Toughened thermosetting structural materials

US5605745A · kind A · utility

Assignee

• CYTEC TECHNOLOGY CORP. · US

Inventors

• Hans-Gert Recker · Ludwigshafen, DE
• J. Timothy Hartness · Tega Cay, US
• Thomas Folda · Collierville, US
• Helmut Tesch · Bad Dürkheim, DE
• Thomas Weber · Ludwigshafen, DE
• Jack D. Boyd · Westminster, US

Key dates

• Filing date: Dec 29, 1994
• Grant date: Feb 25, 1997
• Expiry date: Dec 29, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/2984
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The incorporation of 2 to 35 .mu.m particles of a differentially soluble engineering thermoplastic into heat curable epoxy resin systems significantly increases the toughness of such systems without loss of other desirable properties. These toughened epoxy resin systems are useful in preparing carbon fiber reinforced composites having compression strength after impact (CAI) of greater than 45. Ksi 310 MPa after a 1500 in-lb/in impact.