| abstract |
Excellent solvent resistance can be produced by using a polycarbonate diol containing a repeating unit represented by the following formula (1) and/or formula (2), having hydroxyl groups at both ends, and a number average molecular weight of 300 to 50,000. of polymers. [chemical formula 1] (In the formula, R 1 represents a straight-chain or branched hydrocarbon group with 2 to 50 carbons, and n represents an integer of 2 to 50.) [Chemical Formula 2] (In the formula, R 2 represents a linear or branched hydrocarbon group with 10 to 50 carbons.). |