Water borne hermetic coating
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United States of America Patent
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Dec 15, 1992
Grant Date -
N/A
app pub date -
Dec 3, 1991
filing date -
Dec 3, 1991
priority date (Note) -
Expired
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Abstract
An hydrolytically stable, heat-curable composition useful as an hermetic varnish for electrical conductors comprising an aqueous solution with or without organic co-solvents of: 1) an adduct of an epoxide of a phenol-formaldehyde condensate and a dialkanolamine, and 2) a water-soluble curing agent comprising both a phenoplast alcohol and an aminoplast such as a melamine for example, hexamethoxymethylmelamine; the cured products thereof which are useful as hermetic varnishes for electrical conductors. i.e. varnishes exposed to refrigerants such as fluorocarbons.
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