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：US20210402354A1

公开(公告)日：2021-12-30

申请号：US17294601

申请日：2019-11-21

Applicant: 3M Innovative Properties Company

Inventor： Lucas D. McINTOSH ,  Aniruddha A. UPADHYE ,  Joel A. GETSCHEL

IPC: B01D67/00 ,  B01D71/68 ,  B01D69/02 ,  B01D69/06

Abstract: A membrane having a first outer surface having a plurality of pores in a skin layer and the plurality of pores having a closed perimeter in the skin layer. The membrane having a second outer surface and a porous supporting layer connecting the first outer surface to the second outer surface. The first outer surface of the membrane is a melt-fused skin layer from exposure to ultra-violet light.