Patents Represented by Attorney, Agent or Law Firm Scott R. Pribnow
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Patent number: 6329058Abstract: The present invention relates to metal oxide particles capable of being highly dispersed in organic materials to form transparent colloids and ceramers. The metal oxide particles of the present invention have surfaces attached to a dispersing aid and a degree of crystallinity of greater than 55 percent. The crystallite diameter of the metal oxide particles is greater than about 4 nanometers and less than about 20 nanometers. The present invention also relates to the colloids and ceramers prepared using these metal oxide particles and the methods associated with the preparation of the particles, colloids, and ceramers.Type: GrantFiled: May 27, 1999Date of Patent: December 11, 2001Assignee: 3M Innovative Properties CompanyInventors: David S. Arney, Thomas E. Wood
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Patent number: 6319108Abstract: An abrasive article is provided comprising a rigid backing having a first major surface and a second major surface; a plurality of ceramic abrasive composites each comprising a plurality of abrasive particles distributed throughout a porous ceramic matrix; and at least one metal coating which affixes the ceramic abrasive composites to at least one major surface of the backing.Type: GrantFiled: July 9, 1999Date of Patent: November 20, 2001Assignee: 3M Innovative Properties CompanyInventors: Negus B. Adefris, Carl P. Erickson
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Patent number: 6315851Abstract: The invention provides pressure-sensitive adhesive (PSA) coated articles, including tapes and transfer coatings, having microstructured surfaces and methods of making pressure-sensitive adhesive articles bearing such microstructured surfaces. The performance properties of the pressure-sensitive adhesive articles can be tailored by independently varying the microstructure and the rheological properties of the pressure-sensitive adhesive.Type: GrantFiled: January 10, 2000Date of Patent: November 13, 2001Assignee: 3M Innovative Properties CompanyInventors: Mieczyslaw H. Mazurek, Robert K. Galkiewicz, Gerald M. Benson
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Patent number: 6312484Abstract: An abrasive article is provided having a rebulkable nonwoven web and a continuous sheet-like abrasive coating bonded to the first major surface of the nonwoven web. The abrasive coating comprising a plurality of abrasive particles dispersed in a binder.Type: GrantFiled: December 22, 1998Date of Patent: November 6, 2001Assignee: 3M Innovative Properties CompanyInventors: Yeun J. Chou, John L. Erickson, Thomas L. Jones, Edward J. Woo
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Patent number: 6313335Abstract: Coatings are provided with very low surface energies provided by fluorine and/or silicone moieties. Aqueous dispersions of externally chain extended polyurethane compositions terminated by hydrolyzable and/or hydrolyzed silyl groups and containing dispersing or emulsifying groups, particularly carboxyl groups are provided. Also polyurethane dispersions which are substantially organic solvent free which cure to water and solvent resistant, tough, scratch resistant, preferably light stable polyurethane films are provided. Such films are useful as anti-fouling marine coatings. The compound RfR′fCFCOOCH2C(R)(CH2OH)2 is provided.Type: GrantFiled: November 25, 1997Date of Patent: November 6, 2001Assignee: 3M Innovative PropertiesInventors: Gary P. Roberts, Lowell W. Holland, Richard G. Hansen, Ashok Sengupta, George G. I. Moore, Miguel A. Guerra
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Patent number: 6302136Abstract: Steam valve wherein at least one of the valve plug mating surface or valve seat mating surface has a metal nitride and/or carbide coating thereon. Preferably, the metal nitride and/or carbide coating is on both mating surfaces.Type: GrantFiled: June 27, 1997Date of Patent: October 16, 2001Assignee: 3M Innovative Properties CompanyInventors: Billy Lee Weaver, Michael R. Woiak, Timothy N. Booth
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Patent number: 6299799Abstract: The present invention relates to ceramer compositions capable of being cured to form antistatic, abrasion resistant ceramers. The ceramer compositons comprise a plurality of colloidal silica particles, a binder precursor, and an electrically conductive organic polymer, for example, polythiophene. The present invention also relates to ceramer articles, for example, ceramer coatings and shaped ceramer particles made from the ceramer compositions and to methods of making the ceramer compositions and ceramer articles.Type: GrantFiled: May 27, 1999Date of Patent: October 9, 2001Assignee: 3M Innovative Properties CompanyInventors: Bradley D. Craig, Zayn Bilkadi
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Patent number: 6294259Abstract: This invention relates to a polyimide hybrid adhesive comprised of an epoxy component, an epoxy curing agent, and a polyimide oligomer of molecular weight of up to about 8,000 (Mn) having repeating units of Formula (1): The adhesives are particularly useful in applications where thermal stability and high adhesive strength are required.Type: GrantFiled: July 6, 2000Date of Patent: September 25, 2001Assignee: 3M Innovative Properties CompanyInventors: Gregory J. Anderson, Scott B. Charles, Michael A. Kropp
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Patent number: 6288375Abstract: An induction heating apparatus and method for heating a substantially continuous first bondline defined by a length of thermally responsive bonding material positioned between a first member and a second member. The first member or second member is made of an electrically conductive material or positioned adjacent an electrically conductive material. The inductive heating apparatus includes a flexible, reshapeable cable assembly operably positionable adjacent the first member along the first bondline. The flexible, reshapeable cable assembly is capable of being manually shaped to a first shape of the first bondline, and is capable of being manually re-shaped to a second shape of a second bondline different than the first shape of the first bondline. An alternating current power supply is electrically coupled to the flexible, reshapeable cable assembly.Type: GrantFiled: October 21, 1999Date of Patent: September 11, 2001Assignee: 3M Innovative Properties CompanyInventors: Larry R. Lappi, Robert J. Boettcher, David G. Miller, Richard F. Miller
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Patent number: 6271309Abstract: The present invention provides curable compositions comprising the hydrosilation product of olefin-containing polymers and organosiloxane hydrides. The curable compositions may be cured to form low surface energy cured composition which may be suitable, for example, as antifouling coatings on substrates such as boat or ship hulls.Type: GrantFiled: July 30, 1999Date of Patent: August 7, 2001Assignee: 3M Innovative Properties CompanyInventors: Gary P. Roberts, Steven J. Vander Louw
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Patent number: 6270543Abstract: 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.Type: GrantFiled: June 25, 1999Date of Patent: August 7, 2001Assignee: 3M Innovative Properties CompanyInventors: John J. Gagliardi, Charles H. Houck
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Patent number: 6267492Abstract: Side emitting light guides are provided in connection with illumination devices, light guide systems, and tasklight illumination kits. The side emitting light guides may be provide bright directional light, or they may be provide diffuse light. The side emitting light guides may be flexible to allow for insertion into tortuous passageways. The light guides may also have a relatively small profile and/or a solid core. The light guides may also include shades that allow an operator to convert the light guides from side emitting to end emitting in order to provide brighter, more focused illumination in a particular area to perform some tasks. When completed, the user has the option of re-configuring the light guides for side emission to provide general area illumination.Type: GrantFiled: April 15, 1999Date of Patent: July 31, 2001Assignee: 3M Innovative Properties CompanyInventors: Thomas J. Reid, David J. Lundin
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Patent number: 6238449Abstract: Structured abrasive articles having an abrasive coating including a binder which comprises the reaction product of a binder precursor and a reactive siloxane polymer are described as well as methods of making same. The reactive siloxane polymers have at least one functional group which is capable of reacting with the binder precursor.Type: GrantFiled: December 22, 1998Date of Patent: May 29, 2001Assignee: 3M Innovative Properties CompanyInventors: Edward J. Woo, Yeun J. Chou, Scott K. Fraser
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Patent number: 6218005Abstract: A tape for heat sealing substrates comprising a self-supporting layer of glass sealant wherein the glass sealant layer comprises a low-softening point glass, a plurality of refractory particles, a dispersant, and a binder. Also described is a method for making the tape and a method of using the tape to form a sealed article.Type: GrantFiled: April 1, 1999Date of Patent: April 17, 2001Assignee: 3M Innovative Properties CompanyInventor: Kyung H. Moh
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Patent number: 6196911Abstract: A tool including abrasive segments, which can be superabrasive segment, mounted to a mounting plate and a method for making the same. The abrasive segments include hard particles and are formed by sintering layers of hard particles with layers of bond material to form a laminated sheet. The abrasive segments are then cut from the laminated sheet and mounted to a planar face of the mounting plate to form a portion of a working region of the tool. Each segment has a grinding surface which can be formed perpendicular to the layers of bond material and layers of hard particles so that the concentration of hard particles at the grinding surface is relatively high. This allows the portion of working surface made up of the abrasive segments to relatively small. The segments can also be mounted to the substrate disc such that the grinding surface of each segment is at an angle to the planar face.Type: GrantFiled: December 4, 1997Date of Patent: March 6, 2001Assignee: 3M Innovative Properties CompanyInventors: Jay B. Preston, Naum N. Tselesin, Ian Gorsuch
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Patent number: 6180245Abstract: The present invention relates to scratches and/or abraded first substrates such as windows that have been repaired using a bonding material and a second undamaged substrate. Repaired articles and method of repair are provided.Type: GrantFiled: October 28, 1998Date of Patent: January 30, 2001Assignee: 3M Innovative Properties CompanyInventors: Jeffrey R. Janssen, Albert I. Everaerts, Donald R. O'Keefe, William F. Sheffield
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Patent number: 6144479Abstract: A low reflectivity, variable attenuation contrast enhancement filter having a total visible light reflectance of less than about 2.0% when measured with light incident to the first outer major surface. The contrast enhancement filter has a first layer(s) for providing antireflection, the first layer(s) defining the first outer major surface; a variable attenuation element interposed between the first major outer surface and the second major outer surface; element(s) for providing fixed attenuation interposed between the variable attenuation element and the first major outer surface; and at least one substrate.Type: GrantFiled: December 16, 1998Date of Patent: November 7, 2000Assignee: 3M Innovative Properties CompanyInventors: Paul S. Lugg, Kenton D. Budd, John E. Bailey, Matthew H. Frey, Scott G. Theirl
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Patent number: 6139594Abstract: An abrasive article is provided that includes a tie coat which improves adhesion between an abrasive layer and a backing in the abrasive article. The tie coat is preferably formed from a tie coat precursor comprising a sulfopoly(ester-urethane) component comprising in its backbone at least one non-terminal arylene or alkylene group comprising a pendant sulfonic acid group or salt thereof having the formula: ##STR1## wherein R is a trivalent aliphatic or aromatic group and M is a cation, said aliphatic or aromatic group being bonded directly to ester groups and wherein the polymer is terminated by at least one hydrolyzable silyl group. Preferably, the abrasive article is a structured abrasive article. Also provided is a method for making an abrasive article.Type: GrantFiled: April 13, 1998Date of Patent: October 31, 2000Assignee: 3M Innovative Properties CompanyInventors: Don H. Kincaid, Scott R. Culler, Larry R. Krepski, Daniel E. Mickus
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Patent number: 6123612Abstract: An abrasive article includes a plurality of abrasive particles securely affixed to a substrate with a corrosion resistant matrix material. The matrix material includes a sintered corrosion resistant powder and a brazing alloy. The brazing alloy includes an element which reacts with and forms a chemical bond with the abrasive particles, thereby securely holding the abrasive particles in place. A method of forming the abrasive article includes arranging the abrasive particles in the matrix material, and applying sufficient heat and pressure to the mixture of abrasive particles and matrix material to cause the corrosion resistant powder to sinter, the brazing alloy to flow around, react with, and form chemical bonds with the abrasive particles, and allow the brazing alloy to flow through the interstices of the sintered corrosion resistant powder and form an inter-metallic compound therewith.Type: GrantFiled: April 15, 1998Date of Patent: September 26, 2000Assignee: 3M Innovative Properties CompanyInventor: Brian D. Goers
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Patent number: 6110031Abstract: An abrasive surface for cutting and grinding tools and having abrasive particles embedded in a filler material. The abrasive surface is bonded to the perimeter edge of a rigid hub and has a circumferential dimension and a width dimension. The abrasive surface is divided along both the circumferential dimension and the width dimension into a plurality of hard regions and soft regions. The hard regions wear more slowly that the soft regions and so different patterns of hard regions and soft regions produce different cutting profiles. A method for fabricating the abrasive surface includes forming a laminated sheet from a plurality of laminated layers. Each laminated layer includes at least a layer of soft, easily deformable material and a layer of abrasive particles. The layers of abrasive particles can be formed into staggered rows to form the pattern of hard regions and soft regions. The layers of the laminated layers are sintered together to form the laminated sheet from which the abrasive surface is cut.Type: GrantFiled: June 25, 1997Date of Patent: August 29, 2000Assignee: 3M Innovative Properties CompanyInventors: Jay B. Preston, Naum N. Tselesin