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:
Oct. 22, 2019
Filed:
Feb. 24, 2016
Basf SE, Ludwigshafen, DE;
Maximilian Hemgesberg, Kaiserslautern, DE;
Denis Schwall, Ludwigshafen, DE;
Thorsten Martin Staudt, San Francisco, CA (US);
Isabel van Driessche, Waasmunster, BE;
Katrien De Keukeleere, Zaffelare, BE;
Jonathan De Roo, Ghent, BE;
Till Gruendling, Mannheim, DE;
Matthias Maier, Sandhausen, DE;
Michael Baecker, Cologne, DE;
Jan Bennewitz, Sankt Augustin, DE;
Ron Feenstra, Bonn, DE;
Hannes Rijckaert, Zomergem, BE;
Hens Zeger, Ghent, BE;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention is in the field of nanoparticles, their preparation and their use as pinning centers in superconductors. In particular the present invention relates to nanoparticles comprising an oxide of Sr, Ba, Y, La, Ti, Zr, Hf, Nb, or Ta, wherein the nanoparticles have a weight average diameter of 1 to 30 nm and wherein an organic compound of general formula (I), (II) or (III) or an organic compound containing at least two carboxylic acid groups on the surface of the nanoparticles (I) (II) (III) wherein a is 0 to 5, b and c are independent of each other 1 to 14, n is 1 to 5, f is 0 to 5, p and q are independent of each other 1 to 14, and e and f are independent of each other 0 to 12.