Blends based on copolyarylene ether sulfones
AssigneeBASF SE
InventorsMartin Weber, Gerhard Leiter, J urgen Streib, Eckhard M. Koch
Life of this patent
Estimating the term…
Abstract
Blends comprise A) from 55 to 99% by weight of a matrix of copolyarylene ether sulfones composed of a.sub.1) from 91 to 97 mol % of structural units ##STR1## a.sub.2) from 3 to 9 mol % of structural units ##STR2## B) from 1 to 45% by weight of a disperse phase comprising copolyarylene ether sulfones, composed of b.sub.1) from 91 to 97 mol % of structural units II and b.sub.2) from 3 to 9 mol % of structural units I, C) from 0 to 40% by weight of rubber impact modifiers, D) from 0 to 60% by weight of fibrous or particulate fillers or of mixtures thereof and E) from 0 to 40% by weight of processing assistants and/or additives.
Claims6
A blend of polyarylene ether sulfones comprising
- A) from 55 to 99% by weight of a matrix of copolyarylene ether sulfones composed of
- a.sub.1) from 91 to 97 mol % of structural units ##STR7## a.sub.2) from 3 to 9 mol % of structural units ##STR8## B) from 1 to 45% by weight of a disperse phase comprising copolyarylene ether sulfones, composed of
- b.sub.1) from 91 to 97 mol % of structural units II and
- b.sub.2) from 3 to 9 mol % of structural units I, and
- C) from 0 to 40% by weight of rubber impact modifiers.
A process for the preparation of a blend comprising mixing in the melt
- A) from 55 to 99% by weight of a matrix of copolyarylene ether sulfones composed of
- a.sub.1) from 91 to 97 mol % of structural units ##STR9## a.sub.2) from 3 to 9 mol % of structural units ##STR10## B) from 1 to 45% by weight of a disperse phase comprising copolyarylene ether sulfones, composed of
- b.sub.1) from 91 to 97 mol % of structural units II and
- b.sub.2) from 3 to 9 mol % of structural units I, and
- C) from 0 to 40% by weight of rubber impact modifiers.
Dependencies are inferred from the claim text.