| 6110267 |
Pigment combinations for inks for the intaglio printing of illustrations, having improved rheological properties |
Rainer Winter, Ibrahim Zidan, Ulrich Ott |
2000-08-29 |
| 5194665 |
Surfactants based on hydroxynaphthoic esters and preparation and use thereof |
Heinz Uhrig, Erich Ackermann |
1993-03-16 |
| 5137576 |
Quinacridones having selectively adjusted triboelectric effects |
Hans-Tobias Macholdt, Adolf Kroh, Erwin Dietz |
1992-08-11 |
| 5102459 |
Use of colorants for recording fluids |
Josef Ritter |
1992-04-07 |
| 5073579 |
Process for enhancing the electrostatic chargeability of powder coatings of powders, and the use thereof for surface-coating solid objects |
Hans-Tobias Macholdt, Claus Godau, Albrecht Manz |
1991-12-17 |
| 5069994 |
Use of colorless, intensely fluorinated ammonium and iminium compounds as charge control agents for electrophotographic recording processes |
Jorg Gitzel, Hans-Tobias Macholdt, Frank Wehowsky, Gunther Prossel |
1991-12-03 |
| 5061585 |
Blue coloring agent for electro-photographic copying processes with positive control action |
Hans-Tobias Macholdt |
1991-10-29 |
| 5021473 |
Process for enhancing the electrostatic chargeability of powder coatings or powders, and the use thereof for surface-coating solid objects |
Hans-Tobias Macholdt, Claus Godau, Albrecht Manz |
1991-06-04 |
| 5015676 |
Process for enhancing the electrostatic chargeability of powder coatings or powders, and the use thereof for surface-coating solid objects |
Hans-Tobias Macholdt, Claus Godau, Albrecht Manz |
1991-05-14 |
| 4980425 |
Surfactants based on hydroxynaphthoic esters and preparation and use thereof |
Heinz Uhrig, Erich Ackermann |
1990-12-25 |
| 4957841 |
Specifically influencing the triboelectric effect of azo pigments |
Hans-Tobias Macholdt, Franz Schui, Reinhold Deubel |
1990-09-18 |
| 4859728 |
Pasty pigment formulations, production and use thereof |
Manfred Schneider, Ulrich Ott, Manfred Zimmermann |
1989-08-22 |
| 4786575 |
Pigment for electrophotographic recording processes |
Hans-Tobias Macholdt, Helmut Troster |
1988-11-22 |
| 4777105 |
Magenta colorant for electrophotographic recording processes |
Hans-Tobias Macholdt, Adolf Kroh |
1988-10-11 |
