Invention Grant
- Patent Title: Coated abrasive articles and methods of making coated abrasive articles
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Application No.: US17311139Application Date: 2019-12-06
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Publication No.: US11981000B2Publication Date: 2024-05-14
- Inventor: Junting Li , Yuyang Liu , Mark A. Lukowski , Ernest L Thurber , Brian G. Koethe , Ann M. Hawkins , Geoffrey I. Wilson
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Kathleen B. Gross; Bradford B. Wright
- International Application: PCT/IB2019/060534 2019.12.06
- International Announcement: WO2020/128708A 2020.06.25
- Date entered country: 2021-06-04
- Main IPC: B24D18/00
- IPC: B24D18/00 ; B24D3/34

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.
Public/Granted literature
- US20220016747A1 COATED ABRASIVE ARTICLES AND METHODS OF MAKING COATED ABRASIVE ARTICLES Public/Granted day:2022-01-20
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