The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 2006
Filed:
Jan. 15, 2004
Applicants:
Michael Stanek, Linz, AT;
Georg Häubl, Linz, AT;
Walter Raml, Hellmonsödt, AT;
Erich Steinwender, Linz, AT;
Inventors:
Michael Stanek, Linz, AT;
Georg Häubl, Linz, AT;
Walter Raml, Hellmonsödt, AT;
Erich Steinwender, Linz, AT;
Assignee:
DSM Fine Chemcials NFG GmbH & Co KG, Linz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 6/00 (2006.01);
U.S. Cl.
CPC ...
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.