Abstract: The disclosure provides a process for recycling ore in the chloride process, without the build-up of silica-containing gangue in the chlorination reactor.

Abstract: This disclosure relates to a method for detecting at least one analyte in a tetrachloride sample comprising titanium, tin or silicon tetrachloride; comprising, (a) adding a mixture of water and acid, typically hydrochloric acid, to the sample under conditions effective for forming an aqueous solution of the sample; (b) introducing the aqueous solution of the sample into an inductively coupled mass spectrometer having a cell selected from the group of a reactive cell and a collision cell or both and producing an analyte ion comprising an interfering species; (c) contacting the analyte ion with a gas to produce a product which is substantially free from the interfering species; and (d) detecting and measuring at least one signal from the analyte in the solution. This disclosure further relates to a method for making an aqueous titanium, tin or silicon tetrachloride sample suitable for analysis in using inductively coupled plasma mass spectroscopy.

Abstract: A coated abrasive having a backing and an abrasive layer coated on the first major of the backing, wherein a cross-section of the abrasive layer normal to the thickness and at a center point of the thickness has a total cross-sectional area of abrasive agglomerates which is substantially the same as that at a point along the thickness which is 75% of a distance the same as that at a point and the contact side; a coated abrasive article having a bond system with a Knoop hardness number of at least 70; a coated abrasive article comprising abrasive agglomerates in the shape of a truncated four-sided pyramid; a method of making the coated abrasive article; and a method of abrading a hard workpiece using a coated abrasive article.

Abstract: The present invention relates to an abrasive article containing an abrasive coating having more than one abrasive composite layer, wherein each abrasive composite layer has undergone at least one curing process. The abrasive article of the present invention has enhanced durability as a result of the essentially complete curing of each abrasive composite layer of the abrasive coating. The invention includes the method of making an abrasive article with enhanced durability.

Abstract: A coated abrasive article comprises a backing, a first binder (i.e., a make coat) on the backing, and a plurality of abrasive particles in the first binder. The first binder precursor is an energy-curable melt-processable resin containing an epoxy resin, a polyester component, a polyfunctional acrylate component, and a curing agent for crosslinking the epoxy resin that is cured to provide a crosslinked make coating. The invention also relates to a method of producing such coated abrasive articles and a surface-treated porous cloth material.

Abstract: An abrasive article is provided which comprises a backing; and at least one three-dimensional abrasive coating comprising diamond particles dispersed within a binder bonded to a surface of the backing, the binder comprising a cured binder precursor including a urethane acrylate oligomer. The abrasive article is capable of rapid glass stock removal coupled with reducing the surface finish as indicated by reduced Ra values using an RPP test procedure.

Abstract: A method for polishing a glass workpiece is provided that includes contacting the glass workpiece having an initial Ra with an abrasive article comprising a three-dimensional abrasive coating bonded to a backing, applying a liquid at an interface between the glass workpiece and the abrasive article; moving the glass workpiece and the abrasive article relative to one another; and reducing the initial Ra to a final Ra. The abrasive articles are capable of rapid removal of glass stock from a glass test blank and reducing the surface finish using an RPP test procedure.

Abstract: A soft elastomeric disc for removal of polymeric compositions from an underlying substrate. The disc is useful for removing decorative decals, stripes, graphics, emblems, protective moldings, paint and adhesive and is made from a filled elastomeric composition. The elastomeric composition is filled with a system that combines an organic lubricant and a non-abrasive particulate.

Abstract: An adsorption medium that includes a finely divided substrate provided on at least a portion of its surface with the polymerization product of a silane that includes (a) two or three olefinic groups having the formula --(CH.sub.2).sub.m CH.dbd.CH.sub.2, where m is between 0 and 3, inclusive, and (b) at least one ligand selected to interact with a substance brought into contact with the adsorption medium to adsorb at least a portion of the substance on the surface of the adsorption medium.

Abstract: A coated article comprising a backing and a binder is disclosed. The binder precursor is an energy-curable melt-processable resin containing an epoxy resin, a polyester component, a polyfunctional acrylate component, and a curing agent for crosslinking the epoxy resin. The binder precursor is cured to provide a crosslinked coating. The invention also relates to a method of producing such coated articles and a surface-treated porous cloth material.

Abstract: Abrasive and polishing belts and discs suitable for offhand and automated article finishing comprising a lofty, nonwoven abrasive web optionally needled to a woven fabric and a polymeric layer coated on the woven fabric opposite the nonwoven layer or if no woven fabric, coated on the nonwoven layer.

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.