherein the waste liquid input in step S3 is 33.0-35.0 parts by weight with respect to 100 parts by weight of the mixture.
Inventors:
LEE SE WOONG (KR)
HA HYUN KYOU (KR)
KIM KUN JI (KR)
BAE HEUNG KWON (KR)
KIM HYUN CHUL (KR)
CHOI YUN SEOK (KR)
HA HYUN KYOU (KR)
KIM KUN JI (KR)
BAE HEUNG KWON (KR)
KIM HYUN CHUL (KR)
CHOI YUN SEOK (KR)
Application Number:
PCT/KR2023/007463
Publication Date:
December 28, 2023
Filing Date:
May 31, 2023
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C08F14/06; C08F6/28; C08J11/08
Foreign References:
| KR20220009686A | 2022-01-25 | |||
| KR20180033876A | 2018-04-04 | |||
| KR101765842B1 | 2017-08-08 | |||
| KR20210136868A | 2021-11-17 | |||
| JPS60229907A | 1985-11-15 |
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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