Patents Assigned to 3M
  • Methods of making extensible barrier films
    Patent number: 11518080
    Abstract: There is provided a method of making a curved barrier film, including: depositing a barrier layer between a first organic layer and a second organic layer to form a barrier film; and thermoforming or vacuum-forming the barrier film from a flat barrier film to a curved barrier film; wherein the barrier film includes the barrier layer having two opposing major surfaces, wherein the barrier layer includes buckling deformations and non-buckling regions; the first organic layer in direct contact with one of the opposing major surfaces of the barrier layer; and the second organic layer in direct contact with the other of the opposing major surfaces of the barrier layer.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: December 6, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: David J. Rowe, Christopher S. Lyons, Kevin W. Gotrik, Gregg A. Ambur
  • Optical device
    Patent number: 11520110
    Abstract: A first optical device is adapted to couple to a second optical device along a coupling direction and includes two spaced apart pairs of leading and trailing pads, such that when the first optical device lands and slides on a landing surface of the second optical device to optically couple to the second optical device, and for each pair of leading and trailing pads, the leading pad prevents any debris on the landing surface from collecting on the trailing pad. Upon full coupling of the first optical device with the second optical device, the leading pads do not make contact with the landing surface. The first optical device may be, for example, an optical ferrule or a cradle having a recess adapted to receive an optical ferrule.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: December 6, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael A. Haase, James M. Nelson, Terry L. Smith
  • Removable dental appliance including spring bellows
    Patent number: 11517401
    Abstract: A removable dental appliance may include an appliance body at least partially surrounding two or more teeth of a patient. The appliance body may include a first shell shaped to receive a first tooth; a second shell shaped to receive a second tooth; and at least one spring bellows that includes an arcuate displacement extending over and away from at least a portion of an interproximal region between the first tooth and the second tooth to join the first shell and the second shell. The spring bellows is configured to apply a force between the first shell and the second shell to cause movement of at least one of the first tooth and the second tooth toward a desired position when the removable dental appliance is worn by the patient.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: December 6, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Richard E. Raby, Chaodi Li, Michael K. Domroese
  • Pressure sensitive adhesive assembly comprising filler material
    Patent number: 11518914
    Abstract: The present disclosure relates to a pressure sensitive adhesive assembly comprising at least a first pressure sensitive adhesive layer comprising a hollow non-porous particulate filler material, wherein the surface of the hollow non-porous particulate filler material is provided with a hydrophobic surface modification. The present disclosure also relates to a method of manufacturing such a pressure sensitive adhesive assembly.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: December 6, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Jan Heimink, Kerstin Unverhau, Jan D. Forster, Jan U. Wieneke, Frank Kuester, Siegfried R. Goeb, Doreen Eckhardt, Regina Sikora, Ruchi Pandey, Suresh S. Iyer
  • Respirator headband
    Patent number: 11517775
    Abstract: A personal respiratory protection device comprising a main body having a headband attachment portion, a headband attached to the headband attachment portion by a headband bond module, wherein the module includes first and second non-woven tabs adhesively bonded to opposing sides of an end of the headband, the side of the first tab opposing the headband bond side being welded to the main body.
    Type: Grant
    Filed: December 5, 2015
    Date of Patent: December 6, 2022
    Assignee: 3M Innovative Properties Company
    Inventor: Christopher P. Henderson
  • Application device with redox initiator system, method of production and use thereof
    Patent number: 11510851
    Abstract: The invention relates to an application device with a handle part and an application part, the application part having a surface onto which a redox initiator system is located, the redox initiator system comprising either hydrophilic oxidizing agent(s) and hydrophobic reducing agent (s), or hydrophobic oxidizing agent(s) and hydrophilic reducing agent(s). The invention also relates to a kit comprising the application device, a method of producing the application device and a method or curing a curable composition using the application device.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: November 29, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Christoph H. Thalacker, Henry Loll
  • Air and water barrier article with porous layer and liner
    Patent number: 11512463
    Abstract: There is provided an article that includes a polymeric layer disposed on and covering a first major surface of an porous layer, an adhesive layer disposed on a second major surface of the elastic layer opposite the polymeric layer; and a liner disposed on a major surface of the polymeric layer opposite the first major surface of the elastic layer. The polymeric layer and the porous layer together form an air and water barrier that is water vapor permeable. The liner is water vapor impermeable. In a preferred embodiment the polymeric layer comprises a polyoxyalkylene polymer having at least one end group derived from an alkoxy silane. A method of applying the article to a surface of a building component is also provided.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: November 29, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Martin J. Widenbrant, Taylor M. Seabaugh, Daniel R. Fronek, Rajan B. Bodkhe
  • Hyperspectral optical patterns on retroreflective articles
    Patent number: 11514659
    Abstract: In some examples, a retroreflective article may include a retroreflective substrate, and an optical pattern embodied on the retroreflective substrate. The optical pattern may include a first optical sub-pattern and a second optical sub-pattern, wherein the optical pattern represents a set of information that is interpretable based on a combination of the first optical sub-pattern that is visible in a first light spectrum and the second optical sub-pattern that is visible in a second light spectrum. The first and second light spectra may be different.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: November 29, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: John A. Wheatley, Susannah C. Clear
  • Muscle or joint support article with a strap
    Patent number: 11510804
    Abstract: The present application generally relates to support articles and methods of making and using them. The support articles of the present disclosure provide compression and/or stabilization of sore joints of muscles. In some embodiments, the compression and/or enhanced stabilization is provided, at least in part, by one or more straps. In some embodiments, the support articles also include one or more reinforcing portions. In some embodiments, the support articles can easily be applied by a non-trained user and can be worn in many conditions (including, for example, in the shower or during exercise) for up to three days. The support articles have a relatively slim profile and are thus discreet such that they can be worn under clothing without being noticeable.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: November 29, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Diane L. Emslander, Dominic J. Julian, Nathan A. Abel
  • High performance photocurable optically clear adhesive
    Patent number: 11511522
    Abstract: The present invention is an optically clear, curable adhesive including a polyvinylbutyral, a polyurethane (meth)acrylate, a (meth)acrylate monomer, and a photoinitiator. The polyvinylbutyral has a dynamic viscosity of between about 9 and about 13 mPa·s and a polyvinyl alcohol weight percent of less than about 18%. The polyurethane (meth)acrylate includes the reaction product of a diol, at least one diisocyanate, and a hydroxyfunctional (meth)acrylate or an isocyanatofunctional (meth)acrylate. When the optically clear, curable adhesive is placed between two transparent substrates and made into a laminate, the laminate has a haze of less than about 6%, a transmission of greater than about 88%, and an optical clarity of greater than about 98% when cured. The optically clear, curable adhesive also has a peel adhesion of at least about 100 g/cm based on ASTM 3330 when cured.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: November 29, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Lan Hong Liu, Jianhui Xia, Thomas P. Klun, David A. Kowitz, Audrey A. Sherman
  • Web with adhesive layer having partially embedded filaments
    Patent number: 11512228
    Abstract: An adhesive-backed film with an adhesive layer having thermoplastic or thermoset filaments partially projecting therefrom, to promote fluid egress and repositionability.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: November 29, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: James P. Endle, Frank T. Sher, Patrick J. Yeshe
  • Wipe with a guanidinyl-containing polymer
    Patent number: 11505769
    Abstract: A wipe article includes a substrate, a cationic coating disposed on a surface of the substrate, distributed throughout the substrate, or both. The cationic coating contains a guanidinyl-containing polymer that is crosslinked and bound to the substrate. The substrate includes sponge, nonwoven fabric, or woven fabric. The wipes are useful for removing microorganisms from a microorganism-contaminated surface and also for reducing re-contamination of the cleaned surface or transfer to another surface of the removed microorganisms.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: November 22, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Steven P. Swanson, Jerald K. Rasmussen, George W. Griesgraber, Andrew W. Vail, Andrew S. Waller
  • Compositions and methods of making a polymerized composition
    Patent number: 11505653
    Abstract: A composition comprising at least one terminally-unsaturated diarylsulfide compound represented by the formula: wherein each R represents an allyl group or a propargyl group. The composition may further comprise an organic polythiol, and optionally a free-radical initiator, and may be formulated as a two-part polymerizable composition. Methods of polymerizing the compositions are also disclosed.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: November 22, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Wayne S. Mahoney, Saswata Chakraborty, Guy D. Joly, Jonathan A. Anim-Addo
  • Optical film stack including retardation layer
    Patent number: 11506926
    Abstract: Optical film stacks are described. More particularly, optical film stacks including a half-wave retardation layer are described. Achromatic half-wave retardation layers, including achromatic half-wave layers formed from a quarter-wave and a three-quarters-wave retardation layer, are described. Film stacks including reflective polarizers tuned to reduce wavelength dispersion of the half-wave retardation layer are also described.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: November 22, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Sun-Yong Park, Song-Geun Lee, Matthew B. Johnson, Adam D. Haag
  • Adaptive electronic hearing protection device
    Patent number: 11504278
    Abstract: An electronic hearing protection device is provided. The electronic hearing protection device includes an amplifier and a speaker to relay sounds, such as conversations, to the user of the hearing protection. The hearing protection device provides adaptive gunshot recognition and suppression technology.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: November 22, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Oscar M. Hemberg, Eric O. Hemberg, Henrik M. Fransson, Gregory G. Jager, Douglas D. Fletcher
  • Fall-protection apparatus comprising friction brake
    Patent number: 11504557
    Abstract: A non-motorized fall-protection apparatus, comprises a drum, and a rotationally-activated braking device that comprises at least one pawl and at least one ratchet with at least one tooth that is engagable by an engaging end of the at least one pawl, wherein the rotationally-activated braking device comprises a limited-use, constant-contact friction brake comprising at least one layer of friction material with a friction-braking surface and at least one rotatable member with a contact surface that is in contact with the friction-braking surface of the layer of friction material.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: November 22, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Michael A. Boraas, Keith G. Mattson
  • Block copolymers with a polydiorganosiloxane block and a phosphate or phosphonate containing block
    Patent number: 11505637
    Abstract: A block copolymer is provided that includes a first block having pendant phosphate and/or phosphonate groups and a second block that contains pendant poly(dialkylsiloxane) groups. Compositions containing the block copolymer as well as articles that include the block copolymer are also provided. The block copolymer can be used to provide a surface that is easy to clean and/or that is resistant to oil and grease without the use of fluorinated materials.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: November 22, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Semra Colak Atan, Federica Sgolastra, George W. Griesgraber
  • Tetrahedral abrasive particles in abrasive articles
    Patent number: 11505730
    Abstract: Various embodiments disclosed relate to an abrasive article (10). The abrasive article (10 includes a backing (12) defining a major surface. The abrasive article (10) includes an abrasive layer including a plurality of tetrahedral abrasive particles (16) attached to the backing (12). The tetrahedral abrasive particles (16) include four faces joined by six edges terminating at four vertices (40, 42, 44, 46). Each one of the four faces contacts three of the four faces, and a major portion of the tetrahedral abrasive particles (16) have at least one of the vertices (40, 42, 44, 46) oriented in substantially a same direction.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: November 22, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Laura M. Lara Rodriguez, Chainika Jangu, Scott R. Culler, Negus B. Adefris, Gregory S. Mueller, Jon T. Schwartz, Brian G. Koethe, Robinette S. Alkhas, Ronald D. Apple, Ernest L. Thurber
  • Extended sheet
    Patent number: D971019
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: November 29, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Thomas R. Corrigan
  • Container lid
    Patent number: D971729
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: December 6, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Anna M. Hegdahl, Brett A. Howell, William P. Atwood, Jade L. Perren, Ryan D. Erickson, Steven J. Tarnowski, Stephen C. P. Joseph, Mark S. Menzenski, Sean M. Cory, Dean E. Sitz