Abstract: An abrasive article which is made from a liquid resin composition containing no formaldehyde, which replaces the resol or urea-formaldehyde resin used as an adhesive in coated abrasives and the resol used as an impregnation resin in bonded abrasives. The liquid resin composition comprises a product that results from the oxidative cleavage of an unsaturated plant or animal oil, chosen from aldehydes, peroxides and mixtures of these compounds. The liquid resin composition can be used for the manufacture of coated and bonded abrasive articles.

Abstract: The present invention relates to a thermally curable liquid resin composition capable of being used in the manufacture of abrasive articles, and to the resulting abrasive articles.

Abstract: The invention relates to a liquid resin composition intended for manufacturing abrasives that comprises at least one novolac resin having a glass transition temperature less than or equal to 60° C., at least one reactive diluent and optionally at least one crosslinking agent. Application of the resin composition for producing abrasive articles, especially bonded abrasives and coated abrasives. It also relates to the abrasive articles comprising abrasive grains connected by such a liquid resin composition.

Abstract: A polyurethane adhesive composition, formed by combining a non-blocked urethane prepolymer and a polymeric polyol, is used for preparing a coated abrasive tool. The polyurethane adhesive composition is applied over a substrate to thereby form a polyurethane-adhesive-composition-coated substrate. Curing the polyurethane-adhesive-composition-coated substrate forms a polyurethane-adhesive-coated substrate. An abrasive material is applied over the substrate at a time selected from the group consisting of prior to, after, and simultaneously with, the application of the polyurethane adhesive composition to the substrate, to thereby form the coated abrasive tool. The coated abrasive tool preferably includes a polyurethane adhesive resin coating over the substrate, the resin coating being formed from a polymerization reaction of a non-blocked urethane prepolymer and a phenoxy resin.

Abstract: A CMP pad conditioner including a substrate having a transparency window represented by an average internal transmittance of not less than about 90% over a wavelength range extending from about 400 nm to about 500 nm along a path length extending through the substrate of not less than about 10 mm a bonding layer overlying a surface of the substrate, and abrasive grains contained within the bonding layer.

Abstract: Abrasive articles possessing a highly open (porous) structure and uniform abrasive grit distribution are disclosed. The abrasive articles are fabricated using a metal matrix (e.g., fine nickel, tin, bronze and abrasives). The open structure is controlled with a porosity scheme, including interconnected porosity (e.g., formed by leaching of dispersoid), closed porosity (e.g., induced by adding a hollow micro-spheres and/or sacrificial pore-forming additives), and/or intrinsic porosity (e.g., controlled via matrix component selection to provide desired densification). In some cases, manufacturing process temperatures for achieving near full density of metal bond with fillers and abrasives, are below the melting point of the filler used, although sacrificial fillers may be used as well. The resulting abrasive articles are useful in high performance cutting and grinding operations, such as back-grinding silicon, alumina titanium carbide, and silicon carbide wafers to very fine surface finish values.

Abstract: An abrasive article includes a backing having a major surface, an adhesion promoting layer overlying the major surface of the backing, and a make layer directly contacting the adhesion promoting layer. The adhesion promoting layer has a thickness of at least about 10 microns and is formed of a polar thermoplastic material, a cross-linkable polymer, or blends thereof.

Abstract: A method of processing an article with a coated abrasive product, including a repeat of a single marking, comprises detecting at least two characteristics of the repeat of a single marking. The repeat is placed along the length of the abrasive product at a first major surface, wherein each of the detected characteristics conveys independent information regarding the abrasive product. The method further includes comparing the information to a database. A method of acquiring information of the coated abrasive product includes detection and comparing steps.

Abstract: A coated abrasive product, comprising a first section and a second section, the first and the second sections being continuously joined together by a splice. The first section includes at least one first splice mark adjacent to the splice, wherein the first splice mark is a marking or a cluster of markings. A method of processing an article with such a coated abrasive product, and a method of acquiring information of such a coated abrasive product, respectively, includes detecting at least one characteristic of at least one first splice mark of the first section of the abrasive product, and comparing the detected characteristic to a database, wherein the detected characteristic of the first splice mark conveys approach of the splice and the end of the first section. The method of processing an article further includes providing a signal to skip the splice to thereby prevent the article being processed with splice area of the abrasive product.

Abstract: Pulp production techniques are disclosed. In one embodiment, pulpstone segments are provided, that include proppant grits in the place of some or all of the conventional abrasive typically used in pulpstone applications. The proppant or proppant-abrasive mixture can be combined into a three-dimensional matrix supported by a vitrified bond. Alternative embodiments use proppant grits in an organic bond or a metal bond or a cement bond (each of which may also include abrasive grits in addition to proppant grits). The proportion of proppant grits to abrasive grits can be varied to produce pulp of varying fiber length distribution as required by the end-user (e.g., paper mill). The greater the proppant concentration, the less cutting of the fibers by the conventional abrasive will occur, producing a greater percentage content of longer fibers. Such pulp produces higher quality paper.

Abstract: A bonded abrasive article is provided that includes abrasive grains within a bond matrix, the abrasive grains including cubic boron nitride (cBN) and the bond matrix including a polycrystalline ceramic phase. The bonded abrasive may have a Modulus of Rupture (MOR) of not less than about 40 MPa. Certain embodiments may have porosity, such as greater than about 5.0 vol %.

Abstract: A bonded abrasive article is provided which includes abrasive grains made of cubic boron nitride within a bond matrix including a silicate. The bonded abrasive further includes a reaction product at the interface between the abrasive grains and bond matrix comprising a transition metal nitride.

Abstract: Embodiments of the present invention resolve the safety and product management issues associated with conventional abrasive wheel bushings by, for example, reducing the opportunity for improperly mounting an abrasive wheel without the appropriate reducing bushing, simplifying the purchasing process, and/or reserving valuable SKU space for primary products. The abrasive wheel itself can be tailored to any number of purposes, such as grinding, cutting, and polishing. The bushing described herein can be used with any such abrasive wheels. The techniques could readily be extended to any arbor-based products that use reduction bushings or similar schemes.

Abstract: An abrasive article includes a binder and abrasive grains. The binder is formed from a formulation including a polymer component, a curing agent, and an acid bonding agent.

Abstract: Mating systems and methods for joining coated abrasives. The mating system comprises mating portions positioned at coated abrasive end portions. Complimentary mating portions may be used to join coated abrasives without glue or mechanical attachment. The mating system of the present invention may be used to join a coated abrasive to itself, or to join multiple coated abrasives to each other.

Abstract: An abrasive article includes a backing having first and second major surfaces, an abrasive layer overlying the first major surface, and a backsize layer overlying the second major surface. The backsize layer is formed from a formulation including a cationically polymerizable component, a radically polymerizable component, and at least 5% by weight of a nano-sized filler based on the weight of the formulation.

Abstract: Bonded abrasive tools, having novel porous structures that are permeable to fluid flow, comprise a relatively low volume percentage of abrasive grain and bond, and a relatively low hardness grade, but are characterized by excellent mechanical strength and grinding performance. Methods for making the abrasive tools utilizing agglomerated abrasive grain are described.

Abstract: Bonded abrasive tools, having novel porous structures that are permeable to fluid flow, comprise a relatively low volume percentage of abrasive grain and bond, and a relatively low hardness grade, but are characterized by excellent mechanical strength and grinding performance. Methods for making the abrasive tools utilizing agglomerated abrasive grain are described.