Organoclay compositions manufactured with organic acid derived ester quaternary ammonium compounds

US5718841A · kind A · utility

Assignee

• Rheox Inc. · US

Inventors

• Wilbur Mardis · Trenton, US
• Jose Sanchez · Grand Island, US
• Henry Basson · Overijse, BE

Key dates

• Filing date: Mar 26, 1996
• Grant date: Feb 17, 1998
• Expiry date: Mar 26, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S507/91
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A novel organophilic clay comprising the reaction product of: PA1 (a) a smectite-type clay; and PA1 (b) a quaternary ammonium compound or compounds selected from the group consisting of: ##STR1## wherein R.sub.1 is an unsaturated alkyl-ester group having 8 to 30 carbon atoms as described below and R.sub.2, R.sub.3 and R.sub.4 are independently selected from the group consisting of (i) R.sub.1, (ii) long chain linear or branched alkyl (including methyl), aliphatic or aromatic groups having 1 to 30 carbon atoms (such groups can also include hydroxylated groups); (iii) aralkyl groups, which are benzyl and substituted benzyl moieties, including such groups having fused ring moieties having linear chains or branches of 1 to 30 carbon atoms; (iv) aryl groups such as phenyl and substituted phenyl including fused ring aromatic substituents; (v) beta, gamma unsaturated groups having six or less carbon atoms or hydroxyalkyl groups having 2 to 6 carbon atoms; and (vi) hydrogen and M.sup.- is an anion selected from the group consisting of chloride, methylsulfate, acetate, iodide and bromide. The organophilic clay is used in a non-aqueous fluid system such as paints, inks, and coatings to provi…