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Insulated Wire Assemblies

IP.com Disclosure Number: IPCOM000073778D
Original Publication Date: 1971-Feb-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Cornish, BE: AUTHOR [+3]

Abstract

This multiconductor cable comprises a plurality of separated wires with insulative film coatings formed thereon by electrophoresis from a latex polymer dispersion in a one-step coating procedure. Conductors 1a, 1b, 1c have grease or oil contamination removed by a cleansing sponge 20 in precleansing bath 21. Conductors 1a, 1b, 1c are fired with fixed relative spacing by guide passages 2 into polymer latex dispersion 3 in vessel 4. Positive voltage from battery 6 is connected in parallel through roller 7 to the conductors and negative voltage connects source 6 through switch 8 to vessel electrode 4a.

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Insulated Wire Assemblies

This multiconductor cable comprises a plurality of separated wires with insulative film coatings formed thereon by electrophoresis from a latex polymer dispersion in a one-step coating procedure. Conductors 1a, 1b, 1c have grease or oil contamination removed by a cleansing sponge 20 in precleansing bath 21. Conductors 1a, 1b, 1c are fired with fixed relative spacing by guide passages 2 into polymer latex dispersion 3 in vessel 4. Positive voltage from battery 6 is connected in parallel through roller 7 to the conductors and negative voltage connects source 6 through switch 8 to vessel electrode 4a.

The latex ingredients, the time of voltage application and the amplitude are selected by design relative to the motion rate of the conductors. The design is such that polymer films formed by electrophoresis upon the individual conductors ultimately fuse into a unified holding and spacing medium which, when dried, has desirable properties of dimensional and thermal stability. Dimensional tests are performed by thickness measuring apparatus 14. The structure of coating 12 is crack-free, void-free and has abrasion resistance, flexibility, high dielectric strength and uniform cohesion to the spaced conductors.

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