Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Reexamination Certificate
2011-08-09
2011-08-09
Boykin, Terressa M (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
C264S176100, C264S219000, C525S085000
Reexamination Certificate
active
07994275
ABSTRACT:
The disclosure defined by this invention provides a method for extruding thermoplastic polymers which includes the step of creating high pressure steam in the extruding apparatus so as to prevent scorching and to solubilize contaminants. The method can be used in a neutralization step of ionomers in an extrusion process to obtain an extrudate having good light transmission and improved impact resistance.
REFERENCES:
patent: 5468803 (1995-11-01), Takahashi et al.
Bolton Edwin
Bolton Nelson
Smith W. Novis
Wimmer Elizabeth
AGP Plastics, Inc.
Boykin Terressa M
Lezdey John
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