| Patent | Date |
|---|
Method For Producing Phosgene
App 20220212936 - MATTKE; Torsten ; et al. | 2022-07-07 |
Process for preparing an aromatic polyamine mixture
Grant 11,028,042 - Ladnak , et al. June 8, 2 | 2021-06-08 |
Process for hydrogenating a mixture in the presence of a colorless amine
Grant 10,927,066 - Weickgenannt , et al. February 23, 2 | 2021-02-23 |
Process for preparing isocyanates in dialkyl carbonates as solvent
Grant 10,435,354 - Heilig , et al. O | 2019-10-08 |
Process For Hydrogenating A Mixture In The Presence Of A Colorless Amine
App 20190210955 - WEICKGENANNT; Andreas ; et al. | 2019-07-11 |
Separation of a phosgene- and hydrogen chloride-comprising stream
Grant 10,252,912 - Schelling , et al. | 2019-04-09 |
Process For Preparing Isocyanates In Dialkyl Carbonates As Solvent
App 20180346414 - HEILIG; Manfred ; et al. | 2018-12-06 |
Process for preparing isocyanates in dialkyl carbonates as solvent
Grant 10,093,615 - Heilig , et al. October 9, 2 | 2018-10-09 |
Separation Of A Phosgene- And Hydrogen Chloride-comprising Stream
App 20180044179 - SCHELLING; Heiner ; et al. | 2018-02-15 |
Process For Preparing Isocyanates In Dialkyl Carbonates As Solvent
App 20170036997 - HEILIG; Manfred ; et al. | 2017-02-09 |
Method for purifying mixtures comprising 4,4'-methylenediphenyl diisocyanate
Grant 9,505,711 - Bock , et al. November 29, 2 | 2016-11-29 |
Process For The Oxidation Of Hydrogen Chloride Over A Catalyst Having A Low Surface Roughness
App 20150360210 - Henze; Guido ; et al. | 2015-12-17 |
Method of regulating the viscosity of a mixture comprising at least two components having different viscosities
Grant 9,170,184 - Thiele , et al. October 27, 2 | 2015-10-27 |
Method for producing phosgene
Grant 8,993,803 - Olbert , et al. March 31, 2 | 2015-03-31 |
Process for preparing methylenedi(phenyl isocyanate)
Grant 8,907,124 - Bock , et al. December 9, 2 | 2014-12-09 |
Process for preparing an isocyanate
Grant 8,853,443 - Breuninger , et al. October 7, 2 | 2014-10-07 |
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 MDA via the stage of the aminal
Grant 8,710,267 - Stroefer , et al. April 29, 2 | 2014-04-29 |
Method for producing color-stable MDA and MDI
Grant 8,614,352 - Stroefer , et al. December 24, 2 | 2013-12-24 |
Method Of Regulating The Viscosity Of A Mixture Comprising At Least Two Components Having Different Viscosities
App 20130240779 - THIELE; Kai | 2013-09-19 |
Method of measuring entry of water into phosgene-conducting plants
Grant 8,519,179 - Schelling , et al. August 27, 2 | 2013-08-27 |
Method For Purifying Mixtures Comprising 4,4'-methylenediphenyl Diisocyanate
App 20120142960 - BOCK; Michael ; et al. | 2012-06-07 |
Method For Purifying Mixtures Comprising 4,4'-methylenediphenyl Diisocyanate
App 20120123153 - BOCK; Michael ; et al. | 2012-05-17 |
Process For Preparing Methylenedi(phenyl Isocyanate)
App 20120123151 - BOCK; Michael ; et al. | 2012-05-17 |
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 The Oxidation Of Hydrogen Chloride Over A Catalyst Having A Low Surface Roughness
App 20120087855 - Henze; Guido ; et al. | 2012-04-12 |
Method For Producing Color-stable Mda And Mdi
App 20120046497 - Stroefer; Eckhard ; et al. | 2012-02-23 |
Process For Preparing Mda Via The Stage Of The Aminal
App 20120035396 - Stroefer; Eckhard ; et al. | 2012-02-09 |
Method For Producing Phosgene
App 20110319662 - Olbert; Gerhard ; et al. | 2011-12-29 |
Process For Preparing An Isocyanate
App 20110263892 - Breuninger; Daniel ; et al. | 2011-10-27 |
Process For Preparing Aromatic Isocyanates
App 20110251425 - Penzel; Ulrich ; et al. | 2011-10-13 |
Initial compounds for producing polyurethanes
Grant 7,705,106 - Groer , et al. April 27, 2 | 2010-04-27 |
Method for the production of diaminodiarylmethanes
Grant 7,408,083 - Steinbrenner , et al. August 5, 2 | 2008-08-05 |
Method for the production of diaminodiarylmethanes
App 20070010692 - Steinbrenner; Ulrich ; et al. | 2007-01-11 |
Initial compounds for producing polyurethanes
App 20060205915 - Groer; Peter ; et al. | 2006-09-14 |
Mixtures containing isocyanate stabilisers of the hindered phenol type with a high molecular weight
App 20060167207 - Thiele; Kai ; et al. | 2006-07-27 |
Method for producing prepolymers containing isocyanate groups and urethane groups
App 20050020798 - Bartz, Thomas ; et al. | 2005-01-27 |
Method for producing mdi, especially 2,4'-mdi
App 20040171869 - Reif, Martin ; et al. | 2004-09-02 |
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