Sumitomo Chemical Company, Limited

Hosokawa Seisakusho Co., Ltd.

Shohei Masui

Nobuhiro Usui

Toshihiro Hosokawa

Ryuichi Ishitsubo

Masahito Matsumoto

Kiyoshi Mitsui

Kanemitsu Oishi

Takahisa Hara

Yoshiaki Togawa

Shigeyoshi Matubara

Shigeyoshi Matsubara

A multilayer molded article comprises a resin body and a skin material which covers a part of the surface of the resin body so that an edge part of the skin material present on the surface of the resin body is placed in a groove formed on the surface of the resin body. The article is produced by providing an unclosed mold comprising a lower mold having at least one pin for fixing the edge part of the skin material at a position where the edge part of the skin material is placed and an upper mold having a kick for forming the groove, placing the skin material on the lower mold and fixing the edge part of the skin material with the pin, supplying a mass of resin melt between the skin material and the lower mold, and closing the upper and lower molds to form the multilayer molded article.

Process for producing a multilayer molded article

An apparatus for producing a multilayer molded article including a resin body and at least one sheet of a skin material, an edge part of which is present in a surface area of the resin body. The apparatus includes a mold, and a clamping device for clamping an edge part of a skin material or mated edge parts of adjacent skin materials during molding.

Apparatus for producing a multilayer molded article

A method for press molding a thermoplastic resin which includes the steps of supplying a resin melt in a cavity of an unclosed mold through at least one passage formed in a wall of the mold upper and lower halves of which are respectively attached to upper and lower platens of a vertically movable press so that the supplied resin melt contacts with surfaces of the upper and lower halves of the mold, pressing the resin melt in the mold by closing the mold so that the mold closing is still being carried out after the supply of the resin melt is finished or the mold closing is started at the same time as the supply of the resin melt is finished, and then cooling the molded resin in the mold.

Press molding of thermoplastic resins

A molded article of a fiber-reinforced thermoplastic resin which suffers less deformation and has good appearance is produced by a method which includes the steps of: supplying at least two porous fibrous sheets, supplying a resin melt of a thermoplastic resin in a space between the porous fibrous sheets, and forcing the resin melt to fill the pores of the porous sheets by resin supplying pressure and/or pressing pressure and to reach outer surfaces of the porous fibrous sheet.

Method for producing molded article of fiber reinforced thermoplastic

A multilayer molded article comprising a resin body and at least one sheet of a skin material an edge part of which is present in a surface area of the resin body is efficiently produced by clamping an edge part of a skin material or mated edge parts of adjacent skin materials during molding.

A method of manufacturing a laminated body consisting of a synthetic resin member provided with a layer member thereon, in which the member is bent to cover the edges of the resin member. The method includes the compression, resulting from a male mold and a female mold approaching each other, of the layer member and molten resin. The female mold has flanges mounted on its edges to permit the layer member to cover the edges of the resin during compression. Molten resin materials are supplied between the male and female molds prior to subsequent to the compression.

Method of manufacturing a laminated body

A process for the formation of a laminated body consisting of an upper layer member which covers a hardened synthetic resin is disclosed. The process includes the compression, resulting from a female mold and a male mold approaching each other, of the layer member and molten resins. The final engagement of the molds permits the cutting of the layer member so as to form or shape the ultimate laminated body.

A multilayer molded article including a resin body and a skin material having little or no wrinkles or breakage in the skin material is molded by molding a resin melt and the skin material in the mold while removing the air trapped between the skin material and the mold.

Process for producing a multilayer article

A multi-layer molded article including a thermoplastic resin body having a plurality of ribs and/or bosses on one side and a layer of a foam which is laminated on the side of the thermoplastic resin body having ribs and/or bosses is produced by a press molding method. The method involves the steps of supplying a foam between upper and lower halves of a mold, one of which has plurality of slits and/or holes corresponding to the ribs and/or bosses to be formed, supplying a quantity of a plasticized thermoplastic resin melt between the already supplied foam and the half of the mold not having any slit or hole, moving at least one half of the mold during supplying the thermoplastic resin or just after completion of supply of the thermoplastic resin to press mold the thermoplastic resin so that the plasticized thermoplastic resin breaks at least a part of areas of the foam on the slits and/or holes of the half of the mold to flow into the slits and/or holes and to form the ribs and/or bosses.

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Aichi, Japan

Shohei Masui