Patent | Date |
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Process and apparatus for preparing alkyl esters of methacrylic acid Grant 9,637,574 - Gropp , et al. May 2, 2 | 2017-05-02 |
Method for hydrolysing acetone cyanohydrin Grant 9,458,083 - Selbach , et al. October 4, 2 | 2016-10-04 |
Metering ring Grant 9,169,194 - Sartorelli , et al. October 27, 2 | 2015-10-27 |
Method For Hydrolysing Acetone Cyanohydrin App 20150045577 - Selbach; Arndt ;   et al. | 2015-02-12 |
Transesterification methods Grant 8,889,899 - Ackermann , et al. November 18, 2 | 2014-11-18 |
Reactor for preparing hydrogen cyanide by the Andrussow process Grant 8,802,020 - Schaefer , et al. August 12, 2 | 2014-08-12 |
Method for producing methacrylic alkyl esters by way of azeotropic distillation Grant 8,586,779 - Gropp , et al. November 19, 2 | 2013-11-19 |
Method for producing methacrylic acid Grant 8,575,388 - Gropp , et al. November 5, 2 | 2013-11-05 |
Metering Ring App 20130211140 - SARTORELLI; Lorenza ;   et al. | 2013-08-15 |
Method for purifying methacrylic acid Grant 8,389,762 - Gropp , et al. March 5, 2 | 2013-03-05 |
Method for producing acetone cyanohydrin and the subsequent products thereof by specific cooling Grant 8,334,399 - Gropp , et al. December 18, 2 | 2012-12-18 |
Method for the adsorptive purification of alkyl methacrylates Grant 8,324,424 - Gropp , et al. December 4, 2 | 2012-12-04 |
Production by distillation of acetone cyanhydrin and method for producing methacrylic ester and subsequent products Grant 8,143,434 - Gropp , et al. March 27, 2 | 2012-03-27 |
Process for preparing cyanohydrins and their use in the preparation of alkyl esters of methacrylic acid Grant 8,129,559 - Gropp , et al. March 6, 2 | 2012-03-06 |
Metering Ring App 20120010430 - Sartorelli; Lorenza ;   et al. | 2012-01-12 |
Method For Producing Methacrylic Acid App 20120004460 - Gropp; Udo ;   et al. | 2012-01-05 |
Methods for producing alkyl(meth)acrylates Grant 7,999,130 - Ackermann , et al. August 16, 2 | 2011-08-16 |
Reactor For Preparing Hydrogen Cyanide By The Andrussow Process App 20110171101 - Schaefer; Thomas ;   et al. | 2011-07-14 |
Method For Producing Methacrylic Acid App 20100331572 - Gropp; Udo ;   et al. | 2010-12-30 |
Method For Purifying Methacrylic Acid App 20100314239 - Gropp; Udo ;   et al. | 2010-12-16 |
Method For Amidating Of Nitrile In The Presence Of Sulfuric Acid App 20100249449 - Sartorelli; Lorenza ;   et al. | 2010-09-30 |
Process For Preparing Cyanohydrins And Their Use In The Preparation Of Alkyl Esters Of Methacrylic Acid App 20100076214 - Gropp; Udo ;   et al. | 2010-03-25 |
Integrated Process And Apparatus For Preparing Esters Of Methacrylic Acid From Acetone And Hydrocyanic Acid App 20100069662 - Gropp; Udo ;   et al. | 2010-03-18 |
Production By Distillation Of Acetone Cyanhydrin And Method For Producing Methacrylic Ester And Subsequent Products App 20100069594 - Gropp; Udo ;   et al. | 2010-03-18 |
Process And Apparatus For Preparing Alkyl Esters Of Methacrylic Acid App 20100056742 - Gropp; Udo ;   et al. | 2010-03-04 |
Method For Producing Methacrylic Alkyl Esters By Way Of Azeotropic Distillation App 20100029881 - Gropp; Udo ;   et al. | 2010-02-04 |
Method For The Adsorptive Purification Of Alkyl Methacrylates App 20100004417 - Gropp; Udo ;   et al. | 2010-01-07 |
Method For Producing Acetone Cyanhydrin And The Subsequent Products Thereof By Specific Cooling App 20090299023 - Gropp; Udo ;   et al. | 2009-12-03 |
Process For Preparing Alpha-hydroxycarboxylic Acids App 20090209781 - Ackermann; Jochen ;   et al. | 2009-08-20 |
Method for producing alpha-hydroxycarboxylic acids and the esters thereof Grant 7,423,173 - Krill , et al. September 9, 2 | 2008-09-09 |
Methods For Producing Alkyl(Meth)Acrylates App 20080194875 - Ackermann; Jochen ;   et al. | 2008-08-14 |
Transesterification Methods App 20080194862 - Ackermann; Jochen ;   et al. | 2008-08-14 |
Method for producing alpha-hydroxycarboxylic acids and the esters thereof App 20070173664 - Krill; Steffen ;   et al. | 2007-07-26 |
Method for the continuous production of alkyl (meth)acrylates Grant 6,977,310 - Ackermann , et al. December 20, 2 | 2005-12-20 |
Method for the continuous production of alkyl (meth)acrylates App 20050119500 - Ackermann, Jochen ;   et al. | 2005-06-02 |