Patent Number: 6,251,983

Title: Inversion carbon blacks and method for their manufacture

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.

Inventors: Vogler; Conny (Bornheim-Sechtem, DE), Vogel; Karl (Alzenau, DE), Niedermeier; Werner (Bruhl, DE), Freund; Burkhard (Erftstadt, DE), Messer; Paul (Bruhl, DE)

Assignee: Degussa - Huls Aktiengesellschaft

International Classification: B60C 1/00 (20060101); C08K 3/00 (20060101); C08K 3/04 (20060101); C09C 1/50 (20060101); C09C 1/44 (20060101); C08K 003/03 ()

Expiration Date: 06/26/2018