Toray Industries, Inc.

Kimihiko Hattori

Hideo Matsuoka

Akiyoshi Tamai

Kenichi Utazaki

Nobuhiko Shimizu

Yoshito Kuroda

Tomoyuki Onodera

Shinsuke Hidaka

Yoshiyuki Honda

Masato Sugamori

Kazuyoshi Nakano

A composite molded article has (A) a fiber-reinforced resin molded article (A) including a fiber-reinforced resin having a polyamide-based resin as a matrix resin, a molded article (B) including a modified vinyl-based copolymer, and a molded article (C) including a styrene-based resin layered in this order. A layer (B) including a modified vinyl-based copolymer is interposed as a joining layer between a layer (A) of a fiber-reinforced resin having a polyamide-based resin as a matrix resin and a layer (C) including a styrene-based resin, whereby a composite molded article can be obtained in which the layers (A), (B) and (C) are strongly joined and integrated, and a composite molded article can be obtained which has excellent characteristics not realizable by a single layer of the layer (A) or the layer (C).

Composite molded article and method of manufacturing same

A method of manufacturing a composite molded body includes a first step of introducing an FRP base material into a mold via a slit part provided in the mold, and inserting the FRP base material along a mold cavity; and a second step of injecting a molten thermoplastic resin composition A into the mold cavity to form the FRP base material into a three-dimensional shape and integrate the injected thermoplastic resin composition A and the FRP base material. The method makes it possible to easily and accurately mold a composite molded body of which a desired portion is efficiently and accurately reinforced in the same mold.

Method of manufacturing composite molded body

A fiber-reinforced multilayered pellet includes a sheath layer and a core layer, the sheath layer being made of a resin composition containing a thermoplastic resin (a1) and a fibrous filler (b1), wherein the fibrous filler (b1) has a weight-average fiber length (Lw) of 0.1 mm to less than 0.5 mm and a weight-average fiber length/number-average fiber length ratio (Lw/Ln) of 1.0 to less than 1.8, the core layer being made of a resin composition containing a thermoplastic resin (a2) and a fibrous filler (b2), wherein the fibrous filler (b2) has a weight-average fiber length (Lw) of 0.5 mm to less than 15.0 mm and a weight-average fiber length/number-average fiber length ratio (Lw/Ln) of 1.8 to less than 5.0.

Fiber-reinforced multilayered pellet, molded article molded therefrom, and method of producing fiber-reinforced multilayered pellet

A carbon fiber-reinforced thermoplastic resin composition includes a thermoplastic resin (A), a carbon fiber (B), and a titanium compound (C), an amount of the thermoplastic resin (A) being 10 to 65% by weight, an amount of the carbon fiber (B) being 35 to 90% by weight, based on 100% by weight of the total amount of the thermoplastic resin (A) and the carbon fiber (B), and an amount of the titanium compound (C) being 0.01 to 5 parts by weight, based on 100 parts by weight of the total amount of the thermoplastic resin (A) and the carbon fiber (B).

Carbon fiber-reinforced thermoplastic resin composition, and pellets and molded article thereof

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Nagoya, Japan

Kimihiko Hattori