Method for producing low-halogen polybiphenylsulfone polymers

US9469732B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Martin Weber · Maikammer, DE
• Christian Maletzko · Altrip, DE
• Gerhard Lange · Berlin, DE
• Jörg Erbes · Karlsruhe, DE
• Matthias Dietrich · Weinheim, DE
• Nicolas Inchaurrondo · Mannheim, DE
• Christoph Sigwart · Schriesheim, DE

Key dates

• Filing date: Jul 31, 2015
• Grant date: Oct 18, 2016
• Expiry date: Jul 31, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2207/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the production of low-halogen-content polybiphenyl sulfone polymers, to the resultant polybiphenyl sulfone polymers, to polybiphenyl sulfone polymers having less than 400 ppm content of polymer-bonded halogen, to thermoplastic molding compositions comprising these polybiphenyl sulfone polymers, and to their use for the production of moldings, of fibers, of films, of membranes, or of foams.