Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10837140 | Use of a coating layer with a styrene-butadiene copolymer on a paper substrate for blocking oxygen transfer | Hermann Seyffer, Carmen-Elena Cimpeanu, Theo Smit, Nico Veling, Dirk Lawrenz +1 more | 2020-11-17 |
| 10837141 | Use of a coating layer with an acrylate polymer on a paper substrate for blocking oxygen transfer | Hermann Seyffer, Carmen-Elena Cimpeanu, Theo Smit, Nico Veling, Dirk Lawrenz +1 more | 2020-11-17 |
| 9334398 | Aqueous polymer dispersion obtainable by free-radically initiated emulsion polymerization in the presence of lignosulfonate | Rabie Al-Hellani, Carmen-Elena Cimpeanu, Dirk Lawrenz, Kristina Georgieva, Anja Song | 2016-05-10 |
| 8637160 | Polymer dispersions of vinylaromatic compounds and acrylate monomers prepared in the presence of seed latex and carbohydrate compounds | Elitsa Evstatieva, Aurelie Morel, Dirk Lawrenz, Hermann Seyffer | 2014-01-28 |
| 8613833 | Aqueous suspensions of fine-particulate fillers, method for the manufacture thereof and use thereof for the manufacture of filler-containing papers | Anton Esser, Joerg Nieberle | 2013-12-24 |
| 8530563 | Process for the preparation of aqueous polymer dispersions from a aromatic compound, a conjugated aliphatic diene and an ethylenically unsaturated carbonitrile | Elitsa Evstatieva, Dirk Lawrenz | 2013-09-10 |
| 8449721 | Aqueous suspensions of fine-particulate fillers, method for the manufacture thereof and use thereof for the manufacture of fluid-containing papers | Anton Esser, Joerg Nieberle | 2013-05-28 |
| 8343312 | Polymer-pigment hybrids for use in papermaking | Norbert Mahr, Dieter Meck, Rainer Blum, Ralf Hemel, Norbert Gispert +1 more | 2013-01-01 |
| 8329803 | Process for the preparation of aqueous polymer dispersions from a aromatic compound, a conjugated aliphatic diene and an ethylenically unsaturated carbonitrile | Elitsa Evstatieva, Dirk Lawrenz | 2012-12-11 |
| 8034885 | Free-radical polymerization process producing aqueous polymer dispersion with low residual monomer content utilizing oil and water soluble initiators | Jun Gao, Xiang-Ming Kong, Klaus-Dieter Hungenberg | 2011-10-11 |
| 8003716 | Aqueous polymer dispersions based on copolymers formed from vinylaromatics and conjugated aliphatic dienes, processes for preparation thereof and use thereof | Elitsa Evstatieva, Dirk Lawrenz, Johannes Jan-Bessel Minderhoud, Guillermo Arens | 2011-08-23 |
| 7858154 | Paper coating slip based on pigment-polymer hybrids | Hubertus Kroener | 2010-12-28 |
| 7662871 | Aqueous polymer dispersions, based on copolymers of vinyl aromatics and butadiene, method for their production and their use as sizing agents for paper | Roland Ettl, Christoph Hamers | 2010-02-16 |
| 7547741 | Preparation of polymer powders | Joachim Pakusch, Markus Koppers, Wolfgang Gaschler, Heinrich Sack, Hans-Juergen Denu | 2009-06-16 |
| 5324772 | Aqueous polymer dispersion | Guenter Eckert | 1994-06-28 |
| 5221284 | Method of coating leather using aqueous synthetic resin dispersions | Martin Meister, Guenter Eckert, Albrecht Zosel | 1993-06-22 |
| 5039765 | Preparation of ethylene polymers using a Ziegler catalyst system, and ethylene polymers prepared in this manner and having less odor | Roland Saive, Guido Funk, Rainer Konrad, Peter Bauer | 1991-08-13 |
| 5028265 | Wax dispersions having a high solids content | Gernot Koehler | 1991-07-02 |
| 4996259 | Preparation of aqueous synthetic wax dispersions | Gernot Koehler, Norbert Hasenbein, Lothar Schlemmer, Wolfram Dietsche | 1991-02-26 |
| 4814308 | Preparation of homopolymers and copolymers of ethene by Phillips catalysis | Rainer Konrad, Guido Funk, Rudolf Mueller-Mall, Guenther Schweier | 1989-03-21 |