Other

Idemitsu Petrochemical Co., Ltd.

Terunobu Fukushima

Yoshiaki Saito

Tomokazu Abe

A laminated molding product having a surface member with superior property made of urethane foam and manufacturing process thereof are provided. The laminated molding product includes a thermoplastic resin base and an ether type urethane foam ( ) mainly made of polyether polyol integrally attached by injection compression molding or injection molding under pressure of 50 kg/cm according to average pressure relative to project area of a molding cavity. The urethane foam may alternatively be ester/ether type urethane foam mainly made of polyester polyol and polyether polyol.

Method for producing a molded laminate

A molding die for molding a laminated molding having a molding body with compressible surface members and partially laminated thereonto, where a flow-regulating portion for regulating flow of molten resin flowing toward the surface members and is provided to a die body to regulate the flow of the molten resin flowing on the same plane as the surface members and toward the surface members and . Accordingly, since resin lap at an peripheral end portion of the surface members and , and position shift of the surface members and by the flow of the resin, laminated molding having good quality and appearance can be obtained.

Molding die of laminated molding and manufacturing method of laminated molding

A molding die for shaping a laminated molding including a molding body and a compressible surface member laminated thereonto has centering pins for determining a position of the surface member protrudable and retractable relative to a cavity inside a die body. Accordingly, since the surface member can be accurately and easily positioned and held, position shift of the surface member can be securely prevented. Further, by sinking the centering pins before molten resin is solidified, influence by the centering pins can be eliminated.

Molding die for laminated molding

A method of producing a laminated molding, such as an air current control valve used in an air conditioner for a vehicle, is made to be united with an facing material having the flexible surface of a basic plate made of resin. When the above laminated molding is produced, a used mold should be split into a stationary mold portion and a movable mold portion. Also, a compression core is provided in the movable mold portion. The facing material is temporarily fixed on a mold-face of the stationary mold portion and a mold-face of the compressive core of the movable mold portion opposite the mold-face of the stationary mold portion, during the aforementioned state, a melting synthetic resin is fed into a mold and then the fed melting synthetic resin is compressed by moving the compression core toward the stationary mold portion. By compressing the compression core, it makes a space providing a larger volume than a molding in the cavity which is being fed with the melting synthetic resin; this allows the melting synthetic resin to be quickly fed under a high injection pressure, whereby each cycle process takes place in a shorter time. Furthermore, after the melting synthetic resin is filled in the cavity, the pressure force exerted on the compression core is capable of being decreased, without the flexible facing material being damaged.

Growing community of inventors

Maebashi, Japan

Terunobu Fukushima