Abstract: A shielded electrical cable includes conductor sets extending along a length of the cable and spaced apart from each other along a width of the cable. First and second shielding films are disposed on opposite sides of the cable and include cover portions and pinched portions arranged such that, in transverse cross section, the cover portions of the films in combination substantially surround each conductor set. An adhesive layer bonds the shielding films together in the pinched portions of the cable. A transverse bending of the cable at a cable location of no more than 180 degrees over an inner radius of at most 2 mm causes a cable impedance of the selected insulated conductor proximate the cable location to vary by no more than 2 percent from an initial cable impedance measured at the cable location in an unbent configuration.
Abstract: The present disclosure relates generally to the field of adhesives, more specifically to the field of structural adhesive tapes, in particular for use in bonding metal parts. The present disclosure also relates to a method of bonding two parts and to a composite article. The present disclosure is further directed to the use of a structural adhesive tape for industrial applications, such as construction and automotive applications, in particular for body-in-white bonding applications in the automotive industry.
Abstract: A pattern of microchannels is formed on a major surface of a substrate on the side opposite an adhesive surface thereof. Through holes extend through the substrate and are connected to the pattern of microchannels. Solid circuit dies are adhesively bonded to the adhesive surface of the substrate. The contact pads of the solid circuit dies at least partially overlie and face the through holes. Electrically conductive channel traces are formed to electrically connect to the solid circuit dies via the through holes.
Type:
Grant
Filed:
September 17, 2020
Date of Patent:
January 21, 2025
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
Inventors:
Kayla C. Niccum, Ankit Mahajan, Saagar A. Shah, Kara A. Meyers, Mikhail L. Pekurovsky, Jonathan W. Kemling, David C. Mercord, Pranati Mondkar
Abstract: A coated abrasive article having a plurality of formed ceramic abrasive particles each having a surface feature. The plurality of formed ceramic abrasive particles attached to a flexible backing by a make coat comprising a resinous adhesive forming an abrasive layer. The surface feature having a specified z-direction rotational orientation, and the specified z-direction rotational orientation occurs more frequently in the abrasive layer than would occur by a random z-direction rotational orientation of the surface feature.
Abstract: The present disclosure relates generally to tension-activated, expanding articles, films, and sheets. 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 16, 2020
Date of Patent:
January 21, 2025
Assignee:
3M Innovative Properties Company
Inventors:
Thomas R. Corrigan, Patrick R. Fleming, Dylan T. Cosgrove, Delony L. Langer-Anderson, Lisa M. Miller, Manoj Nirmal
Abstract: Techniques are described for monitoring and controlling fall protection equipment. For example, the techniques of this disclosure may be used to monitor the connection status of fall protection equipment, e.g., whether or not the fall protection equipment is connected to a support structure. The techniques of this disclosure may also be used to control the operation of the fall protection equipment based on the connection status.
Type:
Grant
Filed:
March 9, 2018
Date of Patent:
January 21, 2025
Assignee:
3M Innovative Properties Company
Inventors:
Judd J. Perner, Ronald D. Jesme, Travis W. Rasmussen
Abstract: An optical film includes a film body defining an upper surface, a lower surface opposite to the upper surface, and at least one outer edge extending between the upper and lower surfaces. The optical film also includes at least one energy radiated discolored portion formed in the film body. The at least one energy radiated discolored portion includes a radiation absorbing material.
Abstract: A transparent solvent-based acrylic pressure-sensitive adhesive agent is described. Such agent contains: an adhesive (meth)acrylic polymer having a weight average molecular weight of 350000 or less; a high Tg (meth)acrylic polymer having a glass transition temperature of 40° C. or higher; a covalent bonding crosslinking agent that can form a covalent bond with the adhesive (meth)acrylic polymer; and at least one type of non-covalent bonding crosslinking agent selected from the group consisting of a benzotriazole compound, a piperidyl compound having at least two piperidyl groups, and an aluminum chelate compounds. Such solvent-based adhesive agent may exhibit a high constant load shear peeling force and maintain good appearance for an adhesive article to which it has been applied.
Abstract: Described herein is a coating composition comprising: (a) a metal catalyst, wherein the metal catalyst comprises at least one of platinum, ruthenium, iridium, and alloys and combinations thereof; (b) an at least highly fluorinated ionomer comprising a polymer backbone and a plurality of first side chains pendant therefrom, wherein the first side chain comprises at least one protogenic group, wherein the protogenic group is selected from a sulfonic acid, a bis(sulfonyl)imide, a sulfonamide, a sulfonyl methide, and salts and combinations thereof, and wherein the polymer backbone comprises an average of at least 14 carbon atoms between adjacent first side chains along the polymer backbone; and (c) a solvent. Such coating compositions may be used to make electrodes for electrochemical cells and have been shown to have reduced poisoning of the catalyst.
Type:
Grant
Filed:
October 25, 2019
Date of Patent:
January 14, 2025
Assignee:
3M Innovative Properties Company
Inventors:
Andrew T. Haug, John E. Abulu, Matthew J. Lindell, Tyler S. Matthews, Andrew J. L. Steinbach, Fuxia Sun, Michael A. Yandrasits
Abstract: A curable composition includes a polyol component comprising one or more polyols: a functional butadiene component; and a thermally conductive filler. The thermally conductive filler is present in an amount of at least 20 wt. %, based on the total weight of the curable composition. The curable composition has, upon curing, a thermal conductivity of at least 0.5 W/(mK).
Type:
Grant
Filed:
November 15, 2019
Date of Patent:
January 14, 2025
Assignee:
3M Innovative Properties Company
Inventors:
Lalitha V. N. R. Ganapatibhotla, Michael A. Kropp
Abstract: Provided are methods and systems for dispensing filament adhesive onto a target substrate. A filament adhesive is applied on a target substrate according to a bead application plan, then the applied bead is checked against performance criteria. A second bead application plan is generated, and subsequent filament bead applied according to the second bead application plan.
Type:
Grant
Filed:
December 14, 2020
Date of Patent:
January 14, 2025
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
Inventors:
Mark E. Napierala, Joel J. Bradley, Thomas Q. Chastek, Nicholas G. Dyshaw
Abstract: Provided are acoustic articles, and related methods, that include a porous layer and heterogeneous filler received in the porous layer. The heterogeneous filler can include clay, diatomaceous earth, graphite, glass bubbles, polymeric filler, non-layered silicate, plant-based filler, or a combination thereof, and can have a median particle size of from 1 micrometer to 1000 micrometers and a specific surface area of from 0.1 m2/g to 800 m2/g. The acoustic article can have an overall flow resistance of from 100 MKS Rayls to 8000 MKS Rayls. The acoustic articles can serve as acoustic absorbers, vibration dampers, and/or acoustic and thermal insulators.
Type:
Grant
Filed:
April 13, 2020
Date of Patent:
January 14, 2025
Assignee:
3M Innovative Properties Compnay
Inventors:
Michelle M. Mok, Michael R. Berrigan, Nicole D. Petkovich, Jonathan H. Alexander, Michael S. Wendland, Seungkyu Lee, Hassan Sahouani
Abstract: The present disclosure relates to a hearing protection device 10, 10? for protection in different hearing situations A, B, C. The device 10, 10? comprises a microphone 30, 30?, 32, 32?, a sound reproduction unit 38 having a loudspeaker 50, 50?, 52, 52? and a controller 60 for processing an ambient electrical signal. The present disclosure further relates to a controller 60 for such a hearing protection 10, 10?. The present disclosure furthermore relates to a method of switching such a hearing protection device 10, 10? in different hearing situations A, B, C.
Abstract: Backing films for adhesive tapes are presented, as well as adhesive tapes comprising such backing films, which may include tapes used in construction such as seam sealing tapes, roofing tapes, and flashing tapes. The backing film comprises a core layer, a first skin layer, and optionally a second skin layer, where the backing film has a coefficient of thermal expansion of less than 90 ppm/° C. measured in at least one direction within the plane of the film, and, in some embodiments, a Young's modulus of less than 550 MPa as measured in at least one direction. In some embodiments, the backing film has a coefficient of thermal expansion of not more than 91.8 ppm/° C. and a Young's modulus of not more than 540 MPa as measured in any direction within the plane of the film. In some embodiments, the core layer comprises a polyolefin, and skin layers comprise a thermoplastic elastomer.
Type:
Grant
Filed:
November 8, 2021
Date of Patent:
January 14, 2025
Assignee:
3M Innovative Properties Company
Inventors:
Rachna Khurana, Christopher J. Rother, Jeffrey O. Emslander
Abstract: A device for analyzing or inspecting a prepared portion of a power cable includes a cable gripping section to grip a portion of the power cable proximate to a prepared end of the power cable, where the cable end has been prepared by removing certain portions of the power cable so that it can properly accept an electrical or cable accessory, such as a splice or termination. The device also includes an imaging device holding section to hold an imaging device at a predetermined radial distance from the prepared cable end. In particular, the imaging device holding section is radially and axially adjustable in position. During inspection of the prepared cable end, the imaging device is fully rotated about the prepared cable end to acquire a 360 degree image of the prepared cable end.
Type:
Grant
Filed:
April 10, 2019
Date of Patent:
January 14, 2025
Assignee:
3M Innovative Properties Company
Inventors:
Cecil V. Francis, Sally M. Grambusch, Robert A. Hale, Qingqiang Ma, Douglas B. Gundel, Huo Ying Lu
Abstract: An optical system includes an optical film curved about a first axis and a light control film curved about the first axis. The light control film can be disposed between a light source and the optical film. The optical film includes a microstructured first major surface and an opposing second major surface. The microstructured first major surface defines a linear Fresnel lens including a plurality of Fresnel elements extending longitudinally along the first axis. The first major surface of the optical film faces the light control film. The light control film can include a plurality of alternating optically transmissive and optically absorptive regions extending longitudinally along the first axis such that in a cross-section orthogonal to the first axis, for at least a majority of the optically transmissive regions, a centerline between adjacent optically absorptive regions is substantially normal to a major surface of the light control film.
Type:
Grant
Filed:
April 23, 2024
Date of Patent:
January 14, 2025
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
Inventors:
Tao Liu, Gary T. Boyd, Daniel J. Schmidt, Caleb T. Nelson, Owen M. Anderson, Tri D. Pham, Encai Hao, Shu-Ching Fan
Abstract: Systems and methods for organizing and controlling the display of content, then measuring the effectiveness of that content in modifying behavior, within a particular temporal and spatial dimension, so as to minimize or eliminate confounding effects.
Type:
Grant
Filed:
November 14, 2023
Date of Patent:
January 14, 2025
Assignee:
3M Innovative Properties Company
Inventors:
Frederick J. Arsenault, Brian E. Brooks
Abstract: A thermal imaging system for use with a respirator mask comprising an in-mask display unit, and methods of configuring and operating such a system. The system uses a thermal imaging camera to capture a thermal image. The system is configured with the capability to shift from a default view in which an in-mask micro-display of the in-mask display unit shows a primary subimage of the captured thermal image but does not show a secondary subimage of the captured thermal image, to an auxiliary view in which the secondary subimage is now shown in place of at least a portion of the primary subimage.
Type:
Grant
Filed:
November 22, 2021
Date of Patent:
January 7, 2025
Assignee:
3M Innovative Properties Company
Inventors:
Darin K. Thompson, Kimberly M. Henry, Longin J. Kloc, David M. Barbarine
Abstract: A personal respiratory protection device comprising an upper panel, a central panel, and a lower panel, the central panel being separated from each of the upper and lower panels by a first and second fold, seam, weld or bond, respectively, such that device is capable of being folded flat for storage along the first and second fold, seam, weld or bond and opened to form a cup-shaped air chamber over the nose and mouth of the wearer when in use, wherein the upper panel has a graspable upper tab, the upper tab being graspable in use to open the device.
Type:
Grant
Filed:
July 12, 2022
Date of Patent:
January 7, 2025
Assignee:
3M Innovative Properties Company
Inventors:
Christopher P. Henderson, Reyad A. Abdulqader, Ciaran G. McMenamin, Audra A. Wilson, John M. Facer