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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.:

US 12466927 B1

PDFFull Text
Date of Patent:
Nov. 11, 2025

Filed:

Feb. 27, 2024

Roll film, method for producing roll film, method for producing copper-clad laminate and method for producing printed board

Applicant:

Agc Inc., Tokyo, JP;

Inventors:

Seigo Kotera, Chiyoda-ku, JP;

Wataru Kasai, Chiyoda-ku, JP;

Junetsu Nakamura, Chiyoda-ku, JP;

Takatoshi Yaoita, Chiyoda-ku, JP;

Assignee:

AGC Inc., Tokyo, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Travis M Figg

Int. Cl.
CPC ...
C08J 5/18 (2006.01); B29C 71/02 (2006.01); B29K 27/18 (2006.01); B29K 105/00 (2006.01); C08F 214/26 (2006.01); C08J 5/12 (2006.01); H05K 1/05 (2006.01); H05K 3/02 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); B29C 71/02 (2013.01); C08F 214/265 (2013.01); C08J 5/121 (2013.01); H05K 1/056 (2013.01); H05K 3/022 (2013.01); B29C 2071/022 (2013.01); B29K 2027/18 (2013.01); B29K 2105/0085 (2013.01); C08F 2800/10 (2013.01); C08J 2327/18 (2013.01); H05K 2201/015 (2013.01);
Abstract

To provide a dielectric film which is excellent in dielectric properties and stability in the electric corrosion test and which is suitable for producing a high-precision printed board. A roll film comprising a melt-processable fluororesin as the main component and having a thickness of from 1 to 100 μm, the dimensional change rate of which is less than 1.0%, in terms of an absolute value, in each of MD and TD, when heated at 150° C. for 30 minutes and then cooled to 25° C., based on the dimension at 25° C.

Find Patent Forward Citations

Kotera, Seigo. (2025). Roll film, method for producing roll film, method for producing copper-clad laminate and method for producing printed board (U.S. Patent No. 12466927). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12466927

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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