POLYURETHANE RESIN, METHOD FOR PRODUCING POLYURETHANE RESIN AND RESIN COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a polyurethane resin having excellent curability and adhesiveness to base material as a binder resin for metal ink having excellent conductivity and adhesion to the base material.SOLUTION: A polyurethane resin comprises a polyurethane skeleton (A) having a carboxyl group and an aliphatic oxide ring-opening addition part (B) comprising an alkylene oxide ring-opening addition part or a cycloalkene oxide ring-opening addition part represented by formula (b1) bound to the carboxyl group (nis 1-50; Rand Rindependently represent H, a C1-16 alkyl group or a phenyl group).SELECTED DRAWING: None