Polycarbonate diol copolymer and its manufacturing method

    公开(公告)号:JP4734696B2

    公开(公告)日:2011-07-27

    申请号:JP2000258849

    申请日:2000-08-29

    Abstract: PROBLEM TO BE SOLVED: To provide a liquid polycarbonate diol copolymer capable of easily producing a polyurethane because of being improved in workability, when producing this polyurethane containing 1,6-hexanediol(HDL) and 1,4- cyclohexanedimethanol(CHDM) as the diol component, and to provide the liquid polycarbonate diol copolymer having a stable and high reactivity in reacting with an isocyanate compound. SOLUTION: This liquid polycarbonate diol copolymer is composed of 1,6- hexanediol and 1,4-cyclohexanedimethanol, and further contains an ester interchanging catalyst heat-treated in the presense of a phosphorous triester.

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