公开(公告)号：US20210260724A1

公开(公告)日：2021-08-26

申请号：US17261709

申请日：2019-07-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Amelia W. KOENIG ,  Liming SONG ,  Stephen M. SANOCKI ,  Yu YANG ,  Yaohua GAO ,  Aniruddha A. UPADHYE ,  Morgan A. PRIOLO ,  Saurabh BATRA ,  Angela S. McLEAN

IPC: B24D3/00 ,  C08J7/04 ,  C08J7/043 ,  B24D3/28

Abstract: An article (100) has a polyester film backing (110) and a primer layer (120) including a carboxylated styrene butadiene copolymer crosslinked with a polyfunctional aziridine disposed on a major surface of the polyester film backing (110). Another article includes a polyester backing (110), a primer layer (120) including a carboxylated styrene butadiene copolymer crosslinked with a polyfunctional aziridine disposed on a major surface of the polyester backing (110), and a phenolic layer (140) disposed on the primer layer (120) on a surface opposite the polyester backing (110). The phenolic layer (120) can include abrasive particles (160). Processes for making the articles are also described, as well as methods for abrading a workpiece and improving adhesion between a polyester film backing (110) and a phenolic layer (120) on the polyester backing (110).

公开(公告)号：US20210380857A1

公开(公告)日：2021-12-09

申请号：US17250983

申请日：2019-10-01

Applicant: 3M Innovative Properties Company

Inventor： Yuyang LIU ,  Chainika JANGU ,  Negus B. ADEFRIS ,  Ernest L. THURBER ,  Bradford B. WRIGHT ,  Geoffrey I. WILSON ,  Junting LI ,  Amelia W. KOENIG ,  Steven J. KEIPERT

IPC: C09K3/14

Abstract: A plurality of supported abrasive particles wherein each supported abrasive particle respectively comprises an abrasive platelet member having a major surface and having at least one crushed support member securely bonded to and proximate the major surface. Abrasive articles containing the supported abrasive particles, and methods of making supported abrasive particles are also disclosed.