Patents Represented by Attorney D. M. Sell
  • Patent number: 4841090
    Abstract: Fluorochemical amine salt compounds containing one or more fluoroaliphatic radicals and one or more salt-forming amino groups which have cyanoalkyl groups as N-substituents groups, such compounds being useful as treating agents for fibrous substrates, such as textiles, e.g., carpet, to modify surface properties thereof, viz., to impart oil and water repellency to the surface of said substrates.
    Type: Grant
    Filed: September 29, 1987
    Date of Patent: June 20, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Kalyanji U. Patel
  • Patent number: 4837067
    Abstract: A nonwoven thermal insulating batt is provided. The batt comprises structural staple fibers and bonding staple fibers, the fibers being entangled and substantially parallel to the faces of the batt at the face portions and substantially perpendicular to the faces of the batt in the central portion of the batt. The bonding staple fibers are bonded to the structural staple fibers and other bonding staple fibers at points of contact. Also provided is a method of making the nonwoven thermal insulating batt which comprises air-laying a web of structural staple fibers and bonding staple fibers with the fibers being entangled and substantially parallel to the faces of the web at the face portions and in an angled, layered configuration in the central portions of the web.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: June 6, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Patrick H. Carey, Jr., Joseph P. Kronzer
  • Patent number: 4830910
    Abstract: A low adhesion perfluoropolyether composition is provided. The composition comprises a copolymer prepared from a mixture of at least one monofunctional perfluoropolyether monomer and at least one difunctional perfluoropolyether monomer, each of said monofunctional and difunctional monomers having a molecular weight in the range of about 1500 to 2500.
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: May 16, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: James M. Larson
  • Patent number: 4824718
    Abstract: A disposable article such as a diaper or feminine hygiene product having a rattle-free, liquid impermeable, vapor permeable, microporous, polymeric film having pores defining passages extending therethrough, the passages being partially filled with a rattle-reducing additive material and a method for making same is disclosed.
    Type: Grant
    Filed: December 4, 1987
    Date of Patent: April 25, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Kirk K. Hwang
  • Patent number: 4822373
    Abstract: A treated fibrous polyamide substrate having resistance to staining by acid colorants is provided. The treated substrate comprises a fibrous polyamide substrate having applied thereto (a) a partially sulfonated novolak resin and (b) polymethacrylic acid, copolymers of methacrylic acid, or combinations of said polymethacrylic acid and said copolymers of methacrylic acid.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: April 18, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Maynard H. Olson, John C. Chang, Imelda A. Muggli
  • Patent number: 4820588
    Abstract: Normally liquid peroxidic poly(perfluorooxyalkylene) compositions comprising a mixture of peroxidic poly(perfluorooxyalkylene) compounds, derivatives of the poly(perfluorooxyalkylene) compositions comprising a mixture of non-peroxidic polyfluoropolyether compounds, and derivatives of the polyfluoropolyether compositions comprising functional and non-functional derivatives of the polyfluoropolyether compositions are provided. Each peroxidic poly(perfluorooxyalkylene) compound comprises a backbone of randomly distributed perfluorooxyalkylene units, represented by the formulas ##STR1## which when bonded to an --O-- of any of the perfluorooxyalkylene units, forms a peroxy group, --O--O--, which imparts the peroxidic characteristics to the material, and backbone-pendant perfluoroalkoxy groups or perfluoroalkoxy groups substituted with one or more ether oxygen atoms, the terminal ether oxygen atoms of which are bonded to carbon atoms of the ##STR2## backbone units.
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: April 11, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Steven P. Brinduse, Anthony B. Clinch, Daniel K. McIntyre, Allen L. Noreen, Mark J. Pellerite
  • Patent number: 4816333
    Abstract: A coated article having a substrate coated with a layer of silica particles is provided. The coating is substantially uniform in thickness, adheres aggressively to the substrate, and provides excellent antireflection properties to the substrate.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: March 28, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Roger W. Lange, Harold G. Sowman, Soon-Kun Kang
  • Patent number: 4813948
    Abstract: Microfiber microwebs are provided. The microfiber microwebs have relatively dense nuclei with individual fibers and/or fiber bundles protruding therefrom. The microfiber microwebs can be incorporated into nonwoven webs of blown microfibers, air-laid staple fibers, or wood pulp fibers as well as into shaped articles having porous covering materials. The microfiber microwebs are useful in sorbent, filtration, and thermal insulation materials. The microfiber microwebs are prepared by divellicating a microfiber web to form discrete particles of microfiber microwebs.
    Type: Grant
    Filed: September 1, 1987
    Date of Patent: March 21, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Thomas I. Insley
  • Patent number: 4810323
    Abstract: Storage-stable, thermally-curable, one-part epoxy resin compositions comprising a curable epoxide resin; a curative amount of an aliphatic or non-aromatic cyclic polyol having about 2 to 18 carbon atoms, at least two hydroxy groups of said polyol being primary or secondary, and said polyol being free of strong acid groups, and free of electron-withdrawing substituents and large groups which cause steric hindrance in the .alpha.-position in relation to the carbon atoms attached to the methylol groups of the polyol; and a catalytic amount of an imidazole compound.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: March 7, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kent S. Tarbutton, Janis Robins, John C. Tangen
  • Patent number: 4801480
    Abstract: A composite adhesive tape system for interconnecting surfaces, parts and the like which includes a main fastening tape portion coated with an aggressive, tacky adhesive, a target tape portion and a release tape portion which covers the target tape portion and a centrally located layer which covers part of the release tape and partly folds under the target tape portion and methods for manufacturing and using the tape system as described. This system is particularly useful for providing novel prelaminated tape systems for diapers.
    Type: Grant
    Filed: November 3, 1987
    Date of Patent: January 31, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Victor F. Panza, Alejandro Rosso, Daniel A. Gayuli
  • Patent number: 4788339
    Abstract: Perfluoroaminoethers are provided. The perfluoroaminoethers have two or more tertiary amino nitrogen atoms each of which is connected to the other(s) adjacent thereto by (1) a catenary, ether oxygen-containing, perfluoroalkylene linking group the catenary carbon atoms of which are in the form of segments of vicinal carbon atoms that are 2 to 4 in number, said segments having up to 5 carbon atoms, a catenary ether oxygen-containing perfluorocyclohexylene linking group, or (3) a catenary ether oxygen-containing linking group having perfluoroalkylene and perfluorocyclohexylene moieties, the sum of the catenary ether oxygen atoms being 1 to 6.
    Type: Grant
    Filed: August 14, 1986
    Date of Patent: November 29, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: George G. I. Moore, John C. Hansen
  • Patent number: 4772645
    Abstract: Storage-stable, thermally-curable, one-part epoxy resin compositions comprising a curable opoxide resin; a curative amount of an aliphatic or non-aromatic cyclic polyol having about 2 to 18 carbon atoms, at least two hydroxy groups of said polyol being primary or secondary, and said polyol being free of strong acid groups, and free of electron-withdrawing substituents and large groups which cause steric hindrance in the .alpha.-position in relation to the carbon atoms attached to the methylol groups of the polyol; and a catalytic amount of an imidazole compound.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: September 20, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kent S. Tarbutton, Janis Robins, John C. Tangen
  • Patent number: 4769283
    Abstract: Normally tacky, pressure-sensitive adhesive tapes which are soft, pliable, conformable, and heat sealable are provided. The tapes have a backing of a substantially untensilized, tough, ductile film, the film being a blend of crystalline isotactic polypropylene and a compatible ethylene-based polymer, and a normally tacky, pressure-sensitive adhesive on one side of the film. The films have a longitudinal secant modulus of less than 3700 kg/cm.sup.2, a transverse secant modulus of less than 3700 kg/cm.sup.2, a longitudinal elastic modulus of less than 5200 kg/cm.sup.2, a transverse elastic modulus of less than 5200 kg/cm.sup.2, a longitudinal stiffness of less than 1.7, and a transverse stiffness of less than 3.0.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: September 6, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Alan J. Sipinen, Del A. Kauss
  • Patent number: 4769022
    Abstract: A nonwoven cleansing pad is provided. The pad comprises high-sorbency, liquid sorbent fibers capable of forming a hydrogelatinous outer surface by sorption of liquid and thermally bondable binder fibers. The cleansing pad is substantially free of supplemental lubricant and is integrally self-lubricating when wet with water.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: September 6, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robert W. H. Chang, Joseph P. Kronzer
  • Patent number: 4760919
    Abstract: Tamper-indicating package comprising two webs, each of which comprises an outer layer of polymeric material and an inner layer of polymeric material. At least one of said inner layer or said outer layer of at least one of said webs bears a random pattern of markings. Upon access to the interior of the package, either the random pattern of markings will be altered or one or both of the polymeric layers will be damaged, thus indicating that the package has been subject to tampering.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: August 2, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Rodger J. Pereyra
  • Patent number: 4755178
    Abstract: Sorbent sheet products are prepared comprising a coherent fibrous web that includes entangled blown fibers and liquid transport fibers intermingled with the blown fibers and an array of solid high sorbency liquid-sorbent polymeric particles uniformly dispersed and physically held within the web. The particles swell upon sorption of liquid, and the transport fibers cause increased and more rapid sorption of liquid by conducting the liquid from external portions of the web to internal portions of the web.
    Type: Grant
    Filed: June 11, 1986
    Date of Patent: July 5, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas I. Insley, Daniel E. Meyer
  • Patent number: 4749592
    Abstract: A grouting composition for sealing structures to inhibit water leakage therethrough and for stabilizing soil is provided. The composition is provided as a two-part system. Part A is an aqueous solution of a hydrophililc, water soluble prepolymer having a polyether backbone and terminal active olefinic groups, the olefinic groups being connected to the polyether backbone by linking groups selected from --NH--, --CONH--, --OCONH--, and --NHCONH--, and tertiary amine catalyst. Part B is an aqueous solution of a initiator. Parts A and B are mixed and react to form a gel.
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: June 7, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Alton J. Gasper, Charles D. Wright
  • Patent number: 4749526
    Abstract: Fluoroaliphatic ether-containing carbonyl fluoride compounds are prepared by reacting a fluorinated carbonyl compound with hexafluoropropylene oxide in the presence of at least one catalyst selected from potassium iodide, potassium bromide, cesium iodide, cesium bromide, rubidium iodide, and rubidium bromide.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: June 7, 1988
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventor: Richard M. Flynn
  • Patent number: 4748267
    Abstract: Fluorochemical biurets containing one or more monovalent fluoroaliphatic radicals having at least three fully fluorinated terminal carbon atoms and one or more biuret moieties, the radicals and moieties bonded together by hetero atom-containing or organic linking groups are provided. These fluorochemical biurets are useful in the form of aqueous dispersions or emulsions or organic solutions in the treatment of fibrous substrates, such as textile fibers, to impart oil and water repellency.
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: May 31, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: John C. Chang
  • Patent number: 4743300
    Abstract: Normally liquid peroxidic poly(perfluorooxyalkylene) compositions comprising a mixture of peroxidic poly(perfluorooxyalkylene) compounds, derivatives of the poly(perfluorooxyalkylene) compositions comprising a mixture of non-peroxidic polyfluoropolyether compounds, and derivatives of the polyfluoropolyether compositions comprising functional and non-functional derivatives of the polyfluoropolyether compositions are provided. Each peroxidic poly(perfluorooxyalkylene) compound comprises a backbone of randomly distributed perfluorooxyalkylene units, represented by the formulas --CF.sub.2 O--, ##STR1## and --O--, which when bonded to and --O-- of any of the perfluorooxyalkylene units, forms a peroxy group, --O--O--, which imparts the peroxidic characteristics to the material, and backbone-pendant perfluoroalkoxy groups or perfluoroalkoxy groups substituted with one or more ether oxygen atoms, the terminal ether oxygen atoms of which are bonded to carbon atoms of the ##STR2## backbone units.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: May 10, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Steven P. Brinduse, Anthony B. Clinch, Daniel K. McIntyre, Allen L. Noreen, Mark J. Pellerite