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: 9976065
    Abstract: There is provided an adhesive composition comprising at least 50 wt % of an aqueous dispersion of an amorphous polyurethane having a Tg below 25° C.; and a water dispersible cross-linker, where the adhesive composition has a peel retention of greater than or equal to 5% according to the Water/IPA Exposure Test.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: May 22, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jingjing Ma, Mary M. Caruso Dailey, Dmitri D. Iarikov, Alexander J. Kugel, Yongshang Lu, Christopher B. Walker, Jr.
  • Publication number: 20180044465
    Abstract: There is provided an article a binder resin layer comprising an aliphatic polyurethane polymer comprising a plurality of soft segments, and a plurality of hard segments, where the soft segments comprise polycarbonate polyol; and a plurality of microspheres partially embedded and adhered to a first major surface of the binder resin layer, wherein the specific chemical identities and relative amounts of the segments and moieties of the aliphatic polyurethane polymer are sufficient to impart a glass transition temperature of 10° C. or less in the article and a storage modulus in the article that changes less than 15 MPa from 25° C. to 175° C.
    Type: Application
    Filed: June 15, 2015
    Publication date: February 15, 2018
    Inventors: Christopher B. Walker, Jr., John C. Clark, Alexander J. Kugel, Vivek Krishnan, Abdullahi A. Mohamud
  • Patent number: 9868832
    Abstract: There is provided an article comprising at least a first surface having a first binder layer selected from at least one of linear resins and resins having low cross link densities, where the first binder layer has a first major surface opposite a second major surface; and a plurality of microspheres at least partially embedded in the first major surface of the first binder layer. There is also provided an article comprising a first surface having a first binder layer selected from at least one of linear resins and resins having low cross link densities; and a plurality of microspheres at least partially embedded a the first major surface of the first binder layer, where for at least a portion of the first major surface the plurality of microspheres covers 30% to 50% of that portion, and the microspheres are substantially uniformly spaced.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: January 16, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Christopher B. Walker, Jr., Joseph D. Rule, Vivek Krishnan, John C. Clark, Steven J. McMan, Toheeb B Alabi, Charlie C. Ho, Ryan E. Marx, Alexander J. Kugel
  • Publication number: 20170247587
    Abstract: There is provided an adhesive composition comprising at least 50 wt % of an aqueous dispersion of an amorphous polyurethane having a Tg below 25° C.; and a water dispersible cross-linker, where the adhesive composition has a peel retention of greater than or equal to 5% according to the Water/IPA Exposure Test.
    Type: Application
    Filed: June 5, 2015
    Publication date: August 31, 2017
    Inventors: Jingjing Ma, Mary M. Caruso Dailey, Dmitri D. Iarikov, Alexander J. Kugel, Yongshang Lu, Christopher B. Walker, Jr.
  • Publication number: 20170204234
    Abstract: There is provided an article comprising at least a first surface having a first binder layer selected from at least one of linear resins and resins having low cross link densities, where the first binder layer has a first major surface opposite a second major surface; and a plurality of microspheres at least partially embedded in the first major surface of the first binder layer. There is also provided an article comprising a first surface having a first binder layer selected from at least one of linear resins and resins having low cross link densities; and a plurality of microspheres at least partially embedded a the first major surface of the first binder layer, where for at least a portion of the first major surface the plurality of microspheres covers 30% to 50% of that portion, and the microspheres are substantially uniformly spaced.
    Type: Application
    Filed: April 5, 2017
    Publication date: July 20, 2017
    Inventors: Christopher B. Walker, JR., Joseph D. Rule, Vivek Krishnan, John C. Clark, Steven J. McMan, Toheeb B. Alabi, Charlie C. Ho, Ryan E. Marx, Alexander J. Kugel
  • Publication number: 20170174854
    Abstract: There is provided an article having a compliant article where the compliant article comprises an polymer layer and a first layer disposed along a first major surface of the polymer layer; and a plurality of microspheres partially embedded and adhered to a major surface of the first layer opposite the surface that is disposed along the first major surface of the polymer layer, wherein the article has a compression modulus of less than or equal to 0.5 MPa. There is also provided an article having a compliant article where the compliant article comprises a polymer layer; and a plurality of microspheres partially embedded and adhered to a major surface of the compliant article, where the article has a compression modulus of less than or equal to 0.5 MPa, and further where the article is a decorative article.
    Type: Application
    Filed: April 1, 2015
    Publication date: June 22, 2017
    Inventors: John C. Clark, Alexander J. Kugel, Benjamin R. Coonce, Vivek Krishnan, Christopher B. Walker, JR.
  • Patent number: 9650499
    Abstract: There is provided an article comprising at least a first surface having a first binder layer selected from at least one of linear resins and resins having low cross link densities, where the first binder layer has a first major surface opposite a second major surface; and a plurality of microspheres at least partially embedded in the first major surface of the first binder layer. For at least a portion of the first major surface, the plurality of micro spheres may cover 30% to 50% of that portion, and the microspheres may be substantially uniformly spaced.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: May 16, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Christopher B. Walker, Jr., Joseph D. Rule, Vivek Krishnan, John C. Clark, Steven J. McMan, Toheeb B. Alabi, Charlie C. Ho, Ryan E. Marx, Alexander J. Kugel
  • Publication number: 20160347026
    Abstract: There is provided an article a binder resin layer comprising an aliphatic polyurethane polymer comprising a plurality of soft segments, and a plurality of hard segments, where the soft segments comprise poly(alkoxy) polyol, and where the poly(alkoxy) polyol is essentially free of crosslinker; and a plurality of microspheres partially embedded and adhered to a first major surface of the binder resin layer, wherein the specific chemical identities and relative amounts of the segments and moieties of the aliphatic polyurethane polymer are sufficient to impart a glass transition temperature of 10° C. or less in the article and a storage modulus in the article that changes less than 15 MPa from 25° C. to 175° C.
    Type: Application
    Filed: February 13, 2015
    Publication date: December 1, 2016
    Applicant: 3M INNOVAVTIVE PROPERTIES COMPANY
    Inventors: Alexander J. Kugel, John C. Clark, Vivek Krishnan, Christopher B. Walker, JR.
  • Publication number: 20160347042
    Abstract: There is provided a thermoformable article comprising at least a first surface having a binder resin layer comprising a fluorine-containing polymer, where the binder resin layer has a first major surface opposite a second major surface; and a plurality of microspheres partially and adhered to the first major surface of the binder resin layer; where the fluorine-containing polymer is a partially fluorinated polymer derived from at least one fluorine containing monomer and two or more non-fluorinated monomers having at least one active hydrogen functional group, and further wherein at least one but not all of the active hydrogen functional groups are reacted with at least one curing agent having latent functionality. In some instances the curing agent comprises polyisocyanate. There is also provided a thermoset article derived from such thermoformable articles.
    Type: Application
    Filed: February 13, 2015
    Publication date: December 1, 2016
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Christopher B. Walker, Jr., John C. Clark, Thomas P. Klun, Steven J. McMan, Abdullahi A. Mohamud, Alexander J. Kugel, Vivek Krishnan
  • Patent number: 9383482
    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: Grant
    Filed: May 3, 2011
    Date of Patent: July 5, 2016
    Assignee: 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
  • Publication number: 20160145458
    Abstract: There is provided an article comprising at least a first surface having a fluorine-containing polymeric binder resin layer and a plurality of microspheres partially embedded in a first major surface of the binder resin layer and adhered thereto; wherein the fluorine-containing polymer is derived in part from at least one partially fluorinated, or non-fluorinated, monomer; and wherein the article exhibits a stain resistance to yellow mustard at elevated temperature and humidity as measured by the change in b* of less than 50. There are also provided such articles wherein the fluorine-containing polymer is derived in part from at least one partially fluorinated, or non-fluorinated, monomer; and wherein the fluorine content along the polymeric backbone of the fluorine-containing polymer is from about 27% to 72% by weight. There are also provided such articles wherein the article is a thermoformable article exhibiting chemical resistance according to ASTM D5402-06.
    Type: Application
    Filed: June 26, 2014
    Publication date: May 26, 2016
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Christopher B. Walker, JR., John C. Clark, Tatsuo Fukushi, Thomas P. Klun, Vivek Krishnan, Alexander J. Kugel, Lan H. Liu, Jingjing Ma, Steven J. McMan
  • Patent number: 9296905
    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: Grant
    Filed: March 28, 2014
    Date of Patent: March 29, 2016
    Assignee: 3M Innovative Properties Company
    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: 9296904
    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: Grant
    Filed: June 19, 2012
    Date of Patent: March 29, 2016
    Assignee: 3M Innovative Properties Company
    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: 9247736
    Abstract: A multi-layer film for reducing microbial contamination on a surface. The multi-layer film can include a core layer having a first surface and a second surface opposite the first surface, an adhesive layer disposed adjacent the first surface of the core layer, and an antimicrobial layer disposed adjacent the second surface. The antimicrobial layer can include a cross-linked matrix and an antimicrobial agent dispersed within the cross-linked matrix, where the cross-linked matrix is derived from a polymerizable precursor comprising a material selected from the group consisting of a polymerizable monomer, a polymerizable polymer having a molecular weight of about 1,000 or less, and combinations thereof.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: February 2, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Caroline M. Ylitalo, Mahfuza B. Ali, Christopher B. Walker, Jr., Gerald R. A. Hofmann, Matthew T. Scholz, Alphonsus V. Pocius, Linda K. M. Olson
  • Publication number: 20150343502
    Abstract: Described herein is a construction comprising a microsphere layer comprising a plurality of microspheres wherein the microspheres comprise glass, ceramic, and combinations thereof; a first polymer layer comprising a first polymer, wherein the plurality of microspheres is partially embedded in the first polymer layer; and an undercoat layer therebetween the microsphere layer and first polymer layer, wherein the undercoat layer comprises a plurality of silica nanoparticles. Also disclosed herein are articles comprising the construction and methods of making thereof. In one embodiment, the constructions of the present disclosure have good anti-soiling and abrasion resistant properties.
    Type: Application
    Filed: December 19, 2013
    Publication date: December 3, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: John C. Clark, Vivek Krishnan, Christopher B. Walker, JR.
  • Publication number: 20150232646
    Abstract: There is provided an article comprising at least a first surface having a first binder layer selected from at least one of linear resins and resins having low cross link densities, where the first binder layer has a first major surface opposite a second major surface; and a plurality of microspheres at least partially embedded in the first major surface of the first binder layer. For at least a portion of the first major surface, the plurality of micro spheres may cover 30% to 50% of that portion, and the microspheres may be substantially uniformly spaced.
    Type: Application
    Filed: October 4, 2013
    Publication date: August 20, 2015
    Inventors: Christopher B. Walker, JR., Joseph D. Rule, Vivek Krishnan, John C. Clark, Steven J. McMan, Bola T. Alabi, Charlie C. Ho, Ryan E. Marx, Alexander J. Kugel
  • Patent number: 8981151
    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: April 8, 2014
    Date of Patent: March 17, 2015
    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.
  • Publication number: 20140221689
    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: April 8, 2014
    Publication date: August 7, 2014
    Applicant: 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.
  • Publication number: 20140212651
    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: March 28, 2014
    Publication date: July 31, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    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: 8742022
    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: Grant
    Filed: November 30, 2011
    Date of Patent: June 3, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Richard J. Pokorny, Thomas P. Klun, Christopher B. Walker, Jr., David B. Olson, Joan M. Noyola, Michelle L. Toy, Evan L. Schwartz