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Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification Grant 8,372,993 - Lang , et al. February 12, 2 | 2013-02-12 |
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Method for the rectifying separation of fluids containing (meth)acryl monomers Grant 7,520,964 - Hammon , et al. April 21, 2 | 2009-04-21 |
Thermal separating process for removing at least one stream containing enriched (meth) acrylic monomers Grant 7,393,436 - Eck , et al. July 1, 2 | 2008-07-01 |
Rectificative separation of fluids comprising (meth) acrylic monomers Grant 7,351,310 - Thiel , et al. April 1, 2 | 2008-04-01 |
Column comprising dual flow plates Grant 7,306,204 - Thiel , et al. December 11, 2 | 2007-12-11 |
Cleaning of apparatus in which meth(acrylic) acid-containing organic solvents have been treated and/or generated Grant 7,287,534 - Diehl , et al. October 30, 2 | 2007-10-30 |
Thermal separating process between at least one gaseous and at least one liquid stream, of which at least one comprises (meth)acrylic monomers Grant 7,279,075 - Thiel , et al. October 9, 2 | 2007-10-09 |
Hydraulically sealed crossflow mass transfer tray Grant 7,118,098 - Thiel , et al. October 10, 2 | 2006-10-10 |
Method for the continuous extraction of (meth)acrylic acid Grant 7,109,374 - Machhammer , et al. September 19, 2 | 2006-09-19 |
Method for producing an aqueous hydroxylamine solution devoid of salt Grant 7,029,557 - Wostbrock , et al. April 18, 2 | 2006-04-18 |
Method for the rectifying separation of fluids containing (meth)acryl monomers App 20050211542 - Hammon, Ulrich ;   et al. | 2005-09-29 |
Method for the production of a salt-free aqueous hydroxylamine solution Grant 6,942,762 - Wostbrock , et al. September 13, 2 | 2005-09-13 |
Preparation of acrylic acid Grant 6,939,991 - Thiel , et al. September 6, 2 | 2005-09-06 |
Method for the continuous production of methyl formate Grant 6,921,833 - Auer , et al. July 26, 2 | 2005-07-26 |
Thermal separating process for removing at least one stream containing enriched (meth) acrylic monomers App 20050090628 - Eck, Bernd ;   et al. | 2005-04-28 |
Thermal separating process for removing at least one stream containing enriched (meth)acrylic monomers App 20050006219 - Eck, Bernd ;   et al. | 2005-01-13 |
Column having dual-flow trays App 20040249198 - Thiel, Joachim ;   et al. | 2004-12-09 |
Method for the production of a salt-free aqueous hydroxylamine solution App 20040156774 - Wostbrock, Karl-Heinz ;   et al. | 2004-08-12 |
Method for producing an aqueous hydroxylamine solution devoid of salt App 20040149564 - Wostbrock, Karl-Heinz ;   et al. | 2004-08-05 |
Thermal separating process between at least one gaseous and at least one liquid stream, of which at least one comprises (meth) acrylic monomers App 20040138501 - Thiel, Joachim ;   et al. | 2004-07-15 |
Rectificative separation of fluids comprising (meth) acrylic monomers App 20040129021 - Thiel, Joachim ;   et al. | 2004-07-08 |
Method for the continuous extraction of ( meth) acrylic acid App 20040116736 - Machhammer, Otto ;   et al. | 2004-06-17 |
Hydraulically sealed crossflow mass transfer tray App 20040097756 - Thiel, Joachim ;   et al. | 2004-05-20 |
Preparation of acrylic acid App 20040073063 - Thiel, Joachim ;   et al. | 2004-04-15 |
Cleaning of apparatus in which meth(acrylic) acid-containing organic solvents have been treated and/or generated App 20040026228 - Diehl, Volker ;   et al. | 2004-02-12 |
Fractional condensation of a product gas mixture containing acrylic acid Grant 6,679,939 - Thiel , et al. January 20, 2 | 2004-01-20 |
Method for the fractional condensation of a hot gas mixture containing acrylic acid or methacrylic acid and having a high proportion of non-condensable constituents Grant 6,646,161 - Eck , et al. November 11, 2 | 2003-11-11 |
Method for purifying acrylic acid or methacrylic acid by crystallization and distillation Grant 6,541,665 - Bastiaensen , et al. April 1, 2 | 2003-04-01 |
Lamp with a mechanical base Grant 6,469,428 - Thiel , et al. October 22, 2 | 2002-10-22 |
Method for producing acrylic acid and methacrylic acid Grant 6,448,439 - Eck , et al. September 10, 2 | 2002-09-10 |