Polysulphone composition with very high notched impact strength

摘要

A composition (I) containing (A) 75-90 wt.% polysulphone, (B) 20-5 wt.% thermoplastic polycarbonate, and (C) 3-7 wt.% acrylate rubber. Also claimed are (i) a process for reducing the notch-sensitivity of polysulphone (A) by preparing a mixture with (B) and (C) in a weight ratio of (B):(C) = (5:1)-(1:1) and then moulding the mixture; and (ii) a composition for use in modifying the impact strength of polysulphone, containing (B) and (C) in the above ratio.