| abstract |
Disclosed is a polycarbonate diol-containing composition in which the reactivity in producing polyurethane is stabilized in order to stabilize the properties and quality such as heat resistance, weather resistance and water resistance of polyurethane derived from polycarbonate diol. A structure represented by the following formula (A) [—O—R—O—CO—] is used as a repeating unit, and a structure represented by the following formula (B) HO—R—O—CO—: A polycarbonate diol-containing composition containing a polycarbonate diol at the terminal, wherein the polycarbonate diol has a hydroxyl value of 10 or more and 400 or less, and the following formula (C) 0.2 <= (P) / (Q) < = Polycarbonate diol-containing composition satisfying 0.8. (P) = {number of moles of R in which R in formula (B) is (CH 2 ) 1 } / {total number of moles of R in formula (B)}, (Q) = {in formula (A) R in which R is (CH 2 ) l } / {total moles of R in formula (A)} [Selection figure] None |