POROUS RESIN SHEET FOR PIEZOELECTRIC/PYROELECTRIC ELEMENT, AND PROCESS FOR PRODUCTION THEREOF

WIPO Patent Application WO/2010/143687

A1

Disclosed is a porous resin sheet for a piezoelectric/pyroelectric element, which has a high piezoelectric modulus and a high compressive stress and also has excellent heat resistance. Also disclosed is a process for producing the porous resin sheet. The porous resin sheet for a piezoelectric/pyroelectric element contains air bubbles having an average maximum vertical chord length of 1 to 40 μm and an average aspect ratio [an (average maximum horizontal chord length)/(average maximum vertical chord length) ratio] of 0.7 to 4.0 and has a volume porosity of 20 to 75%.

YAMAZAKI,Natsuko (1-1-2 Shimohozumi,Ibaraki-sh, Osaka 80, 〒5678680, JP)
山崎　奈都子 (〒80 大阪府茨木市下穂積１丁目１番２号　日東電工株式会社内 Osaka, 〒5678680, JP)
OCHIAI,Keiko (1-1-2 Shimohozumi,Ibaraki-sh, Osaka 80, 〒5678680, JP)
落合　恵子 (〒80 大阪府茨木市下穂積１丁目１番２号　日東電工株式会社内 Osaka, 〒5678680, JP)

JP2010/059843

December 16, 2010

June 10, 2010

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NITTO DENKO CORPORATION (1-1-2, ShimohozumiIbaraki-sh, Osaka 80, 〒5678680, JP)
日東電工株式会社 (〒80 大阪府茨木市下穂積１丁目１番２号 Osaka, 〒5678680, JP)
Kansai University (3-3-35, Yamate-choSuita-sh, Osaka 80, 〒5648680, JP)
学校法人　関西大学 (〒80 大阪府吹田市山手町３丁目３番３５号 Osaka, 〒5648680, JP)
YAMAZAKI,Natsuko (1-1-2 Shimohozumi,Ibaraki-sh, Osaka 80, 〒5678680, JP)
山崎　奈都子 (〒80 大阪府茨木市下穂積１丁目１番２号　日東電工株式会社内 Osaka, 〒5678680, JP)

H01L41/193; C08J9/26; H01B3/00; H01L37/02; H01L41/26

UNIUS PATENT ATTORNEYS OFFICE (SHIN-OSAKA MT Bldg. 1, 13-9 Nishinakajima 5-chome, Yodogawa-ku, Osaka-sh, Osaka 11, 〒5320011, JP)

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