Piezo-electric material
AssigneeMitsubishi Petrochemical Co., Ltd.
InventorIwao Seo
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Abstract
Piezo-electric material comprising composite of acetal resin which is blended with polymer having high relative permittivity and piezo-electric ceramics powder, the composite being molded and electeretized. The piezo-electric material has excellent moldability and pliability.
Claims9
Piezo-electric material which comprises a composite of blend polymer resin and piezo-electric ceramic powder, the blend polymer resin consisting of 99 to 20 percent by weight acetal resin and 1 to 80 percent by weight polar polymer said polymer having a relative permittivity above 4.0 and a modulus of elesticity under 8.0 .times. 10.sup.9 dyne/cm.sup.2, the blend polymer resin comprising 10 to 90 percent by volume of the composite, the composite being molded and electretized.
Dependencies are inferred from the claim text.