METHOD OF MAKING POWDER COMPOSITIONS OF AROMATIC POLYETHERSULPHONE AND FILLER, COMPOSITIONS MADE BY THE METHOD, AND ARTICLES MADE FROM THE COMPOSITIONS

摘要

Production of a compression or sinter-mouldable powder composition of polyethersulphone homopolymer having repeat unit -Ph-O-Ph-SO2- (-Ph- is p-phenylene) and a powder filler by (a) preparing a viscous but stirrable dispersion of the filler in dichloromethane which dispersion contains said polyethersulphone, (b) stirring the dispersion to produce a soft solid which breaks down into a powder, and (c) removing residual dichloromethane.