Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Producing multilayer work or article
Reexamination Certificate
2005-03-15
2005-03-15
Colaianni, Michael P. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Producing multilayer work or article
C264S510000, C264S572000
Reexamination Certificate
active
06866811
ABSTRACT:
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.
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Imaizumi Hiroyuki
Kayano Yoshihiro
Ochiai Kazuaki
Colaianni Michael P.
Fontaine Monica A.
Mitsubishi Engineering-Plastics Corp.
Wenderoth , Lind & Ponack, L.L.P.
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