Organoclay compositions

US5780376A · kind A · utility

Assignees

• Southern Clay Products, Inc. · US
• THE DOW CHEMICAL COMPANY · US

Inventors

• Antonio Gonzales · Schulenburg, US
• Kevin L. Nichols · Freeland, US
• Clois E. Powell · Seguin, US
• Bruce P. Thill · Midland, US

Key dates

• Filing date: Feb 20, 1997
• Grant date: Jul 14, 1998
• Expiry date: Feb 20, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2002/08
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Organoclay compositions which comprise the reaction product of a smectite-type clay having an ion exchange capacity of at least 50 meq. wt. per 100 g. clay (active basis), and mixture of a quaternary ammonium compound and a chain transfer agent which is a thiol, .alpha.-methylketone, .alpha.-methylalcohol or a halogen compound are useful agents for use in the processes for the preparation of thermoplastic materials.