Self-contained fibrous buffing article

Patent metadata

Field	Value
Publication number	US-9908214-B2
Application number	US-201113881240-A
Country	US
Kind code	B2
Filing date	Dec 2, 2011
Priority date	Dec 14, 2010
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

A self-contained fibrous buffing article comprising at least one layer of a fibrous nonwoven fabric comprising lyocell fiber and having a hardened adherent coating comprising a crosslinked binder, abrasive particles, and a lubricant.

First claim

What is claimed is:

1. A self-contained fibrous buffing article comprising:
a buffing article that has at least one layer of a fibrous nonwoven fabric comprising lyocell fiber; and
a pre-applied or pre-impregnated abrasive buffing composition that is a hardened adherent coating comprising a crosslinked binder, abrasive particles, and a lubricant.

2. The self-contained fibrous buffing article of claim 1 wherein an adherent slurry applied to the nonwoven fabric which forms the hardened adherent coating comprises a surfactant.

3. The self-contained fibrous buffing article of claim 2 wherein the adherent slurry applied to the nonwoven fabric which forms the hardened adherent coating comprises a wetting agent.

4. The self-contained fibrous buffing article of claim 1 wherein the fibrous nonwoven fabric comprises a basis weight from 50 grams per square meter to 500 grams per square meter.

5. The self-contained fibrous buffing article of claim 1 wherein the abrasive particles have a mean particle size of no more than 50 micrometers.

6. The self-contained fibrous buffing article of claim 1 wherein the lubricant comprises stearic acid.

7. The self-contained fibrous buffing article of claim 1 wherein the lubricant comprises mineral oil.

8. The self-contained fibrous buffing article of claim 1 wherein the lubricant comprises stearic acid and mineral oil.

9. The self-contained fibrous buffing article of claim 5 wherein the abrasive particles comprise at least one of chromium oxide, aluminum oxide, titanium dioxide, or silicon carbide.

10. The self-contained fibrous buffing article of claim 1 wherein the fibrous nonwoven fabric comprises at least 70 wt % lyocell staple fibers.

11. The self-contained fibrous buffing article of claim 1 wherein the lyocell fiber comprises lyocell staple fibers that are airlaid and needletacked to form the fabric.

12. The self-contained fibrous buffing article of claim 1 wherein the at least one layer of the fibrous nonwoven fabric has a thickness in the range of 1 to 20 mm.

13. The self-contained fibrous buffing article of claim 1 , wherein the buffing article comprises two or more layers of the fibrous nonwoven fabric.

14. The self-contained fibrous buffing article of claim 1 wherein the fibrous nonwoven fabric comprises a central opening.

15. The self-contained fibrous buffing article of claim 1 wherein a total dry add-on weight of the coating is in the range of 200 to 1000 g/m 2 .

16. The self-contained fibrous buffing article of claim 1 wherein the coating is formed from a slurry comprising separate hydrophilic and lipophilic phases.

17. The self-contained fibrous buffing article of claim 1 wherein the coating is formed from a slurry comprising 3-50 wt-% binder, 5-80 wt-% lubricant, and 10-80 wt-% abrasive particles.

Assignees

• Martinez Jaime A
• 3M Innovative Properties Co

Inventors

• Martinez Jaime A

Classifications

• B24D13/147

  comprising assemblies of felted or spongy material; comprising pads surrounded by a flexible material · CPC title

• B24D13/12 Primary

  comprising assemblies of felted or spongy material, e.g. felt, steel wool, foamed latex · CPC title

• B24D3/004 Primary

  with special coatings · CPC title