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:
Jan. 30, 2018
Filed:
Apr. 03, 2017
Evonik Carbon Black Gmbh, Hanau, DE;
Arkadi Maisels, Hanau, DE;
Yves Gorat Stommel, Shanghai, CN;
Frank Stenger, Alzenau, DE;
Jutta Zimmermann, Alzenau, DE;
Manfred Dannehl, Kahl, DE;
Johann Mathias, Kahl, DE;
Evonik Carbon Black GmbH, Hanau, DE;
Abstract
The invention relates to carbon aerogels with particle sizes less than 1 μm. The carbon aerogels are prepared by (A)reacting a mono- and/or polyhydroxybenzene, an aldehyde and a catalyst in a reactor at a reaction temperature T in the range from 75-200° C. at a pressure of 80-2400 kPa, (B) then spraying the reaction mixture from process step (A) into an acid, (C) drying the resulting product from process step (B) and (D) carbonizing it. The carbon aerogels according to the invention can be used as filler, reinforcing filler, UV stabilizer, electrode material, sound absorbents, thermal insulating material, catalyst, catalyst support, conductivity additive, absorbent for gas and/or liquid preparation or pigment.