According to one embodiment, a method of making an abrasive article is disclosed. The method can comprise: providing a surface; disposing magnetizable abrasive particles on the surface; and varying a magnetic field relative to the magnetizable abrasive particles to impart a non-random orientation and/or alignment to the magnetizable abrasive particles relative to the surface.

Abrasive articles comprising at least one layer of fibrous nonwoven fabric, woven fabrics and combinations thereof are disclosed. The fabrics or combinations of fabrics may have a hardened adherent coating. The adherent coating may comprise a first coating and a second coating. The second coating may be formed on top of the first coating. The first coating may comprise a crosslinked binder and the second coating may comprise an abrasive particle and a lubricant.

A structured abrasive article comprises a backing having first and second opposed major surfaces and an abrasive layer securely bonded to the first major surface of the backing. The abrasive layer comprises shaped abrasive composites. Each shaped abrasive composite has four sides, a height, and abase that faces the first major surface of the backing. The shaped abrasive composites have an average height of 410 to 650 microns and an average side length at the base of 550 to 1450 microns. The shaped abrasive composites comprise non-magnetizable shaped abrasive platelets that have an average side length of 150 to 350 microns and an average thickness of 40 to 120 microns. Methods of making and using are also disclosed.

The invention provides a porous polyurethane polishing pad that includes a porous matrix having large pores that extend upward from a base surface and open to an upper surface. The large pores extend to the top polishing surface and have lower and upper sections with a vertical orientation. The lower and upper sections are offset in a horizontal direction. Middle-sized pores with a columnar shape and a vertical orientation originate adjacent the middle sections and small pores with a columnar shape and a vertical orientation originate between the middle-sized pores. The pores combine for increasing compressibility of the polishing pad and contact area of the top polishing surface during polishing.

A shaped ceramic abrasive grain, in particular based on alpha-Al.sub.2O.sub.3, includes two substantially parallel base surfaces with a polygonal base shape, said surfaces being connected by means of at least one stand surface, which is arranged substantially perpendicularly to the base surfaces, in order to position the abrasive grain on an abrasive article underlay. The abrasive grain has at least one cutting element which is arranged substantially opposite the at least one stand surface, wherein the cutting element includes at least one facet which is oriented obliquely to the base surfaces. The disclosure additionally relates to an abrasive article with abrasive grain and to a method for producing such abrasive grain.

A shaped ceramic abrasive grain, in particular based on alpha-Al.sub.2O.sub.3, includes two substantially parallel base surfaces with a polygonal base shape, said surfaces being connected by means of at least one stand surface, which is arranged substantially perpendicularly to the base surfaces, in order to position the abrasive grain on an abrasive article underlay. The abrasive grain has at least one cutting element which is arranged substantially opposite the at least one stand surface, wherein the cutting element includes at least one facet which is oriented obliquely to the base surfaces. The disclosure additionally relates to an abrasive article with abrasive grain and to a method for producing such abrasive grain.

Abrasive articles including a nonwoven fibrous substrate having a plurality of fibers, and a multiplicity of shaped abrasive particles, each shaped abrasive particle adhered to a corresponding fiber, each shaped abrasive particle having a length (L) and a width (W) determined in a direction substantially orthogonal to the length, the ratio of the length to the width defining an aspect ratio (L/W) of at least 1.1, each abrasive particle is oriented relative to its corresponding fiber, and more than 50% of the abrasive particles are oriented with respect to their corresponding fiber such that the abrasive particle length extends generally outwardly away from a surface of the corresponding fiber as determined visually using the Orientation Test. The shaped abrasive particles may have the geometric shape of a polygonal prism having two faces and at least three sides thereon. Methods of making the abrasive articles are also disclosed.

Abrasive articles including a nonwoven fibrous substrate having a plurality of fibers, and a multiplicity of shaped abrasive particles, each shaped abrasive particle adhered to a corresponding fiber, each shaped abrasive particle having a length (L) and a width (W) determined in a direction substantially orthogonal to the length, the ratio of the length to the width defining an aspect ratio (L/W) of at least 1.1, each abrasive particle is oriented relative to its corresponding fiber, and more than 50% of the abrasive particles are oriented with respect to their corresponding fiber such that the abrasive particle length extends generally outwardly away from a surface of the corresponding fiber as determined visually using the Orientation Test. The shaped abrasive particles may have the geometric shape of a polygonal prism having two faces and at least three sides thereon. Methods of making the abrasive articles are also disclosed.

A method of making a coated abrasive article, the method comprising: providing a backing, providing a curable abrasive slurry having a homogeneous dispersal of abrasive particles, applying the abrasive slurry to at least part of a major surface of the backing and forming a surface texture in the slurry, wherein the abrasive slurry is capable of maintaining the homogeneous dispersal of abrasive particles and the surface texture in an uncured state.

The present disclosure provides an abrasive article (10). The abrasive article (10) has a direction of use, a y-axis and a z-axis orthogonal to the y-axis and the direction of use. The abrasive article (10) further includes a backing (12) and shaped abrasive particles attached to the backing. About 5% to about 100% of the shaped abrasive particles (14) independently include a first side surface (16), a second side surface (18) opposed to the first side surface (16), a leading surface (20) connected to the first side surface (16) at a first edge (24) and connected to the second side surface (18) at a second edge (26), a rake angle (30) between the backing (12) and the leading surface (20) in a range of from about 10 degrees to about 110 degrees, and a z-direction rotational angle (50) between a line (52) intersecting the first edge (16) and second edge (18) and the direction of use (22) of the abrasive article (10) in a range of from about 10 degrees to about 170 degrees.