Teijin Limited

Hidenori Aoki

Hodaka Yokomizo

Shuhei Suzuki

Takaya Fujii

Masahiro Kitagawa

Yukino Oosawa

A molding material for a multi-layered structure, includes a thermoplastic resin layer (X) including carbon fibers (A) having a weight-average fiber length of 0.01 mm to less than 3 mm; and a thermoplastic resin layer (Y) including carbon fibers (B) having a weight-average fiber length of 3 mm to 100 mm, in which a density parameter Pof the thermoplastic resin layer (Y) expressed by the following Equation (1) is 1&#xd7;10to less than 1&#xd7;10, and in which a density parameter Pof the thermoplastic resin layer (X) expressed by the following Equation (1) is more than 1&#xd7;10:=()/&#x2003;&#x2003;(1),

Molding material for multi-layered structure and molded article of multi-layered structure

A method for producing a fiber-reinforced resin shaped product, by clamping and press-molding a molding material containing reinforcing fibers and a thermoplastic resin as a matrix in molds having an upper mold and a lower mold. The method includes: disposing the molding material heated in a plastic state, between the upper mold and the lower mold; initiating the clamping to apply a force in a substantially clamping direction to a certain site of the molding material; starting deformation of the molding material in the substantially clamping direction; applying a force in the substantially clamping direction to a fixing site which is at least a part of a substantially outer peripheral end portion of the molding material but is different from the certain site; pressing and fixing the fixing site, and completing the clamping to obtain a fiber-reinforced resin shaped product having an edge portion.

Method for producing fiber-reinforced resin shaped product

There is provided a plate-shaped carbon fiber reinforced molding material comprising a thermoplastic resin, carbon fibers (A) and carbon fibers (B), wherein:

Carbon fiber reinforced molding material and shaped product

A shaped product of a fiber-reinforced composite material includes a well-shaped part and a surface-shaped part, in which the well-shaped part includes a fiber-reinforced composite material C including both discontinuous reinforcing fibers and a thermoplastic resin, and the surface-shaped part includes a thermoplastic-resin-based material, and the shaped product includes no irregular-shape portion in the well-shaped part and no weld at a boundary edge between the well-shaped part and the surface-shaped part.

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Osaka, Japan

Hidenori Aoki