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:
May. 14, 2024
Filed:
Dec. 06, 2019
3m Innovative Properties Company, St. Paul, MN (US);
Junting Li, Woodbury, MN (US);
Yuyang Liu, St. Paul, MN (US);
Mark A. Lukowski, St. Paul, MN (US);
Ernest L Thurber, Somerset, WI (US);
Brian G. Koethe, Cottage Grove, MN (US);
Ann M. Hawkins, Lake Elmo, MN (US);
Geoffrey I. Wilson, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A coated abrasive article comprises a backing having first and second opposed major surfaces. A make layer is bonded to the first major surface. Agglomerate grinding aid particles are directly bonded to the make layer. At least a portion of the agglomerate grinding aid particles comprise grinding aid particles retained in a binder, and are arranged according to an open predetermined pattern. Abrasive particles are directly bonded to the make layer in spaces between the agglomerate grinding aid particles. A size layer is directly bonded to the make layer, agglomerate grinding aid particles, and abrasive particles. A method of making a coated abrasive article, in which the agglomerate grinding aid particles are deposited onto a curable make layer precursor prior to depositing abrasive particles onto the curable make layer precursor in spaces between the agglomerate grinding aid particles is also disclosed.