Title:
INSULATING FILM FOR ELECTROMAGNETIC COIL, AND MOTOR AND TRANSFORMER EACH EQUIPPED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2011/071003
Kind Code:
A1
Abstract:
Disclosed is an insulating film for electromagnetic coils which is constituted of a liquid-crystal polyester characterized by comprising structural units represented by the following formulae (1), (2), and (3) and having a content of structural units including a 2,6-naphthalenediyl group of 40 mol% or more of the total content of all structural units.
(1) -O-Ar1-CO-
(2) -CO-Ar2-CO-
(3) -O-Ar3-O-
(In the formulae, Ar1 represents 2,6-naphthalenediyl, 1,4-phenylene, or 4,4'-biphenylene; Ar2 and Ar3 each independently represents 2,6-naphthalenediyl, 1,4-phenylene, 1,3-phenylene, or 4,4'-biphenylene; and the hydrogen atoms in the group represented by Ar1, Ar2, or Ar3 each independently may have been replaced with a halogen atom, a C1-10 alkyl, or a C6-20 aryl.)
Inventors:
HOSODA Tomoya (1-6-2-206, Kasuga Tsukuba-sh, Ibaraki 21, 〒3050821, JP)
細田 朋也 (〒21 茨城県つくば市春日１－６－２－２０６ Ibaraki, 〒3050821, JP)
細田 朋也 (〒21 茨城県つくば市春日１－６－２－２０６ Ibaraki, 〒3050821, JP)
Application Number:
JP2010/071803
Publication Date:
June 16, 2011
Filing Date:
December 06, 2010
Export Citation:
Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED (27-1, Shinkawa 2-chome Chuo-k, Tokyo 60, 〒1048260, JP)
住友化学株式会社 (〒60 東京都中央区新川二丁目２７番１号 Tokyo, 〒1048260, JP)
HOSODA Tomoya (1-6-2-206, Kasuga Tsukuba-sh, Ibaraki 21, 〒3050821, JP)
住友化学株式会社 (〒60 東京都中央区新川二丁目２７番１号 Tokyo, 〒1048260, JP)
HOSODA Tomoya (1-6-2-206, Kasuga Tsukuba-sh, Ibaraki 21, 〒3050821, JP)
International Classes:
C08G63/60; C08J5/18; H01B3/42; H01B17/56; H01F5/06; H01F27/32; H02K3/30
Attorney, Agent or Firm:
SHIGA Masatake et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)