Title:
PIEZOELECTRIC LAMINATED FILM AND METHOD FOR PRODUCING PIEZOELECTRIC LAMINATED FILM
Document Type and Number:
WIPO Patent Application WO/2022/230622
Kind Code:
A1
Abstract:
Provided is a piezoelectric laminated film that is not discolored in high-temperature, high-humidity environments. This piezoelectric laminated film is configured from a piezoelectric film and a transparent adhesive film that satisfies condition 1. Condition 1: When a volatile component obtained from a test piece measuring about 1 cm2 upon being held for 90 minutes at 85°C is subjected to solid-phase microextraction, caused to adsorb to fibers coated with polydimethylsiloxane, and analyzed through gas chromatograph mass spectrometry, the total amount of organic matter detected within a three-minute retention time is 50 μg in terms of the weight of 2,2'-azobis(isobutyronitrile).
Inventors:
OHISA SHINJI (JP)
IMAJI MAKOTO (JP)
IMAJI MAKOTO (JP)
Application Number:
PCT/JP2022/017048
Publication Date:
November 03, 2022
Filing Date:
April 04, 2022
Export Citation:
Assignee:
KUREHA CORP (JP)
International Classes:
B32B27/00; B32B7/025; C08J7/00; H01L41/193
Domestic Patent References:
| WO2016093120A1 | 2016-06-16 | |||
| WO2015064328A1 | 2015-05-07 | |||
| WO2013021835A1 | 2013-02-14 | |||
| WO2015156196A1 | 2015-10-15 |
Foreign References:
| JP2017105878A | 2017-06-15 | |||
| JP2015075968A | 2015-04-20 | |||
| JP2020143242A | 2020-09-10 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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