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. 15, 2010
Filed:
Jul. 08, 2005
Joerg Halpap, Speyer, DE;
Richard Van Gelder, Speyer, DE;
Bernd Sachweh, Meckenheim, DE;
Siegfried Welker, Hettenleidelheim, DE;
Norbert Wagner, Mutterstadt, DE;
Andreas Marquard, Karlsruhe, DE;
Gerhard Kasper, Karlsruhe, DE;
Joerg Halpap, Speyer, DE;
Richard Van Gelder, Speyer, DE;
Bernd Sachweh, Meckenheim, DE;
Siegfried Welker, Hettenleidelheim, DE;
Norbert Wagner, Mutterstadt, DE;
Andreas Marquard, Karlsruhe, DE;
Gerhard Kasper, Karlsruhe, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The invention relates to processes for producing nanoparticles, especially pigment particles, comprising the following steps: i) bringing a base substance () into the gas phase, ii) generating particles by cooling or reacting the gaseous base substance (), and iii) applying electrical charge to the particles during particle generation in step ii) in a nanoparticle generation apparatus. The invention further relates to apparatus for producing nanoparticles, having a feed line () for transporting the gas stream () into the apparatus, a particle generation and charging area for substantially simultaneous generation and charging of nanoparticles, and a takeoff line () for transporting the charged nanoparticles from the particle generation and charging area.