Title:
POLYETHER POLYCARBONATE DIOL AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2021/024812
Kind Code:
A1
Abstract:
Provided is a polyether polycarbonate diol in which the ratio of the overall number of terminal alkoxy groups and terminal aryloxy groups relative to the total number of terminal groups is 0.20-7.5%. By controlling the ratio of the total number of terminal alkoxy groups and terminal aryloxy groups relative to the total number of terminal groups in the polyether polycarbonate diol within a preferred range, it is possible to obtain a polyurethane having a desired molecular weight while suppressing a rapid polymerization reaction.
Inventors:
IZAWA YUSUKE (JP)
YAMASHITA RYO (JP)
KOBAYASHI MITSUHARU (JP)
KUSANO KAZUNAO (JP)
TANIGUCHI SHOHEI (JP)
YAMASHITA RYO (JP)
KOBAYASHI MITSUHARU (JP)
KUSANO KAZUNAO (JP)
TANIGUCHI SHOHEI (JP)
Application Number:
PCT/JP2020/028487
Publication Date:
February 11, 2021
Filing Date:
July 22, 2020
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
C08G64/18; C08G18/44
Foreign References:
| JP2015214599A | 2015-12-03 | |||
| JP2006199799A | 2006-08-03 | |||
| JP2014080590A | 2014-05-08 | |||
| JP2017222854A | 2017-12-21 | |||
| JPS61120830A | 1986-06-07 | |||
| JP2002256069A | 2002-09-11 | |||
| JP2019145523A | 2019-08-29 |
Other References:
See also references of EP 4011934A4
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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