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:
Jan. 18, 2005
Filed:
Mar. 05, 2002
Georg Heinrich Grosch, Bad Duerkheim, DE;
Werner Bochnitschek, Ludwigshafen, DE;
Peter Neumann, Mannheim, DE;
Arend Jouke Kingma, Ludwigshafen, DE;
Georg Heinrich Grosch, Bad Duerkheim, DE;
Werner Bochnitschek, Ludwigshafen, DE;
Peter Neumann, Mannheim, DE;
Arend Jouke Kingma, Ludwigshafen, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
Glyceric acid compounds of the formula (I)RRC(OH)—CR(OH)—COOX  (I)where R, Rand Rare independently hydrogen, C-alkyl, C-aryl, C-alkaryl or C-aralkyl andX is hydrogen, an alkali metal, an alkaline earth metal/2 or NH,are prepared by saponification of glycidic acid compounds of the formula (II)where Y is NHor ORin which Ris C-alkyl or C-aralkyl,with ring-opening addition of water onto the epoxide ring. Preferably, Y is NHand the glycidamide of the formula (II) which is used is prepared by reacting acrylonitriles of the formula (III)RRC═CRCN  (III)with hydrogen peroxide.