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.:
Date of Patent:
Sep. 22, 2026
Filed:
Jun. 30, 2022
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/38 (2006.01); C08G 65/44 (2006.01); C08G 65/46 (2006.01);
U.S. Cl.
CPC ...
C08G 65/44 (2013.01); C08G 65/38 (2013.01); C08G 65/46 (2013.01);
Abstract
A method for preparing polyphenylene oxide, the method capable of reducing energy cost by eliminating the need for a separate process of separating and purifying ortho-cresol which is produced after an alkylation reaction of phenol, and preparing polyphenylene oxide with excellent processability in excellent yields under mild oxidative coupling reaction conditions, is provided.
Quick Actions:
Choi, Gyeongshin. (2026). Method for preparing polyphenylene oxide (U.S. Patent No. 12742043). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12742043
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile