An abrasive article having first and second major surfaces includes a lofty open nonwoven fiber web comprising entangled fibers. The fiber web includes a densified outer layer comprising a portion of nonwoven fiber web proximate to the first major surface. At least a portion the entangled fibers in the densified outer layer are melt-bonded to one another. An abrasive material is coated on the densified outer layer. The abrasive material includes abrasive particles having a median particle diameter D50 in the range of 1 to 15 microns retained in a binder material. The abrasive article has a Stiffness Test force of 0.1 to 5.0 pounds (0.45 to 2.27 kg) or less. The abrasive article can be used to abrade a workpiece.

The present invention relates to an abrasive disk that is excellent in workability and stability and has a low degree of fatigue applied to workers and tools, and a process for producing the same. The abrasive disc is excellent in stability by virtue of a high adhesive strength of each layer, has high flexibility, elasticity, and adhesiveness, and is lightweight per unit area. Thus, it has a low degree of fatigue applied to workers and expensive tools. In addition, according to the above production process, the abrasive disk can be continuously mass-produced.

An abrasive agglomerate particle includes fused aluminum oxide mineral bonded in a vitreous matrix. The fused aluminum oxide mineral is present in a range from 70 percent by weight to 95 percent by weight and the vitreous matrix is present at least at five percent by weight, based on the weight of the abrasive agglomerate particle. The fused aluminum oxide mineral has an average particle size of up to 300 micrometers, and the abrasive agglomerate particle has a frusto-pyramidal shape with side walls having a taper angle in a range from 2 to 15 degrees and a dimension of at least 400 micrometers. The abrasive agglomerate particles are useful in abrasive articles. The method includes contacting the workpiece with an abrasive article and moving the workpiece and the abrasive article relative to each other to abrade the workpiece.

A laterally-stretched netting comprising a patterned abrasive layer on a first major surface thereof, and methods of making.

The present disclosure generally relates to abrasive articles for abrading a work surface such as, for example, flexible sheet-like abrasive articles, as well as methods of making and using such abrasive articles. Some embodiments of the abrasive articles include an improved, more heat resistant non-slip coating or layer.

A roughing grinding tool has a supporting body and at least one abrasive circle. The supporting body includes an abrasive grain for roughing grinding. The supporting body serves to support the at least one abrasive circle and itself for roughing grinding. The roughing grinding tool is easy to produce and robust and has a high removal capacity in conjunction with a long service life.

To uniformly bring an abrasive into contact with a workpiece and to achieve desired surface roughness. A polishing tool sliding on a narrow part of the workpiece includes an abrasive retaining layer configured to allow an abrasive to be retained on a surface, and an elastic layer that is stacked on the abrasive retaining layer and is configured to press the abrasive retained in the abrasive retaining layer against the workpiece. The elastic layer is preferably elastically deformable over a sliding stroke of the polishing tool, and a driving unit that causes the polishing tool to slide on the workpiece is preferably connected to the polishing tool.

An abrasive article having first and second major surfaces includes a lofty open nonwoven fiber web comprising entangled fibers. The fiber web includes a densified outer layer comprising a portion of nonwoven fiber web proximate to the first major surface. At least a portion the entangled fibers in the densified outer layer are melt-bonded to one another. An abrasive material is coated on the densified outer layer. The abrasive material includes abrasive particles having a median particle diameter D50 in the range of 1 to 15 microns retained in a binder material. The abrasive article has a Stiffness Test force of 0.1 to 5.0 pounds (0.45 to 2.27 kg) or less. The abrasive article can be used to abrade a workpiece.

Various embodiments disclosed relate to nonwoven abrasive article including abrasive particles. In various embodiments, the present invention provides a nonwoven abrasive article including a nonwoven web including fibers and pores between the fibers. The nonwoven abrasive article includes abrasive particles, wherein each of the pores between the fibers independently includes one or more of the abrasive particles. Each pore is independently about the same size as the one or more abrasive particles therein.

An apparatus includes a locking portion, a flexible pulling portion, a flexible body, and a plurality of barb features extending laterally from the body. The locking portion is configured to receive the pulling portion. The pulling portion is configured to engage and translate relative to the locking portion after the locking portion has received the pulling portion. The flexible body extends from the locking portion to the pulling portion. The flexible body is configured to form a loop when the pulling portion engages the locking portion. The loop is configured to decrease in size in response to pulling of the pulling portion relative to the locking portion. The barb features are configured to engage a tubular region of tissue and thereby form pleats in the tubular region of tissue.