Patents Assigned to 3M
  • Primer composition and articles made therefrom
    Patent number: 10640656
    Abstract: There are provided primer compositions comprising a primer component comprising: a rubber; an amine-functional (meth)acrylic resin; and a plasticizer. There are also provided articles made using these primer compositions.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: May 5, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Dean M. Moren, David T. Amos
  • Near-eye display system having a pellicle as a combiner
    Patent number: 10642044
    Abstract: Near-eye combiner displays are disclosed that utilize dichroic reflectors and/or reflective polarizers disposed as a pellicle positioned within a field of view of the eye. A secondary image can be reflected off of the reflective polarizer and/or dichroic layer towards the eye, and can be superimposed over a primary world-view image being viewed by the eye. The position and orientation of the pellicle can be independently adjusted as desired.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: May 5, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew J. Ouderkirk, Timothy L. Wong
  • Anti-microbial articles and methods of using same
    Patent number: 10639395
    Abstract: An article having anti-microbial effect is provided. The article includes an occlusive layer; a substrate having two opposing major surfaces, wherein one opposing major surface is a nanostructured surface; a metal oxide layer, wherein the nanostructured surface is coated with the metal oxide layer and the metal oxide layer comprises a metal oxide; and a metal layer overlaying the metal oxide layer.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: May 5, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Ta-Hua Yu, Döne Demirgöz, Junkang J. Liu, Badri Veeraraghavan, Narina Y. Stepanova
  • Composition comprising surface modified high index nanoparticles suitable for optical coupling layer
    Patent number: 10644267
    Abstract: Presently described is a method for coupling an optical film to a substrate, laminated optical constructions comprising an optical film and an optical coupling layer disposed on a surface layer of the optical film, and coating compositions useful for optical an optical coupling layer. The coating compositions comprise at least 40 wt.-% inorganic nanoparticles having a refractive index of at least 1.85 and a polymeric silane surface treatment.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: May 5, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Encai Hao, Jonathan A. Anim-Addo, Guy D. Joly, Sergey Lamansky, James P. DiZio
  • Systems and methods for sample concentration and detection
    Patent number: 10639628
    Abstract: Systems and methods for concentrating a sample and detecting an analyte of interest. The system can include a sample detection container that can include a microcavity. The microcavity can include a top opening, a base, and a longitudinal axis. The container can further include a wall that extends to the microcavity, wherein at least a portion of the wall located adjacent the top opening of the microcavity has a slope that is oriented at an effective angle ? with respect to the longitudinal axis of the microcavity. The effective angle ? can be greater than 45 degrees and less than 90 degrees, and at least the portion of the wall located adjacent the top opening of the microcavity that is oriented at the effective angle ? can have a length of at least 5 times a transverse dimension of the microcavity.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 5, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Raj Rajagopal, Kurt J. Halverson, Shawn C. Dodds, Ramasubramani Kuduva Raman Thanumoorthy
  • Acrylic-based flexible assembly layer
    Patent number: 10640689
    Abstract: The present invention is an assembly layer for a flexible device. The assembly layer is derived from precursors that include an alkyl(meth)acrylate ester having 1 to 24 carbon atoms in the alkyl group and a free-radical generating initiator. Within a temperature range of between ?30° C. to 90° C., the assembly layer has a shear storage modulus at a frequency of 1 Hz that does not exceed 2 MPa, a shear creep compliance (J) of at least 6×10?6 1/Pa measured at 5 seconds with an applied shear stress between 50 kPa and 500 kPa, and a strain recovery of at least 50% at at least one point of applied shear stress within the range of 5 kPa to 500 kPa within 1 minute after removing the applied shear stress. In a preferred embodiment, the flexible device is a flexible electronic display.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 5, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Ross E. Behling, Jason D. Clapper, Albert I. Everaerts, Belma Erdogan-Haug
  • Systems and methods for sample concentration and detection using a separation liquid
    Patent number: 10639629
    Abstract: Systems and methods for concentrating a sample and detecting an analyte of interest using a separation liquid. The system can include a sample detection container that can include a microcavity. The microcavity can include a concentrate of a sample resulting from centrifugation of the sample. The container can further include a separation liquid located between the microcavity and a supernatant of the sample located outside of the microcavity. The separation liquid can have a density greater than that of the supernatant of the sample, and an interfacial tension with the supernatant of at least 0.05 N/m. The separation liquid can be non-toxic and inert. The method can include adding the separation liquid to the sample detection container, after centrifuging the sample detection container, to displace the supernatant located outside of the microcavity from the microcavity.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 5, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Raj Rajagopal, Kurt J. Halverson
  • Polymeric materials formed using controlled radical initiators
    Patent number: 10640687
    Abstract: Controlled radical initiators, reaction mixtures containing the controlled radical initiators and various ethylenically unsaturated monomers, polymeric materials formed from the reaction mixtures, crosslinkable compositions containing the polymeric materials, and crosslinked compositions formed from the crosslinkable compositions are provided. The controlled radical initiators are bis-dithiocarbamate or bis-dithiocarbonate compounds having a single carbon between the two dithiocarbamate or dithiocarbonate groups.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: May 5, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Babu N. Gaddam, Stephen B. Roscoe, John L. Battiste
  • Systems and methods for rule-based content generation
    Patent number: 10642902
    Abstract: At least one aspect of the present disclosure directs to a content generation system including a content generation module and a rule management module. The rule management module is adapted to receive a plurality of rules on content generation. The content generation module is adapted to generate a content configuration, wherein the content configuration comprises a plurality of content elements and one or more relationships among the plurality of content elements, wherein the one or more relationships are in accordance with the plurality of rules on content generation.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: May 5, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Frederick J. Arsenault, Brian E. Brooks
  • Pressure sensitive adhesive assembly suitable for bonding to uneven substrates
    Patent number: 10633495
    Abstract: The present disclosure relates to a pressure sensitive adhesive assembly suitable for bonding to a substrate provided with an uneven surface, wherein the pressure sensitive adhesive (PSA) assembly comprises a polymeric foam layer comprising a polymeric base material, and having a complex viscosity comprised between 2,000 Pa·s to 80,000 Pa·s, when measured at 120° C. according to the test method described in the experimental section. The present disclosure is also directed to a method of applying a pressure sensitive adhesive assembly to a substrate provided with an uneven surface, and uses thereof.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: April 28, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jan Heimink, Kerstin Unverhau, Andreas Backes, Adrian T. Jung, Dirk Hasenberg
  • Lightguide with various shapes and extracting structures
    Patent number: 10634837
    Abstract: Lightguides that include a plurality of discrete spaced apart light extracting structures are described. Each light extracting structure includes opposing inclined first and second sidewalls extending from a first side of the lightguide toward an optical axis of the light guide and meeting at an elongated peak extending along a first direction substantially perpendicular to the optical axis, and may include opposing first and second endwalls extending between the first and second sidewalls from the first side of the lightguide to the elongated peak to form a notch extending into a core of the lightguide. The first and second sidewalls are adapted to extract light propagating along the lightguide from an opposite second side of the lightguide by reflecting the propagating light toward the second side. The notch may have raised edges along at least a portion of a perimeter of the notch.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: April 28, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Tao Liu, Brent A. Hedding, David C. Mercord, Brian W. Ostlie
  • Wide band semi-specular mirror film incorporating nanovoided polymeric layer
    Patent number: 10634832
    Abstract: Low loss, high reflectivity wide band mirror films provide a desired mix of specular reflection and diffuse reflection or scattering to provide semi-specular reflectivity. The mirror films generally include both a specularly reflective multilayer optical film (MOF) having a wide reflection band, and a scattering layer. In some cases a low refractive index TIR layer is sandwiched between the MOF and the scattering layer. In other cases the scattering layer contacts the MOF directly. In embodiments that include the TIR layer, the TIR layer preferably has a nanovoided morphology and includes a plurality of particles and a polymer binder. In embodiments wherein the scattering layer contacts the MOF directly, the scattering layer preferably also has a nanovoided morphology and includes a plurality of particles and a polymer binder.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: April 28, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: William D. Coggio, William B. Black, Michael F. Weber, Huiwen Tai
  • Method of detecting a microorganism using chromatographic enrichment
    Patent number: 10634672
    Abstract: A device is provided. The device comprises a casing comprising an interior, a first opening, and a second opening; and a porous carrier comprising a sample-receiving zone and a target cell-binding zone. The porous carrier defines a first fluid pathway that extends from the sample-receiving zone to the target cell-binding zone. At least portion of the porous carrier is disposed in the interior of the casing. A second fluid pathway comprising a central axis extends through the casing from the first opening and the second opening, the second fluid pathway intersecting the porous carrier at the target cell-binding zone. The central axis is oriented orthogonally with respect to the porous carrier. Methods of using the device to detect a target microorganism are also provided.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: April 28, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Neil Percy, Gregory W. Sitton
  • Multilayer structural adhesive film
    Patent number: 10632707
    Abstract: The invention relates to the use of a structural adhesive film for bonding and sealing a hem flange connection between panels. The structural adhesive film comprises at least one adhesive layer and at least one layer with a porous structure. The adhesive layer comprise an epoxy compound as well as an epoxy curing agent.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: April 28, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Elisabeth Cura, Sohaib Elgimiabi, Stefan Luebbe, Kotaro Shinozaki, Saori Ueda
  • Barrier film, method of making the barrier film, and articles including the barrier film
    Patent number: 10636920
    Abstract: A barrier film that includes a substrate, a first polymer layer on a major surface of the substrate, an oxide layer on the first polymer layer, and a second polymer layer on the oxide layer. At least one of the first or second polymer layers includes a siloxane reaction product of a secondary or tertiary amino-functional silane having at least two silane groups. A method of making the barrier film and articles and a barrier assembly including the barrier film are also disclosed.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: April 28, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Joseph C. Spagnola, Mark A. Roehrig, Thomas P. Klun, Alan K. Nachtigal, Jennifer K. Schnobrich, Guy D. Joly
  • Systems and methods for coordinating signal injections to understand and maintain orthogonality among signal injections patterns in utility grids
    Patent number: 10637238
    Abstract: Methods and systems for implementing experimental trials on utility grids. The variation of grid parameters are coordinated to create periods of time and areas of space from within which the variations of grid parameters do not overlap, allowing sensor data within those periods of time and areas of space to be associated with particular variations in grid parameters. This associated data can in turn be used to improve models of sensor response and utility grid behavior.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: April 28, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Brian E. Brooks, Yang Lu, Andrew T. Tio, Gilles J. Benoit
  • METHOD FOR MANUFACTURING SHEET LAMINATE, MOLD FOR MOLDING SHEET LAMINATE, AND SHEET LAMINATE
    Publication number: 20200122383
    Abstract: A method for manufacturing a sheet laminate to be affixed to an adherent surface of an object, the method comprising preparing a sheet member having a front surface to become a design surface and a rear surface on which an adhesive part has been formed, bending an edge part of the sheet member by sandwiching the sheet member from a front surface side and a rear surface side in a mold, and heating a part of a bent sheet member. The sheet laminate has a flat part spreading out in a flat plate shape, a side surface on which the edge part bent by the bending step is configured, and a connecting surface protruding and curving toward the front surface side between the flat part and the side surface, and in the heating step, the connecting surface is partially heated after the side surface is molded in the bending step.
    Type: Application
    Filed: December 19, 2017
    Publication date: April 23, 2020
    Applicant: 3M Innovative Properties Company
    Inventor: Ken EGASHIRA
  • Fixing member and absorbent article
    Patent number: 10624800
    Abstract: A fixing member including a sheet-like base member 21 and a surface fastener 30 provided on the base member 21 is disclosed. The surface fastener 30 covers a surface of the base member 21 at a position separated from a tip end 21E1 of the base member 21 in a wrap-around direction, and minimum bending stiffness of the fixing member 20 as determined via a bending test using a Gurley tester being 150 mgf or less when measured using a test piece cut from a portion where the surface fastener 30 is provided. The surface S1 on the surface fastener 30 side of the portion 21a on the tip end 21E1 side of the surface fastener 30 of the base member 21 is a surface with reduced engagement with the surface fastener 30.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: April 21, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Yoshihisa Matsuda, Kristopher K. Biegler, Ryan M. Luepke, Thomas J. Gilbert, Hiroshi Sakurai
  • Valve cover
    Patent number: D882758
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: April 28, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Philip D. Eitzman, Thomas J. Xue
  • Task light protection plate for a welding helmet
    Patent number: D882878
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: April 28, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Martin A. J. M. Berggren, Oskar E. Juhlin