| 摘要 |
<p>1,253,979. Coated monofilaments. TEIJIN Ltd. 20 Nov., 1968 [20 Nov., 1967: 5 April, 1968 (2)], No. 55155/68. Heading B2E. [Also in Division D1] An electrically conductive fibre (or filaments) comprises a fibrous substrate of 5-50d consisting of a monofilament (or bundle of two or more filaments) each filament carrying an electrically conductive coating of 0.3 to 10Á thick comprising finely divided silver or conductive carbon black, or a mixture thereof, dispersed in a resinous binder in an amount such that the fibre has an electrical resistance not exceeding 10<SP>9</SP>-O-/cm. The conductive fibre is present in a yarn containing non-conductive fibres and this yarn is woven or knitted with another yarn of non-conductive fibres so that the fabric contains 0.005-2% of the conductive fibres. The conductive fibre may have a tenacity of at least 1g/den, a breakage elongation of at least 3% and an initial Young's modulus of less than 3000 kg/mm<SP>z</SP>. The resinous binder may be of the acrylic, epoxy, phenolic, urethane, melamine, urea, polyester, vinyl or silicone type, or natural or synthetic rubber, or mixtures of these, and may also contain thickeners, anti-aging agents flexibility modifying agents, and curing agents. The fibrous substrate may be polyamide, polyester, polyolefin, polyacrylic, polyvinyl acetal, polyurea, polyimide, or blends thereof. The conductive yarn can be doubled, twisted and crimped. The distance between adjacent electrically conductive yarns in the fabric may be less than 20 cm.</p> |
