Patents Represented by Attorney, Agent or Law Firm Daniel R. Pastirik
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Patent number: 6604985Abstract: A process for planarizing, polishing, or providing other modification of a wafer surface or other workpiece. The process includes using an abrasive article having a textured abrasive coating affixed to a backing. The abrasive article includes a monitoring element, such as a window, to allow transmission of radiation therethrough. The radiation level is monitored throughout the planarization process to determine the approach of the desired endpoint. The window in the abrasive coating can be an area devoid of abrasive coating or having minimal or a thinned abrasive coating.Type: GrantFiled: November 7, 2002Date of Patent: August 12, 2003Assignee: 3M Innovative Properties CompanyInventors: Michael J. Muilenburg, Chong-Yong J. Kim, Jerry J. Fizel, Richard J. Webb, John J. Gagliardi, Daniel B. Pendergrass, Jr., Robert J. Streifel, Wesley J. Bruxvoort
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Patent number: 6599602Abstract: An article is disclosed that includes a) a first polycarbonate substrate; b) a second polycarbonate substrate; and c) an adhesive composition disposed between the first polycarbonate substrate and the second polycarbonate substrate such that the first polycarbonate substrate is bonded to said second polycarbonate substrate through the adhesive composition; the adhesive composition includes an adhesive polymer that includes the reaction product of 1) an N-vinyl containing monomer selected from the group consisting of N-vinyl caprolactam, N-vinyl pyrrolidone, and N-vinyl imidazole, and combinations thereof, and 2) an acrylic acid ester monomer of a non-tertiary alcohol having an alkyl group that includes 4 to 20 carbon atoms.Type: GrantFiled: June 2, 1999Date of Patent: July 29, 2003Assignee: 3M Innovative Properties CompanyInventors: Richard E. Bennett, Greggory S. Bennett, Michele A. Craton, Shih-Hung Chou
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Patent number: 6589299Abstract: Described are methods of making electrodes for electrochemical systems, especially cathodes for lithium polymer batteries, and products prepared from the methods; the methods involve the use of a reciprocating extruder, the extrusion of essentially solvent-free systems, or both.Type: GrantFiled: February 13, 2001Date of Patent: July 8, 2003Assignee: 3M Innovative Properties CompanyInventors: Jeffrey J. Missling, Brian C. Eastin, Tony B. Hollobaugh, Katherine A. Graham
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Patent number: 6565969Abstract: The present invention relates to an adhesive article comprising a bondable layer having on at least one major surface a layer of pressure sensitive adhesive, wherein the bondable layer comprises a thermosetting material, a thermoplastic material, or a hybrid material, wherein the pressure sensitive adhesive layer substantially retains pressure sensitive adhesive characteristics after storage at room temperature for at least about three months prior to bonding the adhesive article, and the adhesive article has a overlap shear measured at room temperature according to ASTM D-1002-94 of at least about 6.9 MPa after bonding as well as a method for making an adhesive article.Type: GrantFiled: October 21, 1999Date of Patent: May 20, 2003Assignee: 3M Innovative Properties CompanyInventors: Alain Henri Lamon, Susan C. Noe, Dieter Jung, Juergen Klingen, Jörg von Seggern, Jadwiga Walhoefer, Stefan Weigl, Robert E. Bolitsky
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Patent number: 6500513Abstract: The invention provides a two-part adhesive composition making it possible to mutually bond disk substrates within a relatively short time and to produce an optical disk, and an optical disk having a metal film, corrosion of which is restricted under a high-temperature high-humidity condition, and which is produced by using the two-part adhesive composition. A two-part adhesive composition of the invention comprises first and second parts each containing urethane acrylate having a polytetramethylene glycol skeleton and an acrylate having a hydroxyl group in its molecule, wherein the first part further contains a diacyl peroxide and the second part further contains a tertiary amine. Organic peroxide is preferably diacyl peroxide and a setting promoter is preferably a tertiary amine. Either one, or both, of the first and second parts may further contain a photo-polymerization initiator.Type: GrantFiled: November 29, 2000Date of Patent: December 31, 2002Assignee: 3M Innovative Properties CompanyInventors: Sana Fujii, Sumita B. Mitra, Katsuya Takamori, Kazuta Saito
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Multi-stage irradiation process for production of acrylic based adhesives and adhesives made thereby
Patent number: 6436532Abstract: Disclosed is a novel, multi-stage irradiation process for the production of an acrylic-based adhesive or pressure-sensitive adhesive tape. The first irradiation step or stage employs electromagnetic radiation at a relatively low average intensity (i.e., 0.1 to 20 mW/cm2) and the subsequent step employs electromagnetic radiation at a relatively higher average intensity (i.e., greater than 20 mW/cm2.) Also disclosed are acrylic-based psa tape materials made by the novel process.Type: GrantFiled: January 16, 2001Date of Patent: August 20, 2002Assignee: 3M Innovative Properties CompanyInventors: John D. Moon, Louise A. Ziegler, George F. Vesley, Robert C. Mehner, Mark S. Edberg, Robert D. Anderson -
Patent number: 6428933Abstract: A lithium ion battery that includes: (a) a cathode; (b) an anode in the form of a thin film which, when lithiated, does not exhibit sustained self-heating at temperatures up to about 100° C.; and (c) an electrolyte separating the anode and the cathode. The battery has a capacity of at least 600 milliamp-hours, a specific energy of at least 100 watt-hours/kg, and a volumetric energy of at least 250 watt-hours/liter.Type: GrantFiled: April 1, 1999Date of Patent: August 6, 2002Assignee: 3M Innovative Properties CompanyInventors: Leif Christensen, Robert L. Turner
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Patent number: 6416838Abstract: The present invention relates to a composition comprising a first monomer having the formula CH2═CHCOOR1, where R1 is a linear alkyl group having from 9 to 16 carbon atoms or a branched alkyl group having from 9 to 30 carbon atoms, and whose homopolymer has a Tg less than 0° C.; and/or a second monomer having the formula CH2═CHCOOR2, where R2 is an alkyl group having at least 9 carbon atoms whose homopolymer has a Tg greater than 15° C.; and a third component which may be another monomer, a polymer, surface-modified particles, or combinations thereof as well as article comprising the composition.Type: GrantFiled: June 28, 2000Date of Patent: July 9, 2002Assignee: 3M Innovative Properties CompanyInventors: David S. Arney, Richard E. Bennett, Babu N. Gaddam, Steven M. Heilmann, Brant U. Kolb, Larry R. Krepski, David B. Olson
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Patent number: 6410667Abstract: Initiator systems of the invention comprise a complexed initiator comprising a complex of an amidine complexing agent and an initiator; and a decomplexer. The initiator systems are useful for initiating polymerization of at least one monomer to form polymerized compositions. Kits of the invention useful for forming the polymerized compositions comprise a polymerizable composition and an initiator component, wherein the initiator component comprises a complexed amidine initiator. Bonding compositions can be prepared by mixing the polymerizable composition of the kit with the respective initiator component.Type: GrantFiled: November 4, 1999Date of Patent: June 25, 2002Assignee: 3M Innovative Properties CompanyInventor: Dean M. Moren
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Patent number: 6384165Abstract: A composition comprises organoborane amine complex and 1,4-dioxo-2-butene-functional material. The composition can form a part of a polymerization initiator system that also includes a compound that is reactive with the amine portion of the complex. The system can be used to initiate polymerization of acrylic monomer and to form an acrylic adhesive that has exceptionally good adhesion to low surface energy polymers.Type: GrantFiled: February 15, 2001Date of Patent: May 7, 2002Assignee: 3M Innovative Properties Co.Inventor: Dean M. Moren
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Patent number: 6321483Abstract: A fly fishing line and a method for the manufacture of the line is described. The line comprises a core and an outer coating disposed around the core, the coating comprising polyvinyl chloride polymer, polytetrafluoroethylene and optionally polyacrylate derived from the polymerization of a polyfunctional polymerizable acrylate monomer. The method comprises coating a core with a plastisol comprising a polyvinyl chloride resin polytetrafluoroethylene, and optionally one or more of the foregoing monomers; exposing the plastisol to conditions providing formation of a polymer derived from the polyvinyl chloride resin and having polytetrafluoroethylene dispersed throughout the polymer.Type: GrantFiled: April 20, 1998Date of Patent: November 27, 2001Assignee: 3M Innovative Properties CompanyInventors: Del A. Kauss, Bruce W. Richards
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Patent number: 6251002Abstract: Surface treating articles and methods for the manufacture of such articles are provided. The articles of the invention comprise a rotatable core; a plurality of surface treating segments, the segments having first ends adjacent the core and second ends opposite the first ends; and a cured, expanded adhesive composition bonding the surface treating segment to the core, the adhesive composition comprising (a) an organic epoxide compound having an epoxide functionality of at least 1, (b) an epoxide hardener, (c) a film-forming material, and (d) a foaming agent; wherein the expanded adhesive provides a substantially continuous bond area extending from the core into and around the first end of the segments.Type: GrantFiled: June 14, 1999Date of Patent: June 26, 2001Assignee: 3M Innovative Properties CompanyInventor: Thomas E. Close
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Patent number: 6231629Abstract: An abrasive article is provided which comprises a backing; and at least one three-dimensional abrasive coating comprising diamond particles dispersed within a binder bonded to a surface of the backing, the binder comprising a cured binder precursor including a urethane acrylate oligomer. The abrasive article is capable of rapid glass stock removal coupled with reducing the surface finish as indicated by reduced Ra values using an RPP test procedure.Type: GrantFiled: September 4, 1998Date of Patent: May 15, 2001Assignee: 3M Innovative Properties CompanyInventors: Todd J. Christianson, David D. Nguyen, Robert G. Visser, Soon C. Park
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Patent number: 6217413Abstract: A coated abrasive article having a backing and an abrasive layer coated on the first major surface of the backing, wherein a cross-section of the abrasive layer normal to the thickness and at a center point of the thickness has a total cross-sectional area of abrasive agglomerates which is substantially the same as that at a point along the thickness which is 75% of a distance between the center point and the contact side; a coated abrasive article having a bond system with a Knoop hardness number of at least 70; a coated abrasive article comprising abrasive agglomerates in the shape of a truncated four-sided pyramid; a method of making the coated abrasive article; and a method of abrading a hard workpiece using a coated abrasive article.Type: GrantFiled: November 24, 1998Date of Patent: April 17, 2001Assignee: 3M Innovative Properties CompanyInventor: Todd J. Christianson
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Patent number: 6203944Abstract: An electrode for a lithium battery that includes (a) an electrochemically active metal element which, prior to cycling, is in the form of an intermetallic compound or an elemental metal and (b) a non-electrochemically active metal element. The electrode have high initial capacities that are retained even after repeated cycling. The electrode also exhibit high coulombic efficiencies.Type: GrantFiled: March 26, 1998Date of Patent: March 20, 2001Assignee: 3M Innovative Properties CompanyInventors: Robert L. Turner, Donald J. McClure, Larry J. Krause, Mary M. Buckett, Jeffery R. Dahn, Ou Mao
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Patent number: 6194317Abstract: This invention pertains to a method of modifying or refining a surface of a wafer suited for semiconductor fabrication. This method may be used to modify a wafer having an unmodified, exposed surface comprised of a layer of a second material deployed over at least one discrete feature of a first material attached to the wafer. A first step of this method comprises contacting and relatively moving the exposed surface of the wafer with respect to an abrasive article, wherein the abrasive article comprises an exposed surface of a plurality of three-dimensional abrasive composites comprising a plurality of abrasive particles fixed and dispersed in a binder and maintaining contact to effect removal of the second material. In a second step, the contact and relative motion are continued until an exposed surface of the wafer has at least one area of exposed first material and at least one area of exposed second material.Type: GrantFiled: June 24, 1998Date of Patent: February 27, 2001Assignee: 3M Innovative Properties CompanyInventors: David A. Kaisaki, Heather K. Kranz, Thomas E. Wood, L. Charles Hardy
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Patent number: 6171723Abstract: Approaches are described for producing porous, polymer electrodes with good characteristics for incorporation into polymer batteries. Two preferred processes are presented. The polymer electrodes can be subjected to additional processing to increase their porosity and electrical conductivity. The polymer electrodes preferably are incorporated into a polymer battery where the components are laminated together.Type: GrantFiled: October 10, 1997Date of Patent: January 9, 2001Assignee: 3M Innovative Properties CompanyInventors: Robert B. Loch, James M. Larson, Brian D. Fredericksen
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Patent number: 6143268Abstract: A method for making a carbonaceous material suitable for use as an electrode composition that includes contacting pyrolyzed organic material with hydrocarbon gas for a period and at a temperature sufficient to produce a carbonaceous material characterized such that when the carbonaceous material is incorporated into an electrode composition of a lithium-ion cell, the cell exhibits a reversible capacity of at least about 400 mAH/g of carbonaceous material and an irreversible capacity no greater than about 140 mAH/g of carbonaceous material, the capacities being measured up to the point of plating of metallic lithium on the surface of the carbonaceous material.Type: GrantFiled: October 14, 1997Date of Patent: November 7, 2000Assignee: 3M Innovative Properties CompanyInventors: Jeffery R. Dahn, Eddie R. P. Buiel
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Patent number: 6143216Abstract: Approaches are described for producing porous, polymer electrodes with good characteristics for incorporation into polymer batteries. Two preferred processes are presented. The polymer electrodes can be subjected to additional processing to increase their porosity and electrical conductivity. The polymer electrodes preferably are incorporated into a polymer battery where the components are laminated together.Type: GrantFiled: April 15, 1999Date of Patent: November 7, 2000Assignee: 3M Innovative Properties CompanyInventors: Robert B. Loch, James M. Larson, Brian D. Fredericksen
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Patent number: 6121143Abstract: This invention relates to fixed abrasive articles and abrasive constructions containing at least one fluorochemical agent. The fixed abrasive articles and abrasive constructions are used in semiconductor wafer surface modification processes during the fabrication of semiconductor devices. Specifically, fixed abrasive articles comprise an abrasive composite that is coextensive with a backing and at least one fluorochemical agent associated with the composite. The invention further relates to methods of making fixed abrasive articles comprising at least one fluorochemical agent.Type: GrantFiled: September 19, 1997Date of Patent: September 19, 2000Assignee: 3M Innovative Properties CompanyInventors: Robert P. Messner, Carl R. Kessel, George G. Moore