Temperature-resistant silicone resins

US9309359B2 · kind B2 · utility

Assignee

• The Boeing Company · US

Inventors

• Chaoyin Zhou · Chino, US
• Andrew P. Nowak · Los Angeles, US
• Richard E. Sharp · Weldon Spring, US
• Wen Li · Irvine, US
• James E. French · Ballwin, US

Key dates

• Filing date: Jul 11, 2014
• Grant date: Apr 12, 2016
• Expiry date: Jul 11, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K2003/2265
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Methods and formulations for modified silicone resins of Formula (I) are presented:The R1, R2, and R3 are each independently selected from a group consisting of H, alkyl, alkenyl, alkynyl, and aryl; n ranges from 1 to 10; m ranges from 1 to 200; and p ranges from 2 to 1,000. The elastomeric materials prepared from modified silicone resins display robust mechanical properties following prolonged exposure to high temperatures (e.g., 316° C. or higher).