A support plate for a flexible tool that is to be rotated for surface fine machining by grinding or polishing has a plate body with a bottom side that is provided with a circumferentially extending circular contact surface for the flexible tool. A fixation device is arranged at the bottom side and detachably fixes the flexible tool to the contact surface. The plate body has a top side with a drive connector that is axially oriented in a direction of an axis of rotation of the support plate and frictionally connects the support plate to a drive. One or more fatigue markings are provided on or in the top side of the support plate.

A coated abrasive article (100) comprises: a backing (110) comprising polyester and having a major surface (115); a tie layer (120) directly bound to at least a portion of the major surface (115); and an abrasive layer (130) directly bound to at least a portion of the tie layer (120), the abrasive layer (130) comprising abrasive particles (160) and at least one binder resin (140). The tie layer (120) comprises an at least partially cured blend of, on a solids basis, from 50 to 99 parts by weight of at least one styrene-butadiene copolymer latex and from 1 to 50 parts by weight of at least one resorcinol-formaldehyde resin. A treated backing (110) comprising polyester having the preceding tie layer (120) directly bound thereto is also disclosed.

A coated abrasive article (100) comprises: a backing (110) comprising polyester and having a major surface (115); a tie layer (120) directly bound to at least a portion of the major surface (115); and an abrasive layer (130) directly bound to at least a portion of the tie layer (120), the abrasive layer (130) comprising abrasive particles (160) and at least one binder resin (140). The tie layer (120) comprises an at least partially cured blend of, on a solids basis, from 50 to 99 parts by weight of at least one styrene-butadiene copolymer latex and from 1 to 50 parts by weight of at least one resorcinol-formaldehyde resin. A treated backing (110) comprising polyester having the preceding tie layer (120) directly bound thereto is also disclosed.

Various embodiments disclosed relate to a shaped abrasive particle. The shaped abrasive particle includes at least four major faces and at least six edges joining the four major faces. One of the at least four major faces is a first rake face, a second of the at least four major faces is a second rake face. The first and second rake faces are predominantly joined along only one common edge. A dihedral angle between the first rake face and the second rake face is in a range of from about 71 degrees to about 170 degrees.

Various embodiments disclosed relate to a shaped abrasive particle. The shaped abrasive particle includes at least four major faces and at least six edges joining the four major faces. One of the at least four major faces is a first rake face, a second of the at least four major faces is a second rake face. The first and second rake faces are predominantly joined along only one common edge. A dihedral angle between the first rake face and the second rake face is in a range of from about 71 degrees to about 170 degrees.

Various embodiments disclosed relate to an abrasive article. The abrasive article includes a fibrous web comprising a plurality high-heat resistant fibers. The fibrous web further includes a plurality of shaped abrasive particles attached to the fibrous web.

Various embodiments disclosed relate to an abrasive article. The abrasive article includes a fibrous web comprising a plurality high-heat resistant fibers. The fibrous web further includes a plurality of shaped abrasive particles attached to the fibrous web.

A grinding tool has a main body having at least one fiber ply embedded in a binder. An abrasive layer is arranged on the main body. The at least one fiber ply is arranged in the binder in a partially movable manner. As a result, a relative movement that ensures high vibration and noise damping is achieved within the main body and within the at least one fiber ply.

Object: Providing a polishing pad that is deformable with a smaller force. Solution: A polishing pad (1) according to an aspect of the invention includes a substrate (2) made of a piece of non-woven fabric. The substrate (2) has a flat-plate shape extending in a first direction perpendicular to a thickness direction and in a second direction perpendicular to both the thickness direction and the first direction. The substrate (2) is divided into a plurality of blocks (3) arranged in the second direction and each extending in the first direction. A boundary portion (4) extending in the first direction is formed between each pair of the blocks (3), and a plurality of slits (6) are formed in the boundary portion (4). Each of the slits (6) is formed through the substrate (2) in the thickness direction and extends in first direction. The plurality of slits (6) that exist in the boundary portion (4) are spaced apart from each other in the first direction. A pair of the blocks (3) that are next to each other in the second direction are connected to each other by a connection portion (7) formed between the slits (6).

Object: Providing a polishing pad that is deformable with a smaller force. Solution: A polishing pad (1) according to an aspect of the invention includes a substrate (2) made of a piece of non-woven fabric. The substrate (2) has a flat-plate shape extending in a first direction perpendicular to a thickness direction and in a second direction perpendicular to both the thickness direction and the first direction. The substrate (2) is divided into a plurality of blocks (3) arranged in the second direction and each extending in the first direction. A boundary portion (4) extending in the first direction is formed between each pair of the blocks (3), and a plurality of slits (6) are formed in the boundary portion (4). Each of the slits (6) is formed through the substrate (2) in the thickness direction and extends in first direction. The plurality of slits (6) that exist in the boundary portion (4) are spaced apart from each other in the first direction. A pair of the blocks (3) that are next to each other in the second direction are connected to each other by a connection portion (7) formed between the slits (6).