Epoxy resin with increased flexural impact strength and breaking extension

US7811668B2 · kind B2 · utility

Assignee

• Solvay Infra Bad Hoenningen GmbH · DE

Inventors

• Rainer Stahl · Nuremberg, DE
• Won Jai Park · Oettingen, DE
• Ferdinand Hardinghaus · Bad Honnef, DE
• Christopher David Glende · Oettingen, DE
• Karl Koehler · Bad Salzdetfurth, DE

Key dates

• Filing date: Dec 1, 2004
• Grant date: Oct 12, 2010
• Expiry date: Mar 21, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31511
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Epoxy resins comprising deagglomerated barium sulphate with an average particle size of less than 0.5 μM feature increased flexural impact strength and breaking extension. Epoxy resins of this kind can be used as, for example, composite material or binders in watercraft construction, in wind turbines, in pipes, for containers or in aircraft construction, in particular in composite materials comprising glass fibre or carbon fibre.