Patents by Inventor Clayton A. George
Clayton A. George has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6284360Abstract: A multi-layer article which may be provided in the form of a tape comprises a conformable, compressible, melt flow-resistant core layer having first and second major surfaces, a sealant layer on the first major surface of the core layer, and optionally a bonding layer on the second major surface of the core layer. The sealant layer and the bonding layer each have a surface available for contacting a separate substrate. Various thermoset and foam core layers are disclosed as are thermosettable and thermoplastic sealant layers. The articles are useful for sealing two substrates together, particularly where one of the substrates is glass. Thus, the articles are especially adapted for sealing motor vehicle windshields to a frame. Various assemblies and methods for producing the same are also described.Type: GrantFiled: September 30, 1997Date of Patent: September 4, 2001Assignee: 3M Innovative Properties CompanyInventors: Michael A. Johnson, Clayton A. George, Robert J. Boettcher
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Patent number: 6274643Abstract: A curable composition comprising a) a curable epoxy resin, a thermoplastic ethylene-vinyl acetate copolymer resin, and an effective amount of a photocatalyst for the curable epoxy resin, wherein the composition is free from hydrocarbon polyolefins and wherein the sum of a) and b) is 100 weight percent.Type: GrantFiled: July 26, 2000Date of Patent: August 14, 2001Assignee: 3M Innovative Properties CompanyInventors: Naimul Karim, Clayton A. George, Christopher M. Meyer
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Patent number: 6258138Abstract: A coated abrasive article comprises a backing, a first binder on the backing, and a plurality of abrasive particles in the first binder. The first binder precursor is an energy-curable preferably, melt-processable resin containing an epoxy resin, an ethylene-vinyl acetate copolymer, and a curing agent for crosslinking the epoxy resin that is cured to provide a crosslinked make coating. The above binder precursors of the invention are preferably free of homopolymers and copolymers of olefinic monomers. In another aspect, the invention also describes an energy curable first binder precursor containing an epoxy resin, an ethylene-vinyl acetate copolymer, a polyfunctional acrylate component and a curing agent for crosslinking the epoxy resin that is cured to provide a crosslinked make coating. The invention also relates to a method of producing such coated abrasive articles and a surface-treated backing material.Type: GrantFiled: May 3, 2000Date of Patent: July 10, 2001Assignee: 3M Innovative Properties CompanyInventors: Robert J. DeVoe, Thomas M. Clausen, Gregg D. Dahlke, Clayton A. George, Naimul Karim, Craig A. Masmar
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Patent number: 6254954Abstract: The invention relates to a pressure-sensitive adhesive tape with improved room temperature handleability comprising an adhesive layer with at least one exposed surface and optionally a backing, wherein the pressure-sensitive adhesive layer comprises an epoxy/polyester based pressure sensitive adhesive which is crosslinkable upon exposure to actinic or e-beam irradiation and optionally heat, and comprises (i) 30-80% by weight of a polyester component comprising one or more amorphous polyesters compounds, (ii) 20-70% by weight of an epoxy component comprising one or more epoxy resins and/or monomers, (iii) 0-50% by weight of a hydroxyl-functional component containing one or more hydroxyl-containing compounds having a hydroxyl functionality of at least 1, and (iv) an effective amount of a photoinitiator component for crosslinking the pressure-sensitive adhesive, whereby the weight percentages refer to the total mass of components (i)-(iv) and add up to 100 wt.Type: GrantFiled: August 26, 1999Date of Patent: July 3, 2001Assignee: 3M Innovative Properties CompanyInventors: Greggory S. Bennett, Clayton A. George, Guido Hitschmann, Alain H. Lamon
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Patent number: 6193630Abstract: A powershift transmission of an engine-driven vehicle includes input and output shafts, a plurality of fluid pressure operated clutch for controlling flow of torque through the transmission and pressure control valves for controlling fluid pressure communicated to the clutches. A method of controlling an off-going clutch during a shift of the transmission includes detecting a load on the engine, as a function of the detected load, determining a slip pressure, which when applied to the clutch would cause the clutch to slip, and applying the slip pressure to the clutch. If the clutch is not slipping, the pressure applied to the clutch is reduced until relative rotation (slip) between the input and output elements of said clutch is detected. Then a pressure increase is determined, which when applied to the slipping clutch would allow the slipping clutch to continue to slip while transmitting the same torque it was transmitting before it began to slip.Type: GrantFiled: July 26, 1999Date of Patent: February 27, 2001Assignee: Deere & CompanyInventors: Clayton George Janasek, Richard Marvin Sparks
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Patent number: 6153302Abstract: A curable composition comprising a) a curable epoxy resin, a thermoplastic ethylene-vinyl acetate copolymer resin, and an effective amount of a photocatalyst for the curable epoxy resin, wherein the composition is free from hydrocarbon polyolefins and wherein the sum of a) and b) is 100 weight percent.Type: GrantFiled: February 29, 2000Date of Patent: November 28, 2000Assignee: 3M Innovative Properties CompanyInventors: Naimul Karim, Clayton A. George, Christopher M. Meyer
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Patent number: 6136384Abstract: A curable composition comprising a) a curable epoxy resin, a thermoplastic ethylene-vinyl acetate copolymer resin, and an effective amount of a photocatalyst for the curable epoxy resin, wherein the composition is free from hydrocarbon polyolefins and wherein the sum of a) and b) is 100 weight percent.Type: GrantFiled: February 29, 2000Date of Patent: October 24, 2000Assignee: 3M Innovative Properties CompanyInventors: Naimul Karim, Clayton A. George, Christopher M. Meyer
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Patent number: 6077601Abstract: A coated abrasive article comprises a backing, a first binder on the backing, and a plurality of abrasive particles in the first binder. The first binder precursor is an energy-curable preferably, melt-processable resin containing an epoxy resin, an ethylene-vinyl acetate copolymer, and a curing agent for crosslinking the epoxy resin that is cured to provide a crosslinked make coating. The above binder precursors of the invention are preferably free of homopolymers and copolymers of olefinic monomers. In another aspect, the invention also describes an energy curable first binder precursor containing an epoxy resin, an ethylene-vinyl acetate copolymer, a polyfunctional acrylate component and a curing agent for crosslinking the epoxy resin that is cured to provide a crosslinked make coating. The invention also relates to a method of producing such coated abrasive articles and a surface-treated backing material.Type: GrantFiled: May 1, 1998Date of Patent: June 20, 2000Assignee: 3M Innovative Properties CompanyInventors: Robert J. DeVoe, Thomas M. Clausen, Gregg D. Dahlke, Clayton A. George, Naimul Karim, Craig A. Masmar
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Patent number: 6057382Abstract: A curable composition comprising a) a curable epoxy resin, a thermoplastic ethylene-vinyl acetate copolymer resin, and an effective amount of a photocatalyst for the curable epoxy resin, wherein the composition is free from hydrocarbon polyolefins and wherein the sum of a) and b) is 100 weight percent.Type: GrantFiled: May 1, 1998Date of Patent: May 2, 2000Assignee: 3M Innovative Properties CompanyInventors: Naimul Karim, Clayton A. George, Christopher M. Meyer
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Patent number: 6030701Abstract: The invention provides a method for imparting topographical or protective features to a substrate by contacting a sheet material comprising a thermosettable layer with a substrate and heating the sheet material to an elevated temperature.Type: GrantFiled: September 20, 1996Date of Patent: February 29, 2000Assignee: 3M Innovative Properties CompanyInventors: Michael A. Johnson, Clayton A. George, Peggy S. Willett, Scott R. Meyer
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Patent number: 5964979Abstract: The present invention includes a method for sealing a discontinuity in the surface of a substrate comprises the steps of: (a) placing over the discontinuity an article comprising (i) a melt-flowable composition characterized by a first width, and (ii) a shaped, polymeric cap having a pre-selected, cross-sectional profile characterized by a second width and a shape in which the thickness of the cup across its width, the width of the cap, or both the width and thickness of the cap vary; (b) heating the article to cause the melt-flowable composition to flow and seal the discontinuity, where the cap controls the melt-flow behavior of the melt-flowable composition to substantially confine the melt-flowable composition to the area underneath the cap; and (c) allowing the article to cool while substantially retaining the pre-selected cross-sectional profile of the cap. The present invention also includes various articles for use in the method.Type: GrantFiled: August 15, 1997Date of Patent: October 12, 1999Assignee: 3M Innovative Properties CompanyInventors: Clayton A. George, Michael A. Johnson, Peggy S. Willett
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Patent number: 5834109Abstract: A coated abrasive article comprises a backing, a first binder on the backing, and a plurality of abrasive particles in the first binder. The first binder is a hot melt pressure sensitive adhesive that is energy cured to provide a crosslinked coating. The invention also relates to a method of producing such articles.Type: GrantFiled: June 25, 1996Date of Patent: November 10, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gary J. Follett, Clayton A. George
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Patent number: 5776290Abstract: A coated abrasive article comprises a backing, a first binder on the backing, and a plurality of abrasive particles in the first binder. The first binder is a hot melt pressure sensitive adhesive that is energy cured to provide a crosslinked coating. The invention also relates to a method of producing such articles.Type: GrantFiled: July 3, 1996Date of Patent: July 7, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gary J. Follett, Clayton A. George
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Patent number: 5582672Abstract: A coated abrasive article comprises a backing, a first binder on the backing, and a plurality of abrasive particles in the first binder. The first binder is a hot melt pressure sensitive adhesive that is energy cured to provide a crosslinked coating. The invention also relates to a method of producing such articles.Type: GrantFiled: June 1, 1995Date of Patent: December 10, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gary J. Follett, Clayton A. George
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Patent number: 5436063Abstract: A coated abrasive article comprises a backing, a first binder on the backing, and a plurality of abrasive particles in the first binder. The first binder is a hot melt pressure sensitive adhesive that is energy cured to provide a crosslinked coating. The invention also relates to a method of producing such articles.Type: GrantFiled: April 15, 1993Date of Patent: July 25, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gary J. Follett, Clayton A. George
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Patent number: 5391414Abstract: A magnetic recording disk that includes an annular recording medium disk bonded to a hub with a pressure sensitive adhesive. The pressure sensitive adhesive bonds the disk to a flange portion of the hub. The present invention also includes a method of bonding an annular recording medium disk to a hub, comprising the steps of: providing a crosslinkable hot-melt adhesive containing a fluorescent dye; applying a quantity of the crosslinkable adhesive to the hub at a specified application temperature; and using a light detector to measure the amount of adhesive on the hub.Type: GrantFiled: September 21, 1992Date of Patent: February 21, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Arlin Doering, Clayton A. George