CONDUCTIVE, NON-GETTING DIRTY FIBRE OF HIGH CHEMICAL RESISTANCE, METHOD OF ITS FABRICATION AND APPLICATION

摘要

A hotmelt spun fiber has a core and a mantle structure having a combined tensile stregnth of at least 15 cN/tex. The core is a synthetic thermoplastic polymer which is not a fluoro-polymer. The mantle is a hotmelt spun fluoropolymer incorporating particles which are electrical conductors. The core is a synthetic thermoplastic polymer esp. polyester. e.g. polyethylenterephthalate or a liquid crystaline polyester. Also claimed is a hotmelt spinning process in which two compatible polymers are selected in which the melting point of the second polymer is at least 20C below that of the first, and in which the two polymers are co-extruded and stretched to achieve the desired tensile strength value.