Alloys having one glass transition temperature

US5189104A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Michael Haubs · Bad Kreuznach, DE
• Otto Hermann-Schonherr · Bensheim, DE
• Harald Cherdron · Niedernhausen, DE

Key dates

• Filing date: Oct 10, 1990
• Grant date: Feb 23, 1993
• Expiry date: Oct 10, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L79/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polymer alloys based on polybenzimidazoles are of great interest in industry due to their extraordinary thermal and mechanical properties. Alloys composed of a homo- or copolybenzimidazole and poly-N-vinylpyrrolidone are homogeneously mixed and have only one glass transition temperature.