反应详情

When the polyamide-imide resin obtained in this invention is made into a varnish, there may be used, as co-solvents, xylene, NISSEKI HISOL-100, 150 (trade names, mfd. by Nippon Petrochemicals Co., Ltd., aromatic hydrocarbons obtained from petroleum, b.p. 80°-300° C.), methyl Cellosolve acetate, ethyl Cellosolve acetate, γ-butyrolactone and the like in combination with the basic organic solvents described above.