Patents Assigned to 3M
  • Patent number: 10533111
    Abstract: Compositions of matter described as urea (multi)-urethane (meth)acrylate-silanes having the general formula RA—NH—C(O)—N(R4)—R11—[O—C(O)NH—RS]n, or RS—NH—C(O)—N(R4)—R11—[O—C(O)NH—RA]n. Also described are articles including a substrate, a base (co)polymer layer on a major surface of the substrate, an oxide layer on the base (co)polymer layer; and a protective (co)polymer layer on the oxide layer, the protective (co)polymer layer including the reaction product of at least one urea (multi)-urethane (meth)acrylate-silane precursor compound. The substrate may be a (co)polymer film or an electronic device such as an organic light emitting device, electrophoretic light emitting device, liquid crystal display, thin film transistor, or combination thereof. Methods of making such urea (multi)-urethane (meth)acrylate-silane precursor compounds, and their use in composite films and electronic devices are also described.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: January 14, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Thomas P. Klun, Alan K. Nachtigal, Joseph C. Spagnola, Mark A. Roehrig, Jennifer K. Schnobrich, Guy D. Joly, Christopher S. Lyons
  • Patent number: 10525667
    Abstract: Fiber reinforced resin matrix composite laminates are provided comprising: at least one layer of fiber reinforced resin matrix comprising a cured resin matrix; and a surfacing construction bound to the cured resin matrix and forming a surface of the laminate, comprising: at least one barrier layer; and at least one cured adhesive layer derived from high temperature cure adhesive. In some embodiments, barrier layer(s) may be substantially impermeable to organic solvents, water, and/or gasses. In another aspect, fiber reinforced resin matrix composite laminates are provided comprising: a) at least one layer of fiber reinforced resin matrix comprising a cured resin matrix; and b) a surfacing construction bound to the cured resin matrix and forming a surface of the laminate, comprising: at least one barrier layer; and at least one electrically conductive layer. In another aspect, a surfacing construction is provided comprising a barrier layer and a curable adhesive layer.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: January 7, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Larry S. Hebert, Naiyong Jing, Michael D. Swan
  • Patent number: 10526440
    Abstract: A method of making a polymer network. The method includes providing a composition including a polythiol having more than one thiol group and a polyepoxide having more than one epoxide group, applying a solution including a photolatent base catalyst to a surface of the composition, and subsequently exposing the composition to light. Upon exposure to light, the photolatent base catalyst photochemically generates a first amine and at least partially cures at least the surface of the composition to form the polymer network.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: January 7, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jonathan D. Zook, Susan E. DeMoss, Sheng Ye, Andrew R. Davis, Tao Gong
  • Patent number: 10526250
    Abstract: The invention relates to boron nitride agglomerates, comprising lamellar, hexagonal boron nitride primary particles, which are agglomerated with one another with a preferred orientation, the agglomerates formed being flake-shaped. The invention also relates to a method for producing said boron nitride agglomerates, characterized in that lamellar, hexagonal boron nitride primary particles are agglomerated in such a way that they line up with one another with a preferred orientation. The flake-shaped agglomerates according to the invention are suitable as filler for polymers for making polymer-boron nitride composites and for hot pressing of boron nitride sintered compacts.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: January 7, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Martin Engler, Krishna Uibel, Jens Eichler
  • Patent number: 10526635
    Abstract: An article for detecting Salmonella microorganisms is provided. The article comprises a highly selective nutrient medium and a plurality of indicator systems. A method of using the article to detect Salmonella microorganisms is also provided.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: January 7, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Patrick A Mach, Mara S. Celt
  • Patent number: 10527857
    Abstract: A viewing device is disclosed. The device includes a projector that projects a first imaged light, and a polarizing beam splitter plate that receives the projected first imaged light from the projector and reflects the received first imaged light for viewing by a viewer. The polarizing beam splitter plate also receives a second image and transmits the second image for viewing by the viewer. The polarizing beam splitter plate includes a substrate and a multilayer optical film reflective polarizer that is adhered to the substrate. The reflective polarizer substantially reflects polarized light having a first polarization state and substantially transmits polarized light having a second polarization state perpendicular to the first polarization state. The polarizing beam splitter plate includes a first outermost major surface and an opposing second outermost major surface that makes an angle of less than about 20 degrees with the first outermost major surface.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: January 7, 2020
    Assignee: 3M Innovative Property Company
    Inventors: Andrew J. Ouderkirk, Max Powers
  • Patent number: 10529073
    Abstract: A method for determining virtual articulation from dental scans. The method includes receiving digital 3D models of a person's maxillary and mandibular arches, and digital 3D models of a plurality of different bite poses of the arches. The digital 3D models of the maxillary and mandibular arches are registered with the bite poses to generate transforms defining spatial relationships between the arches for the bite poses. Based upon the digital 3D models and transforms, the method computes a pure rotation axis representation for each bite pose of the mandibular arch with respect to the maxillary arch. The virtual articulation can be used in making restorations or for diagnostic purposes.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: January 7, 2020
    Assignee: 3M INNOVATION PROPERTIES COMPANY
    Inventors: Alberto Alvarez, Eric S. Hansen, Steven C. Demlow, Richard E. Raby
  • Patent number: 10526503
    Abstract: A fluoropolymer coating composition is described comprising an aqueous liquid medium, fluoropolymer particles dispersed in the aqueous liquid medium, and at least one aziridine compound. The aziridine compound comprises at least two aziridine groups (i.e. polyaziridine) or at least one aziridine group and at least one alkoxy silane group. In another embodiment, an article is described comprising a substrate wherein a surface of the substrate comprises a coating comprising fluoropolymer particles; and a reaction product of at least one aziridine compound comprising at least two aziridine groups or at least one aziridine group and at least one alkoxy silane group. The coating can be utilized as a primer for bonding a non-fluorinated substrate to a fluoropolymer film and/or the coating can be used as an (e.g. outer exposed) surface layer. In some embodiments, the article may be the (e.g. backside) film of a photovoltaic module.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: January 7, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Naiyong Jing, Kevin M. Hamer, Jeffrey A. Peterson, Thomas J. Blong, Timothy D. Fletcher, Michael Juergens, Mark W. Muggli, Gezahegn D. Damte
  • Patent number: 10526535
    Abstract: The present disclosure provides a liquid quantum dots composite that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal or quantum dots); a first polyamine ligand and a second polythiol ligand attached to the core/shell nanoparticle outer surface. At least one of the polythiol and polyamine ligands are silicone ligands.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: January 7, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Zai-Ming Qiu, Joseph M. Pieper
  • Patent number: 10526515
    Abstract: A halogen-free flame retardant adhesive comprises an acrylic copolymer preparable by polymerization of monomers comprising a first monomer which comprises a low glass transition temperature (Tg) monomer, a second monomer which comprises a high Tg monomer, wherein at least one of the first and second monomers comprises a (meth)acrylate, and a phosphinate containing monomer.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: January 7, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Eumi Pyun, Dennis E. Vogel, Thu-Van Tran, Tabitha A. Clem, Haohao Lin, William H. Moser, Anthony R. Plepys, Richard B. Ross
  • Patent number: 10526366
    Abstract: Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: January 7, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Jerald K. Rasmussen, Kannan Seshadri, Robert T. Fitzsimons, Jr., James I. Hembre, Catherine A. Bothof, Erin A. Satterwhite, George W. Griesgraber, Yi He, Louis C. Haddad
  • Publication number: 20200000427
    Abstract: Aspects of the present disclosure relate to a method of making a one piece diaphragm. The method includes providing a tool die, providing a disc formed from a first material, positioning the disc within an injection mold, providing a second material; heating the second material. The method includes melt molding the second material into the tool die and around a peripheral edge of the disc to form the one piece diaphragm comprising a rim, and removing the one piece diaphragm from the injection mold.
    Type: Application
    Filed: July 23, 2019
    Publication date: January 2, 2020
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Joseph P. Keller, Dean Sitz, Mary Jo Johnson
  • Patent number: 10518512
    Abstract: A method of forming a transfer film is described. The transfer film includes a template layer having a first major surface and an opposing second major surface. The second major surface includes a structured non-planar release surface. A backfill layer is disposed upon and conforms to the non-planar structured surface. The backfill layer includes a first cross-linked polymer and a plurality of multifunctional monomers, which cure via different and independent curing mechanisms.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: December 31, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Evan L. Schwartz, Shijing Cheng, Claire Hartmann-Thompson
  • Patent number: 10519350
    Abstract: A copolymer that includes first divalent units having a pendent ultraviolet absorbing group, second divalent units represented by formula (I):, and third divalent units represented by formula (II):. Each R1 is independently hydrogen or methyl; R2 is a straight-chain or branched alkyl having from 1 to 20 carbon atoms; V is O or NH; W is alkylene having from 1 to 10 carbon atoms; and each R? is independently alkyl having from 1 to 6 carbon atoms. Compositions including the copolymer, for example, pressure sensitive adhesive compositions are disclosed. Articles including the compositions are disclosed. For example, an assembly including a barrier film and the pressure sensitive adhesive composition is also disclosed.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: December 31, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: David B. Olson, Diane North, Patricia M. Savu, Eric M. Peterson
  • Patent number: 10520684
    Abstract: An optical ferrule adapted to receive and transmit light is described. The optical ferrule includes first and second alignment features for mating with corresponding alignment features of a mating optical ferrule. One of the first and second alignment features may be compressible, expandable or compliant. An optical ferrule having first and second alignment features is described, wherein the ferrule is adapted such that the mating/unmating to/from a corresponding ferrule can be effected along two orthogonal dimensions of the ferrule. Additionally an optical ferrule having first and second alignment features is described, wherein the first and second alignment features are located at substantially different first and second locations/contact regions along the ferrule mating direction; the contact regions may also be offset along the thickness direction of the ferrule.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: December 31, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Michael A. Haase, Alexander R. Mathews, Terry L. Smith
  • Patent number: 10518519
    Abstract: A laminate of an at least partially reticulated thermoplastic film joined to an extensible carrier. The reticulated thermoplastic film includes a backing with openings and discrete elements protruding from the first major surface. There are two discrete elements aligned in a first direction abutting opposite ends of any given opening. In a second direction perpendicular to the first direction, there is one discrete element between the given opening and an adjacent opening aligned in the second direction. Each portion of the thermoplastic backing around the given opening is plastically deformed in its lengthwise direction. A method of making a laminate is also disclosed. The method includes stretching a thermoplastic backing having a plurality of discrete elements in the first direction and laminating the backing to an extensible carrier. Subsequently stretching the laminate in a second direction forms a tear in the thermoplastic backing between two adjacent of the discrete elements.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: December 31, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Neelakandan Chandrasekaran, Thomas P. Hanschen, Timothy P. Pariseau
  • Patent number: 10520655
    Abstract: Glazing articles that reduce glare include a glazing substrate, and a reflective polarizing film article attached to the glazing substrate. The reflective polarizing film article includes a reflective polarizing film, and a reflection inhibitor layer. The reflective polarizing film articles reduce transmission of polarized light with a polarization block axis that is horizontal, and reduce horizontally polarized light to 90% or less of the horizontally polarized incident visible light. The reflective polarizing film may include a multi-layer film construction. The reflection inhibitor layer may include a tinted layer or an absorptive polarizer layer. Glazing units that reduce glare include at least one glazing substrate, at least one reflective polarizing film, and at least one reflection inhibitor layer. The glazing substrate, reflective polarizing film, and reflection inhibitor layer may or may not be in contact with one another.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: December 31, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bert T. Chien, Yufeng Liu, Kristopher J. Derks, Raghunath Padiyath, Stephen J. Strauss
  • Patent number: 10518388
    Abstract: A coated abrasive article maker apparatus including a first web path guiding a production tool such that it wraps a portion of the outer circumference of an abrasive particle transfer roll; a second web path for a resin coated backing guiding the resin coated backing such that it wraps a portion of the outer circumference of the abrasive particle transfer roll with the resin layer positioned facing the dispensing surface of the production tool this is positioned between the resin coated backing and the outer circumference of the abrasive particle transfer roll; and wherein abrasive particles are transferred from cavities in the production tool to the resin coated backing as the resin coated backing and the production tool traverse around the abrasive particle transfer roll.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: December 31, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Scott R. Culler, John T. Boden, Steven J. Keipert, Negus B. Adefris, Karan Jindal, Aaron K. Nienaber, David L. Morrison, Peter T. Benson, Pratik Pranay, Bradford B. Wright
  • Patent number: 10519366
    Abstract: Described is a quantum dot film article comprising a quantum dot of a cured thiol-epoxy matrix. The matrix formulations resist ingress from water and/or oxygen, while also providing acceptable color stability upon aging.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: December 31, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Zai-Ming Qiu, Joseph M. Pieper
  • Patent number: D872853
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: January 14, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Adam J. Stuart, Stephen J. Howgill, Peter D. Hodson