Process for the production of a block of piezoelectric macromolecular material
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United States of America Patent
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Feb 19, 1985
Grant Date -
N/A
app pub date -
Sep 27, 1982
filing date -
Dec 31, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to the production of blocks of macromolecular material displaying piezoelectric and pyroelectric properties and provides a production process consisting in drawing a thin strip of a film of macromolecular material from a feed reel, electrically polarizing the said film and coating it with adhesive by means of a solution based on a polymeric binder before the forming on a mandrel of a roll of which the turns form, after drying, a monolithic structure which may be split into blocks. The invention finds particular use in the production of electromechanical transducers for applications connected with electroacoustics and underwater acoustics.
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