Carbon black, method for the production thereof, and use thereof

US9493659B2 · kind B2 · utility

Assignee

• Evonik Carbon Black GmbH · DE

Inventors

• Michael Stanyschöfsky · Bad Mergentheim, DE
• Gernot Meinerzhagen · Leverkusen, DE
• Paul Messer · Zeven, DE
• Joachim Fröhlich · Dresden, DE

Key dates

• Filing date: Oct 9, 2009
• Grant date: Nov 15, 2016
• Expiry date: Sep 14, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/19
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to carbon black having a C-14 content greater than 0.05 Bq/g and a ratio ΔD50/Dmode of the aggregate size distribution of less than 0.7. The carbon black is produced by thermal oxidative pyrolysis or thermal cleavage of the carbon black raw material in that the carbon black raw material contains renewable carbon black raw materials and an oxygen deficiency is present in the pyrolysis/cleavage reaction. The carbon blacks can be used in rubber and rubber mixtures, plastic, printing inks, inks, inkjet inks, toners, lacquers, paints, paper, adhesives, batteries, pastes, bitumens, concrete, and other building materials and as reducing agents in metallurgy.