| abstract |
(57) 【Abstract】 PROBLEM TO BE SOLVED: To improve adhesive strength between a hollow molded article of a thermoplastic resin obtained by using a rotational molding method and a urethane foam resin injected into the hollow cavity. Provided is a bonding method, and a plastic product having improved bonding strength between a rotationally molded product of a thermoplastic resin and a urethane foam resin therein, which is manufactured using this method. SOLUTION: A hollow molded product 2 is manufactured by a rotational molding method from a raw material thermoplastic resin containing an inorganic filler in an amount of more than 0.029% by weight and less than 8.6% by weight, and a urethane foam resin is produced in the hollow cavity of this molded product. Inject 3. |