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:
Jan. 20, 2026
Filed:
Jul. 07, 2021
3m Innovative Properties Company, St. Paul, MN (US);
Junting Li, Woodbury, MN (US);
Jing Zhang, Minneapolis, MN (US);
Kui Chen-Ho, Woodbury, MN (US);
Michael J. Annen, Hudson, WI (US);
Yuyang Liu, St. Paul, MN (US);
Ann M. Gilman, Bayport, MN (US);
Kevin T. Reddy, Minneapolis, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An abrasive article comprises a porous substrate having openings extending through the porous substrate between first and second opposed major surfaces. An abrasive coating is disposed on only a portion of a first major surface of the porous substrate. The abrasive coating comprises a functional layer disposed on only a portion of a first major surface of the porous substrate, a make layer disposed on at least a portion of the functional layer opposite the porous substrate, and abrasive particles. The functional layer and the make layer independently comprise chemically crosslinked binders. The functional layer fully occludes a first portion the openings and does not fully occlude a second portion of the openings, which permits passage of abraded swarf through the abrasive article. Methods of making the abrasive article are also disclosed.