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. 01, 2024
Filed:
Nov. 25, 2019
Applicants:
Qianli Chu, Grand Forks, ND (US);
Zhihan Wang, Grand Forks, ND (US);
Inventors:
Qianli Chu, Grand Forks, ND (US);
Zhihan Wang, Grand Forks, ND (US);
Assignee:
UNIVERSITY OF NORTH DAKOTA, Grand Forks, ND (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 63/78 (2006.01); C07C 51/347 (2006.01); C08J 11/12 (2006.01);
U.S. Cl.
CPC ...
C08G 63/78 (2013.01); C07C 51/347 (2013.01); C08J 11/12 (2013.01); C08J 2367/00 (2013.01);
Abstract
A polymer is made by polymerization of CBDA-4 monomers with a glycerol linker through a condensation reaction. The resulting polymer is thermally cleavable having a plurality of CBDA-4 monomers linked with the glycerol linkers, making it recyclable when heated and degraded. The resulting intermediate material can be hydrolyzed back to initial starting material for synthesizing CBDA-4 monomers.