公开(公告)号：US20200156216A1

公开(公告)日：2020-05-21

申请号：US16635332

申请日：2018-07-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Lijun Zu ,  Andrew C. Anderson ,  Sarah L. Hagen ,  Jesse D. Lund ,  Qihong Nie ,  David C. Raithel ,  Kim C. Sachs, JR.

IPC: B24D11/04 ,  B24D11/06

Abstract: A surface-treating article, comprising a circular substrate (100) comprising a first major surface, an abrasive disposed on the first major surface, the abrasive having a first concentration at a first radius (110) measured from the center of the substrate, the abrasive having a second concentration not equal to the first concentration at a second radius (120) measured from the center of the substrate, wherein the first radius (110) and the second radius (120) are different lengths.