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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 12570792 B1

PDFFull Text
Date of Patent:
Mar. 10, 2026

Filed:

Dec. 28, 2022

Polyethylene furanoate, highly-viscous polyethylene furanoate manufacturing method, polyester composition, polyester bottle, polyester bottle manufacturing method, and beverage product

Applicants:

Kirin Holdings Kabushiki Kaisha, Tokyo, JP;

Mitsubishi Chemical Corporation, Tokyo, JP;

Inventors:

Takashi Sato, Tokyo, JP;

Satoshi Kato, Tokyo, JP;

Rie Shirahama, Tokyo, JP;

Takafumi Asakura, Tokyo, JP;

Masaki Nakaya, Tokyo, JP;

Yohei Yamaguchi, Tokyo, JP;

Assignees:

KIRIN HOLDINGS KABUSHIKI KAISHA, Tokyo, JP;

Mitsubishi Chemical Corporation, Tokyo, JP;

Attorney:

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

Primary Examiner:

Michael C Miggins

Int. Cl.
CPC ...
C08G 63/16 (2006.01); B29C 49/00 (2006.01); B29C 49/02 (2006.01); B29C 49/06 (2006.01); B29K 67/00 (2006.01); C08L 67/02 (2006.01);
U.S. Cl.
CPC ...
C08G 63/16 (2013.01); B29C 49/0005 (2013.01); B29C 49/06 (2013.01); C08L 67/02 (2013.01); B29C 2049/023 (2013.01); B29K 2067/003 (2013.01); C08L 2203/10 (2013.01);
Abstract

This polyethylene furanoate has an intrinsic viscosity of 0.95-1.50 dl/g. Said intrinsic viscosity is measured (the Huggins constant is defined as 0.32) at 30° C. by using an Ubbelohde viscometer, after dissolving 0.25 g of the polyethylene furanoate in 50 ml of a solvent mixture of phenol/1,1,2,2-tetrachloroethane=50/50 (weight ratio).

Find Patent Forward Citations

Sato, Takashi. (2026). Polyethylene furanoate, highly-viscous polyethylene furanoate manufacturing method, polyester composition, polyester bottle, polyester bottle manufacturing method, and beverage product (U.S. Patent No. 12570792). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12570792

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

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