| 摘要 |
<p>An antistatic polymeric composition comprising a base polymer, constituting 20 to 98.9 per cent by weight of the composition, includes both a surface active agent constituting 0.1 to 30 per cent by weight of the composition and an antistatic additive constituting 1 to 50 per cent by weight of the composition. The surface active agent comprises at least one compound selected from an amino, sulphonyl or phosphonyl titanate, zirconate or zircoaluminate and the antistatic additive is a polymer derived from ethylene oxide and at least one other monomer selected from an epihalohydrin, propylene oxide, and a cyclic monomer. The composition preferably contains a compatabilizer. Optionally, the composition may contain a mineral filler, constituting 0.1 to 70 per cent by weight of the composition, such as a metal oxide, for example an oxide of titanium, zinc, tin, antimony or aluminium, a metal silicate, aluminosilicate or carbonate or silicon oxide. The base polymer may be a homopolymer or copolymer of ethylene, propylene or styrene, an aliphatic or aromatic polyester, a polyamide, a polycarbonate or an elastomer or a combination of more than one of these. The antistatic polymeric composition should have surface resistivity of the order of 10<1>0 ohm/sq.</p> |
