The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 2016
Filed:
Mar. 06, 2013
Arndt Selbach, Erftstadt, DE;
Lorenza Sartorelli, Ober-Ramstadt, DE;
Andreas Perl, Bobenheim-Roxheim, DE;
Joachim Deinken, Eschborn, DE;
Stefanie Sohnemann, Overath, DE;
Norbert Mnich, Erlensee, DE;
Matthias Groemping, Darmstadt, DE;
Udo Gropp, Bad Endorf, DE;
Thomas Mertz, Bensheim, DE;
Arndt Selbach, Erftstadt, DE;
Lorenza Sartorelli, Ober-Ramstadt, DE;
Andreas Perl, Bobenheim-Roxheim, DE;
Joachim Deinken, Eschborn, DE;
Stefanie Sohnemann, Overath, DE;
Norbert Mnich, Erlensee, DE;
Matthias Groemping, Darmstadt, DE;
Udo Gropp, Bad Endorf, DE;
Thomas Mertz, Bensheim, DE;
EVONIK ROEHM GmbH, Darmstadt, DE;
Abstract
The present invention relates to a process for hydrolysis of acetone cyanohydrin (ACH) by means of sulphuric acid within the ACH sulpho process for preparation of methacrylic acid (MAA) or methyl methacrylate (MMA).