Abstract: The invention provides a float trowel blade attachment for cement floor finishers comprising a rectangular section of sheet metal having a top surface and a bottom surface and having its edges optionally bent upwardly, means for providing to the top surface a three-sided rearwardly open pocket on the back of the section adjacent the leading edge thereof adapted to partially receive a finish trowel blade of the finisher, a spring clip secured to the top surface or the pocket-forming means and extending rearwardly therefrom so as to be engageable with the finish trowel blade to retain the section thereon, and wherein said rectangular sheet metal has attached to its bottom surface using an adhesive or mechanical attachment material interlayer, a composite rigid abrasive element bonded to a resilient backing and wherein said abrasive element comprises a substrate of two or more non woven layers pads including holes for inserting grinding and polishing elements.

Abstract: The invention provides agglomerate particles, made by a process comprising: (a) forming by mixing at high speed a slurry of mineral agglomerate components in a polymerizable liquid resin carrier; (b) mixing said slurry with a non-miscible fluid to form discrete dispersed droplets; (c) exposing the discrete dispersed droplets to UVA radiation; (c) solidifying said droplets to form a multitude of solid particles; (d) isolating said solid particles and then firing said particles. The resulting size of the fired particles of the invention are estimated to be in the range from approximately 20 ?m to approximately 500 ?m.

Abstract: The invention provides a method for making agglomerate particles, said method comprising: (a) forming by mixing at high speed a slurry of mineral agglomerate components in a polymerizable liquid resin carrier; (b) mixing said slurry with a non-miscible fluid to form discrete dispersed droplets; (c) exposing the discrete dispersed droplets to UVA radiation; (c) solidifying said droplets to form a multitude of solid particles; (d) isolating said solid particles and then firing said particles. The resulting size of the fired particles of the invention are estimated to be in the range from approximately 20 ?m to approximately 500 ?m.

Abstract: The invention provides an article of manufacture useful for simultaneously maintaining, cleaning and polishing hard surfaces comprising independently a driver element (non-woven web) having a central opening and one or more equidistant or non-equidistant openings therein and polishing inserts elements disposed in said equidistant or non-equidistant openings, wherein said article upon cleaning and polishing a surface provides a consistent and improved surface smoothness and reflected image quality. The invention also provides a kit for cleaning and polishing hard surfaces comprising: (a) a driver element having a central opening and one or more equidistant or non-equidistant openings; (b) polishing inserts elements for said driver element having equidistant or non-equidistant openings; and wherein said kit provides said hard surface with a consistent and improved surface smoothness and reflected image quality.

Abstract: The invention provides an article of manufacture useful for simultaneously maintaining, cleaning and polishing hard surfaces comprising independently a driver element composite pad comprised of a top non-woven layer and one or more non woven bottom layers laminated together with an adhesive interlayer, said composite pad having a central opening extending through all the layers and one or more equidistant or non-equidistant openings on the top nonwoven layer therein and polishing inserts elements disposed in said equidistant or non-equidistant openings. The invention also provides a kit for polishing hard surfaces comprising: (a) a driver element having a central opening and one or more equidistant or non-equidistant openings; (b) polishing inserts elements for said driver element having equidistant or non-equidistant openings; and wherein said kit provides a hard surface with a consistent and improved surface smoothness and reflected image quality.

Abstract: The invention provides a float trowel blade attachment for cement floor finishers comprising a rectangular section of sheet metal having a top surface and a bottom surface and having its edges optionally bent upwardly, means for providing to the top surface a three-sided rearwardly open pocket on the back of the section adjacent the leading edge thereof adapted to partially receive a finish trowel blade of the finisher, a spring clip secured to the top surface or the pocket-forming means and extending rearwardly therefrom so as to be engageable with the finish trowel blade to retain the section thereon, and wherein said rectangular sheet metal has attached to its bottom surface using an adhesive or mechanical attachment material interlayer, a composite rigid abrasive element bonded to a resilient backing.

Abstract: A structured abrasive article comprises a structured abrasive layer adhered to a major surface of a backing, the structured abrasive layer comprising shaped abrasive composites adhered to the major surface, the shaped abrasive composites comprising milled polycrystalline ceramic abrasive particles retained in a polymeric binder, wherein the milled polycrystalline ceramic abrasive particles have a median particle size D50 of from 3 to 30 microns. In a method of finishing a stone surface, the structured abrasive layer is frictionally contacting with the stone surface; and moved relative to the stone surface under conditions sufficient to finish the stone surface.

Abstract: A nonwoven abrasive wheel comprising one or more layers of a nonwoven fiber web, a plurality of super abrasive particles having a Vickers hardness greater than 40 GPa, a polyurethane binder adhering the plurality of super abrasive particles to the nonwoven fibers and adhering the layers of the nonwoven fiber web to each other, and wherein the nonwoven abrasive wheel comprises a Flexural Modulus from 4.0 to 128.0 lb/inch of thickness per inch of displacement.

Abstract: A resin bonded grinding wheel suitable for grinding polycrystalline diamond compacts is disclosed. The resin bonded grinding wheel uses a high concentration of diamonds based on a volume percent along with a mixture of hard and soft filler particles to effectively grind the polycrystalline diamond compacts while eliminating or reducing the need to continuously dress the outer surface of the resin bonded grinding wheel.

Abstract: A nonwoven abrasive wheel comprising one or more layers of a nonwoven fiber web, a plurality of super abrasive particles having a Vickers hardness greater than 40 GPa, a polyurethane binder adhering the plurality of super abrasive particles to the nonwoven fibers and adhering the layers of the nonwoven fiber web to each other, and wherein the nonwoven abrasive wheel comprises a Flexural Modulus from 4.0 to 128.0 lb/inch of thickness per inch of displacement.

Abstract: A method of polishing transparent armor, preferably to optical clarity. The method can be used on flat or contoured armor, manually or via robotic automation. The method includes using a step-wise progression of diamond, structured abrasive articles.

Abstract: A method of polishing transparent armor, preferably to optical clarity. The method can be used on flat or contoured armor, manually or via robotic automation. The method includes using a step-wise progression of diamond, structured abrasive articles.

Abstract: An abrasive article with a backing having a first major surface and a second major surface opposed to the first major surface. A three-dimensional abrasive layer attached to the first major surface, the three-dimensional abrasive layer comprising a plurality of shaped abrasive composites spaced apart by a plurality of land areas between the shaped abrasive composites, each of the shaped abrasive composites comprising a top surface and a sidewall, and the plurality of shaped abrasive composites and the plurality of land areas both formed from abrasive particles dispersed within an organic binder. A preconditioning indicator located on the top surface of at least some of the plurality of shaped abrasive composites and a persistent indicator located on at least some of the plurality of land areas.

Abstract: A curable composition comprises epoxy resin preparable by reaction of epichlorohydrin with at least one of bisphenol A or bisphenol F, polyfunctional urethane(meth)acrylate, dicyandiamide and photoinitiator. The curable composition is useful for preparing treated backings and coated abrasive articles.

Abstract: A coated abrasive article has a backing treatment preparable by at least partially polymerizing an isotropic backing treatment precursor comprising polyepoxide, polyfunctional urethane (meth)acrylate, non-urethane polyfunctional (meth)acrylate, acidic free-radically polymerizable monomer, dicyandiamide, photoinitiator. Methods of making and using the same.

Abstract: A structured abrasive article, methods of making an abrasive article, and methods of using an abrasive article. The abrasive composites forming the abrasive article have a height of at least 500 micrometers, and the abrasive particles in the composites have an average particle size of at least 40 micrometers, in some embodiments, at least about 85 micrometers. The large topography composites, together with the large ceramic abrasive particles, provides an abrasive article that has a more consistent cut, a longer cutting life, and a more consistent surface finish than conventional make/coat abrasive articles with the same size and type of abrasive particles. Additionally, the large topography composites, together with the large ceramic abrasive particles, provide an abrasive article that has a more consistent cut, a longer cutting life, and a more consistent surface finish than structured abrasive articles having a smaller topography, even with the same abrasive particles.

Abstract: A method for making agglomerate particles from a composition comprising at least a radiation curable binder and solid particulates. The method comprises the steps of forcing the composition through a perforated substrate to form agglomerate precursor particles which then separate from the perforated substrate. Then, the particles are irradiated to form soldified, handleable agglomerate particles before being collected.

Abstract: Ceramic aggregate particles comprising a plurality of solid particulates bonded together by ceramic binding material and methods of providing a plurality of such particles having substantially uniform cross-sectional shape are provided. The ceramic aggregate particles may incorporate a high percentage of solid particulates. The ceramic binding material may closely conform to the outermost surfaces of the solid particulates contained within the ceramic aggregate particle. When abrasive particulates are employed as the solid particulates, abrasive articles can be made which provide consistent high cut rates and consistent surface finish over relatively long periods of time.

Abstract: Ceramic aggregate particles comprising a plurality of solid particulates bonded together by ceramic binding material and methods of providing a plurality of such particles having substantially uniform cross-sectional shape are provided. The ceramic aggregate particles may incorporate a high percentage of solid particulates. The ceramic binding material may closely conform to the outermost surfaces of the solid particulates contained within the ceramic aggregate particle. When abrasive particulates are employed as the solid particulates, abrasive articles can be made which provide consistent high cut rates and consistent surface finish over relatively long periods of time.

Abstract: Agglomerate abrasive grain is disclosed. The agglomerate abrasive grain can be incorporated into abrasive products such as coated abrasives, bonded abrasives, nonwoven abrasives, and abrasive brushes. A method of making agglomerate abrasive grain is also disclosed.