Phosphorus-modified epoxy resins, process for the preparation thereof and use thereof

US5756638A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Wolfgang von Gentzkow · Kleinsendelbach, DE
• Jürgen Huber · Erlangen, DE
• Heinrich Kapitza · Fürth, DE
• Wolfgang Rogler · Erlangen, DE
• Hans-Jerg Kleiner · Kronberg, DE
• Uwe Schönamsgruber · Wendelstein, DE

Key dates

• Filing date: Oct 27, 1995
• Grant date: May 26, 1998
• Expiry date: Oct 27, 2015

Classification

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

Abstract

The present invention relates to phosphorus-modified epoxy resins having an epoxy number from 0 to 1 mol/100 g, comprising structural units which are derived from PA0 (A) polyepoxy compounds having at least two epoxy groups per molecule, and PA0 (B) phosphinic and/or phosphonic anhydrides. The invention further provides a process for preparing these phosphorus-modified epoxy resins and provides for the use of the resins in producing moldings, coatings or laminates.