Concentrating evaporators – Superheating and pressure release – With extruder
Reexamination Certificate
2006-08-08
2006-08-08
Manoharan, Virginia (Department: 1764)
Concentrating evaporators
Superheating and pressure release
With extruder
C159S043100, C159S017400, C159SDIG010, C528S501000
Reexamination Certificate
active
07087139
ABSTRACT:
The present invention provides an apparatus and method of reducing volatiles in a mass processable polymer. The apparatus includes a multi-chambered devolatilizer having first and second collectors contained therein. In one embodiment, the invention provides a method that includes passing the mass processable polymer stream from a polymerization process to a first devolatilizer. The method continues by passing the polymer stream from the first devolatilizer to the multi-chambered devolatilizer. The apparatus and method allows for the production of a polymer having less than 100 ppm of volatiles.
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Berti Douglas A.
Griffith Aron T.
Sosa Jose
Fina Technology, Inc.
Krueger Tenley R.
Manoharan Virginia
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