The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 2014
Filed:
Jun. 19, 2008
Applicants:
Shigeyoshi Masuda, Anpachi-gun, JP;
Dai Nakagawa, Anpachi-gun, JP;
Kinji Hasegawa, Anpachi-gun, JP;
Inventors:
Assignee:
Teijin Limited, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2006.01); H01G 4/224 (2006.01); B32B 27/04 (2006.01); B32B 27/32 (2006.01); H01G 4/18 (2006.01);
U.S. Cl.
CPC ...
H01G 4/18 (2013.01); C08J 5/18 (2013.01); H01G 4/224 (2013.01); C08J 2325/06 (2013.01); Y10S 428/91 (2013.01);
Abstract
The present invention is to provide an insulating film having a high breakdown voltage and excellent heat resistance and handling properties. The present invention is a biaxially oriented insulating film which contains (i) a styrene-based polymer having a syndiotactic structure and (ii) particles and which has a refractive index in the thickness direction of 1.6050 to 1.6550.