Process for the production of a block of piezoelectric macromole

Details Process for the production of a block of piezoelectric macromole Process for the production of a block of piezoelectric macromole

1982-09-27

1985-02-19

Woo, Jay H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

84DIG24, 156189, 156193, 156250, 1562733, 1562746, 1563809, 264 22, 361225, B32B 3108

Patent

active

045003777

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.

REFERENCES:
patent: 2774747 (1956-12-01), Wolfson et al.
patent: 2865790 (1958-12-01), Baur
patent: 2944117 (1960-07-01), Gray
patent: 3030290 (1962-04-01), Ryan
patent: 3031357 (1962-04-01), Balkin et al.
patent: 3146146 (1964-08-01), Anderson
patent: 3378704 (1968-04-01), Miller et al.
patent: 3712951 (1973-01-01), Rickard
patent: 4278000 (1981-07-01), Saito et al.
patent: 4346505 (1982-08-01), Lemonon et al.

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