Patent · US Active

Carbon black, a process for preparation thereof and use thereof

US8420044B2 · kind B2 · utility

8Cited by

6References

3Claims

0Family size

Assignee

Evonik Carbon Black GmbH · DE

Inventors

Klaus Bergemann · Biberach, DE
Manfred Dannehl · Alzenau, DE
Ansgar Oelmann · Gelnhausen, DE
Britta Schwartze · Hamburg, DE
Christoph Tontrup · Alzenau, DE

Key dates

Filing date	Sep 16, 2010
Grant date	Apr 16, 2013
Priority date	—
Expiry date	Feb 13, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01P2006/80
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Carbon black with a content of polycyclic aromatic hydrocarbons measured by the 22 PAH method of less than 5 ppm and an STSA surface area of <90 m2/g. The carbon black is prepared by treating the starting carbon black with electromagnetic radiation. The carbon black can be used in rubber, plastics, printing inks, liquid inks, inkjet inks, toners, coating materials, paints, adhesives, batteries, pastes, paper, fuel cells, bitumen, concrete and other building materials.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.