Patents Assigned to 3M
  • Patent number: 12176139
    Abstract: A magnetic film includes iron and copper distributed between opposing first and second major surfaces of the magnetic film. The copper has a first atomic concentration C1 at a first depth d1 from the first major surface and a peak second atomic concentration C2 at a second depth d2 from the first major surface, d2>d1, C2/C1?5.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: December 24, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Seong-Woo Woo, Jung Ju Suh, Charles L. Bruzzone, Jennifer J. Sokol, Sergei A. Manuilov
  • Patent number: 12173153
    Abstract: A dual-molded silicone-polyamide composite article including a first molded piece that comprises a blend of polyamide and an ethylene-vinyl alcohol copolymer and a second molded piece that comprises a thermoset, hydrosilylation-cure silicone polymer. A portion of a surface of the second molded piece is autogenously bonded to a portion of a surface of the first molded piece.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: December 24, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Ramnath Subramaniam, Joseph S. Warner, Michael J. Svendsen, David M. Castiglione
  • Patent number: 12169310
    Abstract: An optical ferrule includes an optical coupling member with a light redirecting element that redirects input light from a waveguide toward an output window. The optical coupling member has a mating surface configured to slidably mate with a mating optical coupling member along a longitudinal axis of the optical ferrule. The optical ferrule also includes at least one stacking member along a longitudinal edge of the optical coupling member. The stacking member has a distal end extending beyond one of the mating surface and a top surface opposed to the mating surface. The stacking member also has a contact surface opposed to the distal end. The contact surface is configured to rotatably interface with a corresponding distal end of a of an adjacently stacked optical ferrule.
    Type: Grant
    Filed: January 20, 2023
    Date of Patent: December 17, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael A. Haase, Terry L. Smith
  • Patent number: 12168647
    Abstract: Described herein are compounds according to Formula (I) wherein Rf is a perfluorinated divalent group comprising 2 to 12 carbon atoms; and Z is selected from —CH?CH2, and —CH2CH?CH. A method of making the compound from a functionalized vinyl ether and ammonia is disclosed. In one embodiment, the functionalized triazine-containing compound is used in the polymerization of a fluoropolymer. In another embodiment, the functionalized triazine-containing compound is used in a curable fluoropolymer composition and cured to form articles.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: December 17, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Michael H. Mitchell, Tatsuo Fukushi, Miguel A. Guerra, Zai-Ming Qiu, Justin T. Roop
  • Patent number: 12168150
    Abstract: In some examples, a system includes an article of personal protective equipment (PPE) that includes a communication component; an industrial controller device that is configured to control an industrial device and includes a communication component; and a computing device communicatively coupled to the article of PPE and the industrial controller device, wherein the computing device is configured to: receive PPE data from the article of PPE and industrial controller data from the industrial controller device; determine, based at least in part on a set of the PPE data that temporally corresponds to a set of the industrial controller data, an occurrence of a safety event; and perform, based at least in part on the determination of the safety event, at least one operation.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: December 17, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Steven T. Awiszus, Michael G. Wurm, David R. Stein, Johannes P. M. Kusters
  • Patent number: 12168743
    Abstract: Various embodiments disclosed relate to a surfacing film. The surfacing film includes a base layer. The base layer includes a thermoplastic polyurethane film comprising a reaction product of a reaction mixture of a diisocyanate, a polyester polyol having a melting temperature of at least about 30° C.; and a diol chain extender. There are many reasons to use the surfacing film including easier and more cost effective manufacturing of the surfacing film by directly extruding the base layer by mixing the reaction mixture in an extruder. Another reason to use the surfacing film is that the film has improved resistance to discoloration. Another reason to use the film is that the film shows good toughness.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: December 17, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Charlie Chia-Tie Ho, Yongshang Lu, John J. Jaros, Jay M. Jennen, Ryan M. Braun, Sean P. Addison, Trevor A. Larson, Ricky L. Nelson, Robert D. Hamann
  • Patent number: 12168564
    Abstract: The present disclosure relates generally to tension-activated, expanding articles, films, and sheets including a multi-slit pattern. In some embodiments, these articles, films, and/or sheets are used as cushioning films and/or packaging materials. The present disclosure also relates to methods of making and using these tension-activated, expanding articles, films, and sheets.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: December 17, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas R. Corrigan, Patrick R. Fleming, Anne C. F. Gold, Silvia G. Guttmann, Nicholas K. Lee, Dylan T. Cosgrove, Delony L. Langer-Anderson, Lisa M. Miller, Manoj Nirmal
  • Patent number: 12168243
    Abstract: A system includes a robot, a measuring device, and a processor. The robot is configured to dispense, based on at least one process parameter, a liquid adhesive bead onto a substrate. The measuring device is configured to measure at least one characteristic of the bead shape. The processor is configured to determine, based on a reference bead shape and at least one reference process parameter, response surface profile of the liquid adhesive. The processor is configured to compare the measured bead shape to a reference bead shape and, responsive to determining the measured bead shape is different than the reference bead shape, determine, based on the response surface profile, at least one updated process parameter. The updated process parameter is configured to cause the robot to dispense a second bead having the reference bead shape.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: December 17, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Steven P. Floeder, Jeffrey P. Adolf, Gregory P. Moriarty, Cory D. Sauer
  • Patent number: 12164132
    Abstract: Optical stacks are described that include a reflective polarizer disposed between an infrared reflector and an infrared absorber.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: December 10, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Jathan D. Edwards
  • Patent number: 12163070
    Abstract: Curable adhesive films, primers for adhesion of curable adhesive films, and adhesive systems comprising adhesive films and primers are provided. In some embodiments, an adhesive system comprises: I) a curable adhesive free-standing film comprising a blend of: a) a first film-forming polymer or oligomer; b) a first species comprising first unsaturated free-radically polymerizable groups, which may be a) or a species other than a); and c) a first transition metal cation; and II) a primer for adhesion of a curable adhesive free-standing film to a first substrate comprising an oxidizing agent. In some embodiments, an adhesive system comprises: I) a curable adhesive free-standing film comprising an outer surface bearing embossed air bleed channels capable of aiding in escape of air during application of the outer surface to a primed substrate; and II) a primer comprising components that initiate cure of the curable adhesive free-standing film.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: December 10, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Shantanu R. Ranade, Alexander J. Kugel, Kai U. Claussen, Rachna Khurana, Dean M. Moren, William H. Sikorski, Jr., Erik M. Townsend
  • Patent number: 12163085
    Abstract: A flame-retardant composition is described comprising a mixture of a water dispersible organic polymer; and a water dispersible derivative of an unsaturated dicarboxylic acid or anhydride thereof. The water dispersible derivative typically has a solubility in a 0.1 N aqueous solution of NaOH at 25° C. of at least 25 g/liter. Also described is a flame-retardant composition comprising the mixture described dispersed in an aqueous carrier and method of making a flame-retardant composition.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: December 10, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Megan A. Creighton, Nathan E. Schultz, Tien Tsung Wu
  • Patent number: 12164164
    Abstract: A fiber optic ribbon is disclosed and includes a plurality of optical fibers extending along a first axis and arranged along an orthogonal second axis at a pitch P. Each optical fiber includes a core surrounded by a cladding surrounded by a buffer, the buffer has a nominal diameter D0 substantially equal to P. The buffer is stripped between a buffer-end location on the fiber and a free end of the fiber to form a stripped section. The buffer is distorted at the buffer-end location, such that at the buffer-end location, a width W of the buffer in the second axis is less than D0.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: December 10, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael A. Haase, Paul A. Chery
  • Patent number: 12164120
    Abstract: An optical film (210) includes a microstructured surface (211) comprising a plurality of prismatic structures (230), the microstructured surface (211) defining a reference plane (241-242) and a thickness direction (243) perpendicular to the reference plane; wherein the plurality of prismatic structures includes a plurality of facets (231), each facet having a facet normal direction forming a polar angle with respect to the thickness direction and an azimuthal angle along the reference plane, and wherein the microstructured surface has a surface azimuthal distribution of the plurality of facets that is substantially uniform, and wherein the microstructured surface has a surface polar distribution of the plurality of facets that has an off-axis peak polar distribution.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: December 10, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kristopher J. Derks, Tri D. Pham, Kenneth A. Epstein, David J. Lamb
  • Patent number: 12163042
    Abstract: A curable coating composition precursor comprising a first part (A) and a second part (B). The first part (A) comprises at least one first epoxy curing agent selected from aliphatic and cycloaliphatic amines and any combinations and mixtures thereof. The second part (B) comprises at least epoxy compound selected from bisphenol A and bisphenol F diglycidylether resins, and any combinations and mixtures thereof; at least one polyfunctional epoxy resin; at least one novolac epoxy resin; and optionally, at least one reactive diluent, Part (A) and/or part (B) comprise at least one inorganic phosphate compound.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: December 10, 2024
    Assignee: 3M Innovative Properties Company
    Inventor: Mareike Bardts
  • Patent number: 12163071
    Abstract: An adhesive article including a tie layer and a silicone adhesive is disclosed. The tie layer includes a segmented copolymer having a first segment that is one of (a) a polyether comprising one of PTMO or PEO/PPO or (b) a polysiloxane. The segmented copolymer has a water absorbency of less than about 13%.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: December 10, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Jennifer N. Hanson, Kiu-Yuen Tse, Amanda C. Engler, Pamela A. Percha
  • Patent number: 12159177
    Abstract: Optical articles including a spatially defined arrangement of a plurality of data rich retroreflective elements, wherein the plurality of retroreflective elements comprise retroreflective elements having at least two different retroreflective properties and at least two different optical contrasts with respect to a background substrate when observed within an ultraviolet spectrum, a visible spectrum, a near-infrared spectrum, or a combination thereof.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: December 3, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Michael A. McCoy, Anne C. Gold, Silvia Geciova-Borovova Guttmann, Glenn E. Casner, Timothy J. Gardner, Steven H. Kong, Gautam Singh, Jonathan T. Kahl, Nathan J. Anderson, Catherine L. Aune, Caroline M. Ylitalo, Britton G. Billingsley, Muhammad J. Afridi, Kui Chen-Ho, Travis L. Potts, Robert W. Shannon, Guruprasad Somasundaram
  • Patent number: 12157941
    Abstract: Barrier films including a (co)polymeric substrate, at least one dyad on the substrate, each dyad made of a (co)polymer layer and an oxide layer overlaying the (co)polymer layer, and an outer (co)polymer layer overlaying the dyads. Optionally, at least one outer oxide layer overlays the outer (co)polymer layer. The barrier films transmit visible light and transmits, at an incident light angle of at least one of 0°, 30°, 45°, 60°, or 75°, at most 70 percent of incident ultraviolet light at a wavelength range from at least 100 nanometers to 400 nanometers or in a wavelength range from at least 100 nm to 350 nm. The barrier films exhibit atomic oxygen degradation of less than 1×10?20 mg/atom. The barrier films may be applied to decorative objects or electronic devices, (e.g., light receiving or emitting devices, in a satellite or aircraft. Methods of making the barrier films also are disclosed.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: December 3, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Sean M. Sweetnam, Stephen P. Maki, Timothy J. Hebrink, Daniel M. Pierpont, Mark D. Weigel, David J. Rowe, Brandon R. Pietz, Christopher S. Lyons, Kevin D. Hagen
  • Patent number: 12161013
    Abstract: The present disclosure provides an article including a layer having a nanostructured first surface including nanofeatures and an opposing second surface, and an organic layer including a major surface attached to a portion of the nanofeatures. The nanostructured first surface includes protruding features that are formed of a single composition and/or recessed features. The nanofeatures and the major surface of the second layer together define at least one void. The present disclosure also provides a method of making the article including contacting nanofeatures of a layer having a nanostructured surface with a major surface of an organic layer and reacting at least one material to secure the two layers together. In addition, the present disclosure provides an optical information display and an OLED device including the article. The nanostructured surface of the article is protected from damage and contamination by the organic layer.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: December 3, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jeffrey L. Solomon, Henrik B. van Lengerich, Bryan V. Hunt, Tabitha A Silliman, William Blake Kolb, Nicholas C. Erickson, Stephen M. Menke, Derek W. Patzman, Justin P Meyer, Bert T. Chien, Thomas E. Muehle, Thomas P. Klun
  • Patent number: 12153245
    Abstract: An optical construction (100) includes a lightguide (102), a transmissive reflector (112), and an optical sensor (114). The lightguide (102) includes a first major surface (104) and a second major surface (106) opposite to the first major surface (104). The first major surface (104) includes a first portion (108) and an adjoining second portion (110). The transmissive reflector (112) is disposed adjacent to the first major surface (104) of the lightguide (102). The optical sensor (114) is disposed adjacent to the transmissive reflector (112) opposite to the lightguide (102). The optical sensor (114) is aligned with the first portion (108) of the first major surface (104) of the lightguide (102), such that the optical sensor (114) receives at least a portion of light passing through the first portion (108) of the first major surface (104) and transmitted by the transmissive reflector (112).
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: November 26, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Zhe Hu, Mingxing Wang, Tuhua Chen, Zhiping Liu, Yang Liu, Xiulong Men, Hailiang Hou, Huijie Xie, Yifei Zheng, Feng Zhao, Jingfei Chen, Bharat R. Acharya, Quinn D. Sanford, Matthew S. Cole, Tao Zhang
  • Patent number: D1053463
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: December 3, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: David M. Blomberg, Patrick R. McKellips