Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1996-05-17
1998-03-10
Edwards, Newton
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
428375, 428379, 174110FC, 174110SR, D02G 300, H01B 700, B32B 2700
Patent
active
057259534
ABSTRACT:
An insulating material comprised of a benzimidazole-based polymer layer and a fluorine-containing rubber layer. This material is heat-resistant and is especially useful for use in electric wires. To manufacture such wires, a varnish solution is prepared by dissolving partially polymerized benzimidazole-based polymers in a solvent, then adding a polymerization initiator thereto. Subsequently, an electric wire is soaked in the solution and heated to cross-link the benzimidazole-based polymers. By repeating this procedure, the electric wire is coated with any desired thickness of a benzimidazole-based polymer layer. This coated wire is further coated with a fluorine-containing rubber layer to obtain a heat-resistant electric wire that is also resistant to dielectric breakdown.
REFERENCES:
patent: 3708439 (1973-01-01), Sayigh et al.
patent: 4273829 (1981-06-01), Perreault
patent: 4973629 (1990-11-01), Williams et al.
patent: 5017681 (1991-05-01), Wadhwa et al.
Itoh Takashi
Onishi Yasuhiko
Tamura Yoshihiro
Bierman Jordan B.
Edwards Newton
Sumitomo Wiring Systems Ltd.
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