The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 09, 1988
Filed:
Jun. 05, 1986
Hans-Jurgen Kalz, Liederbach, DE;
Thomas Blumenthal, Frankfurt am Main, DE;
Hans-Walter Bucking, Kelkheim, DE;
Manfred Hofinger, Burgkirchen, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
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.