Mold and method for producing two-color injection-molded parts

Details Mold and method for producing two-color injection-molded parts Mold and method for producing two-color injection-molded parts

2011-03-01

2011-03-01

Wyrozebski, Kat (Department: 1744)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

C264S328700

Reexamination Certificate

active

07897094

ABSTRACT:
A mold and a method for producing two-color injection-molded parts involves simultaneous injection of two kinds of molding material, in which a pressure difference between two kinds of molding materials is induced so that one of the molding materials is infiltrated into and bonded to the other molding material during solidification. The method for producing two-color injection-molded parts may include simultaneously injecting a first material and a second material to a first gate and a second gate to be filled in a first cavity and a second cavity, and closing the second gate such that the first molding material, which is not solidified, pushes a slide mold provided between a first mold block and a second mold block using a holing pressure of the first gate and is infiltrated into an unsolidified layer of the second molding material and solidified.

REFERENCES:
patent: 2003/0001411 (2003-01-01), Gedritis et al.
patent: 2008/0023979 (2008-01-01), Trillat et al.
patent: 2000-127862 (2000-05-01), None
patent: 97-011562 (1997-07-01), None
patent: 10-2006-0025193 (2006-03-01), None
patent: 10-2007-0053628 (2007-05-01), None

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