Title:
POLYMERIC PIEZOELECTRIC MATERIAL AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2013/089148
Kind Code:
A1
Abstract:
In the present invention, there is provided a polymeric piezoelectric material containing an optically active helical chiral polymer having a weight average molecular weight of 50,000 to 1,000,000, in which the crystallinity obtained by the DSC method is 20% to 80%, and the product of the aforementioned crystallinity and the normalized molecular orientation MORc, when the reference thickness measured using a microwave transmission-type molecular orientation meter is 50 μm, is 25 to 250.
Inventors:
YOSHIDA MITSUNOBU (JP)
NISHIKAWA SHIGEO (JP)
SHIMIZU MASAKI (JP)
FUKUDA HIROSHI (JP)
NISHIKAWA SHIGEO (JP)
SHIMIZU MASAKI (JP)
FUKUDA HIROSHI (JP)
Application Number:
PCT/JP2012/082237
Publication Date:
June 20, 2013
Filing Date:
December 12, 2012
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
H01L41/193; H01L41/08; H01L41/09; H01L41/22; H01L41/45
Domestic Patent References:
| WO2010104196A1 | 2010-09-16 |
Foreign References:
| JP2011117992A | 2011-06-16 | |||
| JP2005213376A | 2005-08-11 | |||
| JPH06142184A | 1994-05-24 | |||
| JP2005213376A | 2005-08-11 | |||
| JPH05152638A | 1993-06-18 | |||
| JPS5996123A | 1984-06-02 | |||
| JPH0733861A | 1995-02-03 | |||
| US2668182A | 1954-02-02 | |||
| US4057357A | 1977-11-08 | |||
| JP2011272708A | 2011-12-13 |
Other References:
See also references of EP 2662910A1
Attorney, Agent or Firm:
NAKAJIMA, Jun et al. (JP)
Nakajima 淳 (JP)
Nakajima 淳 (JP)
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Claims:
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