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. 31, 2024
Filed:
Jul. 06, 2020
Friedrich-alexander-universität Erlangen-nürnberg, Erlangen, DE;
Nicolas Vogel, Erlangen, DE;
Herbert Canziani, Erlangen, DE;
Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, DE;
Abstract
The present invention relates to a powder for the preparation of three-dimensional objects comprising, or consisting of, supraparticles () comprising at least a first population of first primary particles, wherein the first primary particles are thermoplastic polymeric particles, wherein the first primary particles have a volume-averaged median particle diameter of from 10 to 2000 nm; wherein the primary particles are agglomerated and/or partially sintered together to form the supraparticles, and/or wherein the supraparticles have a volume-averaged median particle diameter of from 2.5 to 100 pm. The invention also relates to a method for preparing in a powder for the preparation of three-dimensional objects comprising a1) providing an at least first population of first primary particles in a first dispersion medium, thereby forming a first dispersion (); and/or a2) providing an at least second population of second primary particles in a second dispersion medium, thereby forming a second dispersion (); and/or a3) mixing the first dispersion and the second dispersion, thereby forming a mixture () of the first and second dispersion; and b) atomizing () the first, second or mixture of the first and second dispersion thereby forming droplets of the first, second or mixture of the first and second dispersion; and c) removing all dispersion media, preferably evaporating all dispersion media by spray drying (), thereby obtaining supraparticles ().