HYDROXY COMPOUND, PROCESS FOR PRODUCTION THEREOF, AND PREPOLYMER AND POLYURETHANE EACH COMPRISING THE HYDROXY COMPOUND

摘要

A hydroxy compound is provided whereby a polyurethane excellent in elongation property can be produced. A hydroxy compound represented by the formula B-A m , wherein A is a univalent group which has a terminal hydroxy group and a carbonate chain composed of an ether unit produced by ring-opening of a monoepoxide and a carbonyloxy unit [-OC(O)-] linked to each other, and B is a m-valent residue produced by removing all hydroxy groups from a polycarbonate having m hydroxy groups at the terminals, provided that -O-R- in the repeating unit [-OC(O)-O-R-] of the polycarbonate is an ether unit other than an ether unit produced by ring-opening of a monoepoxide.