PROBLEM TO BE SOLVED: To provide a molding material causing no separation of incompatible components A and B in processing and having high mechanical strength, and to provide a primer for multilayer composite materials. SOLUTION: The molding material practically comprises (a) 5-95 pts. wt. amino-containing polymer as a polymer A, (b) 95-5 pts. wt. polymer B [wherein, (a)+(b) is 100 pts. wt.] and (c) 1-90 pts. wt. compatibilizing agent comprising an (alkyl)acrylic ester polymer. The material gives high initial adhesion and the adhesion is sufficiently kept in long term contact with an organic medium and in thermal load on composite material. COPYRIGHT: (C)2004,JPO