Crosslinkable compositions based on organosilicon compounds

US9249301B2 · kind B2 · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Peter Schoeley · Meißen, DE
• Gabriele Dineiger · Meißen, DE
• Uwe Scheim · Coswig, DE

Key dates

• Filing date: May 16, 2013
• Grant date: Feb 2, 2016
• Expiry date: May 16, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/16
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Curable RTV-1 organopolysiloxane compositions which maintain the properties and adhesive strength even in hot moist conditions include a bis-hydroxyl-functional organopolysiloxane, an organosilicon compound comprising an α-alkoxysilane bonded through a methylene group to a heteroatom of a heterocyclic compound, and a branched, non-resinous alkoxyfunctional organopolysiloxane containing at least 20 mol percent of R5SiO3/2 moieties where R5 is a hydrocarbyl radical.