Insulation process by impregnation of electric leads

Details Insulation process by impregnation of electric leads Insulation process by impregnation of electric leads

1984-07-27

1985-09-24

Bueker, Richard

Coating processes

Electrical product produced

427116, 427386, 4273882, 4273897, 29592R, B05D 512

Patent

active

045432724

ABSTRACT:
Insulation process by impregnation of electric leads using isocyanate and oxazolidone cycle resins in which a glass cloth and porous mica paper tape is wound around the leads, the tape is impregnated with a quaternary ammonium salt, catalyzing condensation of isocyanate and epoxy derivatives in isocyanurate and oxazolidone cycles and with a varnish comprising a liquid epoxy resin and an isocyanate derivative, then the impregnated tape undergoes a heat treatment for polymerization of the varnish.
As quaternary ammonium salt, is used a benzyltrialkylammonium halide with alkyl chain containing at most 3 carbon atoms, the tape is first impregnated with benzyltrialkylammonium halide and liquid epoxy resin, it is dried at a temperature equal to 135.degree. C. at maximum and then it is impregnated with isocyanate derivative based varnish before undergoing the polymerizing heat treatment.

REFERENCES:
patent: 3020262 (1962-02-01), Speranza
patent: 3313747 (1967-04-01), Schramm
patent: 3334110 (1967-08-01), Schramm
patent: 3778536 (1973-12-01), Smearing
patent: 3876618 (1975-04-01), Clarke
patent: 4356417 (1982-10-01), Smith et al.

Affiliated with

Also associated with

Rating

Insulation process by impregnation of electric leads does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Insulation process by impregnation of electric leads, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Insulation process by impregnation of electric leads will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1613738