Temperature-resistant silicone resins

US9534089B2 · 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: Jan 3, 2017
• Expiry date: Jul 11, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K2003/2272
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Methods and formulations for modified silicone resins of Formula (II) are presented. Formula (II) comprises at least one of each of the following subunits:The R1, R2, R3, R6, R7, R8, R9, R10, R11, R12 and R13 are each independently selected from a group consisting of H, alkyl, alkenyl, alkynyl, and aryl. The X is selected from a group consisting of arylene, transition metal, inorganic oxide, and silsesquioxane. The values oft ranges from 1 to 10, y ranges from 1 to 200 and z ranges from 1 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).