Nonwoven abrasive articles and methods
First Claim
Patent Images
1. A nonwoven abrasive article comprising:
- (a) a lofty nonwoven substrate having a first surface and an opposite second surface, the first surface and the second surface defining a plurality of peaks and valleys, wherein said peaks and said valleys are present as a rectilinear grid, the first surface and the second surface further defining a thickness, wherein the thickness varies by no more than 30% throughout the substrate; and
(b) an abrasive coating comprising a hardened binder and abrasive particles dispersed throughout the binder, the abrasive coating being present on at least a portion of the first surface.
1 Assignment
0 Petitions
Accused Products
Abstract
Nonwoven abrasive articles, particularly lofty nonwoven abrasive articles, with a textured, non-planar surface and an abrasive coating thereon. The coating may cover the entire surface or only portions of the surface. The textured surface, composed of peaks or high regions and valleys or recessed regions, provides improved cut performance over nonwoven abrasive articles having a generally planar abrading surface.
-
Citations
32 Claims
-
1. A nonwoven abrasive article comprising:
-
(a) a lofty nonwoven substrate having a first surface and an opposite second surface, the first surface and the second surface defining a plurality of peaks and valleys, wherein said peaks and said valleys are present as a rectilinear grid, the first surface and the second surface further defining a thickness, wherein the thickness varies by no more than 30% throughout the substrate; and (b) an abrasive coating comprising a hardened binder and abrasive particles dispersed throughout the binder, the abrasive coating being present on at least a portion of the first surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 22, 30)
-
-
18. A method of making a nonwoven abrasive article, the method comprising:
-
(a) providing a lofty nonwoven substrate having a first surface and an opposite second surface, the first surface and the second surface defining a plurality of peaks and valleys, wherein said peaks and said valleys are present as a rectilinear grid, the first surface and the second surface further defining a thickness, wherein the thickness varies by no more than 30% throughout the substrate; and (b) preparing an abrasive slurry comprising binder and abrasive particles; and (c) applying the abrasive slurry on at least a portion of the first surface of the lofty nonwoven substrate; and (d) curing the binder to form a hardened binder. - View Dependent Claims (19, 20, 21, 23)
-
-
24. A nonwoven abrasive article comprising:
-
(a) a lofty nonwoven substrate having a first surface and an opposite second surface, the first surface and the second surface defining a plurality of peaks and valleys, wherein said peaks and said valleys are present as a rectilinear grid, the first surface and the second surface further defining a thickness, wherein the thickness varies by no more than 30% throughout the substrate; and (b) an abrasive coating comprising a hardened make coat and abrasive particles at least partially embedded in the hardened make coat present on at least a portion of the first surface; and (c) the abrasive coating comprising a size coat over the abrasive particles. - View Dependent Claims (25, 26, 27, 28, 29)
-
-
31. A nonwoven abrasive article comprising:
-
(a) a lofty nonwoven substrate having a first surface and an opposite second surface, the first surface and the second surface defining a plurality of peaks and valleys, wherein said peaks and said valleys are present as a rectilinear grid, the first surface and the second surface further defining a thickness, wherein the thickness varies by no more than 30% throughout the substrate; and (b) an abrasive coating comprising a binder and abrasive particles dispersed throughout the binder, (he abrasive coating being present only on the peaks of the substrate.
-
-
32. A nonwoven abrasive article comprising:
-
(a) a lofty nonwoven substrate having a first surface and an opposite second surface, the first surface and the second surface defining a plurality of peaks and valleys, wherein said peaks and said valleys are present as a rectilinear grid, the first surface and the second surface further defining a thickness, wherein the thickness varies by no more than 30% throughout the;
substrate; and(b) an abrasive coating comprising a binder and abrasive particles dispersed throughout the binder, the abrasive coating being present only in the valleys of the substrate.
-
Specification