Chemically resistant diaphragm
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United States of America Patent
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-
Jun 8, 1993
Grant Date -
N/A
app pub date -
Feb 19, 1992
filing date -
Feb 19, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A composite diaphragm containing a flexible composite of a flexible polymer and an expanded polytetrafluoroethylene fabric on which is adhered to one surface a solid polytetrafluoroethylene layer. Additionally a composite diaphragm is disclosed which has a concentrically arranged ribbed elastomeric layer attached to a solid polytetrafluoroethylene layer.
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