Polymer treating method and apparatus

Details Polymer treating method and apparatus Polymer treating method and apparatus

2008-05-13

2008-05-13

Boykin, Terressa (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From aldehyde or derivative thereof as reactant

C264S176100, C264S219000, C422S131000, C528S480000, C528S481000, C528S482000

Reexamination Certificate

active

07371808

ABSTRACT:
A polymer treating method has the steps of: reacting a polymer compound with a reaction agent in a reaction vessel to generate a polymer treatment product; discharging the polymer treatment product containing the reaction agent from the reaction vessel; depressurizing the polymer treatment product; introducing the polymer treatment product into a degassing extruder; separating the reaction agent from the polymer treatment product through a vent box that is connected to upstream of the degassing extruder and that has a volume of equal to or more than that of the reaction vessel; and extruding the polymer treatment product from the degassing extruder.

REFERENCES:
patent: 6258928 (2001-07-01), Baird et al.
patent: 6580005 (2003-06-01), Yazaki et al.
patent: 6794476 (2004-09-01), Machida et al.
patent: 2001-253967 (2001-09-01), None
patent: 2002-249618 (2002-09-01), None

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