H - Electricity – 01 – B
Patent
H - Electricity
01
B
18/771, 337/82
H01B 3/30 (2006.01) H01B 3/42 (2006.01) H01B 13/14 (2006.01)
Patent
CA 1136817
Abstract An improved method of producing enamel-insulated winding wire is disclosed which comprises extruding around a conductor wire a coating of a partly crystalline thermoplastic having a crystallite melting point above 170°C and comprising an aromatic polyether ketone of the formula: Image wherein each Ar may be the same or different and represents an aromatic radical and n signifies a whole number between 50 and 200. The product exhibits improved softening temperature meeting industry standards, as well as satisfactory heat-shock values and surface hardness.
360090
Janssen Harald
Kertscher Eberhard
Beck (dr.) Co. Ag.
Fetherstonhaugh & Co.
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