SELF-REPAIRING POLYURETHANE RESIN MATERIAL SELF-REPAIRING POLYURETHANE RESIN SELF-REPAIRING COATING MATERIAL SELF-REPAIRING ELASTOMER MATERIAL METHOD FOR PRODUCING SELF-REPAIRING POLYURETHANE RESIN MATERIAL AND METHOD FOR PRODUCING SELF-REPAIRING POLYURETHANE RESIN

摘要

A polyurethane resin obtained by the reaction of a polyisocyanate compound comprising an aliphatic polyisocyanate and / or an aromatic aliphatic polyisocyanate with an active hydrogen group-containing compound and having self-repellency , Wherein the self-recovering polyurethane resin raw material having an isocyanate group at the molecular end contains an allophanate group and an isocyanate trimer, and the allophanate for an isocyanate trimer Group has a molar ratio of 0.1 to 20.