Method for drying resin pellets

Details Method for drying resin pellets Method for drying resin pellets

2004-10-22

2008-01-08

Lu, Jiping (Department: 3749)

Drying and gas or vapor contact with solids

Process

Gas or vapor pressure is subatmospheric

C034S423000, C034S482000

Reexamination Certificate

active

07316079

ABSTRACT:
An apparatus for drying resin pellets to be supplied to a molding machine under reduced pressure of a desired level by a reduced pressure drying means comprises a preheating means for heating resin pellets to be supplied to the reduced pressure drying means to a temperature level that allows the moisture of the resin pellets to turn into steam under reduced pressure but maintain the resin pellets in an unmolten state.

REFERENCES:
patent: 3969314 (1976-07-01), Grigull
patent: 5570516 (1996-11-01), Huang
patent: 2001-79840 (2001-03-01), None
patent: 2003285330 (2003-10-01), None

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