Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1995-09-05
1996-05-28
Seidleck, James J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
2641761, 26417719, 264182, 2642096, 26421124, 525191, 525198, 525462, 525469, 528198, 528502R, C08G 6400
Patent
active
055212751
ABSTRACT:
The efficiency of a redistribution catalyst during polycarbonate redistribution is improved by employing an extruder screw design that provides a melt seal between the extruder throat and the vacuum port. A melt seal exists when the free volume within the extruder is sufficiently filled with molten resin so as to prevent the passage of gases between sections of the extruder.
REFERENCES:
patent: 5414057 (1995-05-01), Campbell et al.
Dardaris David M.
Gohr Eric T.
McCloskey Patrick J.
Wu Pin-pin
General Electric Company
Mosley Terressa M.
Pittman William H.
Seidleck James J.
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