Carbon blacks modified with organosilicon compounds, method of their production and their use in rubber mixtures

US5159009A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Siegfried Wolff · Bornheim, DE
• Udo Gorl · Meckenheim, DE

Key dates

• Filing date: Jun 17, 1991
• Grant date: Oct 27, 1992
• Expiry date: Jun 17, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/12
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Carbon black is reacted with at least one organosilicon compound of the General Formula EQU [R.sup.1.sub.n (RO).sub.3-n Si-(Alk).sub.m -(Ar).sub.p ]q [B](I) EQU R.sup.1.sub.n (RO).sub.3-n Si-(Alkyl) (II) or EQU R.sup.1.sub.n (RO).sub.3-n Si-(Alkenyl) (III), and any excess of said organosilicon compound is extracted with a solvent. The products are useful as active fillers in rubber mixtures, carbon black suspensions and plastic mixtures which can be cross-linked with sulfur or peroxide.