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:
Sep. 04, 2001
Filed:
Aug. 25, 1999
Applicant:
Inventors:
Thomas Haas, Frankfurt, DE;
Liane Deusser, Erzhausen, DE;
Torsten Hahm, Hanau-Klein-Auheim, DE;
Willi Hofen, Rodenbach, DE;
Rudolf Vanheertum, Kahl, DE;
Assignee:
E.I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 4/564 ;
U.S. Cl.
CPC ...
C07C 4/564 ;
Abstract
3-Hydroxypropanal is prepared by reacting acrolein with water under pressure and in the presence of an ion exchange resin while adding a carboxylic acid to the reaction mixture.