Thermotropic, aromatic polyesters having good mechanical strength, containing sulfonic acid groups or metal sulfonate groups a process for the production thereof

US4599395A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans-Rudolf Dicke · Bestwig, DE
• Manfred Schmidt · Krefeld, DE
• Mark W. Witman · Pittsburgh, US
• Aziz El-Sayed · Leverkusen, DE

Key dates

• Filing date: Oct 9, 1984
• Grant date: Jul 8, 1986
• Expiry date: Oct 9, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K19/3809
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Thermotropic fully-aromatic polyesters which contain sulphonic acid and/or metal sulphonate groups bound to the aromatic rings of the polyester, have improved mechanical properties.