Preparation for improving the reliability of electrical connecti

Details Preparation for improving the reliability of electrical connecti Preparation for improving the reliability of electrical connecti

1986-04-07

1987-02-17

Barr, Josephine L.

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

252503, 252506, 252508, 252512, 252518, 252514, 429121, 339278C, H01B 106

Patent

active

046438432

ABSTRACT:
In order to maintain the long term reliability of an electrical connection subjected to difficult environmental conditions, such as in the engine compartment of a motor vehicle, a paste-like preparation is provided for application at the conductively mating surfaces of the connection. A first embodiment of the preparation includes water, glycerin, a thixotropic agent and a hydrophilic substance, such as calcium chloride or lithium chloride, exhibiting sufficient hydrophilic action and in sufficient quantity as to maintain the preparation in a fluid state by absorbing moisture from the ambient atmosphere. Variants of the preparation include, as one or more additional ingredients, acetic acid and/or powdered graphite or metallic powder or flakes of high conductivity such as copper, aluminum or silver. A second and presently preferred embodiment of the preparation includes detergent, ethylene glycol, fine sand and powdered graphite in conjunction with a high concentration of calcium chloride or lithium chloride.

REFERENCES:
patent: Re31454 (1983-12-01), Hymes
Encyclopedia of Chemical Technology, vol. 12, 3rd Edition, p. 56, "Gum Karaya".

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