Hydrolysis resistant organomodified trisiloxane surfactants

US7935842B2 · kind B2 · utility

Assignee

• Momentive Performance Materials GmbH · US

Inventors

• George A. Policello · Ossining, US
• Mark D. Leatherman · Elmsford, US
• Wenqing Peng · Shanghai, CN
• Suresh K. Rajaraman · Newburgh, US
• Zijun Xia · Shanghai, CN

Key dates

• Filing date: Feb 9, 2006
• Grant date: May 3, 2011
• Expiry date: Sep 2, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/0838
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Three types of trisiloxane surfactants having the basic formula:MDM′are described wherein the substituents on the differing M and M′ groups in conjunction with a pendant polyalkylene oxide substituents on the D group to render the surfactant resistant to hydrolysis under either basic or acidic conditions.