Piezo-electric material
First Claim
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1. 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 ×
- 109 dyne/cm2, the blend polymer resin comprising 10 to 90 percent by volume of the composite, the composite being molded and electretized.
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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.
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Citations
9 Claims
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1. 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 ×
- 109 dyne/cm2, the blend polymer resin comprising 10 to 90 percent by volume of the composite, the composite being molded and electretized.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
Specification