Invention Grant
- Patent Title: Nonwoven abrasive articles having electrostatically-oriented abrasive particles and methods of making same
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Application No.: US16336157Application Date: 2017-09-18
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Publication No.: US11351653B2Publication Date: 2022-06-07
- Inventor: Aaron K. Nienaber , Grayce T. Huberty , Thomas J. Nelson , Ronald D. Apple , Louis S. Moren , Robinette S. Alkhas , Nathan E. Schultz , Tien T. Wu , Gerry A. Hoffdahl
- 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 Katherine M. Scholz
- International Application: PCT/US2017/052078 WO 20170918
- International Announcement: WO2018/057465 WO 20180329
- Main IPC: B24D11/00
- IPC: B24D11/00 ; B05D1/00 ; C09K3/14

Abstract:
Abrasive articles including a nonwoven fibrous substrate having a plurality of fibers, and a multiplicity of shaped abrasive particles, each shaped abrasive particle adhered to a corresponding fiber, each shaped abrasive particle having a length (L) and a width (W) determined in a direction substantially orthogonal to the length, the ratio of the length to the width defining an aspect ratio (L/W) of at least 1.1, each abrasive particle is oriented relative to its corresponding fiber, and more than 50% of the abrasive particles are oriented with respect to their corresponding fiber such that the abrasive particle length extends generally outwardly away from a surface of the corresponding fiber as determined visually using the Orientation Test. The shaped abrasive particles may have the geometric shape of a polygonal prism having two faces and at least three sides thereon. Methods of making the abrasive articles are also disclosed.
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