Gel-forming organophilic layer silicate, process for its preparation and use

US4724098A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Hans-Jurgen Kalz · Liederbach, DE
• Thomas Blumenthal · Frankfurt am Main, DE
• Hans-Walter Bucking · Kelkheim, DE
• Manfred Hofinger · Altötting, DE

Key dates

• Filing date: Jun 5, 1986
• Grant date: Feb 9, 1988
• Expiry date: Jun 5, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D5/04
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Gel-forming organophilic layer silicate whose exchangeable cations have been wholly or partly replaced by a quaternary ammonium compound of the formula ##STR1## where R.sub.1 and R.sub.2 can be identical or different and denote C.sub.6 C.sub.30 -alkyl or C.sub.6 -C.sub.30 -alkenyl, R.sub.3 denotes C.sub.1 -C.sub.6 -alkyl, R.sub.4 denotes C.sub.1 -C.sub.6 -alkyl, A denotes the group --C.sub.2 H.sub.4 -- or --C.sub.3 H.sub.6 -- and n denotes 1 or 2. These organically modified layer silicates are used as thixotroping agents, for example for surface coatings and antirust primers.