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:
Apr. 11, 2000
Filed:
Jul. 24, 1998
Applicant:
Inventors:
Heinz Auer, Neulussheim, DE;
Siegfried Kruger, Speyer, DE;
Stephan Scholl, Bad Durkheim, DE;
Theodor Weber, Ludwigshafen, DE;
Johann-Peter Melder, Neuhofen, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; C07C / ;
U.S. Cl.
CPC ...
203 72 ; 203 74 ; 203 75 ; 203 77 ; 203 78 ; 203 80 ; 203 99 ; 203D / ; 560179 ; 159-62 ;
Abstract
Neopentyl glycol hydroxypivalate (NGH) is isolated from a mixture containing NGH, lower- and higher-boiling products and inorganic salts and purified in a two-stage process, wherein