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:
Oct. 08, 2024
Filed:
Jun. 17, 2021
International Business Machines Corporation, Armonk, NY (US);
Nathaniel H. Park, San Jose, CA (US);
Victoria A Piunova, Los Gatos, CA (US);
Dmitry Zubarev, San Jose, CA (US);
Tim Erdmann, San Jose, CA (US);
Pedro Arrechea, San Jose, CA (US);
James L. Hedrick, Pleasanton, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for synthesizing cyclic carbonate monomers using carbon dioxide (CO) is provided. The method also includes combining reagents to synthesize the cyclic carbonate monomer, the reagents including a substrate that is a 1,X-diol, where X is between 2 and 5, a base that is a tertiary amine, a promoter that is a multidentate, bis-tertiary amine base where nitrogens are separated by 2 to 4 carbon atoms, a solvent, and CO.