Silane/filler preparations, process for their production and their use

US4297145A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Siegfried Wolff · Bornheim, DE
• Lothar Rothbuhr · Hürth, DE
• Heinz Grewatta · Cologne, DE

Key dates

• Filing date: Aug 14, 1980
• Grant date: Oct 27, 1981
• Expiry date: Aug 14, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B20/1051
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a silane/filler preparation, consisting essentially of from 5 to 70% by weight of at least one silane corresponding to the following formula EQU X.sub.p --C.sub.m H.sub.2m+1-p SiR.sub.n.sup.1 (OR).sub.3-n, I in which PA1 X=a halogen atom, preferably chlorine or bromine, PA1 p=1 or 2, PA1 m=1 to 5, PA1 R.sup.1 =a C.sub.1 -C.sub.5 alkyl group, C.sub.5 -C.sub.8 -cycloalkyl group or a phenyl group, PA1 R=a C.sub.1 -C.sub.5 -alkyl group, a C.sub.5 -C.sub.8 -cycloalkyl group, a phenyl group, a benzyl group or a C.sub.1 -C.sub.5 -alkoxy-C.sub.1 -C.sub.5 -alkyl group, and PA1 n=0, 1 or 2, and--respectively balanced to 100%--from 95 to 30% by weight of at lesat one inorganic filler, preferably carbon black and silicate fillers as, e.g., silica. There is also disclosed a process for the production of the silane/filler preparation and its use in optionally cross-linkable polymeric moulding compositions or vulcanizable or cross-linkable rubber moulding compositions such as sulphur-vulcanizable moulding compositions based on natural rubber and/or synthetic rubber.