Arichem, Alabama, reports increasing demand for its non-halogenated sulphonate PIN FR for polycarbonate, resulting from listing as SVHC (substance of very high concern) of potassium perfluorobutane sulphonate (and analogues). Arichem’s potassium 3-(phenylsulphonyl)benzenesulphonate (EINECS 264-097-3) is not Hazard classified. It can be used as a PIN flame retardant in both transparent and opaque polycarbonates, achieving e.g. UL 94 v-0 3.2 mm at 0.2% loading or 1.6 mm at 0.6% loading with 4% phenyl methyl siloxane another PIN compound containing silicon) in transparent polycarbonate. The potassium PIN FR can also be used in synergy with phosphorus PIN FRs such as RDP or BDP. Applications include light and LED housings, automotive, electronics, interior decoration.
PIN FR replacing perfluorinates
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