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. 10, 2023
Filed:
Aug. 24, 2020
The Regents of the University of Michigan, Ann Arbor, MI (US);
The Procter & Gamble Company, Cincinnati, OH (US);
Dimitris Ioannis Collias, Cincinnati, OH (US);
Paul Zimmerman, Ann Arbor, MI (US);
Paul Takunda Chazovachii, Ann Arbor, MI (US);
Michael Robo, Ann Arbor, MI (US);
Anne McNeil, Ann Arbor, MI (US);
Neil Marsh, Ann Arbor, MI (US);
Martin Ian James, Cincinnati, OH (US);
The Procter & Gamble Company, Cincinnati, OH (US);
Abstract
Methods for upcycling crosslinked sodium polyacrylate to pressure sensitive adhesives via (a) mechanochemical chain-shortening and esterification or (b) esterifying with high conversion with a Fischer esterification process are disclosed. Also disclosed is a pressure sensitive adhesive prepared by the disclosed methods and articles comprising the pressure sensitive adhesive, including, but not limited to, pressure sensitive tape, a bandage, a label, note pads, a decal, a stamp, an envelope, a sticker, packaging, automobile trim, and a film.