Abstract:
A process for the electrophoretic coating or repair of flaws in insulation of electrical components which employs non-aqueous solutions comprising liquid nitroalkanes as a solvent, consisting essentially of a resin dissolved in the solvent together with surface active agents, and desirably containing small amounts of a finely divided inorganic filler, to provide improved coverage on sharp edges of members being coated. The electrophoretically applied coating is then heat treated.
Abstract:
A sensing device is made by protectively packaging a cholesteric liquid crystalline material containing from about 0.3 to 7 weight percent of an ultraviolet radiation stabilizer consisting of either aromatic azo or aromatic azoxy compounds, in a clear compatible protective polymeric material.
Abstract:
A METHOD FOR COATING OF POLYIMIDE BY ELECTRODEPOSITION A method of coating a copper substrate comprises the steps of: anodically microsmoothing the copper substrate in an acid bath to provide a substantially smooth surface; electrocoating the microsmoothed substrate with a pin hole free nickel film having a thickness of between about 2.5 microns to about 12.5 microns; single step, nonaqueous electrocoating the microsmoothed, nickel coated substrate with a pin hole free polyamic acid polymer, and curing the polyamic acid coating to form a polyimide film free of copper ion contamination.
Abstract:
46,325 WIRE CLEANING SYSTEM Wire is cleaned by passing it through an electrolytic cleaner then through an ultrasonic rinse, The electrolytic cleaner comprises a graphite tube through which the wire passes, an alkaline aqueous solution between the wire and the graphite tube, and an electric current, at least half D.C., between the wire and the graphite tube.