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:
Feb. 07, 2017
Filed:
Apr. 10, 2012
Christian Bittner, Bensheim, DE;
Bernhard Ulrich Von Vacano, Mannheim, DE;
Alexsandro Berger, Rosenheim, DE;
Roland Boehn, Maxdorf, DE;
Guenter Oetter, Frankenthal, DE;
Joerg Nieberle, Wachenheim, DE;
Christian Bittner, Bensheim, DE;
Bernhard Ulrich von Vacano, Mannheim, DE;
Alexsandro Berger, Rosenheim, DE;
Roland Boehn, Maxdorf, DE;
Guenter Oetter, Frankenthal, DE;
Joerg Nieberle, Wachenheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Compounds of the formulae: RO—X—NH(Ia); RO—X—NHY(Ib); RO—X—NH—Z—NH(IIa); and RO—X—NH—Z—NHY(IIb), in which X is an aliphatic alkylene group containing 2 to 6 carbon atoms; Z is an aliphatic alkylene group containing 2 to 6 carbon atoms; Yis an anion; and R is an aliphatic iso CH-group with average branching degree ranging from 1.5 to 3.5. The compounds are particularly suitable as flotation collectors for enriching an iron mineral from a silicate-containing iron ore.