Title:
POLYMER POLYOL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/243773
Kind Code:
A1
Abstract:
Disclosed are a preparation method for a polymer polyol and a polymer polyol prepared thereby, the method comprising the steps of: (a) reacting a first mixture containing an initiator, a polyol, a diluent, a stabilizer, a styrene-based monomer, and a nitrile-based monomer; and (b) continuously adding, to the first mixture, a second mixture containing an initiator, a polyol, a stabilizer, a styrene-based monomer, and a nitrile-based monomer, followed by reaction, wherein each of the stabilizers of the first mixture and the second mixture is contained at a weight ratio of 1:1-3.
Inventors:
KIM SEULGI (KR)
KIM GI JUNG (KR)
PARK JINWOO (KR)
KIM GI JUNG (KR)
PARK JINWOO (KR)
Application Number:
PCT/KR2022/014808
Publication Date:
December 21, 2023
Filing Date:
September 30, 2022
Export Citation:
Assignee:
KOREA KUMHO PETROCHEMICAL CO LTD (KR)
International Classes:
C08F212/12; C08F2/38; C08G18/62
Foreign References:
| KR101998849B1 | 2019-07-11 | |||
| KR101285912B1 | 2013-07-12 | |||
| US20180009956A1 | 2018-01-11 | |||
| KR20170002494A | 2017-01-06 | |||
| KR101997463B1 | 2019-07-09 |
Attorney, Agent or Firm:
HANA IP LAW FIRM (KR)
Download PDF: