Process and apparatus for compounding and injection-moulding...

Details Process and apparatus for compounding and injection-moulding... Process and apparatus for compounding and injection-moulding...

2008-03-12

2010-06-29

Heitbrink, Jill L (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

C264S328180, C425S145000, C425S169000

Reexamination Certificate

active

07744788

ABSTRACT:
Disclosed is an injection moulding machine, comprising an extruder for continuously producing a melt of a desiccant-filled polymer; at least one injection device fluidly connected with the extruder by a first conduit to receive melt and including an injection ram movable to a forward position for injection of melt into an injection mould and a rear position for introduction of melt into the injection device; characterized in that the injection moulding machine further comprises a sensor which allows determination of the viscosity or melt flow index of the desiccant-filled polymer. Further disclosed is a method of operating such a compounder-type injection moulding machine.

REFERENCES:
patent: 3559464 (1971-02-01), Foust
patent: 6071462 (2000-06-01), Putsch
patent: 6854968 (2005-02-01), Zimmet
patent: 7090481 (2006-08-01), Seta
patent: 2007/0235907 (2007-10-01), Christel
patent: 2621525 (1989-04-01), None
patent: 96/33108 (1996-10-01), None
patent: 2005/053931 (2005-06-01), None

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