Patent · US Expired

Carbon blacks and process for producing them

US6099818A · kind A · utility

33Cited by

2References

19Claims

0Family size

Assignee

Degussa-Huels AG · DE

Inventors

Burkhard Freund · Lechenich, DE
Gerhard Kuhner · Hanau, DE
Ulrich Sattler · Lechenich, DE
Karl Vogel · Bad Vilbel, DE

Key dates

Filing date	Sep 25, 1998
Grant date	Aug 8, 2000
Priority date	—
Expiry date	Sep 25, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T152/10495
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

Disclosed are improved carbon blacks and a process for producing them. The improved carbon blacks are distinguished from conventional blacks having the same CTAB surface, after incorporation into SSBR/BR rubber compositions, by a lower rolling resistance with equal or better wet skid behavior. They can be produced in conventional carbon black reactors by conducting the burning in the combustion chamber so that carbon nuclei form and are immediately brought into contact with the carbon black raw material.

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