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:
Jun. 07, 2011
Filed:
Dec. 19, 2005
Applicant:
Enrico Traverso, Monza, IT;
Inventor:
Enrico Traverso, Monza, IT;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
C09B 29/33 (2006.01); C09B 67/22 (2006.01); C10L 1/226 (2006.01); C10M 171/00 (2006.01); B01F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Products having the general formula A, particularly useful as non-coloring markers in a process for tagging mineral oils, petroleum derivatives in general and solvents. A method is also described for synthesizing the products by resorting to a classical diazocoupling reaction between a derivative of an aromatic amine and a coupling agent, preferably a functionalized ester. The invention also relates to the use of these tagging and dyeing molecules and mixtures which comprise them. In particular, the mixtures comprise the markers according to the invention and the markers and/or dyes classically used in the petroleum sector.