| 8143367 |
Method for the esterification of terephtalic acid with butanediol, method for the manufacture of polybutylene terephtalate and a device therefor |
Michael Reisen |
2012-03-27 |
| 8017717 |
Method of producing polyesters |
Michael Reisen, Ludwig Hoelting, Peter Seidel, Peter Reichwein |
2011-09-13 |
| 7850926 |
Process of discontinuous polycondensation and stirring reactor thereof |
Ferdinand Finkeldei |
2010-12-14 |
| 7550116 |
Method for producing polyesters and a disk ring reactor for the method |
Michael Reisen, Ludwig Holting, Peter Seidel, Peter Reichwein |
2009-06-23 |
| 7244806 |
Method and device for the continuous production of polyesters |
Michael Reisen |
2007-07-17 |
| 7153927 |
Process of continuously producing polyesters or copolyesters |
Michael Reisen |
2006-12-26 |
| 7084234 |
Method and device for producing polyesters, copolyesters and polycarbonates |
Michael Reisen |
2006-08-01 |
| 6967235 |
Method for the production of polybutylene terephthalate |
Eckhard Seidel |
2005-11-22 |
| 6838543 |
Method for producing polycarbonates |
Rudolf Kaempf |
2005-01-04 |
| 6800718 |
Process for producing polytrimethylene terephthalate (PTT) |
Eckhard Seidel, Hans Reitz, Ulrich Thiele, Klaus Mackensen, Donald R. Kelsey +2 more |
2004-10-05 |
| 6512080 |
Process of producing polytrimethylene terephthalate (PTT) |
Donald R. Kelsey, Robert Lawrence Blackbourn, Robert Stephen Tomaskovic, Hans Reitz, Eckhard Seidel |
2003-01-28 |
| 6509438 |
Optimum dipropylene glycol content polytrimethylene terephthalate compositions |
Donald R. Kelsey, Betty Marrou Scardino, Kailash Dangayach, Houston Brown, Hans Reitz +1 more |
2003-01-21 |
| 6326456 |
Process of producing polytrimethylene terephthalate (PTT) |
Donald R. Kelsey, Robert Lawrence Blackbourn, Robert Stephen Tomaskovic, Hans Reitz, Eckhard Seidel |
2001-12-04 |
| 6277947 |
Process of producing polytrimethylene terephthalate (PTT) |
Donald R. Kelsey, Robert Lawrence Blackbourn, Robert Stephen Tomaskovic, Hans Reitz, Eckhard Seidel |
2001-08-21 |
| 5576414 |
Process for generating a vacuum in production of polycarbonate |
Rudolf Kaempf, Walter W. Wenzel, Klaus Mackensen |
1996-11-19 |
| 5563209 |
Process for the reduction of carboxyl-end groups of linear polyesters |
Heinz-Dieter Schumann, Rudolf Kaempf |
1996-10-08 |
| 5055273 |
Apparatus for processing high viscosity materials |
Heinz-Gunter Witt, Ludwig Holting |
1991-10-08 |
| 4680376 |
Process for the continuous production of high-molecular polybutyleneterephthalate |
Helmut Heinze |
1987-07-14 |
| 4499261 |
Process for the continuous production of polybutylene terephthalate of high molecular weight |
Helmut Heinze, Klaus Mackensen, Ferdinand Finkeldei |
1985-02-12 |
