Adhesive organopolysiloxane composition which can be cured to form an elastomer

US5006372A · kind A · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Dietrich Wolfer · Unterhaching, DE
• Wilhelm Marsch · Haiming, DE

Key dates

• Filing date: Jul 3, 1989
• Grant date: Apr 9, 1991
• Expiry date: Jul 3, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2666/28
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Organopolysiloxane compositions which can be cured to form elastomers and contain: PA0 (a) An organopolysiloxane containing Si-bonded vinyl groups; PA0 (b) an organopolysiloxane containing Si-bonded hydrogen; PA0 (c) a platinum catalyst which promotes the addition of Si-bonded hydrogen to vinyl groups; PA0 (d) an inhibitor which delays the addition reaction of Si-bonded hydrogen with vinyl groups at room temperature, with the proviso that inhibitors containing a hydroperoxy radical are excluded; and PA0 (e) an organic peroxide, with the proviso that acyl peroxides are excluded; are used as adhesives. These adhesives are used to bond similar or dissimilar organopolysiloxane elastomers to each other and to bond organopolysiloxane elastomers to optionally primed substrates.