Patents Represented by Attorney, Agent or Law Firm Kent S. Kokko
  • Azlactone initiators for nitroxide-mediated polymerization
    Patent number: 6784264
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: August 31, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Duane D. Fansler, Michael S. Wendland, Babu N. Gaddam
  • Ring-opened azlactone initiators for nitroxide-mediated polymerization
    Patent number: 6784265
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: August 31, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Duane D. Fansler, Kevin M. Lewandowski, Michael S. Wendland, Babu N. Gaddam
  • Method of removing hexafluoropropylene dimers
    Patent number: 6774270
    Abstract: A method of removing hexafluoropropylene dimers (“HFP dimers”), dimer hydrides and other oligomers from a fluid is described. The method comprises heating the fluid to isomerize the HFP dimers to the thermodynamic isomer, and contacting the fluid with a tertiary amine (or salts thereof) to form a hexafluoropropylene dimer—tertiary amine adduct. The method may further comprise the step of separating the dimer adducts from the reaction mixture.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: August 10, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Zhongxing Zhang, Zai-Ming Qiu, Daniel R. Vitcak, Richard M. Flynn
  • Surface modified organic thin film transistors
    Patent number: 6768132
    Abstract: An organic thin film transistor comprising a self-assembled monolayer interposed between a gate dielectric and an organic semiconductor layer. The monolayer is a product of a reaction between the gate dielectric and a precursor to the self-assembled monolayer. The semiconductor layer comprises a material selected from an acene, substituted with at least one electron-donating group, halogen atom, or a combination thereof, or a benzo-annellated acene or polybenzo-annellated acene, which optionally is substituted with at least one electron-donating group, halogen atom, or a combination thereof. Methods of making a thin film transistor and an integrated circuit comprising thin film transistors.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: July 27, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Terrance P. Smith, Mark J. Pellerite, Tommie W. Kelley, Dawn V. Muyres, Dennis E. Vogel, Kim M. Vogel, Larry D. Boardman, Timothy D. Dunbar
  • Azlactone chain transfer agents for radical polymerization
    Patent number: 6762257
    Abstract: Chain transfer agents for controlled radical polymerizations (RAFT) are described. The chain transfer agents have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: July 13, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Duane D. Fansler, Michael S. Wendland, Steven M. Heilmann, Babu N. Gaddam
  • Water-and oil-repellency imparting ester oligomers comprising perfluoroalkyl moieties
    Patent number: 6753380
    Abstract: Fluorochemical ester compositions comprising one or more compounds or oligomers having at least on fluorine-containing repeatable unit and at least one fluorine-containing terminal group are described. The compositions are useful as coatings or incorporated as melt additives. The fluorochemical compositions impart oil and water repellency to the substrate. In other aspects, this invention relates to processes for imparting oil and water repellency characteristics to substrates and articles.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: June 22, 2004
    Assignee: 3M Innovative Properties Company
    Inventor: Zai-Ming Qiu
  • Receptor medium having a microfibrillated surface
    Patent number: 6753080
    Abstract: A receptor medium with an oriented film having at least one microfibrillated surface is described. The receptor medium can receive jettable materials, which include inks, adhesives, particulate dispersions, electrically, thermally or magnetically modifiable materials, biological fluids, chemical reagents and combinations thereof. The microfibrillated surface provides good ink receptive properties particularly for solvent based inks.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: June 22, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: John M. Sebastian, Jeffrey O. Ernslander, Mario A. Perez, Terry R. Hobbs, Robert S. Kody, Caroline M. Ylitalo, Robert D. Taylor, Oh Sang Woo
  • Ring-opened azlactone chain transfer agents for radical polymerization
    Patent number: 6753391
    Abstract: Chain transfer agents for controlled radical polymerizations (RAFT) are described. The chain transfer agents have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: June 22, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Duane D. Fansler, Michael S. Wendland, Babu N. Gaddam, Steven M. Heilmann
  • High internal phase emulsion foams containing polyelectrolytes
    Patent number: 6750261
    Abstract: This invention relates to foams made by polymerizing high internal phase emulsions (HIPE) containing polyelectrolytes. The emulsions comprise a continuous oil phase and a co- or discontinuous aqueous phase. The resulting foams are useful as a separations medium.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: June 15, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Susannah C. Clear, Ranjani V. Parthasarathy, Ravi K. Sura, Philip P. Soo
  • Azlactone photoiniferters for radical polymerization
    Patent number: 6747104
    Abstract: Photoiniferters for controlled radical polymerizations are described. The photoiniferters have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: June 8, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Michael S. Wendland, Kevin M. Lewandowski, Duane D. Fansler, Babu N. Gaddam, Steven M. Heilmann
  • Perfluoroalkyl haloalkyl ethers and compositions and applications thereof
    Patent number: 6743262
    Abstract: Described are compositions comprising perfluoroalkyl haloalkyl ethers and, optionally, surfactant; uses for perfluoroalkyl haloalkyl ether compounds and compositions thereof, optionally comprising surfactant; and perfluoroalkyl haloalkyl ethers.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: June 1, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Frederick E. Behr, Richard M. Flynn
  • Method for imparting soil and stain resistance to carpet
    Patent number: 6736857
    Abstract: A solventless cleaning and treating composition for carpet is described. The composition comprises an aqueous solution of a stainblocking polymer, a silsesquioxane anti-soiling polymer, a surfactant and optionally a sequesting agent or salt.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: May 18, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: John C. Chang, Robert F. Deutsch
  • Foamed nitrogen in liquid CO2 for fracturing
    Patent number: 6729409
    Abstract: A method for fracturing subterranean formations surrounding oil and gas wells using a fracturing fluid consisting of a foam constituted by a liquid phase and a gaseous phase. The liquid phase has a foam forming substance dissolved therein. The foam forming substance is preferably a surfactant such as a non-ionic hydrofluoroether surfactant. The liquid phase is preferably CO2 and the gaseous phase N2.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: May 4, 2004
    Inventors: D. V. Satyanarayana Gupta, Ronald G. Pierce, Cheryl L. Senger Elsbernd
  • Coating composition comprising a fluorochemical polyether silane partial condensate and use thereof
    Patent number: 6716534
    Abstract: A composition comprising a least one fluorochemical polyether silane compound having a polyfluoropolyether segment and at least two hydrolysable silane groups per molecule, one or more non-fluorinated compounds having at least two hydrolysable groups per molecule, and/or a partial condensate thereof, is disclosed. The composition provides durable water, oil and stain repellency to a substrate.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: April 6, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: George G. I. Moore, Rudolf J. Dams, Franceska M. Fieuws, Guido P. Piessens
  • Microfibrillated articles comprising hydrophillic component
    Patent number: 6692823
    Abstract: Described are hydrophilic fibrillated articles that include melt-processable polymer and hydrophilic component such as hydrophilic surfactant or hydrophilic polymer, as well as methods of preparing such articles.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: February 17, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Robert S. Kody, Mario A. Perez, Thomas P. Klun, Paul D. Graham, Christopher K. Haas, Ravi K. Sura, Diane R. Wolk, Julie S. Prudich, Larry R. Krepski, Terry R. Hobbs, John M. Sebastian, Paul DeRoussel
  • Water and oil repellent masonry treatments
    Patent number: 6689854
    Abstract: The present invention provides a water-soluble and shelf-stable aqueous fluorochemical polymeric treatment useful to treat porous substrates to render them repellent to water- and oil-based stains. The treatment comprises a water-soluble or dispersible fluorochemical polymer containing only carbon atoms in the backbone, with a plurality of each of the following groups pendant from the backbone: (a) fluoroaliphatic groups, (b) carboxyl-containing groups, (c) silyl groups and optionally (d) other non-hydrophilic groups. Because the water-soluble polymeric treatment, and the shelf-stable aqueous solutions thereof, can be applied to porous substrates in aqueous solution, they eliminate the need for environmentally harmful and toxic co-solvents.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: February 10, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Wayne W. Fan, Steven J. Martin
  • Fibrous films and articles from microlayer substrates
    Patent number: 6680114
    Abstract: Described are microfiber articles and methods and intermediates for their production, the microfiber articles being preferably produced from co-extruded microlayer films, and the articles having a microlayer construction that allows selection of the different layers to have different properties such that the article can have a desired combination of properties.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: January 20, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Robert S. Kody, Mario A. Perez, Andrew T. Ruff
  • Ring-opened azlactone initiators for nitroxide-mediated polymerization
    Patent number: 6680362
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: January 20, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Duane D. Fansler, Kevin M. Lewandowski, Michael S. Wendland, Babu N. Gaddam
  • Pressure sensitive adhesives possessing high load bearing capability
    Patent number: 6677402
    Abstract: Pressure sensitive adhesives are provided which possess high load bearing capabilities at elevated temperatures. The adhesives are prepared by polymerization of a syrup polymer composition having a first solute polymer having reactive, pendant functional groups, a second component having co-reactive functional groups, and a monomer mixture. The syrup polymer contains reactive electrophilic or nucleophilic functional groups that can subsequently crosslink by reaction with a second component having co-reactive functional groups.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: January 13, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Babu N. Gaddam, Steven M. Heilmann, Ahmed S. Abuelyaman
  • Azlactone initiators for nitroxide-mediated polymerization
    Patent number: 6677413
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: January 13, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Duane D. Fansler, Michael S. Wendland, Babu N. Gaddam