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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 12552924 B1

PDFFull Text
Date of Patent:
Feb. 17, 2026

Filed:

Feb. 10, 2023

Fluororesin, multilayer product, and tube

Applicant:

Daikin Industries, Ltd., Osaka, JP;

Inventors:

Yuuki Kuwajima, Osaka, JP;

Yukinori Kamiya, Osaka, JP;

Assignee:

DAIKIN INDUSTRIES, LTD., Osaka, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Ramsey Zacharia

Int. Cl.
CPC ...
C08L 27/18 (2006.01); B32B 1/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); C08F 214/26 (2006.01); F16L 11/04 (2006.01);
U.S. Cl.
CPC ...
C08L 27/18 (2013.01); B32B 1/08 (2013.01); B32B 27/306 (2013.01); B32B 27/322 (2013.01); B32B 27/34 (2013.01); C08F 214/262 (2013.01); C08F 214/265 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2597/00 (2013.01); C08F 2800/10 (2013.01); F16L 11/04 (2013.01);
Abstract

A fluororesin having a tensile strength retention ratio of 50% or more, the tensile strength retention ratio being calculated by the following formula from the tensile strength of the fluororesin after a heat treatment obtained by conducting a heat treatment at 130° C. for 40,000 hours, and the tensile strength of the fluororesin before the heat treatment. Tensile strength retention ratio (%)=(tensile strength of fluororesin after heat treatment (MPa))/(tensile strength of fluororesin before heat treatment (MPa))×100.

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Kuwajima, Yuuki. (2026). Fluororesin, multilayer product, and tube (U.S. Patent No. 12552924). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12552924

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

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