Abrasive articles including an abrasive performance enhancing composition

Patent metadata

Field	Value
Publication number	US-9987728-B2
Application number	US-201715400943-A
Country	US
Kind code	B2
Filing date	Jan 6, 2017
Priority date	Jan 8, 2016
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

Abstract

The present invention relates generally to fixed abrasive articles comprising: abrasive particles; a binder composition; and an abrasive performance enhancing composition, wherein the abrasive particles are disposed on or in the binder composition, and wherein the abrasive performance enhancing composition is disposed overlying the abrasive particles or binder composition or both. The abrasive performance enhancing composition comprises a mixture comprising a lubricant and an anti-wear agent. In particular embodiments the abrasive performance enhancing composition further comprises a fixative material.

First claim

The invention claimed is:

1. A fixed abrasive article comprising:
abrasive particles;
a binder composition; and
an abrasive performance enhancing composition,
wherein the abrasive particles are disposed on or in the binder composition, and
wherein the abrasive performance enhancing composition is disposed overlying the abrasive particles or binder composition or both, and,
wherein the abrasive performance enhancing composition comprises
a mixture comprising
a lubricant,
a fixative, and
an anti-wear agent comprising an organo phosphate that includes a transition metal,

wherein the fixative comprises an organic binder, and
wherein the organophosphate comprises a dialkyl dithio phosphate.

2. The fixed abrasive article of claim 1 , wherein the mixture is dried or cured.

3. The fixed abrasive article of claim 1 , wherein the lubricant comprises a hydrocarbon material.

4. The fixed abrasive article of claim 1 , wherein the organophosphate comprises a molybdenum dithiophosphate, a molybdenum dialkyl dithiophosphate, a zinc dithiophosphate (ZDP), a zinc dialkyl dithio phosphate (ZDDP), or a combination thereof.

5. The fixed abrasive article of claim 1 , further comprising an abrasive performance enhancing additive.

6. The fixed abrasive article of claim 1 , further comprising a grinding aid.

7. The fixed abrasive article of claim 1 , wherein the lubricant comprises not less than 1 wt % and not greater than 99.9 wt % of the abrasive performance enhancing composition.

8. The fixed abrasive article of claim 1 , wherein the anti-wear agent comprises not less than 0.001 wt % and not greater than 90 wt % of the abrasive performance enhancing composition.

9. The fixed abrasive article of claim 1 , wherein the fixative comprises not less than 10 wt % and not greater than 90 wt % of the abrasive performance enhancing composition.

10. The fixed abrasive article of claim 5 , wherein the abrasive performance enhancing additive comprises not less than 0.001 wt % and not greater than 35 wt % of the abrasive performance enhancing composition.

11. The fixed abrasive article of claim 6 , wherein the grinding aid comprises not less than 1 wt % and not greater than 40 wt % of the abrasive performance enhancing composition.

12. The fixed abrasive article of claim 1 , wherein the abrasive performance enhancing composition comprises a beneficial amount of zinc, phosphorous, sulfur, calcium, or a combination thereof.

13. The fixed abrasive article of claim 1 , further comprising a backing material, wherein the abrasive particles and binder composition are disposed on the backing material.

14. The fixed abrasive article of claim 13 , wherein the abrasive performance enhancing composition is disposed as a size coat overlying the abrasive particles and the binder composition.

15. The fixed abrasive article of claim 13 , further comprising a size coat and a supersize coat, wherein the size coat is disposed overlying the abrasive particles and the binder composition, wherein the supersize coat is disposed overlying the size coat, and wherein the abrasive performance enhancing composition is disposed in the supersize coat.

16. The fixed abrasive article of claim 13 , further comprising a size coat and a supersize coat, wherein the size coat is disposed overlying the abrasive particles and the binder composition, wherein the supersize coat is disposed overlysing the size coat, and wherein the abrasive performance enhancing composition is disposed in the size coat and the supersize coat.

17. The fixed abrasive article of claim 1 , further comprising an abrasive performance enhancing additive, a grinding aid, or a combination thereof.

Assignees

• Saint Gobain Abrasives Inc
• Saint Gobain Abrasifs Sa
• Saint Gobin Abrasifs

Inventors

• Garg Ajay K
• Csillag Frank J
• Rajamohan Manikandan

Classifications

• B24D7/02 Primary

  Wheels in one piece · CPC title

• B24D3/34 Primary

  characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties · CPC title

• B24D3/346

  utilised during polishing, or grinding operation · CPC title

• B24D11/00

  Constructional features of flexible abrasive materials; Special features in the manufacture of such materials · CPC title