Process for improving mechanical properties of epoxy resins by addition of cobalt ions

US4473674A · kind A · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

• Diane M. Stoakley · Yorktown, US
• Anne K. St. Clair · Poquoson, US

Key dates

• Filing date: Nov 3, 1983
• Grant date: Sep 25, 1984
• Expiry date: Nov 3, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G59/32
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A resin product useful as an adhesive, composite or casting resin and the process for preparing same to improve the flexural strength mechanical property characteristics thereof. This improved flexural strength is attained with little or no change in density, thermal stability or moisture resistance by chemically incorporating 1.2 to 10.6% by weight Co(III) ions in an epoxidized resin system.