Patent ID: 11931927
Assignee: MITSUBISHI CHEMICAL CORPORATION
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A method for producing a fiber reinforced plastic product, comprising:
a core preparation step of preparing a core comprising a fusible part and an outer skin covering the fusible part;
a molding step of disposing a prepreg preform inside a mold together with the core, and heating and pressurizing the prepreg preform in the mold to obtain a cured product; and
a core removal step of removing a material of the fusible part from the cured product,
in the molding step, at least a portion of the prepreg preform being pressurized by expansion of the core,
wherein the fusible part comprises a first fusible part and a second fusible part having a melting temperature higher than that of the first fusible part,
the material of the first fusible part and a material of the second fusible part are incompatible with each other, and
in the molding step, the first fusible part melts partially or entirely, while the second fusible part does not melt partially or entirely.