公开(公告)号：US20240256088A1

公开(公告)日：2024-08-01

申请号：US18604764

申请日：2024-03-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bharat R. Acharya ,  Robert D. Taylor ,  Joseph P. Attard ,  Benjamin J. Forsythe ,  David T. Yust ,  Matthew E. Sousa ,  Jason S. Petaja ,  Anthony M. Renstrom ,  William Blake Kolb ,  Matthew S. Cole ,  Matthew S. Stay ,  Matthew R.D. Smith ,  Jeremy O. Swanson ,  Tri D. Pham ,  David A. Rosen ,  Qunyi Chen ,  Lisa A. DeNicola ,  Quinn D. Sanford ,  Carl A. Stover ,  Lin Zhao ,  Gilles J. Benoit

IPC: G06F3/042 ,  G02B5/02 ,  G02B5/30

CPC classification number: G06F3/0421 ,  G02B5/0226 ,  G02B5/305 ,  G02B6/0051

Abstract: A display system for sensing a finger of a user applied to the display system includes a display panel; a sensor for sensing the finger; a sensing light source configured to emit a first light having a first wavelength W1; and a reflective polarizer disposed between the display panel and the sensor. For a substantially normally incident light, an optical transmittance of the reflective polarizer versus wavelength for a first polarization state has a band edge such that for a first wavelength range extending from a smaller wavelength L1 to a greater wavelength L2 and including W1, where 30 nm≤L2−L1≤50 nm and L1 is greater than and within about 20 nm of a wavelength L3 corresponding to an optical transmittance of about 50% along the band edge, the optical transmittance has an average of greater than about 75%.

公开(公告)号：US11971560B2

公开(公告)日：2024-04-30

申请号：US17261123

申请日：2019-07-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jeremy O. Swanson ,  Matthew S. Stay ,  Matthew R. D. Smith

IPC: G02B5/08

CPC classification number: G02B5/0841

Abstract: Optical films are described. In particular, optical films including a broadband polymeric multilayer optical reflector and a discontinuous transparent coating disposed on the broadband multilayer optical reflector, where the discontinuous transparent coating includes an array of dots are described. Such films may provide reduced coefficients of friction while still having high specular reflectivity.

公开(公告)号：US11885999B2

公开(公告)日：2024-01-30

申请号：US17996676

申请日：2021-05-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bharat R. Acharya ,  Robert D. Taylor ,  Joseph P. Attard ,  Benjamin J. Forsythe ,  David T. Yust ,  Matthew E. Sousa ,  Jason S. Petaja ,  Anthony M. Renstrom ,  William Blake Kolb ,  Matthew S. Cole ,  Matthew S. Stay ,  Matthew R.D. Smith ,  Jeremy O. Swanson ,  Tri D. Pham ,  David A. Rosen ,  Qunyi Chen ,  Lisa A. DeNicola ,  Quinn D. Sanford ,  Carl A. Stover ,  Lin Zhao ,  Gilles J. Benoit

IPC: F21V8/00 ,  G06V40/13

CPC classification number: G02B6/0056 ,  G02B6/0051 ,  G06V40/1318

Abstract: An optical construction includes a reflective polarizer and an optically diffusive film disposed on the reflective polarizer. The reflective polarizer includes an outer layer including a plurality of first particles partially protruding from a first major surface thereof to form a structured major surface. A first optically diffusive layer is conformably disposed on the structured major surface. The optically diffusive film includes a second optically diffusive layer including a plurality of nanoparticles dispersed therein, and a structured layer including a structured major surface. For a substantially normally incident light and a visible wavelength range from about 450 nm to about 650 nm and an infrared wavelength range from about 930 nm to about 970 nm, the second optically diffusive layer has an average specular transmittance Vs in the visible wavelength range and an average specular transmittance Is in the infrared wavelength range, where Is/Vs≥2.5.

公开(公告)号：US20230214062A1

公开(公告)日：2023-07-06

申请号：US17996583

申请日：2021-05-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bharat R. Acharya ,  Robert D. Taylor ,  Joseph P. Attard ,  Benjamin J. Forsythe ,  David T. Yust ,  Matthew E. Sousa ,  Jason S. Petaja ,  Anthony M. Renstrom ,  William Blake Kolb ,  Matthew S. Cole ,  Matthew S. Stay ,  Matthew R.D. Smith ,  Jeremy O. Swanson ,  Tri D. Pham ,  David A. Rosen ,  Qunyi Chen ,  Lisa A. DeNicola ,  Quinn D. Sanford ,  Carl A. Stover ,  Lin Zhao ,  Gilles J. Benoit

IPC: G06F3/042 ,  G02B5/30 ,  G02B5/02 ,  F21V8/00

CPC classification number: G06F3/0421 ,  G02B5/305 ,  G02B5/0226 ,  G02B6/0051

Abstract: A display system for sensing a finger of a user applied to the display system includes a display panel; a sensor for sensing the finger; a sensing light source configured to emit a first light having a first wavelength W1; and a reflective polarizer disposed between the display panel and the sensor. For a substantially normally incident light, an optical transmittance of the reflective polarizer versus wavelength for a first polarization state has a band edge such that for a first wavelength range extending from a smaller wavelength L1 to a greater wavelength L2 and including W1, where 30 mn≤L2−L1≤50 nm and L1 is greater than and within about 20 nm of a wavelength L3 corresponding to an optical transmittance of about 50% along the band edge, the optical transmittance has an average of greater than about 75%.

公开(公告)号：US11360248B2

公开(公告)日：2022-06-14

申请号：US16630534

申请日：2018-07-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Neeraj Sharma ,  Guanglei Du ,  Matthew E. Sousa ,  Jeremy O. Swanson ,  Jung-Sheng Wu

IPC: G02B5/28 ,  G02B5/20 ,  G02B5/02 ,  G02B5/26

Abstract: Systems including one or both of a light emitter or a light receiver and an optical filter adjacent one or both of the light emitter or the light receive are described. The optical filter includes a wavelength selective scattering layer that scatters near-infrared light less than visible light. The wavelength selective scattering layer includes a plurality of particles. The plurality of particles have an imaginary refractive index less than 10.

公开(公告)号：US10442914B2

公开(公告)日：2019-10-15

申请号：US14911058

申请日：2014-08-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Peter D. Condo ,  Jeremy O. Swanson ,  James E. Thorson ,  Kristin L. Thunhorst

IPC: C08K9/04 ,  C09D7/40 ,  C08J5/24 ,  C08K9/06 ,  C08J5/00 ,  C08K7/00 ,  C08K7/18 ,  C08K7/28 ,  C08L63/00 ,  C08K3/36 ,  C09D7/20

Abstract: A nanocomposite is provided including silica nanoparticles and a dispersant dispersed in a curable resin or a curing agent, where the nanocomposite contains less than 2% by weight solvent. The silica nanoparticles include nonspherical silica nanoparticles and/or spherical pyrogenic silica nanoparticles. A composite is also provided including from about 4 to 70 weight percent of silica nanoparticles, and a dispersant, dispersed in a cured resin, and a filler embedded in the cured resin. Optionally, the composite further contains a curing agent. Further, a method of preparing a nanoparticle-containing curable resin system is provided including mixing from 10 to 70 weight percent of aggregated silica nanoparticles with a curable resin and a dispersant to form a mixture. The mixture contains less than 2% by weight solvent. The method also includes milling the mixture in an immersion mill containing milling media to form a milled resin system including silica nanoparticles dispersed in the curable resin.

公开(公告)号：US20160200898A1

公开(公告)日：2016-07-14

申请号：US14911058

申请日：2014-08-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Peter D. Condo ,  Jeremy O. Swanson ,  James E. Thorson ,  Kristin L. Thunhorst

IPC: C08K9/04

Abstract: A nanocomposite is provided including silica nanoparticles and a dispersant dispersed in a curable resin or a curing agent, where the nanocomposite contains less than 2% by weight solvent. The silica nanoparticles include nonspherical silica nanoparticles and/or spherical pyrogenic silica nanoparticles. A composite is also provided including from about 4 to 70 weight percent of silica nanoparticles, and a dispersant, dispersed in a cured resin, and a filler embedded in the cured resin. Optionally, the composite further contains a curing agent. Further, a method of preparing a nanoparticle-containing curable resin system is provided including mixing from 10 to 70 weight percent of aggregated silica nanoparticles with a curable resin and a dispersant to form a mixture. The mixture contains less than 2% by weight solvent. The method also includes milling the mixture in an immersion mill containing milling media to form a milled resin system including silica nanoparticles dispersed in the curable resin.

Abstract translation: 提供纳米复合材料，其包括分散在可固化树脂或固化剂中的二氧化硅纳米颗粒和分散剂，其中纳米复合材料含有小于2重量％的溶剂。 二氧化硅纳米颗粒包括非球形二氧化硅纳米颗粒和/或球形致热二氧化硅纳米颗粒。 还提供了包含约4-70重量％的二氧化硅纳米颗粒和分散在固化树脂中的分散剂和嵌入固化树脂中的填料的复合材料。 任选地，复合物还含有固化剂。 此外，提供了制备含纳米颗粒的可固化树脂体系的方法，包括将10至70重量％的聚集二氧化硅纳米颗粒与可固化树脂和分散剂混合以形成混合物。 该混合物含有小于2重量％的溶剂。 该方法还包括在含有研磨介质的浸轧机中研磨混合物以形成包含分散在可固化树脂中的二氧化硅纳米颗粒的研磨树脂体系。

公开(公告)号：US20160194480A1

公开(公告)日：2016-07-07

申请号：US14911103

申请日：2014-08-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Peter D. Condo ,  James E. Thorson ,  Jeremy O. Swanson ,  Kristin L. Thunhorst

IPC: C08K7/18 ,  C08J5/24

CPC classification number: C08K9/04 ,  B05D2601/02 ,  B05D2601/22 ,  C08J5/005 ,  C08J5/24 ,  C08J2333/08 ,  C08J2333/24 ,  C08J2363/00 ,  C08K3/36 ,  C08K7/00 ,  C08K7/18 ,  C08K7/28 ,  C08K9/06 ,  C08K2201/003 ,  C08K2201/011 ,  C08L63/00 ,  C09D7/40 ,  C08L71/00

Abstract: A nanocomposite is provided including spherical pyrogenic silica nanoparticles dispersed in a curable resin or a curing agent. The nanocomposite contains less than 2% by weight solvent and less than 0.5% by weight dispersant based on the nanoparticle weight. A composite is also provided including from about 4 to 70 weight percent of spherical pyrogenic silica nanoparticles dispersed in a cured resin, and a filler embedded in the cured resin. Optionally, the composite further contains a curing agent. Further, a method of preparing a nanoparticle-containing curable resin system is provided including mixing from 10 to 70 weight percent of aggregated spherical pyrogenic silica nanoparticles with a curable resin to form a mixture. The mixture contains less than 2% by weight solvent and less than 0.5% by weight dispersant based on the nanoparticle weight. The method also includes milling the mixture in an immersion mill containing milling media to form a milled resin system including silica nanoparticles dispersed in the curable resin.

Abstract translation: 提供纳米复合材料，其包括分散在可固化树脂或固化剂中的球形热解二氧化硅纳米粒子。 纳米复合材料含有小于2重量％的溶剂和小于0.5重量％的基于纳米颗粒重量的分散剂。 还提供了一种复合材料，其包括分散在固化树脂中的约4至70重量％的球形热解二氧化硅纳米颗粒和嵌入固化树脂中的填料。 任选地，复合物还含有固化剂。 此外，提供了制备含纳米颗粒的可固化树脂体系的方法，包括将10至70重量％的聚集的球形热解二氧化硅纳米颗粒与可固化树脂混合以形成混合物。 该混合物含有小于2重量％的溶剂和小于0.5重量％的基于纳米颗粒重量的分散剂。 该方法还包括在含有研磨介质的浸轧机中研磨混合物以形成包含分散在可固化树脂中的二氧化硅纳米颗粒的研磨树脂体系。