Dry spreadable water dispersible granule compositions

US5759943A · kind A · utility

Assignee

• Rhone-Poulenc, Inc. · US

Inventors

• Mark Einziger · Manalapan, US
• Edward Fu · Montvale, US
• Alan J. Stern · Magnolia, US
• Stanley J. Kostka · Cherry Hill, US
• Patrick Michael Holroyd · Cherry Hill, US

Key dates

• Filing date: May 22, 1996
• Grant date: Jun 2, 1998
• Expiry date: May 22, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K3/32
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

This invention relates to activated charcoal granule compositions which can be dry spread and "watered-in" to a site to reduce undesirable biological activity of deleterious organic compounds. When wet, these granules disperse very rapidly with a large dispersion area to original granule diameter ratio. The granules have high loadings of charcoal, i.e., from about 60 to about 95 weight percent and contain from about 5 to about 40 weight percent of a surfactant system which exhibits excellent dispersing; rewetting; and binding properties.