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:
Aug. 18, 2020
Filed:
Jul. 13, 2016
Daikin Industries, Ltd., Osaka-Shi, Osaka, JP;
Takashi Kanemura, Osaka, JP;
Eri Mukai, Osaka, JP;
Takeshi Hazama, Osaka, JP;
Tetsuhiro Kodani, Osaka, JP;
Nobuyuki Komatsu, Osaka, JP;
Hisako Nakamura, Osaka, JP;
Kouji Yokotani, Osaka, JP;
Mayuko Tatemichi, Osaka, JP;
Akio Higaki, Osaka, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
The present invention provides a film having excellent heat resistance and a small difference between the permittivity at low temperatures and the permittivity at high temperatures. The present invention provides a film having a relative permittivity of 8 or more at a frequency of 1 kHz at 30° C., wherein the rate of change is −8 to +8% as calculated from a relative permittivity A at a frequency of 1 kHz at 30° C. and a relative permittivity B at a frequency of 1 kHz at 150° C. according to the following formula:Rate of change(%)=()/100.