COATING MATERIAL FOR BONDING POLYBUTYLENE TEREPHTHALATE MATERIAL AND METALLIC MATERIAL, AND COATED ARTICLE FOR BONDING POLYBUTYLENE TEREPHTHALATE MATERIAL AND METALLIC MATERIAL PRODUCED BY USING THE COATING MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a coating material capable of firmly bonding an objective polybutylene terephthalate material to a prescribed bonding face of a metallic material, and to provide a coated article produced by using the coating material.SOLUTION: The objective coating material is produced by combining ≤80 wt.% of a polybutylene terephthalate resin with ≥20 wt.% of a hydroxyl-containing polyester resin, adding these two resins to a solvent together with 0-50 wt.% of a curing agent based on the hydroxyl-containing polyester resin to dissolve the hydroxyl-containing polyester resin, and preparing the polybutylene terephthalate resin in a dissolved or finely dispersed state.