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:
Dec. 08, 2009
Filed:
Nov. 29, 2007
Rainer Dobrawa, Mannheim, DE;
Ralf Widmaier, Mannheim, DE;
Klaus Schnell, Neustadt, DE;
Karl-hermann Strube, Speyer, DE;
Jürgen Nieberle, Wachenheim, DE;
Reinhold Dieing, Speyer, DE;
Bernd DE Potzolli, Bad Dürkheim, DE;
Andreas Gruber, Altrip, DE;
Ulrich Filges, Neustadt, DE;
Martin Meister, Neustadt, DE;
Josef Neutzner, Neustadt, DE;
Wolfgang Bouquet, Deidesheim, DE;
Eberhard Schupp, Grünstadt, DE;
Rainer Dobrawa, Mannheim, DE;
Ralf Widmaier, Mannheim, DE;
Klaus Schnell, Neustadt, DE;
Karl-Hermann Strube, Speyer, DE;
Jürgen Nieberle, Wachenheim, DE;
Reinhold Dieing, Speyer, DE;
Bernd de Potzolli, Bad Dürkheim, DE;
Andreas Gruber, Altrip, DE;
Ulrich Filges, Neustadt, DE;
Martin Meister, Neustadt, DE;
Josef Neutzner, Neustadt, DE;
Wolfgang Bouquet, Deidesheim, DE;
Eberhard Schupp, Grünstadt, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Methods of producing vinyllactam copolymers which include: providing at least one water-soluble N-vinyllactam; providing at least one hydrophobic comonomer; and subjecting the at least one water-soluble N-vinyllactam and the at least one hydrophobic comonomer to free-radical polymerization in an organic solvent in the presence of an initiator, under a combination of process measures selected from the group consisting of A and B; wherein: