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:
Aug. 25, 2026
Filed:
Oct. 02, 2020
The Regents of the University of Michigan, Ann Arbor, MI (US);
Sunghyun Nam, Ann Arbor, MI (US);
Lingjie Jay Guo, Ann Arbor, MI (US);
The Regents of The University of Michigan, Ann Arbor, MI (US);
Abstract
In various aspects, a self-healing polymeric material is provided, as well as methods of making a self-healing material. The self-healing material may include a polymer network defining one or more ligands having a metal ion coordination site. The polymer network may be a poly(vinyl alcohol) (PVA) hydrogel and the metal ion may be a transition metal, like zinc. The metal ion is distributed in the polymer network and capable of interacting with the at least one metal ion coordination site via a reversible coordination bond. The polymer network is capable of self-healing a mechanical crack or cut in less than or equal to about 30 minutes at ambient conditions and in certain variations, in as little as 5-10 seconds. The self-healing polymeric materials can be used to form pressure sensitive adhesives.