Polyarylene ethers

US5212278A · kind A · utility

Assignee

• Ciba-Geigy · US

Inventors

• Rudolf Pfaendner · Rimbach, DE
• Thomas Kainmuller · Weil am Rhein, DE
• Kurt Hoffmann · Taufkirchen, DE
• Andreas Kramer · Zürich, CH
• Friedrich Stockinger · Hölstein, CH

Key dates

• Filing date: Mar 13, 1990
• Grant date: May 18, 1993
• Expiry date: Mar 13, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L63/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to polyarylene ethers which contain, based on the total amount of structural elements present in the polyether resin, 5-100 mol % of a recurring structural element of the formula I ##STR1## and 0-95 mol % of a recurring structural element of the formula II ##STR2## in which X and X' independently of one another are --SO--, --SO.sub.2 -- or --CO--, one of the radicals R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is phenyl or phenyl which is substituted by one to three (C.sub.1 -C.sub.4)alkyl groups and the remaining radicals R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently of one another are hydrogen, (C.sub.1 -C.sub.4)alkyl, phenyl or phenyl which is substituted by one to three (C.sub.1 -C.sub.4)alkyl groups, and A is an aromatic radical, at least 25% of the bonds X and/or Y and/or the bridge members contained in A being --SO.sub.2 --. These industrial materials are distinguished by very good mechanical properties and good solubility.