US2005194710A1PendingUtilityA1

Methods for preparing agglomerated pellets of polytetrafluoroethylene and molded articles and the agglomerated pellets of polytetrafluoroethylene and molded articles prepared thereby

Assignee: ASAHI GLASS FLUOROPOLYMERS USAPriority: Jun 10, 2002Filed: May 3, 2005Published: Sep 8, 2005

Est. expiryJun 10, 2022(expired)· nominal 20-yr term from priority

Inventors:Pamela Baron Gary Eckrote Tonya James Ronald H. Partridge Timothy Duzick

C08J 2327/18C08J 3/16C08K 5/02C08J 3/22

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Claims

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.

Claims

exact text as granted — not AI-modified

1 . A method for preparing agglomerated pellets of PTFE, said method comprising: 
 (1) wetting a PTFE powder with a solvent, to obtain a wetted PTFE powder;    (2) forming said wetted PTFE powder into agglomerated pellets of PTFE; and    (3) drying said agglomerated pellets of PTFE,    wherein said drying of said agglomerated pellets of PTFE is carried out in a fluidized bed drier.    
   
   
       2 - 52 . (canceled)

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