| 摘要 |
PROBLEM TO BE SOLVED: To provide polycarbonate polyol capable of suppressing increase of viscosity and reducing dispersion degree of a molecular weight during preparing urethane acrylate.SOLUTION: There is provided polycarbonate polyol containing at least two kinds of repeating units represented by the formula (1), having a terminal group having a hydroxy group derived from diol on both sides, a specific terminal OH ratio representing a rate of diol represented by the following formula (2) in diol forming the terminal group of at least 1.0%, and a ratio of diol represented by the following formula (2) in the diol forming the terminal group to diol represented by the following formula (3) of 3.5 to 10.5. In the formulas (1)(2)(3), Rrepresents a divalent aliphatic hydrocarbon group having 2 to 12 carbon atoms and Rrepresents an aliphatic hydrocarbon group having 1 to 9 carbon atoms.SELECTED DRAWING: None |
