Buffing Composition and Method of Finishing a Surface of a Material

• US 20100248592A1
• Filed: 11/05/2008
• Published: 09/30/2010
• Est. Priority Date: 12/05/2007
• Status: Active Grant

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Katare, Rajesh K., Israelson, Ronald J.
• Granted Patent: US 8,252,076 B2
• Time in Patent Office: Days
• US Class Current: 451/28
• CPC Class Codes: C09G 1/02 containing abrasives or grinding agents abrasives as such C09K3/14; polishing of semi-conductors H01L
• CPC Class Codes: C09K 3/1463 Aqueous liquid suspensions

Abstract

A buffing composition includes an emulsion having an aqueous liquid phase and an oily liquid phase; a solubilized zirconium carboxylate; and fine abrasive particles having a Mohs hardness of at least 4. The fine abrasive particles have a particle size distribution having at least one mode with a particle size of at least 5 micrometers. A method of finishing a surface of a material using the buffing composition is also disclosed.

Claims

1-19. -19. (canceled)

20. A method of finishing a surface of a material, the method comprising steps:

(a) applying a buffing composition onto the surface of the material, wherein the buffing composition comprises;

an emulsion having an aqueous liquid phase and an oily liquid phase;

a solubilized zirconium carboxylate; and

fine abrasive particles having a Mohs hardness of at least 4, wherein the fine abrasive particles have a particle size distribution having at least one mode with a particle size of at least 5 micrometers; and

(b) buffing the surface of the material with the buffing composition.

21. The method of claim 20, further comprising after step (b):

(c) at least partially cleaning the surface of the material to remove at least a portion of the buffing composition.

22. The method of claim 20, wherein the material comprises a clearcoat or a paint.

23. The method of claim 20, wherein the material comprises an automotive clearcoat or an automotive paint.

24. The method of claim 20, wherein the buffing composition further comprises a thickener.

25. The method of claim 20, wherein the buffing composition further comprises a humectant.

26. The method of claim 20, wherein the abrasive particles have a particle size distribution having no mode with a mean particle size of greater than 20 micrometers.

27. The method of claim 20, wherein the buffing composition is essentially silicone-free.

28. The method of claim 20, wherein the buffing composition is essentially wax-free.

29. The method of claim 20, wherein the solubilized zirconium carboxylate comprises solubilized zirconium acetate.

30. The method of claim 20, wherein the solubilized zirconium carboxylate is present in an amount of from 0.26 to 1.0 percent, based on the total weight of the buffing composition.

31. A buffing composition comprising:

an emulsion having an aqueous liquid phase and an oily liquid phase;

a solubilized zirconium carboxylate; and

fine abrasive particles having a Mohs hardness of at least 4, wherein the fine abrasive particles have a particle size distribution having at least one mode with a particle size of at least 5 micrometers.

32. The buffing composition of claim 31, wherein the buffing composition further comprises a thickener.

33. The buffing composition of claim 31, wherein the buffing composition further comprises a humectant.

34. The buffing composition of claim 31, wherein the abrasive particles have a particle size distribution having no mode with a mean particle size of greater than 20 micrometers.

35. The buffing composition of claim 31, wherein the buffing composition is essentially silicone-free.

36. The buffing composition of claim 31, wherein the buffing composition is essentially wax-free.

37. The buffing composition of claim 31, wherein the solubilized zirconium carboxylate comprises solubilized zirconium acetate.

38. The buffing composition of claim 31, wherein the solubilized zirconium carboxylate is present in an amount of from 0.26 to 1.0 percent, based on the total weight of the buffing composition.