Blends based on polysulphones

Several blends based on polysulphone materials have been marketed. Probably the most well known is Mindel, originally produced by Uniroyal, acquired by Union Carbide, but now marketed by Amoco. Whilst not exhibiting the heat resistance of the unblended homopolymer, Mindel materials, which are blends of polysulphone and ABS, are lower in cost, easier to process and have higher notched impact strengths. The Mindel A materials are unreinforced, the Mindel B grades contain glass fibre, and the Mindel M grades contain other mineral fillers. A related polysulphone/SAN blend has been marked as Ucardel. 

A 50/50 blend of Udel and ABS based on a-methylstyrene was introduced by Uniroyal but is now marketed by USS Chemicals as Arylon T. This material has a heat deflection temperature almost identical to that of the unfilled Mindel materials (150°C). 

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