An abrasive article is provided which comprises a plurality of layers in the following order: a backing; an abrasive layer; a primer layer comprising clay particles, wherein the clay particles are agglomerated and form a layer; and a supersize coat comprising a metal salt of a long-chain fatty acid. The addition of the aforementioned primer layer can significantly reduce loading of swarf and improve both the cut and expected lifetime of the abrasive article.

Provided are buffing pads that have intertwined seams such that any hard or unyielding edges are covered and not exposed during a buffing or polishing process. A double-sided buffing pad for polishing surfaces comprises a backing plate; two fibrous buffing media with filaments of textiles extending therefrom that are affixed one media to each face of the backing plate; and a seam that is intertwined by a portion of the filaments from each media are intertwined. The filaments may be intertwined by needle-tacking, air entanglement, or hydro-entanglement.

A composite body includes starch composite particles containing starch, a plasticizer, and a crosslinking agent, and fibers, the starch composite particles being dispersed between the fibers.

A composite body includes starch composite particles containing starch, a plasticizer, and a crosslinking agent, and fibers, the starch composite particles being dispersed between the fibers.

An electrodeposited wire for a saw wire includes a core wire containing tungsten or a tungsten alloy. The electrodeposited wire for a saw wire has a tensile strength of at least 4800 MPa. The electrodeposited wire for a saw wire has a straightness of at least 400 mm per 500 mm in length.

A synthetic grindstone for performing a surface processing includes abrasive grains with an abrasive grain proportion (Vg) higher than 0 vol. % and equal to or lower than 40 vol. %, includes a nonwoven-fabric binder with a binder proportion (Vb) equal to or higher than 35 vol. % and lower than 90 vol. %. The synthetic grindstone has a porosity (Vp) higher than 10 vol. % and equal to or lower than 55 vol. %.

Abrasive particles include: 0.50 to 5.00 weight percent of seed particles for alpha-alumina formation selected from the group consisting of alpha-Fe.sub.2O.sub.3 seed particles, alpha-Al.sub.2O.sub.3 seed particles, and combinations thereof; 0.50 to 5.00 weight percent of MgO; 0.02 to 0.40 weight percent of Li.sub.2O or a molar equivalent amount of at least one alkali metal oxide selected from the group consisting of: Na.sub.2O; K.sub.2O; combinations of Na.sub.2O and Li.sub.2O; combinations of K.sub.2O and Li.sub.2O; combinations of Na.sub.2O and K.sub.2O; and combinations of Li.sub.2O, Na.sub.2O, and K.sub.2O; and 91.08 to 99.48 weight percent of Al.sub.2O.sub.3. Methods of making the abrasive particles and abrasive articles incorporating them are also disclosed.

Abrasive particles include: 0.50 to 5.00 weight percent of seed particles for alpha-alumina formation selected from the group consisting of alpha-Fe.sub.2O.sub.3 seed particles, alpha-Al.sub.2O.sub.3 seed particles, and combinations thereof; 0.50 to 5.00 weight percent of MgO; 0.02 to 0.40 weight percent of Li.sub.2O or a molar equivalent amount of at least one alkali metal oxide selected from the group consisting of: Na.sub.2O; K.sub.2O; combinations of Na.sub.2O and Li.sub.2O; combinations of K.sub.2O and Li.sub.2O; combinations of Na.sub.2O and K.sub.2O; and combinations of Li.sub.2O, Na.sub.2O, and K.sub.2O; and 91.08 to 99.48 weight percent of Al.sub.2O.sub.3. Methods of making the abrasive particles and abrasive articles incorporating them are also disclosed.

A ceramic shaped abrasive particle bounded by a base surface having a perimeter, contiguous sidewalls abutting the perimeter, and a multifaceted surface comprising contiguous facets. Each of the contiguous sidewalls abuts the perimeter, and collectively the contiguous sidewalls abut the perimeter in its entirety. Adjacent pairs of the contiguous sidewalls abut each other along respective corner edges. The multifaceted surface is spaced apart from the base surface by the contiguous sidewalls. At least one V-shaped groove extends from one of the corner edges across the multifaceted surface to one of the contiguous sidewalls that does not contact that corner edge. Less than ten percent of the multifaceted surface area is parallel to the base surface. Pluralities of the shaped abrasive particles and coated abrasive articles including them are also disclosed.

A ceramic shaped abrasive particle bounded by a base surface having a perimeter, contiguous sidewalls abutting the perimeter, and a multifaceted surface comprising contiguous facets. Each of the contiguous sidewalls abuts the perimeter, and collectively the contiguous sidewalls abut the perimeter in its entirety. Adjacent pairs of the contiguous sidewalls abut each other along respective corner edges. The multifaceted surface is spaced apart from the base surface by the contiguous sidewalls. At least one V-shaped groove extends from one of the corner edges across the multifaceted surface to one of the contiguous sidewalls that does not contact that corner edge. Less than ten percent of the multifaceted surface area is parallel to the base surface. Pluralities of the shaped abrasive particles and coated abrasive articles including them are also disclosed.