Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Reexamination Certificate
2006-06-06
2006-06-06
Boykin, Terressa (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
C034S359000, C502S104000, C502S105000, C502S208000, C502S235000, C502S242000, C502S256000, C526S098000, C526S235000, C526S236000
Reexamination Certificate
active
07057010
ABSTRACT:
Process for the drying of polymers containing N or amino, ammonium or spirobicyclic ammonium groups, comprising cationic N-containing groups, and suitable counterions, in which the gelled and washed polymers obtained by polymerization, crosslinkage and optionally alkylation are dried continuously using a gaseous medium under normal pressure or overpressure in a fluidized bed.
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Häubl Georg
Raml Walter
Stanek Michael
Steinwender Erich
Boykin Terressa
DSM Fine Chemcials NFG GmbH & Co KG
Wenderoth , Lind & Ponack, L.L.P.
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