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:
Jun. 18, 2024
Filed:
Jan. 21, 2022
Applicant:
Agc Inc., Tokyo, JP;
Inventors:
Motoshi Ono, Tokyo, JP;
Kanji Arai, Tokyo, JP;
Assignee:
AGC Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/36 (2006.01); C08J 5/18 (2006.01);
U.S. Cl.
CPC ...
C08K 3/36 (2013.01); C08J 5/18 (2013.01); C08J 2327/18 (2013.01);
Abstract
A substrate with a tetrafluoroethylene polymer and an inorganic filler, wherein the proportion of the total volume of the tetrafluoroethylene polymer and the inorganic filler to the total volume of the present substrate is at least 80 vol %, and the substrate has a rate of change in dielectric loss tangent at 10 GHz before and after 72 hours of unsaturated pressure cooker test at 120° C. under 85% RH on a 127-μm thick specimen cut out from the substrate is at most 30%.