Sulfonic acid composition for forming thermoparticulating coating
AssigneeWestinghouse Electric Corp.
InventorsJames D. B. Smith, David C. Phillips
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Abstract
A composition is disclosed of a sulfonic acid or amine salt thereof, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermoparticulating coating. When the electrical apparatus overheats the sulfonic acid or amine sulfonate in the coating forms particles in the gas stream which are detected by a monitor.
Claims16
A composition comprising
- 1. a thermoparticulating compound selected from the group consisting of sulfonic acids, amine salts of sulfonic acids, and mixtures thereof;
- and
- 2. a solution of a resinous carrier curable at room temperature, stable at 60.degree. C., and unreactive with said thermoparticulating compound.
A thermoparticulating coating comprising a solid layer of a cured resinous carrier containing an unreacted compound selected from the group consisting of sulfonic acids, their amine salts, and mixtures thereof.
Dependencies are inferred from the claim text.