Preactivated organophilic clay gellant lubricating grease thickened with preactivated organophilic clay gellant and process for preparing preactivated organophilic clay gellants

US4664820A · kind A · utility

Assignee

• NL Industries, Inc. · US

Inventors

• Edward D. Magauran · Willingboro, US
• Charles A. Cody · Lawrence, US
• William W. Reichert · Freehold, US
• Mauriello D. Kieke · Englishtown, US
• Steven J. Kemnetz · Trenton, US
• Araxi Chiavoni · Hillsborough Township, US

Key dates

• Filing date: Oct 28, 1985
• Grant date: May 12, 1987
• Expiry date: Oct 28, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S507/901
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A preactivated organophilic clay gellant that may be used to thicken organic compositions, especially, lubricating greases without the presence of a polar activator. The preactivated organophilic clay gellant may be prepared using certain process parameters namely shearing of the smectite-type clay prior to reaction with the organic cation, dilute reaction conditions and gentle drying of the organophilic clay or the preactivated organophilic clay gellant.