Patents by Inventor Christopher B. Walker, Jr.

Christopher B. Walker, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8729211
    Abstract: Fluorocarbon- and urethane-(meth)acryl-containing additives and hardcoats. The hardcoats are particularly useful as a surface layer on an optical device.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: May 20, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas P. Klun, Naiyong Jing, Richard J. Pokorny, Zai-Ming Qiu, Mark J. Pellerite, William D. Coggio, Christopher B. Walker, Jr.
  • Patent number: 8659829
    Abstract: Optical films are described comprising a color shifting film comprising a matte surface layer; and light control microstructured layer disposed proximate the color shifting film. The optical film may comprise a matte layer disposed on a major surface of the color shifting film and the light control micro structured layer disposed on the color shifting film at an interface that is free of adhesive. Alternatively, the optical film may comprise a film stack comprising a light control film having a light control microstructured layer, a color shifting film, and an adhesive layer between the light control film and color shifting film. In some embodiments, the matte layer comprises matte particles. In other embodiments, the matte layer comprises a plurality of microstructures and no greater than 50% of the microstructures comprise embedded matte particles. In some embodiments, the microstructures are substantially free of embedded matte particles.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: February 25, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Christopher B. Walker, Jr., Michael E. Lauters, Joan M. Noyola
  • Patent number: 8611010
    Abstract: A method of reducing optical fringing of a coated substrate is described. The method comprises providing a (e.g. light transmissive) substrate; providing a primer having an unmatched refractive index, and applying the primer to the substrate forming a primer layer having an optically significant thickness. The primer layer in combination with the substrate has a percent reflectance at a maximum at a wavelength of interest. Also described are articles comprising a substrate, a primer having an unmatched refractive index, a high refractive index layer, and optional low refractive index layer such as an antireflective film article.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: December 17, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Marc D. Radcliffe, Christopher P. Tebow, Christopher B. Walker, Jr., Mark J. Pellerite
  • Publication number: 20130261280
    Abstract: Fluorocarbon- and urethane-(meth)acryl-containing additives and hardcoats. The hardcoats are particularly useful as a surface layer on an optical device.
    Type: Application
    Filed: June 3, 2013
    Publication date: October 3, 2013
    Inventors: Thomas P. Klun, Naiyong Jing, Richard J. Pokorny, Zai-Ming Qiu, Mark J. Pellerite, William D. Coggio, Christopher B. Walker, Jr.
  • Publication number: 20130236697
    Abstract: The present invention concerns microstructured articles comprising nanostructures such an antiglare films, antireflective films, as well as microstructured tools and methods of making microstructured articles.
    Type: Application
    Filed: November 21, 2011
    Publication date: September 12, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Christopher B. Walker, JR., Vivian W. Jones, Tri D. Pham, Joseph T. Aronson, Corey D. Balts
  • Patent number: 8476398
    Abstract: Fluorocarbon- and urethane-(meth)acryl-containing additives and hardcoats. The hardcoats are particularly useful as a surface layer on an optical device.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: July 2, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas P. Klun, Naiyong Jing, Richard J. Pokorny, Zai-Ming Qiu, Mark J. Pellerite, William D. Coggio, Christopher B. Walker, Jr.
  • Patent number: 8470439
    Abstract: Antireflective films are described having a surface layer comprising a the reaction product of a polymerizable low refractive index composition comprising at least one free-radically polymerizable fluoropolymer and surface modified inorganic nanoparticles. A high refractive index layer is coupled to the low refractive index layer. In one embodiment, the high refractive index layer comprises surface modified inorganic nanoparticles dispersed in a crosslinked organic material. The antireflective film is preferably durable, exhibiting a haze of less than 1.0% after 25 wipes with steel wool using a 3.2 cm mandrel and a mass of 1000 grams.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: June 25, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Christopher B. Walker, Jr., Marc D. Radcliffe, Thomas P. Klun, Lan H. Liu, Richard J. Pokorny, William D. Coggio, Chuntao Cao, Mark J. Pellerite, Paul C. Kelley, Robert J. Fleming
  • Publication number: 20130135750
    Abstract: Optical films are described comprising a color shifting film comprising a matte surface layer; and light control microstructured layer disposed proximate the color shifting film The optical film may comprise a matte layer disposed on a major surface of the color shifting film and the light control micro structured layer disposed on the color shifting film at an interface that is free of adhesive. Alternatively, the optical film may comprise a film stack comprising a light control film having a light control microstructured layer, a color shifting film, and an adhesive layer between the light control film and color shifting film In some embodiments, the matte layer comprises matte particles. In other embodiments, the matte layer comprises a plurality of microstructures and no greater than 50% of the microstructures comprise embedded matte particles. In some embodiments, the microstructures are substantially free of embedded matte particles.
    Type: Application
    Filed: August 1, 2011
    Publication date: May 30, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Christopher B. Walker, JR., Michael E. Lauters, Joan M. Noyola
  • Publication number: 20130038939
    Abstract: The present invention concerns antireflective films comprising a high refractive index layer (60) and low refractive index layer (80) disposed on the high refractive index layer. The antireflective films have a microstructured surface (70) that can be derived from a microreplicated tool.
    Type: Application
    Filed: May 3, 2011
    Publication date: February 14, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Christopher B. Walker, JR., Christopher P. Tebow, Tri D. Pham, Steven H. Kong, Joseph T. Aronson, Kyle J. Lindstrom, Michael K. Gerlach, Michelle L. Toy, Taun L. McKenzie, Anthony M. Renstrom, Robert A. Yapel, Mitchell A.F. Johnson
  • Patent number: 8343622
    Abstract: Antireflective films comprising a flexible high refractive index layer that comprises at least 60 wt-% of inorganic nanoparticles, the nanoparticles having a refractive index of at least 1.60, dispersed in a crosslinked organic material. Also described are surface treated nanoparticles.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: January 1, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Lan H. Liu, Robert F. Kamrath, Encai Hao, Taun L. McKenzie, Marc D. Radcliffe, Richard J. Pokorny, Christopher B. Walker, Jr., Anthony M. Renstrom
  • Patent number: 8343624
    Abstract: Antireflective films are described having a surface layer comprising a the reaction product of a polymerizable low refractive index composition comprising at least one free-radically polymerizable fluoropolymer and surface modified inorganic nanoparticles. A high refractive index layer is coupled to the low refractive index layer. In one embodiment, the high refractive index layer comprises surface modified inorganic nanoparticles dispersed in a crosslinked organic material. The antireflective film is preferably durable, exhibiting a haze of less than 1.0% after 25 wipes with steel wool using a 3.2 cm mandrel and a mass of 1000 grams.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: January 1, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Christopher B. Walker, Jr., Marc D. Radcliffe, Thomas P. Klun, Lan H. Liu, Richard J. Pokorny, William D. Coggio, Chuntao Cao, Mark J. Pellerite, Paul C. Kelley, Robert J. Fleming
  • Publication number: 20120270980
    Abstract: Presently described are coating compositions comprising a polymerizable resin composition and a non-ionic unpolymerizable surfactant. In some embodiments, the coating comprises greater than 10 wt-% of non-ionic unpolymerizable surfactant. In other embodiments, the coating composition comprises an an additive comprising a silicone group or a fluorinated group and a hydrophobic group. Also described are articles comprising the cured coating compositions. In one embodiment, an article is described comprising a cured coating wherein the cured coating exhibits a property of an initially visible simulated fingerprint reducing in visibility in 1-20 minutes. Also described is a method of determining the fingerprint visibility of a coating composition and a polyacylate composition useful as an additive. In another embodiment a coated surface is described comprising a polymeric organic material comprising a plurality of pores wherein a portion of the pores are interconnected and comprise a lipophilic liquid.
    Type: Application
    Filed: June 19, 2012
    Publication date: October 25, 2012
    Inventors: Richard J. Pokorny, Thomas P. Klun, Christopher B. Walker, JR., David B. Olson, Joan M. Noyola, Michelle L. Toy, Evan L. Schwartz
  • Publication number: 20120154811
    Abstract: Presently described are coating compositions comprising a polymerizable resin composition and a non-ionic unpolymerizable surfactant. In some embodiments, the coating comprises greater than 10 wt-% of non-ionic unpolymerizable surfactant. In other embodiments, the coating composition comprises an an additive comprising a silicone group or a fluorinated group and a hydrophobic group. Also described are articles comprising the cured coating compositions. In one embodiment, an article is described comprising a cured coating wherein the cured coating exhibits a property of an initially visible simulated fingerprint reducing in visibility in 1-20 minutes. Also described is a method of determining the fingerprint visibility of a coating composition and a polyacylate composition useful as an additive. In another embodiment a coated surface is described comprising a polymeric organic material comprising a plurality of pores wherein a portion of the pores are interconnected and comprise a lipophilic liquid.
    Type: Application
    Filed: November 30, 2011
    Publication date: June 21, 2012
    Inventors: Richard J. Pokorny, Thomas P. Klun, Christopher B. Walker, JR., David B. Olson, Joan M. Noyola, Michelle L. Toy, Evan L. Schwartz
  • Patent number: 8202573
    Abstract: Presently described are self-assembling antireflective (“AR”) coating compositions comprising high refractive index surface modified nanoparticles. Also described are various articles such as protective films, optical displays, and windows, comprising such (e.g. dried and cured) AR coating.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: June 19, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Richard J. Pokorny, Thomas P. Klun, Marc D. Radcliffe, Robert F. Kamrath, Christopher B. Walker, Jr.
  • Publication number: 20120142883
    Abstract: Fluorocarbon- and urethane-(meth)acryl-containing additives and hardcoats. The hardcoats are particularly useful as a surface layer on an optical device.
    Type: Application
    Filed: February 15, 2012
    Publication date: June 7, 2012
    Inventors: Thomas P. Klun, Naiyong Jing, Richard J. Pokorny, Zai-Ming Qiu, Mark J. Pellerite, William D. Coggio, Christopher B. Walker, JR.
  • Publication number: 20120135210
    Abstract: Antireflective films are described having a surface layer comprising a the reaction product of a polymerizable low refractive index composition comprising at least one free-radically polymerizable fluoropolymer and surface modified inorganic nanoparticles. A high refractive index layer is coupled to the low refractive index layer. In one embodiment, the high refractive index layer comprises surface modified inorganic nanoparticles dispersed in a crosslinked organic material. The antireflective film is preferably durable, exhibiting a haze of less than 1.0% after 25 wipes with steel wool using a 3.2 cm mandrel and a mass of 1000 grams.
    Type: Application
    Filed: February 3, 2012
    Publication date: May 31, 2012
    Inventors: Christopher B. Walker, JR., Marc D. Radcliffe, Thomas P. Klun, Lan H. Liu, Richard J. Pokorny, William D. Coggio, Chuntao Cao, Mark J. Pellerite, Paul C. Kelley, Robert J. Fleming
  • Patent number: 8147966
    Abstract: Fluorocarbon- and urethane-(meth)acryl-containing additives and hardcoats. The hardcoats are particularly useful as a surface layer on an optical device.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: April 3, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas P. Klun, Naiyong Jing, Richard J. Pokorny, Zai-Ming Qiu, Mark J. Pellerite, William D. Coggio, Christopher B. Walker, Jr.
  • Patent number: 8137801
    Abstract: Antireflective films are described having a surface layer comprising a the reaction product of a polymerizable low refractive index composition comprising at least one fluorinated free-radically polymerizable material and surface modified inorganic nanoparticles. A high refractive index layer is coupled to the low refractive index layer. In one embodiment, the high refractive index layer comprises surface modified inorganic nanoparticles dispersed in a crosslinked organic material. The antireflective film is preferably durable, exhibiting a haze of less than 1.0% after 25 wipes with steel wool using a 3.2 cm mandrel and a mass of 1000 grams.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: March 20, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Christopher B. Walker, Jr., Marc D. Radcliffe, Thomas P. Klun, Lan H. Liu, Richard J. Pokorny, William D. Coggio, Chuntao Cao, Mark J. Pellerite, Paul C. Kelley, Robert J. Fleming
  • Publication number: 20120064296
    Abstract: The present invention concerns antiglare films having a microstructured surface.
    Type: Application
    Filed: May 28, 2010
    Publication date: March 15, 2012
    Inventors: Christopher B. Walker, JR., Christopher P. Tebow, Tri D. Pham, Steven H. Kong, Joseph T. Aronson, Kyle J. Lindstrom, Michael K. Gerlach, Michelle L. Toy, Taun L. McKenzie, Anthony M. Renstrom, Slah Jendoubi, Mitchell A.F. Johnson, Scott R. Kaytor, Robert A. Yapel, Joseph A. Zigal, Steven J. McMan, Steven D. Solomonson, Fei Lu, Gary T. Boyd
  • Publication number: 20100232021
    Abstract: Antireflective films are described having a surface layer comprising a the reaction product of a polymerizable low refractive index composition comprising at least one fluorinated free-radically polymerizable material and surface modified inorganic nanoparticles. A high refractive index layer is coupled to the low refractive index layer. In one embodiment, the high refractive index layer comprises surface modified inorganic nanoparticles dispersed in a crosslinked organic material. The antireflective film is preferably durable, exhibiting a haze of less than 1.0% after 25 wipes with steel wool using a 3.2 cm mandrel and a mass of 1000 grams.
    Type: Application
    Filed: June 6, 2007
    Publication date: September 16, 2010
    Inventors: Christopher B. Walker, JR., Marc D. Radcliffe, Thomas P. Klun, Lan H. Liu, Richard J. Pokorny, William D. Coggio, Chuntao Cao, Mark J. Pellerite, Paul C. Kelley, Robert J. Fleming