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:
Aug. 23, 2011
Filed:
Jun. 10, 2010
Ulrich Riebel, Briesen, DE;
Matthias Katzer, Schluechtern, DE;
Kai Krauss, Huerth, DE;
Alfons Karl, Gruendau, DE;
Juergen Behnisch, Madison, NJ (US);
Ulrich Riebel, Briesen, DE;
Matthias Katzer, Schluechtern, DE;
Kai Krauss, Huerth, DE;
Alfons Karl, Gruendau, DE;
Juergen Behnisch, Madison, NJ (US);
Evonik Carbon Black GmbH, Hanau, DE;
Abstract
The invention relates to a method for producing carbon black or other flame aerosols, comprising the following steps: the heat is removed from the flame by dissipation and/or radiation; a thin gas boundary layer is formed; the flow formed by the flame and the gas boundary layer is accelerated or expanded; the obtained aerosol is withdrawn; and the cooling surface is cleaned. The invention further relates to a device for carrying out such a method and a black carbon having a maximum pH value of 6.0, a maximum ignition residue of 0.1 percent, and a maximum 5 μm screening refuse of 200 ppm. The inventive black carbon can be used in rubber, plastic, printing inks, inks, inkjet inks, toners, lacquers, dyes, paper, bitumen, concrete, and other construction materials.