Abstract: The present invention is directed to a structured abrasive article that provides an enhanced cut rate and extended productive life when abrading mild steel workpieces. This abrasive article includes a backing having a surface that contains precisely shape abrasive composites. In this invention, the abrasive composites include a binder, abrasive particles, water-insoluble metal silicate particles and a coupling agent. The selection of the combination of these components or materials in an abrasive composite provides an abrasive article having an enhanced cut rate and extended productive life when used to abrade, finish or grind mild steel, particularly under wet conditions using water or water treated with rust inhibiting agents.

Abstract: An abrasive article comprising(a) a plurality of abrasive particles and(b) a bond system which adheres the plurality of abrasive particles, the bond system comprising a binder and a polysiloxane of formula (A): ##STR1## wherein R, R', R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 may be the same or different and can be an alkyl, vinyl, chloroalkyl, aminoalkyl, epoxy, fluororalkyl, chloro, fluoro, or hydroxy, and n is 500 or greater.

Abstract: The present invention provides a backing for a coated abrasive article, wherein the backing includes a tough, heat resistant, thermoplastic binder material, and an effective amount of a fibrous reinforcing material distributed throughout the thermoplastic binder material. The tough, heat resistant, thermoplastic binder material and the fibrous reinforcing material together form a hardened composition that will not substantially deform or disintegrate during use.

Abstract: A coated abrasive article comprised of a backing having a layer of grains adherently bonded thereto by a binding material, wherein the layer of grains comprises abrasive grains and nonabrasive composite grains, and the nonabrasive composite grains comprise inorganic nonabrasive particles bonded together by a binder selected from the group consisting of a metal salt of fatty acid, colloidal silica, and combinations thereof. The abrasive article has an unexpected abrading efficiency, performing equal to, or superior to, a coated abrasive article containing only abrasive grains. The invention also relates to a bonded abrasive article comprising the abrasive grains and nonabrasive composite grains adhered together.

Abstract: A coated abrasive article comprises a backing, a first binder on the backing, and a plurality of abrasive particles in the first binder. The first binder is a hot melt pressure sensitive adhesive that is energy cured to provide a crosslinked coating. The invention also relates to a method of producing such articles.

Abstract: The present invention provides a method of forming an abrasive article comprising the steps of providing an embossed carrier web having a plurality of recesses formed in the front surface thereof; filling the recesses with an abrasive composite slurry that includes a plurality of abrasive grains dispersed in a hardenable binder precursor, hardening the binder precursor to form individual abrasive composite members, laminating a backing sheet to the front surface of the embossed carrier web. The resulting article includes a plurality of precisely spaced abrasive composite members, positioned in a predetermined pattern and orientation on a backing sheet.

Abstract: A brush made from a nonwoven, thermally bonded bicomponent fiber web is described. The nonwoven brush of the invention includes a plurality of compressed annular sections assembled about a central carrier with each section made of a mat of bicomponent fibers which have been crimped and melt bonded. In a preferred embodiment, the brush will have a compacted density of between about 50 and about 250 kilograms per cubic meter. The fibers making up the compressed annular sections are preferably a combination of polyolefins (e.g. polypropylene and polyethylene) but may also include polyesters and other materials.

Abstract: A composite abrasive filament, including at least one preformed core at least partially coated with a hardened, abrasive-filled thermoplastic elastomer, exhibits increased abrading life over previously known abrasive filaments. Also disclosed are methods of making such filaments and using such filaments in article form to abrade a variety of workpieces.

Abstract: The present invention provides adhesive articles that include more than one adhesive, or if one adhesive is used, include more than one adhesive portion, where, in each portion, the extent of cure of the adhesive is varied in a predetermined manner so that each adhesive portion behaves as if it were two or more different adhesives. The adhesive articles of the present invention are typically provided as adhesive tapes, often in the form of a tape having a longitudinal dimension (down-web dimension) that far exceeds its width (cross-web dimension).

Abstract: A method for texturing magnetic recording media substrates using a structured abrasive article including a flexible backing having a major surface and an abrasive coating, the abrasive coating attached to and at least substantially covering the entire total surface area of the major surface, where the abrasive coating includes a plurality of precisely-shaped three-dimensional abrasive composites, and the composites comprise a plurality of abrasive particles dispersed in a binder, which binder provides the means of attachment of the composites to the backing.

Abstract: Precisely shaped abrasive composites are disclosed. The abrasive composites comprise from 20 to 75 percent by weight at a plurality of abrasive grits and a binder.

Abstract: A method of preparing an abrasive article, and the article produced therefrom is provided. The method includes the steps of: providing a backing having a first major surface; coating the first major surface of the backing with a tie coat precursor, wherein the tie coat precursor comprises a first radiation curable component; applying an abrasive slurry to the first major surface of the backing after coating the tie coat precursor thereon, wherein the abrasive slurry comprises a plurality of abrasive particles and a binder precursor, and further wherein the binder precursor comprises a second radiation curable component; at least partially curing the tie coat precursor; and at least partially curing the binder precursor to form an abrasive article, wherein the abrasive article comprises a backing, an abrasive layer, and a tie coat disposed between the backing and the abrasive layer. Preferably, the method provides a structured abrasive article.

Abstract: An abrasive construction for modifying a surface of a workpiece, such as a semiconductor wafer. The abrasive construction comprises: a three-dimensional, textured, fixed abrasive element; at least one resilient element generally coextensive with the fixed abrasive element; and at least one rigid element generally coextensive with and interposed between the resilient element and the fixed abrasive element, wherein the rigid element has a Young's Modulus greater than that of the resilient element.

Abstract: Precisely shaped composites and methods for making these composites are disclosed. The method of this invention comprises the steps of:(a) providing a production tool having a plurality of cavities;(b) providing a dispensing means capable of introducing a binder precursor comprising a thermosetting resin into the cavities;(c) providing a means, within a curing zone, for at least partially curing the binder precursor;(d) introducing the binder precursor into at least a portion of at least two of the cavities;(e) continuously moving the production tool through the curing zone to at least partially cure the binder precursor to provide a solidified, handleable binder;(f) removing the binder from said at least one cavity; and(g) converting the binder into precisely shaped composites.Steps (f) and (g) can be conducted simultaneously. The composites are bonded to a backing to form a coated abrasive article.

Abstract: A cellulose polymer network crosslinked with metal ions selected from the group consisting of: Al.sup.+3, Zr.sup.+4, and Ti.sup.+4, the crosslinked cellulose polymer network having incorporated therein a colloidal sol containing metal oxide-hydroxide particles wherein the metal is Al, Zr, or Ti. The inventive material is optically clear and can be used to cast microporous films, either supported or unsupported, which are useful as coatings on ink jet recording materials.

Abstract: An abrasive article having sheet-like structure including a major surface extending within an imaginary plane with a plurality of individual three-dimensional abrasive composites deployed in fixed positions thereto in an array, each of the composites has abrasive particles dispersed in a binder and has a substantially precise shape and a distal end, where another imaginary plane extends parallel to and is spaced from the first imaginary plane and intersects the lowest distal end among the composites, wherein any imaginary line drawn within the latter-mentioned imaginary plane in the direction(s) of intended use intersect at least one cross-section among the abrasive composites in the array. The invention also relates to methods for manufacturing such an abrasive article and its usage to refine a work surface.

Abstract: An abrasive article is provided having a sheet-like structure having a major surface having deployed in fixed position thereon a plurality of abrasive three-dimensional abrasive composites, each of the composites comprising abrasive particles dispersed in a binder and having a precise shape defined by a distinct and discernible boundary which includes specific dimensions, wherein the precise shapes are not all identical.

Abstract: Coatable compositions suitable for use in producing abrasive articles are presented. The inventive coatable compositions comprise a free radically polymerizable composition, abrasive particles, and a photoinitiator system. The photoinitiator system consists essentially of a compound which cleaves via .alpha.-cleavage and has a molar absorptivity in dilute methanol solution ranging from about 4 to about 400 liter/mole-cm in at least some portion of the UV/visible spectrum ranging from about 395 and about 500 nanometers. Abrasive articles incorporating cured versions of the compositions are presented, as well as methods of making and using the articles.

Abstract: A nail tool comprising a substrate having a major surface and an abrasive article attached onto the major surface of the substrate, where the abrasive article is provided having a sheet-like structure having a major surface having deployed in fixed position thereon a plurality of abrasive three-dimensional abrasive composites, each of the composites comprising abrasive particles dispersed in a binder and having a precise shape defined by a distinct and discernible boundary that includes specific dimensions, wherein the precise shapes are not all identical. The invention also relates to a method for using such a nail tool to abrade the surface of a fingernail or toenail.

Abstract: The present invention relates to a method of texturing a rigid disk for magnetic media applications, using a coated abrasive article comprising a backing having at least two regions of abrasive coating bonded to one side of the backing. The at least two regions of abrasive coating have different abrasive natures.