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:
Dec. 15, 2020
Filed:
Jun. 27, 2017
Hüttens-albertus Chemische Werke Gesellschaft Mit Beschränkter Haftung, Düsseldorf, DE;
Sandra Lehmann, Potsdam, DE;
Klaus Riemann, Wunstorf, DE;
Nils Zimmer, Garbsen, DE;
Hermann Lieber, Langenhagen, DE;
Jürgen Hübert, Langenhagen, DE;
Abstract
The invention relates to core-shell particles for use as a filler for feeder compositions for producing feeders, comprising (a) a core which possesses one or more cavities and a wall surrounding these cavities, where the core (a) has an average diameter in the range from 0.15 to 0.45 mm, (b) a shell enclosing the core and consisting of or comprising (b1) particles comprising or consisting of a material from the group consisting of calcined kaolin or cordierite, where the particles (b1) have a d10 of at least 0.05 μm and a d90 of at most 45 μm, and also (b2) a binder which binds the particles (b1) to one another and to the core (a).