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:
Mar. 12, 2013
Filed:
Jun. 12, 2009
Kurt Schalapski, Oberhausen, DE;
Tonia Kretz, Darmstadt, DE;
Thorsten Kreickmann, Oberhausen, DE;
Peter Heymanns, Essen, DE;
Rainer Lukas, Essen, DE;
Rolf-peter Schulz, Kriftel, DE;
Kurt Schalapski, Oberhausen, DE;
Tonia Kretz, Darmstadt, DE;
Thorsten Kreickmann, Oberhausen, DE;
Peter Heymanns, Essen, DE;
Rainer Lukas, Essen, DE;
Rolf-Peter Schulz, Kriftel, DE;
Oxea GmbH, Oberhuasen, DE;
Abstract
The present invention relates to a method of producing neopentyl glycol by addition of isobutyraldehyde and formaldehyde in the presence of a tertiary alkylamine as catalyst to give the hydroxypivalinaldehyde with subsequent liquid phase hydrogenation in the presence of a nickel catalyst at a temperature of 80 to 180° C. and at a pressure of 6 to 18 MPa in the presence of an aliphatic alcohol and in the presence of water.