Co-injection method apparatus for injection molding

Details Co-injection method apparatus for injection molding Co-injection method apparatus for injection molding

1997-07-21

1999-04-06

Heitbrink, Tim

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

425130, 425562, 425564, 425570, 425572, B29C 4523

Patent

active

058913815

ABSTRACT:
Injection molding apparatus including a first mold cavity having an inlet, a second mold cavity having an inlet, a source of a first material to be injected, a source of a second material to be injected, and a co-injection manifold including a nozzle housing including a first outlet adapted to communicate with the first mold cavity inlet, a second outlet adapted to communicate with the second mold cavity inlet, first and second spaced apart inlets respectively adapted to communicate with the first and second sources of material to be injected, a first passageway communicating between the first inlet and the first and second outlets, and a second passageway communicating between the second inlet and the first and second outlets.

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