Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7847044 | Method of producing water-soluble nonturbid copolymers of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer by polymerization under increased pressure | Rainer Dobrawa, Ralf Widmaier, Eberhard Schupp, Klaus Schnell, Karl-Hermann Strube +5 more | 2010-12-07 |
| 7629425 | Methods of producing water-soluble, non-turbid copolymers of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer | Rainer Dobrawa, Ralf Widmaier, Klaus Schnell, Karl-Hermann Strube, Reinhold Dieing +7 more | 2009-12-08 |
| 6586534 | Agglomerated particles of finely divided polymers which are water-soluble or capable of swelling in water and contain ammonium carboxylate groups | Martin Rubenacker, Reinhard Schneider, Heinrich Hartmann, Walter Denzinger, Axel Kistenmacher | 2003-07-01 |
| 6174946 | Agglomerated particles of water-swellable addition polymers, preparation thereof and use thereof | Martin Rubenacker, Reinhard Schneider, Harald Meyer, Heinrich Hartmann | 2001-01-16 |