POLY-URETHANE RESIN, PREPARATION METHOD OF THE SAME, POLY-URETHANE RESIN COMPOSITION COMPRISING THE SAME, AND POLY-URETHANE MOUNTING PAD

摘要

The present invention is the residue of a polycarboxylic acid moiety of the residues of ethylene glycol having from 2 to 10 carbon atoms, and 1,4-butanediol from 1: 0.3 to 0.7: a polyester polyol containing a molar ratio of 0.3 to 0.7; A chain extender; And a polyisocyanate polyurethane resin comprising the reaction between a compound, method for producing such a polyurethane resin, to a polyurethane support pad produced by using a polyurethane resin composition and the above polyurethane resin containing the polyurethane resin . ;