Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Reexamination Certificate
2008-01-22
2008-01-22
Lee, Edmund H. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
C264S255000, C425S117000, C425S577000, C425S814000
Reexamination Certificate
active
07320768
ABSTRACT:
An object of the present invention is to provide a metal mold of a simple structure that can be used for injection molding a combined product composed of some molded pieces regardless of the accuracy and the shape of a desired combined product and a method of molding such combined product. A metal mold M for injection molding comprises a first piece mold5for molding a first molded piece2, a second piece mold4for molding a second molded piece6, and a pin core8for forming an insertion hole1. A method of injection molding a combined product P comprises the steps of injection molding the first molded piece2from a first plastic resin A, removing the pin core8that is used for forming the insertion hole1in the first molded piece2in the former step from the first molded piece2, and injection molding the second molded piece4from a second plastic resin B.
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Kakuichikasei Co., Ltd.
Lee Edmund H.
Milde & Hoffberg LLP
Mishima Giken Co., Ltd.
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