Fluoroplastic silicone vulcanizates

US7718727B2 · kind B2 · utility

Assignee

• Dow Corning Corporation · US

Inventors

• Mark Hartmann · Midland, US
• Igor Chorvath · Midland, US
• Lauren Tonge · Sanford, US
• Robert Leo Oldinski · Bay City, US
• James E. Thompson · Cincinnati, US
• David Romenesko · Midland, US
• Kermit S. Kwan · Cumming, US
• Stephen Warren · Midland, US

Key dates

• Filing date: May 7, 2009
• Grant date: May 18, 2010
• Expiry date: May 7, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/70
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Fluoroplastics containing fluorocarbon resins and silicones are prepared by first mixing a fluorocarbon resin with a compatibilizer, then adding a curable organopolysiloxane with a radical initiator, and vulcanizing the organopolysiloxane in the mixture. The fluoroplastics can be processed by various techniques, such as extrusion, vacuum forming, injection molding, blow molding or compression molding, to fabricate plastic parts. The resulting fabricated parts can be re-processed (recycled) with little or no degradation of mechanical properties.