| 6827858 |
Method for separating alkali metal ions from alkoxylates |
Joachim Bader, Hans-Heinrich Bechtolsheimer, Armin Brucker, Gabriele Iffland, Hans-Joachim Klink +3 more |
2004-12-07 |
$280,000 |
| 6624333 |
Method for producing bisphenol alcoxylates |
Stefan Koser, Klaus Mundinger, Wolfgang Kasel, Arend Jouke Kingma |
2003-09-23 |
$314,000 |
| 6329558 |
Method for producing alkylene glycol with a low carbonyl compound content |
Jurgen Mohr |
2001-12-11 |
$273,000 |
| 6265592 |
Method for the continuous production of 1,3-dioxolan-2-ones |
Stefan Birnbach, Jurgen Mohr, Regina Benfer, Walter Bieg, Jarren Peters +3 more |
2001-07-24 |
$325,000 |
| 6235940 |
Method for producing oxalkylated amines or alcohols |
Juergen Mohr |
2001-05-22 |
$242,000 |
| 6207022 |
Purification of crude (meth) acrylic acid |
Gerhard Nestler, Holger Herbst, Helmut Lermer, Hans Martan, Herbert Vogel +1 more |
2001-03-27 |
$357,000 |
| 6072076 |
Continuous preparation of alkyl esters of (meth)acrylic acid |
Willi Schmidt, Matthias Geisendorfer, Alexander Weck, Holger Herbst, Gerhard Nestler |
2000-06-06 |
|
| 5914427 |
Preparation of .omega.-hydroxyesiers of .alpha.,.beta.-unsaturated carboxylic acids |
Gerhard Nestler |
1999-06-22 |
|
| 5900125 |
Continuous preparation of alkyl esters of (meth)acrylic acid and apparatus for this purpose |
Herbert Exner, Karl Baur, Christiane Potthoff, Albrecht Dams |
1999-05-04 |
|
| 5883288 |
Continuous preparation of alkyl esters of (meth)acrylic acid |
Gabriele Iffland, Albrecht Dams, Alexander Weck, Heinrich Aichinger, Holger Herbst +4 more |
1999-03-16 |
|
| 5877326 |
Aqueous phase process for preparing N-substituted imidazoles |
Gisela HIEBER, Klaus Ebel, Jürgen Schröder, Carsten Groning, Bernd Ruge |
1999-03-02 |
|
| 5817865 |
Preparation of acrylic acid and esters |
Otto Machhammer, Gerd-Jurgen Engert, Theo Proll |
1998-10-06 |
|
| 5811574 |
Continuous preparation of alkyl esters of (meth)acrylic acid and apparatus for this purpose |
Herbert Exner, Karl Baur, Christiane Potthoff, Albrecht Dams |
1998-09-22 |
|
| 5734074 |
Continuous preparation of alkyl esters of (meth) acrylic acid |
Herbert Exner, Karl Baur, Christiane Potthoff |
1998-03-31 |
|
| 5663421 |
Separation of a diester of (meth)acrylic acid with a C.sub.4 -C.sub.6 -alkanediol |
Helmut Lermer, Ulrich Rauh, Gerhard Nestler |
1997-09-02 |
|
| 5637760 |
Preparation of 1,4-butanediol mono(meth)acrylate by esterification of (meth)acrylic acid with 1,4-butanediol, in which an aqueous solution of unconverted 1,4-butanediol is obtained |
Helmut Lermer, Klaus Bittins, Gerhard Nestler, Gundo Brauch |
1997-06-10 |
|
| 5618971 |
Separation of a mono(meth)acrylate of a C.sub.4 -C.sub.6 alkanediol from an aqueous solution containing a mono(methacrylate) of a C.sub.4 -C.sub.6 alkanediol and the said C.sub.4 -C.sub.6 alkanediol |
Helmut Lermer, Ulrich Rauh, Gerhard Nestler |
1997-04-08 |
|
| 5468871 |
Preparation of N-substituted pyrazoles |
Klaus Ebel, Juergen Schroeder, Carsten Groening, Hans Rupert Merkle |
1995-11-21 |
|
| 5232605 |
Breakdown of waste waters containing aromatic nitro compounds |
Karl Baur, Ulrich Kanne, Thomas Papkalla |
1993-08-03 |
|
| 5117004 |
Preparation of imidazole-2-carboxylic acids |
Uwe Kempe, Hermann Koehler |
1992-05-26 |
|
| 5015785 |
Preparation of mixtures of isomeric cresols with a molar ratio of para- to meta-cresol of at least 0.6:1 to 10:1 |
Werner Steck, Helmut Lermer, Matthias Schwarzmann |
1991-05-14 |
|
| 5003089 |
Preparation of cyclic 6-membered to 8-membered vinylene-1,2-dioxy compounds |
Franz Merger, Juergen Frank, Wolfgang Hoelderich, Manfred Sauerwald |
1991-03-26 |
|
| 4973751 |
Preparation of unsaturated compounds by elimination reaction |
Eckhard Hickmann, Herbert Krug |
1990-11-27 |
|
| 4950763 |
Preparation of ketones |
Charles Schommer, Klaus Ebel, Matthias Irgang, Wolfgang Hoelderich, Harald Rust |
1990-08-21 |
|
| 4943671 |
Reductive dehalogenation of organic halogen compounds |
Manfred Sauerwald, Herbert Krug, Matthias Irgang |
1990-07-24 |
|
