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:
Feb. 26, 2019
Filed:
Mar. 27, 2018
Applicant:
Evonik Degussa Gmbh, Essen, DE;
Inventor:
Marianne Omeis, Dorsten, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 255/03 (2006.01); C07C 255/15 (2006.01); C07C 253/34 (2006.01); C07C 409/38 (2006.01); C07C 29/14 (2006.01); C07C 253/30 (2006.01); C07C 253/10 (2006.01); C07F 9/30 (2006.01); C07F 9/32 (2006.01);
U.S. Cl.
CPC ...
C07C 255/15 (2013.01); C07C 29/14 (2013.01); C07C 253/10 (2013.01); C07C 253/30 (2013.01); C07C 253/34 (2013.01); C07C 409/38 (2013.01); C07F 9/301 (2013.01); C07F 9/3211 (2013.01);
Abstract
The present invention relates to an improved method for preparing acrolein cyanohydrins from hydrocyanic acid and the corresponding acroleins. The method is characterized in that the acrolein cyanohydrins obtained have a very low hydrocyanic acid content or are free of hydrocyanic acid and are therefore particularly well suited as intermediates for the synthesis of glufosinates.