Patents Assigned to 3M
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Patent number: 11845885Abstract: Provided are methods and associated compositions directed to a structural bonding adhesive. The structural bonding adhesive is made by mixing a curable composition comprising a mixture of a first curable resin and a second curable resin to provide an uncured adhesive. The uncured adhesive is irradiated by a first actinic light source to polymerize the first curable resin without polymerizing the second curable resin to provide a partially cured adhesive. The partially cured adhesive is a pressure-sensitive adhesive that displays cold flow creep recovery under ambient conditions and is capable of being fully cured by irradiating the partially cured adhesive using a second actinic light source that is different from the first actinic light source to polymerize the second curable resin.Type: GrantFiled: December 28, 2016Date of Patent: December 19, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Matthew J. Schmid, Cyrus A. Anderson, Kathleen S. Shafer, Xiao Gao, James M. Nelson
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Patent number: 11842479Abstract: A manufacturing method of a laminated sheet having a printed layer includes, given that a table that associates density data of a specific area included in image data with a burnup degree of the printed layer corresponding to the specific area at printing based on the image data is an image-burnup degree conversion table, identifying the image-burnup degree conversion table that satisfies a printing condition for the laminated sheet, acquiring printed image data that is image data for forming the printed layer of the laminated sheet, and calculating the burnup degree of the printed layer based on the image-burnup degree conversion table and the printed image data. Also disclosed is a laminated sheet having a printed layer, a system for manufacturing the laminated sheet, and a program for manufacturing the laminated sheet.Type: GrantFiled: September 26, 2019Date of Patent: December 12, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventor: Koji Saito
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Patent number: 11839845Abstract: A relofted, spunbonded nonwoven web exhibiting a solidity of from less than 8.0%, to at least 3.0%, and exhibiting a Quality Factor of at least 0.30. Methods of making a relofted web; and, methods of using a relofted web as an air-filtration web, e.g. as a filter media or a layer thereof.Type: GrantFiled: July 19, 2019Date of Patent: December 12, 2023Assignee: 3M Innovative Properties CompanyInventors: Zhiqun Zhang, Edward Keith Willis, Jacob J. Thelen, Daniel E. Johnson, Bryan L. Gerhardt, Michael R. Berrigan
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Patent number: 11840055Abstract: A construction member of one embodiment of the present disclosure includes a decorative film and a pre-mask: that is laminated to the decorative film and removed alter application of the decorative film is described. The decorative film includes: a transparent resin film having, an embossed first surface and a second surface opposite the first surface; a printed layer disposed on the second surface of the transparent resin: film; and a colored adhesive layer disposed on or above the printed layer. The pre-mask includes: a support film having a first surface and a second, surface opposite: the first surface; and a pressure-sensitive adhesive layer that has an uneven surface and: is disposed on the first, surface of the support film. The first surface of the transparent resin film of the decorative film and the uneven surface of the pressure-sensitive adhesive layer of the pre-mask face each other.Type: GrantFiled: August 1, 2019Date of Patent: December 12, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Hidetoshi Abe, Koji Saito
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Patent number: 11840620Abstract: A decorative sheet according to an embodiment of the present disclosure contains a film layer having an upper face and a lower face, and a pressure-sensitive adhesive layer adhered to the lower face of the film layer, the pressure-sensitive adhesive layer containing an acrylic-based adhesive and 5 part by mass to 10 part by mass % of ammonium polyphosphate per 100 part by mass of the acrylic-based adhesive.Type: GrantFiled: March 2, 2016Date of Patent: December 12, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Shinsuke Kondo, Eumi Pyun, Masaaki Furusawa
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Patent number: 11839521Abstract: The present invention provides assemblies, kits, and methods including a compressible material. Optionally, a hardenable dental composition (e.g., an adhesive or primer) is in contact with the compressible material for bonding a dental article (e.g., an orthodontic appliance) to a tooth structure. Removal of excess hardenable and/or hardened dental composition, if desired, can be facilitated for embodiments in which the hardenable dental composition is an unfilled or a lightly filled composition.Type: GrantFiled: October 17, 2019Date of Patent: December 12, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventor: David K. Cinader, Jr.
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Patent number: 11834582Abstract: The present disclosure relates to a method of treating a substrate comprising an elastomeric material, wherein the method comprises the steps of: a) providing a composition comprising: i. at least one fluoropolymer which is a copolymer comprising at least 90% by weight, based on the total weight of the copolymer, of units derived from tetrafluoroethene (TFE) and from one or more perfluorinated alkyl ethers corresponding to the general formula (I): Rf1—O—(CF2)n—CF?CF2 (I) wherein n is 1 or 0 and Rf1 represents a perfluoroalkyl residue which is optionally interrupted once or more than once by an oxygen atom; and ii.Type: GrantFiled: June 11, 2019Date of Patent: December 5, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Alain G. Verschuere, Joachim Kneer, Anne Van Royen
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Patent number: 11834544Abstract: Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices.Type: GrantFiled: March 11, 2019Date of Patent: December 5, 2023Assignees: 3M Innovative Properties Company, The Penn State Research FoundationInventors: Michael A. Yandrasits, Carl A. Laskowski, Timothy M. Gillard, Michael Hickner, Liang Zhu
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Patent number: 11835821Abstract: A backlight for an image forming device includes spaced-apart front and back optical reflectors defining an optical cavity therebetween, and at least one light source for emitting light into the optical cavity. The front optical reflector may be disposed between the image forming device and the back optical reflector. For substantially normally incident light and for nonoverlapping first and second wavelength ranges, the front optical reflector may transmit at least 70% of light for each wavelength in the first wavelength range, and may reflect at least 70% of light for each wavelength in the second wavelength range. The back optical reflector may reflect at least 70% of light for each wavelength in the first wavelength range, and may transmit at least 70% of light for each wavelength in the second wavelength range. The emitted light may have at least one wavelength in the first wavelength range and at least one wavelength in the second wavelength range.Type: GrantFiled: September 26, 2022Date of Patent: December 5, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Quinn D. Sanford, Matthew B. Johnson, Ryan T. Fabick, Nathaniel K. Naismith
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Patent number: 11834535Abstract: Curable compositions include an acrylate of Formula I: Formula I at least one multifunctional (meth)acrylate with fused aromatic groups, heteroarylene groups, heteroalkylene groups, alkylene groups, or aralkylene groups, and a photoinitiator. The compositions, when cured, have a refractive index of 1.63 or greater at 532 nanometers, are optically transparent, and have a thermal stability such that upon heating for 1 hour at 250° C. they have a weight loss of 3.5% or less.Type: GrantFiled: May 10, 2019Date of Patent: December 5, 2023Assignee: 3M Innovative Properties CompanyInventors: Wayne S. Mahoney, Saswata Chakraborty, Evan L. Schwartz, Claire Hartmann-Thompson, Tabitha A. Silliman
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Patent number: 11833851Abstract: There is provided an article comprising at least a first surface having: (a) a first binder layer; (b) a plurality of transparent microspheres partially embedded in the first binder layer wherein the transparent microspheres have refractive indices that are less than a refractive index of the first binder layer and wherein the plurality of transparent microspheres consist of microspheres having a refractive index of no more than 1.490. There is also provided a transfer article comprising: (a) a transfer carrier, the transfer carrier comprising: (i) a support layer; and (ii) a thermoplastic release layer bonded to the support layer; (b) a layer of a plurality of transparent microspheres, formed on a side of the thermoplastic transparent microsphere release layer opposite the support layer, wherein the plurality of transparent microspheres consist of microspheres having a refractive index of no more than 1.490.Type: GrantFiled: September 9, 2020Date of Patent: December 5, 2023Assignee: 3M Innovative Properties CompanyInventors: Vivek Krishnan, John C. Clark, Thomas B. Galush, Jean A. Tangeman
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Patent number: 11827754Abstract: Provided is a method of forming a fibrin hydrogel composition, the method including providing a fibrin hydrogel or precursor thereof, comprising fibrin hydrogel forming salt. The fibrin hydrogel forming salt concentration is greater than or equal to the threshold concentration to form a fibrin hydrogel. The method further includes combining the fibrin hydrogel with a carrier material. The concentration of the carrier material typically ranges from 0.1 to about 50 wt.-%. The method further includes reducing the salt concentration below the threshold concentration to form a fibrin hydrogel.Type: GrantFiled: October 4, 2017Date of Patent: November 28, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Jason W. Bjork, Amy S. Determan, Jonathan J. O'Hare, Robert A. Asmus, James P. Dizio, Zhicheng Tian
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Patent number: 11828972Abstract: An optical system includes an extended illumination source configured to emit light from an extended emission surface thereof and a light redirecting layer disposed on the extended emission surface. The light redirecting layer has a structured major surface that includes a regular array of light redirecting structures, each light redirecting structure including a plurality of facets; and a plurality of discrete spaced apart window segments. The optical system includes a plurality of reflective segments where each reflective segment is disposed on a corresponding window segment. For substantially normally incident light, each reflective segment has a total: average optical reflectance of at least 30% in a visible wavelength range extending from about 420 nm to about 650 nm; and optical transmittance of at least 10% for at least one infrared wavelength in an infrared wavelength range extending from about 800 nm to about 1200 nm.Type: GrantFiled: October 2, 2020Date of Patent: November 28, 2023Assignee: 3M Innovative Properties CompanyInventors: Tao Liu, Gary T. Boyd, David A. Rosen, Bharat R. Acharya, Kevin W. Gotrik, David J. Rowe, Caleb T. Nelson
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Patent number: 11826779Abstract: Wet-on-wet coating processes are provided to produce multilayer articles. First and second coating materials are sequentially applied on to a structured substrate surface to form a skin layer directly over the structured substrate surface and a bulk layer over the skin layer. The conformability of the skin layer can be adjusted to provide desired surface and bulk properties.Type: GrantFiled: December 24, 2020Date of Patent: November 28, 2023Assignee: 3M Innovative Properties CompanyInventors: Brittni M. Schiewer, Eric A. Vandre, Chris A. Pommer, Kara A. Meyers, Anish Kurian, Michelle Ji, Hyacinth L Lechuga, Ross E. Behling, Dong-Wei Zhu, Robert B. Secor, Mikhail L. Pekurovsky
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Patent number: 11827811Abstract: A hardcoat composition includes one or more multifunctional (meth)acrylate monomers, and a population of semi-reactive nanoparticles dispersed within the one or more multifunctional (meth)acrylate monomers. The population of semi-reactive nanoparticles have an average particle diameter in a range from 5 nm to 60 nm.Type: GrantFiled: May 4, 2020Date of Patent: November 28, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Peter D. Condo, David Scott Thompson, John J. Stradinger, Catherine A. Leatherdale, Richard J. Pokorny, Steven D. Solomonson
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Patent number: 11827802Abstract: A hardcoat composition includes one or more multifunctional (meth)acrylate monomers, and a nanoparticle mixture dispersed within the one or more multifunctional (meth)acrylate monomers. The nanoparticle mixture includes a first population of semi-reactive nanoparticles having an average particle diameter in a range from 5 nm to 60 nm, and a second population of non-reactive nanoparticles having an average particle diameter in a range from 5 nm to 60 nm.Type: GrantFiled: May 4, 2020Date of Patent: November 28, 2023Assignee: 3M Innovative Properties CompanyInventors: Peter D. Condo, David Scott Thompson, John J. Stradinger, Catherine A. Leatherdale, Richard J. Pokorny, Steven D. Solomonson
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Patent number: 11826215Abstract: A system having at least one dental blank and an associated shade guide. The dental blank exhibits a non-uniform color shading, and the shade guide comprises a plurality of shade specimens each exhibiting a particular color shading representing the same color shading present in a partial area within the dental blank. A method of making a dental restoration includes the use of the system. The invention facilitates making a dental restoration having a color shading resembling the color shading of a natural tooth.Type: GrantFiled: June 22, 2020Date of Patent: November 28, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Malte Korten, Helmar B. Mayr
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Patent number: 11829024Abstract: 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.Type: GrantFiled: February 18, 2020Date of Patent: November 28, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Gilles J. Benoit, Carl A. Stover, Matthew B. Johnson, Ryan T. Fabick, Quinn D. Sanford
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Patent number: 11827810Abstract: A hardcoat composition includes one or more multifunctional (meth)acrylate monomers, and a nanoparticle mixture dispersed within the one or more multifunctional (meth)acrylate monomers. The nanoparticle mixture includes a first population of semi-reactive nanoparticles having an average particle diameter in a range from 5 nm to 60 nm, and a second population of reactive nanoparticles having an average particle diameter in a range from 5 nm to 60 nm.Type: GrantFiled: May 4, 2020Date of Patent: November 28, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Peter D. Condo, David Scott Thompson, John J. Stradinger, Catherine A. Leatherdale, Richard J. Pokorny, Steven D. Solomonson
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Patent number: 11827864Abstract: 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: GrantFiled: October 19, 2022Date of Patent: November 28, 2023Assignee: 3M Innovative Properties CompanyInventors: Steven P. Swanson, Jerald K. Rasumssen, George W. Griesgraber, Andrew W. Vail, Andrew S. Waller