Soluble polyarylene ether sulfones

US5126427A · kind A · utility

Assignee

• Ciba-Geigy · US

Inventors

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

Key dates

• Filing date: Mar 6, 1991
• Grant date: Jun 30, 1992
• Expiry date: Mar 6, 2011

Classification

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

Abstract

Polyarylene ether sulfones which have a reduced viscosity of 0.1 to 2.0 dl/g, measured at 25.degree. C. in a 1% solution in N-methylpyrrolidone (NMP), and which contain, based on the total number of structural units present in the polyarylene ether sulfone resin, 99-1 mol % of a recurring structural unit of formula I ##STR1## and 1-99 mol % of a recurring structural unit of formula II EQU --O--Ar.sub.2 --O--Ar.sub.1 -- (II) wherein the aromatic rings in the structural unit of formula I are unsubstituted or substituted by one or more C.sub.1 -C.sub.4 alkyl groups, C.sub.1 -C.sub.4 alkoxy groups or halogen atoms, Ar.sub.1 is a radical of formula IIIa-IIIc ##STR2## wherein a is 0 or 1, ##STR3## which radical is unsubstituted or substituted by one or more C.sub.1 -C.sub.4 alkyl groups, C.sub.1 -C.sub.4 alkoxy groups or halogen atoms, and Ar.sub.2 is a radical of formula IVa-IVe ##STR4## wherein b is 0 or 1 ##STR5## wherein c is 0 or 1 ##STR6## wherein Z is --CO--, --SO.sub.2 --, --SO--, --S--, --O--, ##STR7## wherein R is methyl or phenyl, which radical is unsubstituted or substituted by one or more C.sub.1 -C.sub.4 alkyl groups, C.sub.1 -C.sub.4 alkoxy groups or halogen atoms, are sol…