Method for the production of polymerizable silicones

US8101789B2 · kind B2 · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Markus Jandke · Altötting, DE
• Florian Koopmann · Burghausen, DE
• Birgit Peschanel · Burghausen, DE

Key dates

• Filing date: Jan 8, 2008
• Grant date: Jan 24, 2012
• Expiry date: Jan 25, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/0876
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Siloxy-substituted silane-containing polymerizable silicones are prepared in high purity by metering a substituted alkoxysilane into a mixture of disiloxane, acetic acid, and acid catalyst, adding acetyl chloride, separating an acidic phase from a product phase, and adding hexamethyldisilazane to the product phase, which is then distilled.