Abrasive article including shaped abrasive particles

• US 10,711,171 B2
• Filed: 06/09/2016
• Issued: 07/14/2020
• Est. Priority Date: 06/11/2015
• Status: Active Grant

• Current Assignee: Saint-Gobain Ceramics & Plastics Incorporated (Compagnie De Saint-Gobain)
• Original Assignee: Saint-Gobain Ceramics & Plastics Incorporated (Compagnie De Saint-Gobain)
• Inventors: Bauer, Ralph, Czerepinski, Jennifer H., Fraichard, Lucie, Fremy, Flavien, Jia, Jun, Josseaux, Frederic, Louapre, David F., Marlin, Samuel S., Yener, Doruk O.
• Primary Examiner(s): Dunn, Colleen P
• Assistant Examiner(s): Christie, Ross J
• Application Number:
  US15/178,121
• Publication Number:
  US 20160362589A1
• Time in Patent Office: 1,496 Days
• Field of Search: None
• CPC Class Codes: B01J 2/006 Coating of the granules without description of the process or the device by which the granules are obtained to prevent the granules sticking together B01J2/30
• CPC Class Codes: B01J 2/20 by expressing the material, e.g. through sieves and fragmenting the extruded length
• CPC Class Codes: B24D 11/00 Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
• CPC Class Codes: B24D 2203/00 Tool surfaces formed with a pattern
• CPC Class Codes: C04B 2235/3208 Calcium oxide or oxide-forming salts thereof, e.g. lime
• CPC Class Codes: C04B 35/1115 Minute sintered entities, e.g. sintered abrasive grains or shaped particles such as platelets abrasives C09K3/14
• CPC Class Codes: C09K 3/1409 Abrasive particles per se preparation of diamond C01B32/25
• CPC Class Codes: C09K 3/1436 Composite particles, e.g. coated particles

Abstract

A shaped abrasive particle including a body having a first major surface, a second major surface, and a side surface joined to the first major surface and the second major surface, and the body has at least one partial cut extending from the side surface into the interior of the body.

Claims

1. A shaped abrasive particle comprising a body having a first major surface, a second major surface, and a side surface joined to the first major surface and the second major surface, a first exterior corner and a second exterior corner, wherein at least one edge defined by the joining of the side surface with the first major surface comprises a first discrete stepped depression having a first depression and a second depression, and wherein the first discrete stepped depression is spaced away from the first exterior corner and the second exterior corner.

11. The shaped abrasive particle of claim 1, wherein the body comprises a second discrete stepped depression.

12. The shaped abrasive particle of claim 1, wherein the first discrete stepped depression comprises a first depression having a first depth (D1), a second depression surrounding the first depression and having a second depth (D2), and wherein D1 and D2 are different compared to each other.

13. The shaped abrasive particle of claim 1, wherein the first depression comprises a curved two-dimensional contour.

14. The shaped abrasive particle of claim 1, wherein the second depression comprises a curved two-dimensional contour.

2. A shaped abrasive particle comprising a body having a first major surface, a second major surface, and a side surface joined to the first major surface and the second major surface, and wherein the body comprises a first exterior corner, a second exterior corner, and a third exterior corner, wherein the first exterior corner comprises a first discrete stepped depression having a first depression and a second depression, and wherein the first depression encompasses the first exterior corner.

3. The shaped abrasive particle of claim 2, wherein the first discrete stepped depression comprises a first depression having a first depth (D1), a second depression surrounding the first depression and having a second depth (D2), and wherein D1 and D2 are different compared to each other.

4. The shaped abrasive particle of claim 3, wherein the first depression comprises a curved two-dimensional contour.

5. The shaped abrasive particle of claim 3, wherein the first depression comprises a rounded corner as viewed in cross-section.

6. The shaped abrasive particle of claim 3, wherein the second depression comprises a curved two-dimensional contour.

7. The shaped abrasive particle of claim 3, wherein the second depression comprises a rounded corner as viewed in cross-section.

8. The shaped abrasive particle of claim 3, wherein the first depression is encompassed entirely by the second depression.

9. The shaped abrasive particle of claim 2, wherein the body is coupled to a substrate as part of a fixed abrasive selected from the group consisting of a bonded abrasive article, a coated abrasive article, and a combination thereof.

10. The shaped abrasive particle of claim 2, wherein at least one side surface of the body has a partially-concave shape.