Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-12-02
2010-02-09
Cain, Edward J (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
Reexamination Certificate
active
07659329
ABSTRACT:
A process for reducing fluorosurfactant content of a stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion comprising passing said stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion through a fixed bed of ion exchange resin beads comprising a polymer and functional groups to reduce fluorosurfactant content, the ion exchange resin beads being monodisperse.
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Amberjet 4400 OH, Rohm Haas, Product Data Sheet (2000).
Noelke Charles Joseph
O'Brien William George
Swearingen Steven H.
Cain Edward J
E. I. du Pont de Nemours and Company
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