Stable dispersible silicone compositions

US6136917A · kind A · utility

Assignee

• Dow Corning Corporation · US

Inventors

• Steven P. Christiano · Spartanburg, US
• Gregory G. Bausch · Midland, US
• Lauren Tonge · Sanford, US
• Sharon Kay McCoy · Gladwin, US
• Elizabeth F. Mallen · Brussels, BE
• Roger Jeffery Jones · Jauche, BE
• Athanasios Surutzidis · Hamilton, US
• Andrew Albon Fisk · Strombeek-Bever, BE

Key dates

• Filing date: Jul 22, 1993
• Grant date: Oct 24, 2000
• Expiry date: Jul 22, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/82
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The compositions of the present invention consist essentially of (I) a reaction product, (II) a nonaqueous liquid continuous phase, and (III) a moderately hydrophobic particulate stabilizing aid. Component (I) is prepared by heating a mixture of (i) a polyorganosiloxane fluid, (ii) a silicon compound, (iii) a finely divided filler and (iv) a catalytic amount of a compound for promoting the reaction of components (i) to (iii) at a temperature of 50.degree. C. to 300.degree. C. The compositions of the present invention can additionally contain (IV) at least one nonionic silicone surfactant, and (V) a nonreinforcing inorganic filler.