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| Number | Title | Issue Date |
| 7247374 | Encapsulated active particles and methods for making and using the same The invention relates to preserving the properties of active particles through use of an encapsulant which may be removable. The encapsulant may protect the active particles against premature deactivation. If desired, the encapsulant may be removed to rejuvenate the... | 07/24/2007 |
| 7140812 | Diamond tool with a multi-tipped diamond In one embodiment, a tool used for creating grooves in a microreplication tool is described. The tool includes a mounting structure and a multi-tipped diamond mounted in the mounting structure. The different tips of the diamond may correspond to different grooves to... | 11/28/2006 |
| 7134953 | Endless abrasive belt and method of making the same Endless abrasive belt useful for polishing or otherwise abrading surfaces. ... | 11/14/2006 |
| 7077723 | Porous abrasive articles with agglomerated abrasives and method for making the agglomerated abrasives A bonded abrasive tool, having a structure permeable to fluid flow, comprises sintered agglomerates of a plurality of abrasive grains and a binding material, the binding material being characterized by a melting temperature between 500 and 1400° C., and the sintere... | 07/18/2006 |
| 7066801 | Method of manufacturing a fixed abrasive material Provided is a method for manufacturing a fixed abrasive material suitable for use in CMP planarization pads from an aqueous polymer dispersion that also includes abrasive particles that involves frothing the polymer dispersion, applying the froth to a substrate, mol... | 06/27/2006 |
| 6998155 | Woven materials with incorporated solids and processes for the production thereof The invention relates woven and knit materials with an incorporated particulate solid and to a process for producing woven materials incorporated with a particulate solid. The process comprises: entraining a particulate solid in a gaseous carrier; disposing one face... | 02/14/2006 |
| 6890244 | Polishing pads useful in chemical mechanical polishing of substrates in the presence of a slurry containing abrasive particles A polishing pad for polishing semiconductors and other planar substrates in the presence of a slurry comprising abrasive particles and a dispersive agent is disclosed. The polishing pad includes a soluble component within a polymer matrix component. The soluble comp... | 05/10/2005 |
| 6656018 | Polishing pads useful in chemical mechanical polishing of substrates in the presence of a slurry containing abrasive particles A polishing pad for polishing semiconductors and other planar substrates in the presence of a slurry comprising abrasive particles and a dispersive agent is disclosed. The polishing pad includes a soluble component, preferably fibrous, within a polymer ma... | 12/02/2003 |
| 6521005 | Surface conditioning articles and method of making same Surface conditioning articles comprising an organic matrix and water-based organic binders are reported. The water-based organic binders include a first binder and a second binder with abrasive particles dispersed and adhered within the second binder. The... | 02/18/2003 |
| 6482308 | Canvas abrasive material and grinding process A canvas abrasive material has a coating of resin and abrasive grains on a woven fabric layer, wherein the crossing places of the yarns form grinding places and free places that are distributed in a grid form over the surface of the abrasive material. A V... | 11/19/2002 |
| 6375543 | Abrasive molding, abrasive disc and polishing process using the abrasive disc An abrasive molding predominantly comprised of manganese oxide is described, which has a bulk density of 0.4 to 4.0 g/cm3, a BET specific surface area of 0.2 to 250 m2 /g and an average particle diameter of 0.005 to 10 μm. The abras... | 04/23/2002 |
| 6352567 | Nonwoven abrasive articles and methods Described are abrasive articles comprising a nonwoven; a binder layer contacting the nonwoven and at least partially filling spaces between fibers of the nonwoven; first abrasive particles adhered to the binder layer; a slurry layer comprising a second bi... | 03/05/2002 |
| 6337281 | Fixed abrasive polishing system for the manufacture of semiconductor devices, memory disks and the like A fixed abrasive, chemical-mechanical polishing system which is particularly well suited for use in the manufacture of semiconductor devices, memory disks or the like.... | 01/08/2002 |
| 6302930 | Durable nonwoven abrasive product The present invention provides an improved nonwoven abrasive product. The improved abrasive product has a porous, lofty web of multiple layers of coiled, autogenously bonded thermoplastic filaments, binder resin, abrasive granules and size resin. When por... | 10/16/2001 |
| 6261328 | Dimensionally stable abrasive discs This invention describes a method of making abrasive products such as discs with enhanced resistance to deformation as a result of the influence of moisture by laminating a coated abrasive having a fibrous backing lacking dimensional stability when expose... | 07/17/2001 |
| 6051646 | Thermosetting binder prepared with (hydroxyalkyl)urea crosslinking agent for abrasive articles Abrasive articles comprising a cured thermosetting binder and abrasive grains. The binder is prepared with a poly-functional molecule which contains at least two functional groups selected from the group consisting of carboxyl, anhydride and amine, and a ... | 04/18/2000 |
| 6039775 | Abrasive article containing a grinding aid and method of making the same An abrasive article is provided which includes a peripheral surface formed comprising a grinding aid. The grinding aid is formed from a mixture including an acid and at least one of an inorganic metal phosphate salt or an inorganic metal sulfate salt. The... | 03/21/2000 |
| 6007590 | Method of making a foraminous abrasive article A method for manufacturing a foraminous abrasive article whereby abrasive particles are concentrated in an external surface region of a foraminous substrate. The method includes the steps of: providing a foamable, hardenable, liquid resin composition and ... | 12/28/1999 |
| 5942015 | Abrasive slurries and abrasive articles comprising multiple abrasive particle grades 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... | 08/24/1999 |
| 5863305 | Method and apparatus for manufacturing abrasive articles A method for making a nonwoven a abrasive article. A preferred aspect of the method comprises the steps of: a) providing a nonwoven web having a first side and a second side, the web comprising a plurality of fibers; b) frothing a liquid make coat precurs... | 01/26/1999 |
| 5681612 | Coated abrasives and methods of preparation 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 ... | 10/28/1997 |
| 5667541 | Coatable compositions abrasive articles made therefrom, and methods of making and using same 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 consis... | 09/16/1997 |
| 5660604 | Method of making ceramic abrasive grits Ceramic abrasive grits are formed by an impregnation process that involves preparing an alumina hydrate sol, drying the sol to form a porous solid, crashing the solid to produce particles, calcining the dried particles, preparing a mixture of an additive ... | 08/26/1997 |
| 5611825 | Abrasive articles and methods of making same Film-backed and paper-backed coated abrasives and methods of making same are described using coatable urea-aldehyde binder precursor compositions including a urea-aldehyde resin and a cocatalyst, which yield more consistent quality coated abrasives. In ad... | 03/18/1997 |
| 5591239 | Nonwoven abrasive article and method of making same An open low-density abrasive article comprising in combination: (a) a lofty, open, nonwoven three-dimensional fibrous web formed of a plurality of interentangled randomly-extending polyamide staple fibers including points of intersection and contact between th... | 01/07/1997 |
| 5582625 | Curl-resistant coated abrasives A coated abrasive backing material is provided which is suitable for heavy duty grinding applications is provided by a continuous solid resin matrix having dispersed therein an essentially isotropic fibrous web. The invention also provides a coated abrasi... | 12/10/1996 |
| 5556438 | Composite abrasive products Composite abrasive wheels having shaped abrasive grits bonded to a fibrous substrate are more effective than their counterparts with irregularly shaped grain, especially at finer grit sizes.... | 09/17/1996 |
| 5551962 | Abrasive articles and method of making abrasive articles Abrasive articles are described that include a plurality of abrasive particles, a plurality of coated grinding aid particles, the coated grinding aid particles comprising grinding aid particles coated with an inert, hydrophobic, hydrocarbon-containing sub... | 09/03/1996 |
| 5551961 | Abrasive articles and methods of making same An abrasive article and methods for making such abrasive articles, including coated and nonwoven abrasive articles, comprising (a) a plurality of abrasive particles and (b) a bond system which adheres the plurality of abrasive particles together, the bond... | 09/03/1996 |
| 5551964 | Abrasive grits formed of ceramic, impregnation method of making the same and products made therewith Ceramic abrasive grits are formed by an impregnation process that involves preparing an alumina hydrate sol, drying the sol to form a porous solid, crushing the solid to produce particles, calcining the dried particles, preparing a mixture of an additive ... | 09/03/1996 |
| 5498269 | Abrasive grain having rare earth oxide therein A preferred abrasive grain comprises a sintered product of a precursor material comprising alumina, zirconia, and rare earth oxide. The preferred abrasive grain has an average hardness of at least about 21 GPa and an average toughness of at least about 4 ... | 03/12/1996 |
| 5498268 | Abrasive articles and method of making abrasive articles Abrasive articles that comprise a plurality of abrasive particles, a plurality of erodible agglomerates, and an abrasive binder are described. The erodible agglomerates comprise a plurality of grinding aid particles adhered together by a binder comprising... | 03/12/1996 |
| 5492550 | Surface treating articles and methods of making same Surface treating articles having varying degree of smear-resistance and their methods of manufacture are presented. One preferred article is characterized by an organic matrix substantially engulfed by a novel, tough, adherent elastomeric resinous binder ... | 02/20/1996 |
| 5366523 | Abrasive article containing shaped abrasive particles An abrasive article comprising a binder and abrasive grits, wherein the abrasive grits comprise abrasive particles having specified shapes. Coated abrasive articles of this invention comprise a backing having at least one layer of abrasive material adhere... | 11/22/1994 |
| 5196037 | Products for use in polishing and the like and process for producing same An improved fibrous composite structure for use in grinding, cutting and/or polishing operations, normally with abrasives. Webs of fibrous materials, preferably blends of fibers having different deniers are fed to a needling apparatus and are needled, sta... | 03/23/1993 |
| 5094670 | Method of producing polishing sheet material A method of producing an abrasive backing or a polishing sheet material which has a nonwoven fabric of a synthetic fiber having a network structure and impregnated with a polyurethane solution. The method has the steps of completely coagulating and drying... | 03/10/1992 |
| 4553982 | Coated abrasive containing epoxy binder and method of producing the same The use of an aromatic amine salt of a substituted pentafluoroantimonic acid as a curing agent for epoxy resins, and the use of the epoxy resin compositions as binders for abrasives in abrasive sheet products, are disclosed. The aromatic amines are select... | 11/19/1985 |
| 4465733 | Dispenser for toilet materials The present invention provides for the combination of a fibrous carrier which is readily degradable when wet, and foam-forming materials, that produce a protective layer of fibers and foam on the surface of the water contained in a toilet, so as to inhibi... | 08/14/1984 |
| 4227350 | Low-density abrasive product and method of making the same A low-density abrasive product formed of a uniform cross-section lofty web comprised of continuous three-dimensionally undulated inter-engaged autogenously bonded filaments of high yield strength filament-forming material impregnated with a tough adherent... | 10/14/1980 |
| 4133144 | Abrasive disc of polyurethane bonded metallic wool A soft abrasive tool is disclosed as comprising a solid molded mixture of edetermined quantities of an aluminum wool material and a catalyst setting elastomeric polyurethane binder material, the unique combination of which has been mixed, molded under pre... | 01/09/1979 |
