Abrasive particles having complex shapes and methods of forming same

Patent metadata

Field	Value
Publication number	US-9771506-B2
Application number	US-201715402860-A
Country	US
Kind code	B2
Filing date	Jan 10, 2017
Priority date	Jan 10, 2012
Publication date	Sep 26, 2017
Grant date	Sep 26, 2017

Abstract

An abrasive grain is disclosed and may include a body. The body may define a length (l), a height (h), and a width (w). In a particular aspect, the length is greater than or equal to the height and the height is greater than or equal to the width. Further, in a particular aspect, the body may include a primary aspect ratio defined by the ratio of length:height of at least about 2:1. The body may also include an upright orientation probability of at least about 50%.

First claim

What is claimed is:

1. A shaped abrasive grain comprising:
a body having a first end face, a second end face and a K-shaped first side face extending between the first end face and the second end face.

2. The abrasive grain of claim 1 , wherein the second end face is flat.

3. The abrasive grain of claim 2 , wherein the body comprises a third face extending between the first end face and the second end face, and wherein the third face is flat.

4. The abrasive grain of claim 2 , wherein the body comprises a fourth face extending between the first end face and the second end face, and wherein the fourth face is flat.

5. The abrasive grain of claim 2 , wherein the body comprises an opening extending into the interior of the body.

6. The abrasive grain of claim 5 , wherein the opening extends along a longitudinal axis of the body.

7. The abrasive grain of claim 5 , wherein the opening extends along a lateral axis of the body.

8. The abrasive grain of claim 5 , wherein the opening extends along a vertical axis of the body.

9. The abrasive grain of claim 5 , wherein the opening extends through the entire interior of the body.

10. The abrasive grain of claim 5 , wherein the opening has a constant cross-sectional dimension.

11. The abrasive grain of claim 1 , wherein the second end face is K shaped.

12. The abrasive grain of claim 11 , wherein the body comprises a third face extending between the first end face and the second end face, and wherein the third face is flat.

13. The abrasive grain of claim 11 , wherein the body comprises a fourth face extending between the first end face and the second end face, and wherein the fourth face is flat.

14. The abrasive grain of claim 11 , wherein the body comprises an opening extending into the interior of the body.

15. The abrasive grain of claim 14 , wherein the opening extends along a longitudinal axis of the body.

16. The abrasive grain of claim 14 , wherein the opening extends along a lateral axis of the body.

17. The abrasive grain of claim 14 , wherein the opening extends along a vertical axis of the body.

18. The abrasive grain of claim 14 , wherein the opening extends through the entire interior of the body.

19. The abrasive grain of claim 14 , wherein the opening has a constant cross-sectional dimension.

20. The abrasive grain of claim 1 , wherein the body comprises an opening extending into the interior of the body, wherein the opening has a square cylinder shape.

Assignees

• Saint-Gobain Ceram & Plastics Inc

Inventors

• Yener Doruk O
• Czerepinski Jennifer H
• Iyengar Sujatha
• Kavanaugh Michael D
• Brandes Alan J
• Arcona Christopher
• Bauer Ralph
• Boussant-Roux Yves
• Panzarella Tracy H

Classifications

• C09K3/1427

  obtained by division of a mass agglomerated by melting, at least partially, e.g. with a binder · CPC title

• C09K3/1409 Primary

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

• B01J2/26

  on endless conveyor belts · CPC title

• B23D3/00

  Planing or slotting machines cutting by relative movement of the tool and workpiece in a vertical or inclined straight line · CPC title

• C09G1/02

  containing abrasives or grinding agents {(abrasives as such C09K3/14; polishing of semi-conductors H10P52/40)} · CPC title