A method of making a coated abrasive article comprises sequential steps: disposing a curable composition on a major surface of a backing b) adhering abrasive particles to the curable composition; c) at least partially curing the free-radically polymerizable component; and d) at least partially curing the phenolic resin component to provide an at least partially cured composition. The curable composition comprises a phenolic resin component, a free-radically polymerizable component, and an organic polymeric rheology modifier, wherein the organic polymeric rheology modifier comprises an alkali-swellable/soluble polymer, and wherein, on a solid basis, the organic polymeric rheology modifier comprises from 0.001 to 5 weight percent of the phenolic resin component, the free-radically polymerizable component, and the organic polymeric rheology modifier combined. A variant wherein step b) effectively occurs after step c) is also disclosed. Abrasive articles made according to the methods are also disclosed.

A charge-modified particle comprising the inorganic core and a shell surrounding the inorganic core, wherein the shell comprises a copolymer comprising monomeric units corresponding to free-radically polymerizable monomers, and wherein at least one of the monomeric units comprises a substituted benzotriazolylphenolate salt. Methods of making the charge-modified particle by admicellar polymerization are also disclosed.

A charge-modified particle comprising the inorganic core and a shell surrounding the inorganic core, wherein the shell comprises a copolymer comprising monomeric units corresponding to free-radically polymerizable monomers, and wherein at least one of the monomeric units comprises a substituted benzotriazolylphenolate salt. Methods of making the charge-modified particle by admicellar polymerization are also disclosed.

A plurality of abrasive particles can include a coating overlying at least a portion of a core. In an embodiment, the plurality of abrasive particles can include a sintered coating overlying the core, wherein the sintered coating can include an oxide material, and wherein more than 75% of the plurality of abrasive particles are fully covered. In another embodiment, the plurality of abrasive particles can include a sintered coating overlying the core, wherein the sintered coating can include an oxide material, and wherein more the plurality of abrasive particles can have an average coating coverage of greater than 85% of the surface of the core. In an embodiment, the plurality of abrasive particles can include an average coating thickness of not greater than 2 microns. In another embodiment, the plurality of abrasive particles can include a thickness standard deviation of the coating of not greater than 200% of the average coating thickness. In a particular embodiment, the coating can include sintered silica.

This method for manufacturing a cutting blade includes: a mixing step of adding a liquid dispersion medium to a mixed powder containing a resin powder of a thermocompression-bondable resin, abrasive grains and fibrous fillers; a compression step of cold pressing, in a forming die, the mixed powder to which the dispersion medium has been added to form an original plate of a blade main body; and a sintering step of hot pressing and sintering the original plate.

A method for electrostatically scattering an abrasive grain includes applying at least one electro-conductive material to the abrasive grain. The electro-conductive material is in the form of at least one organic compound.

A method for electrostatically scattering an abrasive grain includes applying at least one electro-conductive material to the abrasive grain. The electro-conductive material is in the form of at least one organic compound.

A compoundless buff and method of making a compoundless buff using a coating solution formulated with abrasive particles dispersed or suspended using a surfactant or suspension agent and which also contains a self-crosslinking acrylic binder emulsion that binds abrasive particles to nonwoven cloth of a buffing article when the coating solution is applied thereto forming a relatively hard abrasive-containing coating that enables the buffing article to abrasively treat a surface without having to separately apply any buffing or polishing compound. A preferred coating solution formulation further contains a lubricant emulsion that produces a lubricant and abrasive-containing coating of the buff having lubricant interspersed with binder and abrasive particles thereby reducing friction during buffing or polishing. A preferred coating solution also contains at least one surfactant to disperse the abrasive, suspension agent to keep the abrasive suspended, and buffering agent to keep the pH of the solution so it remains flowable.

An abrasive tool includes a support, on which a plurality of abrasive flaps is arranged. The abrasive flaps each have a base and abrasive material, which is attached to the base by means of a binder. To increase the useful life and total material abrasion, the abrasive flaps are reinforced by a cured filling resin. The reinforcement of the abrasive flaps reduces the cyclical deflection thereof around a zero position due to workpiece machining, thereby avoiding increased wear on the abrasive flaps.

The present invention relates to a grinding aid as well as a grinding method. Further, the present invention pertains to a titanium dioxide particle with a layer comprising a grinding aid as described herein and the use of said titanium dioxide particle in various applications.