With Natural Resin Or Reaction Product Thereof Patents (Class 51/300)
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Publication number: 20150008048Abstract: Cutting elements earth-boring tools may include a substrate and a polycrystalline diamond table secured to the substrate. At least a portion of the polycrystalline diamond table may be formed from a plurality of core particles comprising a diamond material and having an average diameter of between 1 ?m and 500 ?m. A coating material may be adhered to and covering at least a portion of an outer surface of each core particle of the plurality of core particles, the coating material being an amine terminated group. A plurality of nanoparticles selected from the group of carbon nanotubes, nanographite, nanographene, non-diamond carbon allotropes, surface modified nanodiamond, nanoscale particles of BeO, and nanoscale particles comprising a Group VIIIA element may be adhered to the coating material.Type: ApplicationFiled: September 23, 2014Publication date: January 8, 2015Inventors: Soma Chakraborty, Oleksandr V. Kuznetsov, Gaurav Agrawal
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Patent number: 8814967Abstract: An abrasive article includes a bonded abrasive having a body made of abrasive grains contained within a composite bond material. The composite bond material can include an organic material and a metal material. The body can also include a filler material made of a superabrasive material. In an embodiment, the filler material can have an average particle size at least about 10 times less than an average particle size of the abrasive grains.Type: GrantFiled: June 29, 2012Date of Patent: August 26, 2014Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Rachana Upadhyay, Srinivasan Ramanath
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Patent number: 8741008Abstract: A chemical mechanical polishing aqueous dispersion includes (A) a graft polymer that includes an anionic functional group in a trunk polymer, and (B) abrasive grains.Type: GrantFiled: December 18, 2008Date of Patent: June 3, 2014Assignee: JSR CorporationInventors: Masayuki Motonari, Eiichirou Kunitani, Tomikazu Ueno, Takahiro Iijima, Takashi Matsuda
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Patent number: 8734551Abstract: 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.Type: GrantFiled: May 6, 2009Date of Patent: May 27, 2014Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs Technologie et Services, S.A.S.Inventor: Alix Arnaud
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Patent number: 8398462Abstract: A method of creating pores in a CMP pad in-situ includes impregnating a first material with a second material to form a CMP pad. The second material can have a resistance to frictional erosion that is less than that of the first material. The CMP pad thus has two materials with differing frictional erosion resistances. The working surface of the CMP pad can be contacted to a wafer to be polished wherein the second material can be frictionally eroded during polishing.Type: GrantFiled: February 20, 2009Date of Patent: March 19, 2013Inventor: Chien-Min Sung
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Patent number: 8328891Abstract: A method for forming a thermally stable cutting element that includes forming at least one acid infusion pathway in a polycrystalline abrasive body containing a catalyzing material to be leached; and contacting at least a portion of the at least one acid infusion pathway in the polycrystalline abrasive body with a leaching agent is disclosed.Type: GrantFiled: July 17, 2009Date of Patent: December 11, 2012Assignee: Smith International, Inc.Inventors: Youhe Zhang, Yuelin Shen
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Patent number: 8256091Abstract: A method of producing equal-sized spherical shaped beads of a wide range of materials is described. These beads are produced by forming the parent bead material into a liquid solution and by filling equal volume cells in a sheet with the liquid solution. The sheet cells establish the volumes of each of the cell mixture volumes which are then ejected from the cells by an impinging fluid. Surface tension forces acting on the ejected equal sized solution entities form them into spherical beads. The ejected beads are then subjected to a solidification environment which solidifies the spherical beads. The beads can be solid or porous or hollow and can also have bead coatings of multiple material layers.Type: GrantFiled: July 30, 2008Date of Patent: September 4, 2012Inventor: Wayne O. Duescher
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Patent number: 8105131Abstract: Methods and apparatus for removing materials from microfeature workpieces. One embodiment of a subpad in accordance with the invention comprises a matrix having a first surface configured to support a polishing medium and a second surface opposite the first surface. The subpad in this embodiment further includes a hydro-control agent in the matrix. The hydro-control agent has a hydrophobicity that inhibits liquid from absorbing into the subpad. The hydro-control agent, for example, can be coupling agents that are generally hydrophobic, surfactants that are hydrophobic, or other agents that are compatible with the matrix and at least generally hydrophobic.Type: GrantFiled: November 18, 2009Date of Patent: January 31, 2012Assignee: Micron Technology, Inc.Inventors: Rodney C. Kistler, Andrew Carswell
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Patent number: 7875335Abstract: The present invention provides a polishing pad. The polishing pad comprises a transparent part and a high molecular weight layer. The transparent part has an uneven side surface and the profile of the uneven side surface is selected from a group consisting of a serrated shape, a wavy shape and a toothed shape. The high molecular weight layer encircles the transparent part.Type: GrantFiled: April 24, 2006Date of Patent: January 25, 2011Assignee: IV Technologies Co., Ltd.Inventors: Wen-Chang Shih, Yung-Chung Chang, Min-Kuei Chu, Lung-Chen Wei
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Publication number: 20100099336Abstract: Chemical mechanical polishing pads having a polishing layer with a polishing surface adapted for polishing a substrate are provided, wherein the polishing layer has a unique integral identification feature; wherein the unique integral identification feature is non-polish active, wherein the unique integral identification feature comprises at least two visually distinct characteristics, wherein at least one of the at least two visually distinct indicia is a non-color based indicia, wherein one of the at least two visually distinct indicia is a color based indicia, and wherein the at least two visually distinct characteristics are selected to uniquely identify the chemical mechanical polishing pad as a type of chemical mechanical polishing pad selected from a plurality of types of chemical mechanical polishing pads; and, wherein the polishing layer has a polishing surface adapted for polishing the substrate. Also provided is a method of making such polishing layers and for using them to polish a substrate.Type: ApplicationFiled: October 16, 2008Publication date: April 22, 2010Inventors: Mary Jo Kulp, Darrell String
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Publication number: 20090093195Abstract: A CMP pad conditioner comprises a plurality of abrasive segments. Each abrasive segment includes a segment blank and an abrasive layer attached to the segment blank, the abrasive layer including a superhard abrasive material. A pad conditioner substrate is also provided. Each of the plurality of abrasive segments is permanently affixed to the pad conditioner substrate in an orientation that enables removal of material from a CMP pad by the abrasive layer as the pad conditioner and the CMP pad are moved relative to one another.Type: ApplicationFiled: October 22, 2008Publication date: April 9, 2009Inventor: Chien-Min Sung
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Publication number: 20080292869Abstract: Superabrasive tools and their methods of manufacture are disclosed. In one aspect, a method of improving retention of superabrasive particles held in a solidified organic material layer of an abrading tool, a portion of each of said superabrasive particles protruding out of the solidified organic material layer is provided. Such a method may include securing the plurality of superabrasive particles in the solidified organic material layer such that the organic material layer wicks up the protruding portions of the superabrasive particles. In addition to the wicking of the organic material layer around the superabrasive particles, various additional parameters may be utilized to improve retention. For example, in another aspect the plurality of superabrasive particles may be secured in an arrangement that minimizes mechanical stress impinging on protruding portions of any individual superabrasive particle when used to abrade a work piece.Type: ApplicationFiled: May 22, 2007Publication date: November 27, 2008Inventor: Chien-Min Sung
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Patent number: 7404831Abstract: An abrasive composite, a method for making the abrasive composite, and a polishing apparatus using the abrasive composite are disclosed. The abrasive composite includes a matrix and a plurality of nano-particles distributed therein. The nano-particles are made of at least nano carbon sphere particles and fullerene particles. A ratio by weight of the nano carbon sphere particles to the fullerene particles is advantageously in the range from about 1:2 to about 1:1. The fullerenes are preferably C60 fullerenes. The abrasive composite further includes an amount of diamond particles admixed in the matrix, for improving hardness of the abrasive composite so as to accelerate polishing rate. The abrasive composite is preferably in a form of pellets. The pellets have an average grain size in the range from about 10 nanometers to about 200 nanometers.Type: GrantFiled: December 13, 2005Date of Patent: July 29, 2008Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Ga-Lane Chen
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Publication number: 20080026150Abstract: This invention provides for provides for abrasive compositions and methods of use of these compositions for the preparation of surfaces for the application of various coatings such as paints, lacquers and varnishes. The abrasive compositions of the invention provide rapid cleaning and dulling of the underlying surface rendering it suitable for the application of paints or other finishes.Type: ApplicationFiled: December 1, 2004Publication date: January 31, 2008Inventors: Robert Louis Mesa, Edward W. Woodhall
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Patent number: 7077879Abstract: An object of the invention is to provide a polishing pad having the excellent slurry retaining properties and the large removal rate and a composition for a polishing pad which can form such the polishing pad. A composition for polishing pad of the invention is comprising a water-insoluble matrix material containing a crosslinked polymer and a water-soluble particle dispersed in the water-insoluble matrix material. The elongation remaining after breaking is 100% or less when a test piece comprising the water-insoluble matrix material is broken at 80° C. according to JIS K 6251. A polishing pad of the invention is that at least a part of the polishing pad comprises the composition for polishing pad.Type: GrantFiled: June 16, 2004Date of Patent: July 18, 2006Assignee: JSR CorporationInventors: Toshihiro Ogawa, Kou Hasegawa, Nobuo Kawahashi
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Patent number: 7037351Abstract: An abrasive composition comprising non-polymeric organic particles that is useful for chemical mechanical planarization (CMP), and which can widely be used in the semiconductor industry. The inventive compositions preferably comprise soft water in combination with 0.001–20 w/w % of non-polymeric organic particles, 0.1–10 w/w % of an oxidizing agent, 0.05–10 w/w % of a chelating agent, 0.01–10 w/w % of a surfactant, and 0–10 w/w % of a passivation agent at a pH in the range of 2–12, wherein said percentages are w/w (weight/weight) percentages, based on the total weight of said compositions. The abrasive compositions provide an efficient polishing rate, excellent selectivity and good surface quality when utilized as a new abrasive composition in CMP applications.Type: GrantFiled: December 15, 2003Date of Patent: May 2, 2006Assignee: Dynea Chemicals OyInventors: Yuzhuo Li, Atanu Roy Chowdhury, Kwok Tang, Guomin Bian, Krishnayya Cheemalapati
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Publication number: 20040235406Abstract: Abrasive disk sheet articles having raised islands coated with spherical abrasive agglomerates that can provide both precision flat and smooth workpiece surfaces by high speed lapping are described. These disks also provide high material removal rates and low surface pick-out of soft metallic or non-metallic materials embedded in hard workpieces. A method of producing equal-sized spherical shaped composite abrasive agglomerate beads containing small diamond abrasive particles is described. These beads can be bonded directly on the flat surface of a flexible backing or bonded onto raised island surfaces.Type: ApplicationFiled: April 14, 2004Publication date: November 25, 2004Inventor: Wayne O. Duescher
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Publication number: 20030233792Abstract: Foamed thermoplastic polymeric mechanical planarization polishing pads (“MP pads”) made with supercritical fluids are presented. A supercritical fluid foaming agent is dissolved in a thermoplastic polymer. A rapid change in the solubility and volume of the supercritical fluid foaming agent in the thermoplastic polymer results in foaming of the thermoplastic polymer. Foamed thermoplastic polymeric MP pads are advantageously both significantly and uniformly porous.Type: ApplicationFiled: June 24, 2002Publication date: December 25, 2003Inventor: Stephen J. Kramer
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Patent number: 6641629Abstract: A coating composition for forming abrasion-resistant, high clarity coatings is described. It has been found that a macrocrystalline or single crystal mineral abrasive can be added at high levels, about 5 to about 80 percent by weight, to art-recognized film-forming resin compositions for producing coatings exhibiting exceptional abrasion resistance and clarity. Such a coating composition is useful for application to surfaces including wood, vinyl, tile, rubber modified cement, marble, metal, plastic, and laminated surfaces.Type: GrantFiled: August 20, 2002Date of Patent: November 4, 2003Inventors: Eugen Safta, Frank Bor-Her Chen, Harvey Richard Forrest, Gregory David Muselman
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Publication number: 20030150169Abstract: The invention provides a method of making an embossed abrasive article comprising providing a sheet-like foam backing having a first surface and an opposite second surface; providing an abrasive coating comprising abrasive particles and binder over said first surface to provide an abrasive article; and applying under pressure a patterned embossing tool having an embossing surface including at least a pattern of raised areas to the abrasive coating of the abrasive article to provide an embossed pattern at least including depressed areas corresponding to the raised areas of the embossing surface in said abrasive coating and said foam backing to provide an embossed abrasive article.Type: ApplicationFiled: December 28, 2001Publication date: August 14, 2003Applicant: 3M Innovative Properties CompanyInventor: Michael J. Annen
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Publication number: 20030032371Abstract: A method for chemical mechanical polishing of semiconductor substrates containing a metal layer requiring removal and metal interconnects utilizing a composition containing engineered copolymer molecules comprising hydrophilic functional groups and relatively less hydrophilic functional groups; the engineered copolymer molecules enabling contact-mediated reactions between the polishing pad surface and the substrate surface during CMP resulting in minimal dishing of the metal interconnects in the substrate.Type: ApplicationFiled: May 18, 2001Publication date: February 13, 2003Inventors: Barry Weinstein, Tirthankar Ghosh
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Publication number: 20030017797Abstract: The present invention is directed to a method of making a three-dimensional fixed abrasive article, and a three dimensional fixed abrasive made thereby. The method comprises providing an abrasive composition comprising a plurality of abrasive particles and a binder precursor. The binder precursor comprises a polymerizable material consisting essentially of an ethylenically unsaturated material having one or more terminal functional groups of the same type of reactive functionality, a photoinitiator, and a thermal initiator. The abrasive composition is then applied onto a backing. The method then comprises at least partially curing the binder precursor by activating the photoinitiator, and further curing the binder precursor by activating the thermal initiator to provide a three-dimensional fixed abrasive.Type: ApplicationFiled: March 28, 2001Publication date: January 23, 2003Inventors: Philip E. Kendall, Soon C. Park, Wesley J. Bruxvoort, Scott R. Culler, Jerry W. Williams
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Patent number: 6500220Abstract: A vitreous bonded abrasive article, more particularly a grinding wheel, having improved grinding performance is provided wherein the open pores of the abrasive article contain an impregnant which comprises at least one water insoluble, sulfur bearing organic substance having at least one carbon to sulfur bond, at least about 5% by weight sulfur and a melting point of at least about 30° C. said melting point being at least 10° C. below the decomposition temperature of the substance and selected from the group consisting of substituted and unsubstituted aliphatic, aromatic, cycloaliphatic, alkenyl, alkynyl, alkylaryl, arylalkyl and substituted heterocyclic sulfur bearing organic substances or a mixture of said substances grinding aid. The impregnant is free of a medium, other than the water insoluble, sulfur bearing substance, in which the substance or a mixture of such substances is dissolved or dispersed.Type: GrantFiled: February 19, 2002Date of Patent: December 31, 2002Assignee: Cimcool Industrial Products, Inc.Inventors: Mark K. Krueger, Soo C. Yoon, Ken G. Forney, Henry Turchin, Cor A. Smits
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Patent number: 6436159Abstract: A coating composition for forming abrasion-resistant, high clarity coatings is described. It has been found that a macrocrystalline or single crystal mineral abrasive can be added at high levels, about 5 to about 80 percent by weight, to art-recognized film-forming resin compositions for producing coatings exhibiting exceptional abrasion resistance and clarity. Such a coating composition is useful for application to surfaces including wood, vinyl, tile, rubber modified cement, marble, metal, plastic, and laminated surfaces.Type: GrantFiled: December 8, 2000Date of Patent: August 20, 2002Assignee: Lilly Industries, Inc.Inventors: Eugen Safta, Frank Bor-Her Chen, Harvey Richard Forrest, Gregory David Muselman
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Publication number: 20020065032Abstract: An abrasive fine inorganic powder is dispersed in silicone rubber to confer adequate wet strength and chemical resistance.Type: ApplicationFiled: July 2, 2001Publication date: May 30, 2002Inventor: Shigeru Tominaga
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Patent number: 6120878Abstract: Abrasive articles are provided having at least one of a backing material saturated with a saturant, a barrier coat, a make coat, a size coat layer or combinations thereof wherein the saturant and layers consisting essentially of 100% solids radiation-cured resin of one or more vinyl ether monomers and/or oligomers.Type: GrantFiled: July 21, 1993Date of Patent: September 19, 2000Assignee: 3M Innovative Properties CompanyInventors: Robert A. Follensbee, Eric G. Larson
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Patent number: 5928760Abstract: An abrasive sheet has an abrasive particle layer formed on a surface of a thin flexible resin film. The abrasive sheet is produced by the steps of preparing a releasable film, forming a thin flexible resin film layer on a release agent applied surface of the releasable film and forming an abrasive particle layer on an upper surface of the resin film layer. Thereafter, the resin film having the abrasive particle layer formed thereon is removed from the releasable film, and the resin film having the abrasive particle layer formed thereon is cut into any suitable size. The abrasive sheet can provide higher polishing power during the polishing operation, but it polishes a surface while tracing or following any orange peel on the surface. Therefore, the abrasive sheet is effective for use as the polishing tool that can replace the fine compound buffing process currently utilized in the automobile repairing industry.Type: GrantFiled: September 18, 1996Date of Patent: July 27, 1999Assignee: Kovax CorporationInventors: Akira Usui, Yukio Yoshida
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Patent number: 5861055Abstract: A polishing composition is shown which includes (1) a polishing media particle; (2) a film forming binder for suspending the particle and forming a temporary film on an exposed surface of the workpiece, the temporary film being dissolvable in a subsequently applied polishing wash, whereby the polishing media particle is freed to polish the workpiece; (3) a solvent for suspending the polishing media particle in the film forming binder to facilitate forming the temporary film; and (4) a wetting agent to improve the wettability of the composition on the exposed surface of the workpiece.Type: GrantFiled: March 20, 1997Date of Patent: January 19, 1999Assignee: LSI Logic CorporationInventors: Derryl D. J. Allman, William J. Crosby, James A. Maiolo
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Patent number: 5788900Abstract: An injection molded disposable honing tool is made by an injection molding process. The tool has an elongated rectangular base from which projects an elongated section which may be somewhat smaller. The elongated section terminates in a working face. The entire tool may incorporate abrasive therein homogeneously or simply the elongated section which terminates in the working face. A shot of a plastic melt such as nylon is formed with abrasive mixed homogeneously which is then injected into a mold. For higher cost abrasive, a two shot process may be used with one shot being abrasive free. Alternatively, an abrasive-free insert may be placed in the mold before the abrasive mix is injected. The surface of the working face may be formed to act as a working face of closely packed fingers by placing patterns in the mold surface forming the working face, or subsequently cutting the working face, or a combination of both.Type: GrantFiled: October 22, 1996Date of Patent: August 4, 1998Assignee: Jason, Inc.Inventors: R. Brown Warner, Joseph P. Gaser
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Patent number: 5651729Abstract: A grinding wheel for a grinding tool, includes a grinding wheel core; and a grinding rim which is provided on the grinding wheel core and which is composed of a plurality of grinding micro segments composed of a crushed agglomerate including at least one material selected from the group consisting of metal-bonding or ceramic-bonding materials, and at least one grit material selected from the group consisting of diamond and cubic crystalline borium nitride (CBN), which agglomerate has been one of hot-pressed or sintered without pressure after which the agglomerate has been crushed to provide the crushed agglomerate; and a resin binder for bonding the grinding micro segments together and to the grinding wheel core.Type: GrantFiled: September 30, 1994Date of Patent: July 29, 1997Assignee: Diametal AGInventor: Robert Benguerel
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Patent number: 5380390Abstract: An abrasive material is formed by coating a substrate with an adhesive, contacting he substrate with a quantity of hard, abrasive particles, then removing all particles not held by the adhesive. The remaining particles are surrounded with a sinterable or fusible material while the particles are temporarily held. The substrate can have the adhesive applied in a pattern, or covering uniformly and masked, to cause particles to adhere in certain areas to achieve a desired pattern. While the particles are held on the substrate, physical force can be applied to orient the particles uniformly; then, a powder can be applied, or the substrate can be applied to a preform. Subsequent treatment with heat and/or pressure will complete the abrasive material.Type: GrantFiled: May 25, 1993Date of Patent: January 10, 1995Assignee: Ultimate Abrasive Systems, Inc.Inventor: Naum N. Tselesin
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Patent number: 4618349Abstract: A grinding wheel comprising abrasive grains each of which is coated with a conductive material and a non-conductive binder interposed among said abrasive grains. The amount of said conductive material ranges from 30 to 80% by weight based on said abrasive grains. The abrasive grains coated with said conductive material is contained in said grindstone in an amount ranging from 33 to 64% by volume. A method of producing said grinding wheel is also proposed. The method comprises preparing a mixture of said coated abrasive grains and said non-conductive binder, filling the mixture into a mold and molding said mixture by applying a pressure while maintaining said mixture at a constant temperature.Type: GrantFiled: May 9, 1983Date of Patent: October 21, 1986Assignees: Tokyo Shibaura Denki Kabushiki Kaisha, Osaka Kongo Seito Co., Ltd.Inventors: Masahiro Hashimoto, Hideo Tani
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Patent number: 4475926Abstract: A resinoid bonded abrasive article in which the resinoid bond includes 5-80% by volume of an improved active filler or grinding aid. The active filler is a mixture of iron pyrites, potassium sulfate and an alkali haloferrate; the alkali haloferrate having the formula A.sub.x Fe.sub.y ++ Fe.sub.z +++ H.sub.x+2y+3z where A is an alkali metal, H is a halogen, x is a number from 1 to 10, y is a number from 0 to 1, z is a number from 0 to 1, and y and z are not zero at the same time. The fillers are present in the bond in a ratio of alkali-haloferrate-to-pyrites-to-potassium sulfate of 0.5:1:0.5.Type: GrantFiled: September 2, 1983Date of Patent: October 9, 1984Assignee: Norton CompanyInventor: Gordon E. Hickory
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Patent number: 4126428Abstract: In an improved coated abrasive, abrasive granules are bonded to a backing sheet by an isocyanurate resin. Bonding is accomplished by use of a one-part, latent, room-temperature stable isocyanate system trimerizable to polyisocyanurate. The trimerizable system comprises an aromatic isocyanate having dispersed throughout the liquid, mircocapsules containing a catalyst for isocyanurate formation. The microcapsules have a permeable shell wall essentially of partially polymerized aromatic isocyanate which encapsulates the liquid catalyst at room temperature but, on activation of the isocyanate-catalyst by a suitable force, the liquid catalyst permeates the shell wall, mixes with the liquid polyisocyanate, and cures the isocyanate to a fully cured thermoset isocyanurate resin.Type: GrantFiled: August 1, 1977Date of Patent: November 21, 1978Assignee: Minnesota Mining and Manufacturing CompanyInventor: Harold E. Rude