Oblon, McClelland, Maier & Neustadt, L.L.P.
Polycarbonate diol and producing method thereof, and polyurethane and active energy ray-curable polymer composition both formed using same
A novel polycarbonate diol is useful as a raw material for producing a polycarbonate diol-based polyurethane with a high degree of hardness, superior abrasion resistance, and superior hydrophilicity. The polyurethane is useful in paints, coating agents, synthetic leathers, artificial leathers, and highly-functional elastomers, or the like. The polycarbonate diol is also useful for producing an active-energy radiation curable polymer composition giving a cured film having superior contamination resistance and high degree of hardness. The curable polymer composition contains a urethane(meth)acrylate oligomer obtained from the polycarbonate diol. The polycarbonate diol is obtained, for example, by reacting two specific types of diols with diester carbonate in the presence of a transesterification catalyst. The catalyst has a metal of Group 1 or 2 on the periodic table. A metal content of the transesterification catalyst is 100 weight ppm or less.
MITSUBISHI CHEMICAL CORPORATION
C B C C C C C C C C C C C C C C C C C
C09D B32B C08G C08G C07D C08G C08G C09J C08F C08G C09D C08F C08G C09J C08G C09D C08G C08G C08L
inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional
Masanori Teruhiko Kazunao Kentaro Kazuki Hiroto Haruo Takashi Haruhiko
Yamamoto Ohara Kusano Uchino Wakabayashi Ito Iiduka Komaya Kusaka