Patents Represented by Attorney D. M. Sell
  • Patent number: 5009224
    Abstract: A method is disclosed for treating a wound or attaching a device or article to the skin using a film of pressure sensitive adhesive having dispersed therein a discontinuous gaseous phase contained within voids in the adhesive. The adhesive is formed from the polymerization of a hydrophilic premix and exhibits high moisture vapor transmission and fluid absorbency.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: April 23, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Susan M. Cole
  • Patent number: 4994322
    Abstract: A repositionable pressure-sensitive adhesive comprising from about 70% to about 99% hollow, polymeric, acrylate, inherently tacky, infusible, solvent-insoluble, solvent-dispersible, elastomeric microspheres comprising at least one alkyl acrylate or alkyl methacrylate ester, a majority of the microspheres having one or more interior voids having a diameter of at least about 10% of the diameter of the microsphere, and correspondingly, from about 30% to about 1% of a binder copolymer comprising an elastomeric polymeric backbone having pendant therefrom high Tg polymeric moieties.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: February 19, 1991
    Assignee: Minnesota Mining and Manufacturing
    Inventors: Joaquin Delgado, Roger W. Leinen, Spencer F. Silver
  • Patent number: 4986496
    Abstract: A conformable drag reduction article is provided having a patterned surface capable of reducing drag resistance by fluid flowing thereover.
    Type: Grant
    Filed: May 31, 1985
    Date of Patent: January 22, 1991
    Assignee: Minnesota Mining and Manufacturing
    Inventors: Francis J. Marentic, Terry L. Morris
  • Patent number: 4985380
    Abstract: Thin flakes can be made from a sol of metal oxides by a method analogous to blowing soap bubbles, preferably by directing a laminar flow of air through a narrow, annular orifice. The bubbles can be dried and broken into fragments which are fired to produce refractory flakes that can be incorporated into protective coatings. The resulting coatings can be pearlescent while also affording good resistance to abrasion and to corrosive materials.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: January 15, 1991
    Assignee: Minnesota Mining and Manufacturing
    Inventor: David K. Douden
  • Patent number: 4985475
    Abstract: The invention provides a grease compatible encapsulant composition capable of use with signal transmission devices, such as electrical or optical cable. The composition is the extended reaction product of an admixture of an anhydride functionalized compound, a crosslinking agent, and an oxirane containing material which provides improved hydrolytic stability to the encapsulant composition.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: January 15, 1991
    Assignee: Minnesota Mining and Manufacturing
    Inventors: Thomas S. Croft, Hartwick Haugen
  • Patent number: 4933234
    Abstract: A primed polymeric article is provided. The article comprises a polymeric substrate having graft polymerized thereon at least one organic nucleophilic graft-polymerizable monomer or salt thereof which is capable of accelerating the cure of a cyanoacrylate adhesive. The invention also provides an article wherein the primed polymeric article is adhered to a substrate with a cyanoacrylate adhesive and a method for adhering a polymeric first substrate to a second substrate with a cyanoacrylate adhesive.
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: June 12, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James J. Kobe, John T. Simpson, Kimberly K. Harmon, Charles D. Wright
  • Patent number: 4921645
    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: January 4, 1989
    Date of Patent: May 1, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Thomas I. Insley
  • Patent number: 4908263
    Abstract: A nonwoven thermal insulating stretch fabric is provided. The fabric comprises 10 to 90 weight percent elastomeric melt blown microfiber web, the microfibers having an average diameter of less than about 25 micrometers, and 10 to 90 weight percent crimped bulking fibers. The microfibers are bonded to the bulking fibers at points of contact and the fabric has substantially uniform stretch properties such that the fabric will recover to at least 90 percent of the original dimensions within one hour after being elongated to 125 percent of the original length.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: March 13, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John F. Reed, Daniel E. Meyer, Thomas P. Hanschen
  • Patent number: 4904253
    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: April 24, 1989
    Date of Patent: February 27, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Alan J. Sipinen, Del A. Kauss
  • Patent number: 4902553
    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: November 18, 1988
    Date of Patent: February 20, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kirk K. Hwang, Linda W. Suszko
  • Patent number: 4889656
    Abstract: Perfluoro(cycloaliphatic methyleneoxyalkylene) compositions are provided. These compositions comprise perfluoro(cycloaliphatic methyleneoxyalkylene) carbonyl fluoride compounds having (a) a perfluorocycloaliphatic moiety which can have up to two perfluoroalkyl substituents and a perfluoroalkylene substituent, and (b) a perfluoromethyleneoxyalkylene carbonyl fluoride radical, the methylene group of the radical being bonded to a ring carbon atom or the perfluoroalkylene substituent of the moiety and the alkylene group of the perfluoromethyleneoxyalkylene carbonyl fluoride being a perfluoro(methyl)methylene group, a perfluoroisopropyleneoxy(methyl)methylene group, or a poly(perfluoroisopropyleneoxy)perfluoro(methyl)methylene group having up to about 10 perfluoroisopropyleneoxy units.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: December 26, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard M. Flynn, Patricia M. Savu
  • Patent number: 4886619
    Abstract: Compounds are provided which comprise a fluorocarbon terminal portion and a chiral hydrocarbon terminal portion, said terminal portions being connected by a central core, said compounds having tilted smectic mesophases or having latent tilted smectic mesophases which develop when said compounds having said latent mesophases are in admixture with said compounds having tilted smectic mesophases or said compounds having latent tilted smectic mesophases.
    Type: Grant
    Filed: May 29, 1987
    Date of Patent: December 12, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Eugene P. Janulis
  • Patent number: 4884862
    Abstract: A fiber optic fan-out module has a channel for receiving a fiber optic cable and a groove adjacent the channel for receiving protective filaments from the cable. The module further has an anchor block with a passage therethrough for receiving a loose protective sleeve assembly. The anchor block has a groove for receiving protective filaments from the sleeve assembly.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: December 5, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Mogens Kofod
  • Patent number: 4875901
    Abstract: A method for providing fibrous polyamide materials with stain resistance is provided. The method comprises contacting the fibrous polyamide materials with an aqueous solution comprising a normally solid, water-soluble, partially sulfonated novolak resin, which comprises the condensation product of at least one phenolic compound and an aldehyde, and a water-soluble divalent metal salt.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: October 24, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: George L. Payet, John C. Chang
  • Patent number: 4873020
    Abstract: Fluorochemical surfactant compositions are provided. The compositions comprise a fluorochemical amine salt which can be represented by the formula: ##STR1## wherein R.sub.f is a perfluoroaliphatic radical containing 3 to 20 carbon atoms, R is H or CH.sub.3, and R.sup.1 is an alkyl radical containing 1 to 4 carbon atoms. The fluorochemical surfactant compositions are prepared by reacting at least one perfluoroalkyl sulfonyl fluoride having 3 to 20 alkyl carbon atoms, ethylene or propylene oxide, and at least one tertiary amine, (R.sup.1).sub.3 N wherein R.sup.1 is an alkyl radical having 1 to 4 carbon atoms and which may contain a hydroxyl group.
    Type: Grant
    Filed: October 4, 1988
    Date of Patent: October 10, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Imelda A. Muggli
  • Patent number: 4873140
    Abstract: A coated article with a substrate having a low surface energy coating thereon, said coating comprising an in situ polymerized monofunctional poly(perfluoropropyleneoxy) acrylate or methacrylate oligomer. The oligomer has a poly(perfluoropropyleneoxy) segment, [CF(CF.sub.3)CF.sub.2 O].sub.d, which has a number average molecular weight of about 800 to 25,000.
    Type: Grant
    Filed: April 27, 1988
    Date of Patent: October 10, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Daniel K. McIntyre
  • Patent number: 4867881
    Abstract: A microporous article is provided. The article comprises a thermoplastic polymeric structure having a plurality of cells with adjacent cells being interconnected by passageways to provide a network of communicating pores. The structure is oriented in at least one direction.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: September 19, 1989
    Assignee: Minnesota Minning and Manufacturing Company
    Inventor: Kevin E. Kinzer
  • Patent number: 4863792
    Abstract: Multi-layer, microporous polyolefin sheet materials are provided. The sheet materials comprise at least two microporous polyolefin layers, the layers being autogenously bonded and having substantially the same porosity as prior to bonding.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: September 5, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: James S. Mrozinski
  • Patent number: 4857067
    Abstract: The back ears of a contoured disposable diaper are shirred to become stretchable and elastically retractable. Because of this, the diaper can be pulled snugly around the buttocks and the waist merely by applying ordinary fingertip pressure to the fastening tabs. The shirring can be provided by incorporating into the back ears of a flat diaper-forming blank a piece of heat-elasticizable material and then heating each diaper that is cut from the blank to shrink the piece. A preferred heat-elasticizable material comprises a substantially flat inelastic web to which is heat bonded a plurality of parallel elastomeric strands extended to at least about three times their relaxed length.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: August 15, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Leigh E. Wood, Anthony J. Zoia
  • Patent number: 4855184
    Abstract: Normally solid, organic solvent-soluble, thermoplastic, polyethylenically-unsaturated, cellulosic polyurethane polymers are provided. These cellulosic polyurethane polymers comprise one or more cellulose ether or ester segments, one or more alkylene moieties having at least two carbon atoms and which can be substituted or interrupted by ether oxygen atoms, ester groups, or phenylene groups, two or more residues of diisocyanates, the segments, moieties, and residues being linked together by linking groups with the proviso that said alkylene moieties contain sufficient ethylenic unsaturation that said polymer can be crosslinked to a solvent-insoluble state.
    Type: Grant
    Filed: February 2, 1988
    Date of Patent: August 8, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas P. Klun, David D. Lu, Aida F. Robbins