公开(公告)号：US20230059614A1

公开(公告)日：2023-02-23

申请号：US17793863

申请日：2021-02-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ernest L. Thurber ,  Gregory P. Sorenson ,  Ilya Gorodisher ,  Thomas J. Nelson ,  Junting Li ,  Daniel M. Lentz

IPC: B24D3/28 ,  B24D3/34 ,  B24D11/00 ,  B24D18/00

Abstract: A coated abrasive article comprises a backing having first and second opposed major surfaces, a make layer disposed on at least a portion of the first major surface and bonding abrasive particles to the backing, a size layer overlaid on at least a portion of the make layer and the abrasive particles, and an optional supersize layer. At least one of the size layer or the optional supersize layer comprises an at least partially cured resole phenolic resin and an organic polymeric rheology modifier, and wherein the amount of the at least partially cured resole phenolic resin comprises from 75 to 99.99 weight percent of the combined weight of the at least partially cured resole phenolic resin and the organic polymeric rheology modifier. A method of making the coated abrasive article is also disclosed.

公开(公告)号：US11505730B2

公开(公告)日：2022-11-22

申请号：US16612507

申请日：2018-05-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Laura M. Lara Rodriguez ,  Chainika Jangu ,  Scott R. Culler ,  Negus B. Adefris ,  Gregory S. Mueller ,  Jon T. Schwartz ,  Brian G. Koethe ,  Robinette S. Alkhas ,  Ronald D. Apple ,  Ernest L. Thurber

IPC: C09K3/14 ,  B24D3/00 ,  B24D13/04 ,  B24D18/00 ,  C01F7/441

Abstract: Various embodiments disclosed relate to an abrasive article (10). The abrasive article (10 includes a backing (12) defining a major surface. The abrasive article (10) includes an abrasive layer including a plurality of tetrahedral abrasive particles (16) attached to the backing (12). The tetrahedral abrasive particles (16) include four faces joined by six edges terminating at four vertices (40, 42, 44, 46). Each one of the four faces contacts three of the four faces, and a major portion of the tetrahedral abrasive particles (16) have at least one of the vertices (40, 42, 44, 46) oriented in substantially a same direction.

公开(公告)号：US10773361B2

公开(公告)日：2020-09-15

申请号：US15735644

申请日：2016-06-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Geoffrey I. Wilson ,  Mark R. Nyberg ,  Jeffery S. Thomford ,  Ernest L. Thurber ,  Brian G. Koethe ,  Charles C. Drange ,  Robert J. Hnatyk ,  John T. Boden

IPC: B24B1/00 ,  B24D11/00 ,  B24D18/00 ,  B24D11/02 ,  B24D3/30 ,  B24D3/34 ,  B24D11/08 ,  B24D3/00 ,  C09K3/14

Abstract: Methods of making an abrasive article. Abrasive particles are loaded to a distribution tool including a plurality of walls defining a plurality of slots. Each slot is open to a lower side of the tool. The loaded particles are distributed from the distribution tool to a major face of a backing web below the lower side and moving relative to the tool. At least a majority of the particles distributed from the tool undergo an orientation sequence in which each particle first enters one of the slots. The particle then passes partially through the slot such that a first portion is beyond the lower side and in contact with the major face, and a second portion within the slot. The sequence then includes the particle remaining in simultaneous contact with one of the walls and the major face for a dwell period while the web moves relative to the tool.

公开(公告)号：US20180318983A1

公开(公告)日：2018-11-08

申请号：US15735644

申请日：2016-06-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Geoffrey I. Wilson ,  Mark R. Nyberg ,  Jeffery S. Thomford ,  Ernest L. Thurber ,  Brian G. Koethe ,  Charles C. Drange ,  Robert J. Hnatyk ,  John T. Boden

IPC: B24D11/02 ,  B24D11/08 ,  B24D11/00 ,  B24D3/34 ,  B24D3/30

CPC classification number: B24D11/02 ,  B24D3/30 ,  B24D3/346 ,  B24D11/00 ,  B24D11/005 ,  B24D11/08 ,  B24D18/00 ,  B24D18/0072 ,  B24D2203/00 ,  C09K3/1409 ,  C09K3/1436

Abstract: Methods of making an abrasive article. Abrasive particles are loaded to a distribution tool including a plurality of walls defining a plurality of slots. Each slot is open to a lower side of the tool. The loaded particles are distributed from the distribution tool to a major face of a backing web below the lower side and moving relative to the tool. At least a majority of the particles distributed from the tool undergo an orientation sequence in which each particle first enters one of the slots. The particle then passes partially through the slot such that a first portion is beyond the lower side and in contact with the major face, and a second portion within the slot. The sequence then includes the particle remaining in simultaneous contact with one of the walls and the major face for a dwell period while the web moves relative to the tool.

公开(公告)号：US09849563B2

公开(公告)日：2017-12-26

申请号：US14933479

申请日：2015-11-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ernest L. Thurber ,  Rebecca A. Putans ,  Scott R. Culler ,  John T. Boden ,  Brian G. Koethe ,  Brant A. Moegenburg ,  Thomas J. Nelson ,  Aaron K. Nienaber ,  Wayne W. Maurer ,  Ibrahim A. El-Hedok ,  Albert I. Everaerts ,  Joseph B. Eckel ,  Mahfuza B. Ali

IPC: B24D3/28 ,  B24D11/00 ,  B24D18/00 ,  B24D3/00

CPC classification number: B24D11/005 ,  B24D3/002 ,  B24D3/28 ,  B24D18/0072

Abstract: An abrasive article comprises abrasive particles adhered to a substrate by a binder material comprising an at least partially cured resole phenolic resin and an aliphatic tack modifier. The amount of resole phenolic resin comprises from 60 to 98 weight percent of the combined weight of the resole phenolic resin and the aliphatic tack modifier. A method of making the abrasive article is also disclosed.

公开(公告)号：US20230405766A1

公开(公告)日：2023-12-21

申请号：US18250294

申请日：2021-09-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Junting Li ,  Yu Yang ,  Jing Zhang ,  Michael J. Annen ,  Ernest L. Thurber ,  Eric W. Nelson ,  Mark A. Lukowski ,  Chunjie Zhang

IPC: B24D11/00 ,  B24D3/28 ,  C08L61/14 ,  B24D3/34 ,  C09K3/14

CPC classification number: B24D11/001 ,  B24D3/285 ,  C08L61/14 ,  B24D3/344 ,  C09K3/1409

Abstract: A method of making a coated abrasive article includes disposing a precursor make layer on a major surface of the backing, optionally partially curing the precursor make layer to provide a partially cured precursor make layer, disposing abrasive particles; partially embedding abrasive particles in the optionally partially cured precursor make layer; and further curing the optionally partially cured precursor make layer to form a make layer. The precursor make layer comprises components comprising: a) 50 to 97.99 percent by weight of phenol-formaldehyde resin; b) 1 to 49 percent by weight of resorcinol-formaldehyde resin; c) 1 to 49 percent by weight of at least one compound having at least one free-radically polymerizable group; and d) 0.01 to 1 percent by weight of a free-radical initiator. A size layer and/or supersize layer may be disposed over the make layer and abrasive articles. Coated abrasive articles made by the method are also disclosed.

公开(公告)号：US20230356362A1

公开(公告)日：2023-11-09

申请号：US18029501

申请日：2021-08-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ernest L. Thurber ,  Thomas J. Nelson ,  Gregory P. Sorenson ,  Junting Li ,  Daniel M. Lentz ,  Brian G. Koethe ,  Jon T. Schwartz ,  Jing Zhang ,  Ann M. Hawkins ,  Geoffrey I. Wilson ,  Blake R. Rustad ,  Gregory S. Mueller

IPC: B24D3/34 ,  B24D3/28

CPC classification number: B24D3/344 ,  B24D3/28

Abstract: A method of making a coated abrasive article comprises sequential steps: disposing a curable composition on a major surface of a backing b) adhering abrasive particles to the curable composition; c) at least partially curing the free-radically polymerizable component; and d) at least partially curing the phenolic resin component to provide an at least partially cured composition. The curable composition comprises a phenolic resin component, a free-radically polymerizable component, and an organic polymeric rheology modifier, wherein the organic polymeric rheology modifier comprises an alkali-swellable/soluble polymer, and wherein, on a solid basis, the organic polymeric rheology modifier comprises from 0.001 to 5 weight percent of the phenolic resin component, the free-radically polymerizable component, and the organic polymeric rheology modifier combined. A variant wherein step b) effectively occurs after step c) is also disclosed. Abrasive articles made according to the methods are also disclosed.

公开(公告)号：US20220016747A1

公开(公告)日：2022-01-20

申请号：US17311139

申请日：2019-12-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Junting Li ,  Yuyang Liu ,  Mark A. Lukowski ,  Ernest L. Thurber ,  Brian G. Koethe ,  Ann M. Hawkins ,  Geoffrey I. Wilson

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.

公开(公告)号：US20210387310A1

公开(公告)日：2021-12-16

申请号：US17283171

申请日：2019-10-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ernest L. Thurber ,  Yu Yang ,  Junting Li ,  Liming Song ,  Stephen M. Sanocki ,  Yuyang Liu ,  Michelle L. Conklin ,  Morgan A. Priolo ,  Amelia W. Koenig ,  Yaohua Gao

IPC: B24D3/00 ,  B24D11/02

Abstract: A coated abrasive article (100) comprises: a backing (110) comprising polyester and having a major surface (115); a tie layer (120) directly bound to at least a portion of the major surface (115); and an abrasive layer (130) directly bound to at least a portion of the tie layer (120), the abrasive layer (130) comprising abrasive particles (160) and at least one binder resin (140). The tie layer (120) comprises an at least partially cured blend of, on a solids basis, from 50 to 99 parts by weight of at least one styrene-butadiene copolymer latex and from 1 to 50 parts by weight of at least one resorcinol-formaldehyde resin. A treated backing (110) comprising polyester having the preceding tie layer (120) directly bound thereto is also disclosed.

公开(公告)号：US20210317282A1

公开(公告)日：2021-10-14

申请号：US17304653

申请日：2021-06-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Brian D. Goers ,  Mark A. Lukowski ,  Walter Flaschberger ,  Ernest L. Thurber ,  John E. Gozum

IPC: C08J9/26 ,  B24D3/10 ,  B24D3/18 ,  B24D3/32 ,  B24D18/00 ,  C08F20/00 ,  C08F122/14

Abstract: Various embodiments disclosed relate to pore inducers and porous abrasive forms made using the same. In various embodiments, the present invention provides a method of forming a porous abrasive form including heating an abrasive composition including pore inducers to form the porous abrasive form. During the heating the pore inducers in the porous abrasive form reduce in volume to form induced pores in the porous abrasive form.