Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1985-06-14
1987-03-03
Newsome, John H.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427 541, 427118, B05D 306
Patent
active
046474749
ABSTRACT:
A process for producing an insulating twisted electric wire having a reduced overall diameter with an insulating coating of high quality. The insulating coating has a thickness in a range of 3 to 100% of the radius of a smallest circle circumscribing the assembled set of twisted conductors. The insulating coating is formed by two or more cycles of coating and curing an insulating paint. Preferably, a bottom layer of the insulating coating is formed by applying a heat-curable insulating paint with a felt applicator or with a roller coating device. The heat-curable insulating paint should have a viscosity of not more than about 300 cps at 30.degree. C.
REFERENCES:
patent: 2266392 (1941-12-01), Durant et al.
patent: 2438956 (1948-04-01), Warner
patent: 3196060 (1965-07-01), Priaroggia
patent: 3291639 (1966-12-01), Flowers et al.
patent: 4342794 (1982-08-01), Volker et al.
Katsuda Morihiko
Masuda Shigeo
Ueoka Isao
Newsome John H.
Sumitomo Electric Industries Ltd.
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