Asymmetrically substituted polyorganosiloxane derivatives

US11535751B2 · kind B2 · utility

Assignee

• Momentive Performance Materials GmbH · US

Inventors

• Gunnar Hoffmüller · Linz, DE
• Thorsten Felder · Düsseldorf, DE
• Roland Wagner · Feldkirchen-Westerham, DE
• Philip Kensbock · Cologne, DE
• Anita Witossek · Langenfeld, DE
• Silvia Effert · Leverkusen, DE
• Joerg-Walter Hermann · Leichlingen, DE
• Siegfried Hossinger · Moitzfeld, DE
• Andreas Haeuseler · Cologne, DE

Key dates

• Filing date: Jul 20, 2016
• Grant date: Dec 27, 2022
• Expiry date: Jul 20, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B1/14
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

An asymmetrically substituted polyorganosiloxane comprising at least one or more siloxane blocks and different reactive groups at each end of the siloxane chain, e.g. an alkoxysilyl, alkenyl, epoxy, hydroxyaromatic or an ionic substituent. Each polyorganosiloxane block has substantially a monomodal chain length distribution and is suitable for the use as a surface modifying agent for organic or inorganic particles, as a surface active material, and/or as a compatibilizer in compositions having more two or more non-miscible phases.