Organosiloxane compositions

US6599633B1 · kind B1 · utility

Assignee

• Dow Corning S.A. · BE

Inventors

• Andreas Wolf · Gauting, DE
• Andreas Stammer · Thiméon, BE
• Robert Dandois · Marbais, BE

Key dates

• Filing date: Oct 9, 2001
• Grant date: Jul 29, 2003
• Expiry date: Oct 9, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31663
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A silicone composition comprising a polymer having siloxane units and two or more silicon bonded hydroxyl or hydrolyzable groups per molecule; a crosslinker; an extender material which is either an alkyl substituted aryl compound such as a heavy alkylate, or a alkylcycloaliphatic compound; and a u.v. light stabilizer comprising a benzotriazole moiety. These compositions are useful, for example as room temperature vulcanizable sealants. They retain color clarity or transparency, even on ageing.