Abrasive article and method of grinding

Patent metadata

Field	Value
Publication number	US-11724364-B2
Application number	US-201716467156-A
Country	US
Kind code	B2
Filing date	Dec 4, 2017
Priority date	Dec 9, 2016
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

An abrasive article includes a backing, abrasive particles secured to the backing, and a size coat provided over the abrasive particles, the size coat comprises a binder resin, at least one filler material and at least one lubricant material having a melting temperature of at least about 200 degrees F. A method of grinding aluminum using such an abrasive article is also described.

First claim

What is claimed is:

1. An abrasive article comprising:
a backing;
abrasive particles secured to the backing; and
a size coat provided over the abrasive particles;
wherein the size coat comprises a binder resin, at least one filler material and at least one lubricant material having a melting temperature of at least about 200 degrees F.;
wherein:
the lubricant material comprises a Fischer-Tropsch wax that is a solid powder at room temperature, the solid powder having an average particle size of at least 1 micron and no greater than 50 microns;
the binder resin comprises a phenolic resin; and
the filler material comprises potassium aluminum fluoride (PAF);
wherein the wt % ratio of phenolic resin to the combination of the filler material and the lubricant material is at least 1:4 and no greater than 4:1.

2. An abrasive article as defined in claim 1 , further comprising a make coat layer bonding the abrasive particles to the backing.

3. An abrasive article as defined in claim 1 , wherein the size coat comprises at least about 10 wt % and no greater than about 80 wt % binder resin.

4. An abrasive article as defined in claim 3 , wherein the size coat comprises at least about 1 wt % filler material and no greater than about 75 wt % filler material.

5. An abrasive article as defined in claim 4 , wherein the size coat comprises at least about 1 wt % lubricant material and no greater than about 30 wt % lubricant material.

6. An abrasive article as defined in claim 1 , wherein the abrasive article is a coated abrasive article.

7. An abrasive article as defined in claim 1 , wherein the abrasive article is at least one of a belt, fiber disc, and a nonwoven abrasive article.

8. An abrasive article as defined in claim 1 , wherein the abrasive particles are at least one of alumina, silicon carbide and diamond.

9. An abrasive article as defined in claim 1 , wherein the filler material comprises a blend of at least two different filler materials.

10. An abrasive article as defined in claim 1 , wherein the binder resin further comprises epoxy.

11. A method of grinding aluminum, comprising the steps of providing an abrasive article as defined in claim 1 and bringing the moving abrasive article into contact with the aluminum.

Assignees

• 3M Innovative Properties Company

Inventors

• Martinez Jaime A
• Zhang Jing
• Wilson Geoffrey I
• Sommer Stacy A
• Moren Louis S

Classifications

• B24D11/02 Primary

  Backings, e.g. foils, webs, mesh fabrics · CPC title

• B24D3/004

  with special coatings · CPC title

• B24D3/28 Primary

  Resins {or natural or synthetic macromolecular compounds (B24D3/22 takes precedence)} · CPC title

• B24D3/344

  the bonding agent being organic · CPC title

• C09K3/1409

  Abrasive particles per se (preparation of diamond C01B32/25) · CPC title