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.

Date of Patent:
Jun. 02, 2026

Filed:

Aug. 21, 2023
Applicant:

Daikin Industries, Ltd., Osaka, JP;

Inventors:

Hayato Tsuda, Osaka, JP;

Tadaharu Isaka, Osaka, JP;

Yumi Zenke, Osaka, JP;

Yukari Yamamoto, Osaka, JP;

Yasuyuki Yamaguchi, Osaka, JP;

Hiroyuki Hamada, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 55/165 (2006.01); B29C 45/00 (2006.01); B29C 45/14 (2006.01); B29L 23/00 (2006.01); F16L 58/10 (2006.01);
U.S. Cl.
CPC ...
F16L 55/1656 (2013.01); B29C 45/0001 (2013.01); B29C 45/14622 (2013.01); F16L 55/165 (2013.01); F16L 58/1009 (2013.01); B29L 2023/22 (2013.01);
Abstract

Provided is an injection molded article including a pipe body section forming a flow path of a fluid, and a flange section formed on one end or both ends of the pipe body section, wherein the maximum thickness of the flange section is 2 to 12 mm, the injection molded article contains a copolymer containing tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit, the content of the fluoro(alkyl vinyl ether) unit of the copolymer is 2.8 to 6.0% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of the copolymer is 4.0 g/10 min or higher and lower than 11.0 g/10 min, and the number of functional groups of the copolymer is 50 or less.


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