Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-06-28
2005-06-28
Wu, David W. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C523S223000, C521S079000, C524S265000, C524S366000, C524S545000, C524S546000, C524S440000, C524S439000
Reexamination Certificate
active
06911489
ABSTRACT:
PTFE pellets with good bulk density, homogeneity, and flowability properties may be obtained by:(1) wetting a PTFE powder with a solvent, to obtain a wetted PTFE powder;(2) forming the wetted PTFE powder into agglomerated pellets of PTFE; and(3) drying the agglomerated pellets of PTFE pellets, in which the drying of the agglomerated pellets of PTFE is carried out in a fluidized bed drier. The PTFE pellets so obtained may be used to prepare molded articles of PTFE.
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Baron Pamela J.
Duzick Timothy C.
Eckrote Gary
James Tonya
Partridge Ronald
Asahi Glass Fluoropolymers USA, Inc.
Hu Henry S.
Wu David W.
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