Patent ID: 6881856

Claim:
A polyethercarbonate diol comprising a reaction product of a carbonate compound with a polyether diol having (1) structural units (a) represented by formula (I) and further having (2) structural units (b) represented by formula (II) or structural units (c) represented by formula (III) or structural units (b) represented by formula (II) and structural units (c) represented by formula (III), units (a): —(CH 2 ) 6 —O— (I) units (b): —(CH 2 ) 2 —O— (II) units (c): —CH 2 CH(CH 3 )—O— (III) the units (b) being present in an average number (n) of moles of 0 to 5 per mole of the units (a), the units (c) being present in an average number (m) of moles of 0 to 5 per mole of the units (a), and the total average number (n+m) of moles of the units (b) and (c) being more than 1 but not more than 5, per mole of the units (a).