Solvent leak detecting sensor
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United States of America Patent
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-
Jan 30, 1990
Grant Date -
N/A
app pub date -
Jul 14, 1989
filing date -
Aug 11, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A solvent leak detecting sensor is provided comprising: (a) a first electrical conductor and a second electrical conductor installed on an electrically insulating substrate in the form of a detection circuit network, the conductors being exposed and separated from each other, (b) the exposed portions of the first conductor and second conductor being covered by a layer of an electrically insulating material which is both water-repellent and which is dissolvable by the solvent that is to be detected, and (c) a top layer covering the layer in 'b', this top layer being both porous and electrically conductive. The layer which is both water-repellent and which is dissolvable by the solvent that is to be detected is preferably polyvinylchloride, and the top layer is preferably conductive carbon powder.
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