Continuous process for producing crosslinkable organopolysiloxane compositions

US7888421B2 · kind B2 · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Peter Schöley · Meißen, DE
• Uwe Scheim · Coswig, DE
• Steffen Lau · Pößneck, DE

Key dates

• Filing date: Jul 25, 2007
• Grant date: Feb 15, 2011
• Expiry date: Dec 10, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K3/36
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

RTV-1 compositions are continuously produced from essentially linear organosilicon compounds having at least two condensable groups bound to silicon, filler and, optionally, further constituents, by mixing in one step in a single pass through the mixing zone of a rotor-stator mixer, wherein the pressure at the outlet of the mixing apparatus is at least 100 hPa greater than that at the inlet of the mixing apparatus.