公开(公告)号：US20250034289A1

公开(公告)日：2025-01-30

申请号：US18714159

申请日：2022-11-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： William H. Moser ,  Amanda K. Leone

IPC: C08F2/50 ,  C07C49/84 ,  C07D239/62 ,  C07D307/62 ,  C07D407/04

Abstract: Polymerizable compositions are provided, including a polymerizable component and a redox initiation system. The redox initiation system includes a transition metal complex that participates in a redox cycle; an oxidizing agent; and a photolabile reducing agent containing a benzophenone moiety. On exposure to actinic radiation, such as UV, the photolabile reducing agent photolyzes, releasing the reducing agent and initiating the redox-initiated polymerization of the polymerizable component. Also provided is a photolabile reducing agent.

公开(公告)号：US20250033338A1

公开(公告)日：2025-01-30

申请号：US18704977

申请日：2022-11-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kevin W. Gotrik ,  Scott J. Jones ,  Christopher S. Lyons ,  Cedric Bedoya

IPC: B32B37/00 ,  B32B7/06 ,  B32B15/082 ,  B32B27/08 ,  B32B27/30 ,  B32B27/36

Abstract: A transfer article (100) comprising a substrate (110), a first acrylate layer (120) overlaying the substrate layer (110), a release layer (130) overlaying the first acrylate layer (120), a second acrylate layer (140) overlaying the release layer (130), and a function layer (150) overlaying the second acrylate layer (140). The release layer (130) comprises a metal layer or a doped semiconductor layer. The function layer (150) may be applied to a surface of a receiving article (170) and the release layer (130) removed from the receiving article (170) such that the function layer (150) and second acrylate layer (140) remain on the surface of the receiving article (170).

公开(公告)号：US12210241B2

公开(公告)日：2025-01-28

申请号：US18381412

申请日：2023-10-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gilles J. Benoit ,  Carl A. Stover ,  Matthew B. Johnson ,  Ryan T. Fabick ,  Quinn D. Sanford

IPC: G02F1/1335 ,  G02F1/13357

Abstract: An optical stack for reflecting and transmitting light in a predetermined wavelength range includes stacked first and second optical films, the predetermined wavelength range defining a first wavelength range and a remaining wavelength range. For normally incident light and for each wavelength in a first wavelength range, the first optical film substantially reflects light having a first polarization state, and substantially transmits light having a second polarization state. For each of the first and second polarization states, for wavelengths in the first wavelength range, the second optical film has a maximum optical transmittance Tmax for light incident at a first incident angle, and an optical transmittance Tmax/2 for light incident at a second incident angle, where the second incident angle is greater than the first incident angle by less than about 50 degrees. For wavelengths in the remaining wavelength range, the second optical film reflects at least 80% of light.

公开(公告)号：US12208491B2

公开(公告)日：2025-01-28

申请号：US16478638

申请日：2018-01-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Joseph B. Eckel ,  Aaron K. Nienaber ,  Ronald D. Jesme ,  Samad Javid

IPC: B24D11/00 ,  B24D18/00 ,  C09K3/14

Abstract: According to one embodiment, a method of making an abrasive layer on a backing is disclosed. The method can comprise: providing a distribution tool having a dispensing surface with cavities, providing a backing having a first major surface, supplying magnetizable abrasive particles to the dispensing surface such that at least one of the magnetizable abrasive particles is disposed in a respective one of the cavities, applying a magnetic field to retain the magnetizable abrasive particles disposed in the cavities, aligning the backing with the dispensing surface with the first major surface facing the dispensing surface, transferring the magnetizable abrasive particles from the cavities to the backing, sequent to or simultaneous with transferring the abrasive particles, removing or changing a magnetic field so the magnetic field no longer retains the magnetizable abrasive particles in the cavities.

公开(公告)号：US20250026969A1

公开(公告)日：2025-01-23

申请号：US18716549

申请日：2022-12-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： James J. Kobe ,  Adrian T. Jung ,  Rolf W. Biernath ,  Brianna L. McCord

IPC: C09J163/00 ,  C08G59/24 ,  C08G59/50 ,  C08G59/68

Abstract: Methods of tuning one or more properties of a multipart structural adhesive composition, the methods including providing a Part I of the multipart structural adhesive via a first processor-controlled delivery mechanism; providing at least a first sub-Part 2 and a second sub-Part 2 of the multipart structural adhesive via at least a second processor-controlled delivery mechanism; and causing to be formed the multipart structural adhesive by combining the Part 1, the first sub-Part 2, and the second sub-Part 2, wherein the amount, ratio, or both of the first sub-Part 2 and the second sub-Part 2 impact the one or more properties of the multipart structural adhesive composition, wherein the amounts or ratios of the Part 1, the first sub-Part 2 and the second sub-Part 2 affect the one or more properties of the multipart structural adhesive composition, and wherein the multipart structural adhesive has an overlap shear strength of at least about 0.75 MPa (109 psi).

公开(公告)号：US20250026965A1

公开(公告)日：2025-01-23

申请号：US18716584

申请日：2022-11-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Encai Hao ,  Yongshang Lu ,  Jason D. Clapper

IPC: C09J7/38 ,  B32B7/12 ,  B32B17/06

Abstract: The present invention is a pressure sensitive adhesive including a polyurethane polymer comprising a reaction product of an isocyanate, a (meth) acrylate-containing alcohol having at least one (meth)acrylate group and at least one alcohol group, and a polyol component having a defined solubility parameter of less than about 10; an oligomer comprising a multifunctional (meth)acrylate; and a photoinitiator. A peel adhesion of the pressure sensitive adhesive to glass decreases at least about 20% after being exposed to light radiation.

公开(公告)号：US20250026964A1

公开(公告)日：2025-01-23

申请号：US18713852

申请日：2022-11-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Akihiko Nakayama ,  Hiroki Suzuki ,  Masafumi Hosoume ,  Seigo Ishikawa

IPC: C09J7/25 ,  C08J3/28 ,  C08J7/04 ,  C09J133/06

Abstract: A decorative film with a cover film of an embodiment includes: (a) a polyurethane layer having a first surface and a second surface opposite to the first surface and containing a polyurethane that is crosslinked at least partially, wherein the polyurethane that is crosslinked at least partially includes at least one of a polyester-based polyurethane or a polycarbonate-based polyurethane: (b) a removable cover film having a corona treated or plasma treated surface, wherein the corona treated or plasma treated surface of the removable cover film is in contact with the first surface of the polyurethane layer: (c) a base layer having a first surface and a second surface opposite to the first surface, wherein the first surface of the base layer is in contact with the second surface of the polyurethane layer; and (d) an adhesive layer in contact with the second surface of the base layer.

公开(公告)号：US12205732B2

公开(公告)日：2025-01-21

申请号：US18130969

申请日：2023-04-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Douglas B. Gundel

IPC: H01B11/08 ,  G08B25/00 ,  H01B7/08 ,  H01B9/02 ,  H01B11/00 ,  H01B11/04 ,  H01B11/10 ,  H01B11/20 ,  H01R9/05 ,  H01R12/59 ,  H01R13/58 ,  H04L41/28 ,  H04W4/70 ,  H04W24/04 ,  H04W84/18 ,  H01R12/53 ,  H04L43/0811 ,  H04L43/0817

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.

公开(公告)号：US12204062B2

公开(公告)日：2025-01-21

申请号：US17655577

申请日：2022-03-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gary A. Morris ,  Ziyad H. Doany

IPC: G01V3/08 ,  G01V15/00

Abstract: A marker device for locating buried infrastructure comprises a cover, a marker detectable underground by a magnetic field detecting locating device; and a holder formed from a compliant material. The marker has a diameter smaller than an inner diameter of the cover. The marker is secured between an inner surface of the cover and a first surface of the holder. The holder is configured to attach to an outer surface of a utility valve cap of an underground valve.

公开(公告)号：US12202099B2

公开(公告)日：2025-01-21

申请号：US15700869

申请日：2017-09-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Steven J. Keipert

IPC: B24D3/00 ,  B24D3/28 ,  C09K3/14

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.