METHOD FOR FUSION BONDING OF RESIN COMPOSITION

摘要

PROBLEM TO BE SOLVED: To efficiently fusion bond a thermoplastic resin molding without deformation by emitting a microwave to the molding obtained by molding thermoplastic resin composition containing microwave heating medium and colored to black by carbon black having specific surface area. SOLUTION: In the case of fusion bonding thermoplastic resin molding, microwave heating medium is contained in thermoplastic resin of at least one of adhered part in the molding. As the medium, ferrite effective by dispersing it in thermoplastic resin or needle titanium oxide is exemplified. Carbon black used in the case of coloring it to black has its specific surface area of 200 m<2> /g or less or particularly preferably 150 m<2> /g or less. Here, the specific surface area is measured by a nitrogen adsorption process. As the microwave, it sufficiently has a wavelength and energy of the degree used for domestic microwave oven, and it can heat it to 100% or higher.