Title:
POLYCARBONATE POLYOL AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2020/145352
Kind Code:
A1
Abstract:
Provided are a polycarbonate polyol that is liquid at normal temperature, has a reduced number of colors and turbidity, and has an average number of hydroxyl functional groups of more than 2, and a method for producing the same. A polycarbonate polyol that is liquid at normal temperature, has a reduced number of colors and turbidity, and has an average number of hydroxyl functional groups of more than 2 can be obtained by using the specific components polycarbonate polyol (A) and polyol (B) containing a polyester polyol (b1) in which the number of hydroxyl functional groups is 3 or more, and advancing a reaction under suitable reaction conditions.
Inventors:
SAITO TEPPEI (JP)
TANAKA TAKAHIRO (JP)
TANAKA TAKAHIRO (JP)
Application Number:
PCT/JP2020/000487
Publication Date:
July 16, 2020
Filing Date:
January 09, 2020
Export Citation:
Assignee:
TOSOH CORP (JP)
International Classes:
C08G18/42; C08G64/30; C08G63/64; C08G63/91; C08G64/42; C09D175/04; C09J175/04
Domestic Patent References:
| WO2018117219A1 | 2018-06-28 |
Foreign References:
| JP2018080265A | 2018-05-24 | |||
| JP2016527376A | 2016-09-08 | |||
| US20110123473A1 | 2011-05-26 | |||
| JP2007277507A | 2007-10-25 | |||
| JP2014201738A | 2014-10-27 | |||
| JP2019035073A | 2019-03-07 |
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