POLYCARBONATE POLYOL AND POLYURETHANE

Title:

POLYCARBONATE POLYOL AND POLYURETHANE

Document Type and Number:

WIPO Patent Application WO/2018/117219

Kind Code:

A1

Abstract:

Provided is a polycarbonate polyol which serves as a starting material for a polyurethane that has an excellent balance among flexibility, mechanical strength and solvent resistance. A polycarbonate polyol which contains a structural unit derived from a polyhydric alcohol, while having a hydroxyl number of 20-450 mgKOH/g. The polyhydric alcohol contains a diol (A) that contains 70% by weight or more of a specific oxyalkylene glycol (A1), and a trivalent to hexavalent branched alcohol (B) having 3-12 carbon atoms. The structural unit derived from the branched alcohol (B) in the polycarbonate polyol is 0.005-5.0 mol% of the structural unit derived from the polyhydric alcohol. The proportion of a structural unit (X1) represented by formula (X1) in the structural unit derived from the branched alcohol (B) is 50 mol% or less.

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Inventors:

HIOKI YUTA (JP)
KANAMORI YOSHIKAZU (JP)
KUSANO KAZUNAO (JP)
WAKABAYASHI KAZUKI (JP)
YAMASHITA RYO (JP)
YAMANAKA TAKAYUKI (JP)

Application Number:

PCT/JP2017/045947

Publication Date:

June 28, 2018

Filing Date:

December 21, 2017

Export Citation:

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Assignee:

MITSUBISHI CHEM CORP (JP)

International Classes:

C08G64/02; C08G18/44

Foreign References:

JPH11116668A	1999-04-27
JP2016527376A	2016-09-08
JP2012502143A	2012-01-26
JP2009544801A	2009-12-17
JP2008530253A	2008-08-07
JP5448627B2	2014-03-19
JPS5111159B1	1976-04-09
JP3684567B2	2005-08-17
JP2006299020A	2006-11-02
JPH03220233A	1991-09-27

Other References: