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. 23, 1976
Filed:
Jun. 28, 1974
Applicant:
Inventors:
Maximilian Kunert, Neu-Wulmstorf, DT;
Hans-Georg Wegner, Tangendorf, DT;
Assignee:
Deutsche Texaco Aktiengesellschaft, Hamburg, DT;
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208 25 ; 260 / ;
Abstract
Mineral oils containing small amounts (less than 2 weight percent) of normal paraffins may be urea dewaxed to produce refrigerator oils having Freon cloud or flock points of at least minus 55.degree.C. by utilizing large excesses of the amount of crystalline urea theoretically required for complete conversion of the n-paraffins into solid adduct and conducting the adduct formation under conditions of vigorous agitation.