Inversion carbon blacks and method for their manufacture

US6251983A · kind A · utility

Assignee

• Degussa-Huels AG · DE

Inventors

• Conny Vogler · Bornheim, DE
• Karl Vogel · Bad Vilbel, DE
• Werner Niedermeier · Brauel, DE
• Burkhard Freund · Lechenich, DE
• Paul Messer · Zeven, DE

Key dates

• Filing date: Jun 10, 1999
• Grant date: Jun 26, 2001
• Expiry date: Jun 10, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/86
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Inversion carbon blacks and a method for their manufacture are disclosed. The inversion carbon blacks have a lower rolling resistance with identical or improved wet skid behavior. The particle size distribution contains a smaller proportion of particles with large diameters. This leads to an improved abrasion behavior of rubber compounds which were prepared using these carbon blacks. The inversion carbon blacks can be manufactured in conventional carbon black reactors by controlling the combustion in the combustion chamber in such a manner that carbon black nuclei form, which are immediately brought into contact with the carbon black raw material. The carbon blacks present a lower proportion of larger particles if the additions of combustion air and carbon black raw material are increased in an appropriate manner.