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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 12679797 B1

PDFFull Text
Date of Patent:
Jul. 14, 2026

Filed:

Dec. 30, 2022

Composition and method for preparing the same

Applicant:

Industrial Technology Research Institute, Hsinchu, TW;

Inventors:

Shin-Liang Kuo, Hsinchu City, TW;

Yu-Lan Tung, Hsinchu City, TW;

Wen-Sheng Chang, Zaoqiao Township, TW;

Kung-Hsun Huang, Hsinchu City, TW;

Tein-San Lee, Zhubei City, TW;

Shu-Chuan Huang, Zhubei City, TW;

Assignee:

INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsinchu, TW;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Yate′ K Cutliff

Int. Cl.
CPC ...
C07C 67/02 (2006.01); B01J 21/06 (2006.01); B01J 23/06 (2006.01); C07C 67/56 (2006.01); C07C 69/82 (2006.01); C08J 11/24 (2006.01);
U.S. Cl.
CPC ...
C07C 67/02 (2013.01); B01J 21/063 (2013.01); B01J 23/06 (2013.01); C07C 67/56 (2013.01); C07C 69/82 (2013.01); C08J 11/24 (2013.01); C08J 2367/02 (2013.01);
Abstract

A composition and a method for preparing the same are provided. The method for preparing the composition includes providing a polyethylene terephthalate waste. The polyethylene terephthalate waste is subjected to a depolymerization in the presence of a catalyst and an alcoholysis agent to obtain a mixture, wherein an oxidizing atmosphere is continuously introduced into the depolymerization. The mixture is subjected to a solid-liquid separation to obtain a solid. The solid is subjected to a purification to obtain the composition.

Find Patent Forward Citations

Kuo, Shin-Liang. (2026). Composition and method for preparing the same (U.S. Patent No. 12679797). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12679797

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

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