Abstract: A method is provided that includes a starting material of a first sheet having first and second major sides, with the first side of the first sheet being adapted for adherence to a substrate sheet, and providing a second porous sheet having first and second major sides. The first side of the second porous sheet is aligned against the second side of the first sheet. A molten thermoplastic material is introduced onto the second side of the second porous sheet. The method includes the step of simultaneously urging the molten thermoplastic material against the second porous sheet to force portions of the thermoplastic material to flow through the second porous sheet and into adhering contact with the second side of the first sheet, and molding a desired surface pattern on an exposed surface of the molten thermoplastic material. The molten thermoplastic material is cooled to bind the material to the first and second sheets and define a laminated assembly.

Abstract: Sheet material which incorporates selected particulate is produced using a blown film die (1); polymer containing the selected particulate is supplied to the die inlet so that, when the polymer is extruded through the die and expanded to form a blown film (6), the selected particulate is incorporated in the blown film; and the selected particulate is added to a part only of the polymer supplied to the die, so that the particulate will be present in only a certain part, for example a surface, of the blown film and of sheet material produced from the blown film.

Abstract: A method of making abrasive particles having a specified shape and abrasive articles containing abrasive particles having a specified shape.

Abstract: A hand tool which includes a cushion member of a construction which is capable of preventing the separation of a cushion member due to frictional heat and force generated during the grinding operation. The abrasive hand tool includes a tool body having a generally flat bearing surface and a thin sheet-like cushion member fixedly secured to the bearing surface of the tool body. The cushion member includes an inner layer fixedly bonded to the bearing surface of the tool body via an adhesive and an outer layer layered and bonded with the inner layer. The outer layer defines on the outer surface thereof a generally flat attachment surface for detachably holding an attachment means-backed abrasive sheet. The inner layer is made of a soft resinous foam, such as polyvinyl chloride resin, polyurethane resin or others.

Abstract: The present invention encompasses novel coated particles that are well suited for use as absorption media in chromatographic processes. The coated particles comprise a substrate, such as aluminum, silicon, titanium or zirconium oxide particles, containing polymerized silane moieties on a surface of the substrate. The silane moieties include two or three olefinic groups as well as at least on useful ligand. Methods of preparing these coated particles are also described.

Abstract: An abrasive article back up pad having a resilient, open cell polyurethane foam formed as the reaction product of a polyether polyol and an aromatic polyisocyanate, such as an aromatic polyisocyanate including methylene diphenyl diisocyanate ("MDI"), and this foam is attached to the backside of an abrasive article.

Abstract: An abrasive article, and methods of making and using same, containing an inorganic metal orthophosphate salt. The abrasive article including a coated abrasive article having a size or supersize coating layer containing an alkali metal or alkaline earth metal orthophosphate salt devoid of hydrogen. The inventive abrasive article reduces the grinding energy required while improving abrading efficiency in some cases.

Abstract: An abrasive article, for example, a coated, bonded, or nonwoven abrasive article comprising a binder, a plurality of abrasive particles, and an antiloading component.

Abstract: Abrasive slurries, abrasive articles made from the abrasive slurries, and methods for the production of the abrasive articles are disclosed. The abrasive slurries and abrasive articles made therefrom comprise at least two grades of abrasive particles (i.e., a first larger grade, and a second smaller grade). The abrasive grades have a median particle size ratio of about 2, where the median particle size ratio equals the median particle size of the larger grade of abrasive particles divided by the median particle size of any smaller grade of abrasive particles.

Abstract: The present invention relates to a wound dressing 10 that is a porous, self-adhering elastic 14 bandage which may be compressively wrapped around a wound and which is capable of absorbing fluids and wound exudate. A preferred embodiment of the wound dressing 10 is a self-adhering elastic substrate 14 which does not adhere to clothing, hair or skin having a compressive force when extended that provides a therapeutic benefit and which is flexibly attached or fixed to an absorbent layer 12.

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 low-density abrasive article comprising a nonwoven web and a multiplicity of abrasive particles which are bonded to the nonwoven web by means of an adherent binder. Abrasive particles useful in the present invention have particle sizes between about grade 4 to grade 36 and are made of an abrasive mineral having a Mohs hardness of less than about 8. The abrasive particles are preferably made of synthetically manufactured fused mullite. The low density abrasive article is particularly suitable for removing stock from a carbon steel workpiece.

Abstract: Methods for preparing abrasive articles and novel methods of making abrasive articles are presented. One method includes inserting a fibrous material adjacent an interior surface of a drum. A composition comprising an organic binder precursor material is then placed in the drum, and the drum is rotated such that centrifugal forces distribute the composition, including the organic binder precursor material, uniformly about the fibrous material. The composition is exposed to conditions sufficient to solidify the organic binder precursor material such that an endless, flexible, seamless substrate is formed having an outer surface formed adjacent the interior surface of the drum, an inner surface opposite the outer surface and the fibrous material embedded therein. Coated abrasives formed by this method, as well as other methods, are provided wherein an effective amount of a fibrous reinforcing material is engulfed within an organic polymeric binder material.

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: Strippable, primerless, radiation curable protective coatings for silver, nickel, brass and aluminum surfaces comprising(a) colloidal inorganic oxide particles of diameter less than 50 nanometers;(b) non-silyl polyethylenically unsaturated monomers and oligomers; and(c) catalytic amounts of suitable photo-initiators.The cured protective coatings are useful for shaped metal objects and for metal coated thermoplastic substrates.

Abstract: A process for polishing a workpiece. The process comprises the steps of:(a) placing a structured abrasive article bearing precisely shaped abrasive composites on at least one major surface thereof in contact with a surface of a workpiece having a surface having a scratch pattern having an initial Ra value thereon such that said composite bearing surface is in contact with said workpiece surface;(b) moving at least one of said workpiece or said structured abrasive article relative to the other in a first abrading direction, while simultaneously moving at least one of said workpiece or said structured abrasive article relative to the other in a second abrading direction not parallel to said first abrading direction such that said second abrading direction crosses said first abrading direction while contact is maintained between said composite bearing surface and said workpiece surface, whereby said initial Ra value is reduced.

Abstract: An abrasive article is provided that includes a bond system formed from a binder precursor and about 15% by weight or less of a wax-containing modifier. An abrasive article that includes the bond system exhibits an increase of workpiece surface abraded in a Woodsanding Normal Force Test as compared to an abrasive article including a bond system formed from a composition containing substantially no wax-containing modifier.

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: The present invention provides an abrasive article, particularly a cut-off wheel, having a mixture of rare earth oxide modified abrasive grains and alpha alumina seeded or iron oxide nucleated abrasive grains. Preferably, the rare earth oxide is present at a level between about 0.1 wt-% to 10 wt-% of the abrasive grain, based on a theoretical oxide basis. In one embodiment, the rare earth oxide modified abrasive grains are rods.