| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polycarbonate diol-containing composition or the like which makes reactivity stable, when polyurethane is produced, so as to stabilize: the characteristics of polycarbonate diol-derived polyurethane such as heat resistance, weather resistance and water resistance; and the quality thereof. <P>SOLUTION: The polycarbonate diol-containing composition includes polycarbonate diol having: a structure represented by the following formula (A) [-O-R-O-CO-] as a repetition unit; and a structure represented by the following formula (B) HO-R-O-CO- at its terminal. In addition, the hydroxyl group value of the polycarbonate diol is at least 10 and at most 400, and the following equation (C) 0.2<=(P)/(Q)<=0.8 is satisfied, wherein (P)=äthe number of moles of R in the formula (B) when the R is (CH<SB POS="POST">2</SB>)<SB POS="POST">l</SB>}/äthe total number of moles of the R in the formula (B)}, and (Q)=äthe number of moles of R in the formula (A) when the R is (CH<SB POS="POST">2</SB>)<SB POS="POST">l</SB>}/äthe total number of moles of the R in the formula (A)}. <P>COPYRIGHT: (C)2013,JPO&INPIT |
