Mitsubishi Engineering-plastics Corporation

Hiroyuki Imaizumi

Yoshihiro Kayano

Kei Morimoto

Yasushi Yamanaka

Akimasa Kaneishi

Kazuyuki Takahashi

Ken Shimomai

Masayuki Akada

Motonori Ueda

Kouji Nishida

Kazuaki Ochiai

Tsuneaki Iwakiri

Fumisato Nagano

The present invention relates to a panel-shaped molded product having a laminated structure which is produced from a resin and used for side doors, back doors, hoods, roofs, etc., and exhibits a more excellent finishing accuracy without occurrence of bleed-out along an inner periphery of a frame part and fine distortions on a design part. The panel-shaped molded product of the present invention is a molded product having a laminated structure which is obtained by injection-molding the frame part () on one surface of the plate-shaped design part () wherein an inner peripheral portion () of the frame part () is closely attached to the design part, and has a thickness changing region where a thickness of the frame part is reduced toward the side of a center of the frame part such that a ratio between a width of the thickness changing region and the thickness of the frame part (), and a ratio between a width of the thickness changing region and a width of the frame part () are respectively adjusted to satisfy specific relationships.

Panel-shaped molded product

Provided is a fiber-reinforced thermoplastic resin molded article, which contains reinforcing fibers having a given flattened cross-sectional profile, in which the fiber length distribution of the reinforcing fibers is shifted on the side of long fibers, and which is excellent in mechanical strength, heat resistance, dimensional accuracy such as warpage resistance, and surface appearance.

Fiber-reinforced thermoplastic resin molded article

An apparatus for introducing a pressurized gas includes a pressurized-gas supply-source, a plurality of measuring tanks, a first pressurized-gas supply-line, pressurized-gas supply valves in the first pressurized-gas supply-line, second pressurized-gas supply-lines and pressurized-gas discharge-control valves disposed in the second pressurized-gas supply-lines. A combination of the measuring tanks is determined on the basis of the amount of a pressurized gas required for forming a hollow portion in a molded article, and the pressurized-gas discharge-control valves disposed in the second pressurized-gas supply-lines are controlled on the basis of the above determination.

Pressurized gas introducing device, and injection molding method for moldings having hollow portion

The object the present invention is to provide an exterior molding body for automobile which is reinforced by a long fiber, is excellent in mechanical properties such as bending elastic modulus and bending strength, chemical resistance and heat resistance, is lightened, has high designability and is reduced in the anisotropy of linear expansion coefficient of molding body caused by the fiber orientation at filling thereof to a mold.

Exterior molding body comprising a long fiber reinforced thermoplastic resin

An injection-molding apparatus comprises a mold assembly having a first-molten-resin injection portion for injecting a first molten thermoplastic resin into a cavity of the mold assembly, a second-molten-resin injection portion for injecting a second molten thermoplastic resin into the cavity, and a pressurized-fluid introducing portion for introducing a pressurized fluid into the second molten thermoplastic resin injected into the cavity. The injection-molding apparatus also comprises a first injection cylinder communicating with the first-molten-resin injection portion, and a second injection cylinder communicating with the second-molten-resin injection portion.

Method for injection-molding an article having a hollow portion

A transparent rigid resin molded product comprises a pair of therapeutic films or sheets, and a reinforcing resin composition layer interposed between the pair of thermoplastic films or sheets, and composed of a transparent thermoplastic resin and a glass filler dispersed in the transparent thermoplastic resin, the difference in refractive index between the transparent thermoplastic resin and the glass filler being not more than 0.015, and the content of the glass filler being 1 to 60% by weight based on a total weight of the molded product.

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Hiratsuka, Japan

Hiroyuki Imaizumi