| Patent | Date |
|---|
Monitoring of the stoichiometric ratio in the reaction of nitroaromatics with hydrogen
Grant 8,895,783 - Raichle , et al. November 25, 2 | 2014-11-25 |
Process for preparing aromatic isocyanates
Grant 8,829,232 - Penzel , et al. September 9, 2 | 2014-09-09 |
Process for the production of isocyanates, preferably diisocyanates and polyisocyanates with solvent recirculation
Grant 8,759,569 - Schelling , et al. June 24, 2 | 2014-06-24 |
Process for preparing toluenediamine by hydrogenation of dinitrotoluene
Grant 8,609,899 - Raichle , et al. December 17, 2 | 2013-12-17 |
Method of measuring entry of water into phosgene-conducting plants
Grant 8,519,179 - Schelling , et al. August 27, 2 | 2013-08-27 |
Monitoring Of The Stoichiometric Ratio In The Reaction Of Nitroaromatics With Hydrogen
App 20130211141 - RAICHLE; Andreas ; et al. | 2013-08-15 |
Process For Working Up An Isocyanate-comprising Stream
App 20120289746 - Penzel; Ulrich ; et al. | 2012-11-15 |
Method Of Measuring Entry Of Water Into Phosgene-conducting Plants
App 20120108844 - Schelling; Heiner ; et al. | 2012-05-03 |
Process For The Production Of Isocyanates, Preferably Diisocyanates And Polyisocyanates With Solvent Recirculation
App 20120101299 - Schelling; Heiner ; et al. | 2012-04-26 |
Process For Preparing Toluenediamine By Hydrogenation Of Dinitrotoluene
App 20110295039 - Raichle; Andreas ; et al. | 2011-12-01 |
Process For Preparing Aromatic Isocyanates
App 20110251425 - Penzel; Ulrich ; et al. | 2011-10-13 |
Process for distillatively removing dinitrotoluene from process wastewater from the preparation of dinitrotoluene by nitrating of toluene with nitrating acid
Grant 7,928,270 - Penzel , et al. April 19, 2 | 2011-04-19 |
Method for the continuous production of isocyanates
Grant 7,851,648 - Sohn , et al. December 14, 2 | 2010-12-14 |
Method For Producing Aromatic Amines Or Aliphatic Amino Alcohols
App 20100015012 - Vanoppen; Dominic ; et al. | 2010-01-21 |
Method for producing aromatic amines or aliphatic amino alcohols
Grant 7,595,424 - Vanoppen , et al. September 29, 2 | 2009-09-29 |
Separation of a substance mixture consisting of hydrogen chloride and phosgene
Grant 7,584,629 - Sohn , et al. September 8, 2 | 2009-09-08 |
Method for separating out solvent from a reaction mixture resulting from an isocyanate synthesis and for purifying this solvent
Grant 7,524,405 - Sohn , et al. April 28, 2 | 2009-04-28 |
Process For The Separation By Distillation Of Dinitrotoluene From Process For The Separation By Distillation Of Dinitrotoluene From Process For The Separation By Distillation Of Dinitrotoluene From Process Wastewater From The Preparation Of Dinitrotoluene By Nitration Of Toluene By Means Of Nitratin
App 20090043135 - Penzel; Ulrich ; et al. | 2009-02-12 |
Method for the production of amines
Grant 7,468,461 - Van Laar , et al. December 23, 2 | 2008-12-23 |
Ni/TiO.sub.2 hydrogenation catalyst
Grant 7,408,086 - Vanoppen , et al. August 5, 2 | 2008-08-05 |
Method For The Production Of Amines
App 20080177111 - van Laar; Frederik ; et al. | 2008-07-24 |
Method for Producing Aromatic Amines or Aliphatic Amino Alcohols
App 20080146848 - Vanoppen; Dominic ; et al. | 2008-06-19 |
Method for the distillative recovery of toluylenediamine
Grant 7,342,134 - Knoesche , et al. March 11, 2 | 2008-03-11 |
Isocyanate Production Method
App 20070232827 - Wolfert; Andreas ; et al. | 2007-10-04 |
Method for the production of amines
App 20070149814 - van Laar; Frederik ; et al. | 2007-06-28 |
Process for preparing methylenedianiline and methylenebis (phenylisocyanate)
Grant 7,230,130 - Strofer , et al. June 12, 2 | 2007-06-12 |
Method for the distillative recovery of toluylenediamine
App 20070083065 - Knoesche; Carsten ; et al. | 2007-04-12 |
Method for the continuous production of isocyanates
App 20060252960 - Sohn; Martin ; et al. | 2006-11-09 |
Method for the production of amines
Grant 7,091,383 - Vanoppen , et al. August 15, 2 | 2006-08-15 |
Separation of a substance mixture consisting of hydrogen chloride and phosgene
App 20060123842 - Sohn; Martin ; et al. | 2006-06-15 |
Method for the production of isocyanates
App 20060116529 - Wolfert; Andreas ; et al. | 2006-06-01 |
Method for separating isocyanates out from a reaction mixture
App 20060089507 - Sohn; Martin ; et al. | 2006-04-27 |
Method for seperating out solvent from a reaction mixture resulting from an isocyanate synthesis and for purifying this solvent
App 20060011463 - Sohn; Martin ; et al. | 2006-01-19 |
Method for the production of amines
App 20050177003 - Vanoppen, Dominic ; et al. | 2005-08-11 |
Light isocyanates, method for producing them and use thereof
Grant 6,900,348 - Reif , et al. May 31, 2 | 2005-05-31 |
Method and device for reducing byproducts in the mixture of educt streams
Grant 6,896,401 - Wolfert , et al. May 24, 2 | 2005-05-24 |
Method and device for the continuous production of organic mono or polyisocyanates
Grant 6,867,324 - Wolfert , et al. March 15, 2 | 2005-03-15 |
Process for preparing methylenedianiline and methylenebis (phenylisocyanate)
App 20050014975 - Strofer, Eckhard ; et al. | 2005-01-20 |
Process for preparing methylenedianiline and methylenebis(phenyl isocyanate)
Grant 6,831,192 - Strofer , et al. December 14, 2 | 2004-12-14 |
Ni/tio2 hydrogenation catalyst
App 20040147783 - Vanoppen, Dominic ; et al. | 2004-07-29 |
Method and device for reducing byproducts in the mixture of educt streams
App 20040091406 - Wolfert, Andreas ; et al. | 2004-05-13 |
Method and device for the continous production of organic mono or polyisocyanates
App 20030166965 - Wolfert, Andreas ; et al. | 2003-09-04 |
Process for preparing methylenedianiline and methylenebis(phenyl isocyanate)
App 20020132953 - Strofer, Eckhard ; et al. | 2002-09-19 |
Method for the production of methylenedi(phenylamine and methylenedi(phenyl isocyanate)
Grant 6,433,219 - Strofer , et al. August 13, 2 | 2002-08-13 |
Method for producing amines
Grant 6,350,911 - Sander , et al. February 26, 2 | 2002-02-26 |
Preparation of amines
Grant 6,140,539 - Sander , et al. October 31, 2 | 2000-10-31 |
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