Patents Represented by Attorney Carolyn A. Fischer

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  • Patent number: 7399609
    Abstract: The invention relates to methods of detecting staphylococcus.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: July 15, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Brinda B. Lakshmi, Angela K. Dillow, M. Benton Free, John S. Huizinga, Patrick A. Mach, Dasaratha V. Sridhar
  • Low refractive index coating composition for use in antireflection polymer film coatings and manufacturing method
    Patent number: 7374812
    Abstract: A silicone-modified fluoropolymer is formed by first dissolving a fluoropolymer in an organic solvent, the fluoropolymer having at least one monomer of vinylidene fluoride coupled to a hexafluoropropylene monomer unit, and subsequently reacting the mixture with an amino silane coupling agent to form an aminosilane-modified fluoropolymer. The aminosilane fluoropolymer is subsequently heated and partially condensed with an oligomer of a silane compound including alkoxy silane. The resultant composition is suitable for use as a low refractive index layer in an antireflection coating on an optical substrate.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: May 20, 2008
    Assignee: 3M Innovative Properties Company
    Inventor: Kazuhiko Mizuno
  • Method of making retroreflective sheeting and slot die apparatus
    Patent number: 7364421
    Abstract: The invention relates to a method of making retroreflective sheeting and other articles prepared from casting a fluid synthetic resin onto a tool having a microstructured surface with a slot die apparatus. The invention further relates to a slot die apparatus.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: April 29, 2008
    Assignee: 3M Innovative Properties Comapny
    Inventors: Stanley C. Erickson, James C. Breister, Gregory H. Van Erem, David W. Meitz, Stephen W. Mohn, Paul DeRoussel
  • Microstructured article comprising a polymerized composition having low glass transition temperature
    Patent number: 7361409
    Abstract: An article comprising a microstructured surface, wherein the microstructures compris the reaction product of a of a polymerizable composition comprising at least one oligomer or monomer that comprises at least two (meth)acrylate groups and at least one monofunctional (meth)acryl monomer and the reaction product has a glass transition temperature of less than 35° C.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: April 22, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Takaki Sugimoto, Clinton L Jones, Brant U Kolb
  • Fluoropolymer coating compositions with multifunctional fluoroalkyl crosslinkers for anti-reflective polymer films
    Patent number: 7351471
    Abstract: An economic, optically transmissive, stain and ink repellent, durable low refractive index fluoropolymer composition for use in an antireflection film or coupled to an optical display. In one aspect of the invention, the composition is formed from the reaction product of a fluoropolymer and a fluoroalkyl containing multi-olefinic crosslinker. In another aspect of the invention, the composition further includes surface modified inorganic nanoparticles.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: April 1, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Naiyong Jing, Chuntao Cao, Tatsuo Fukushi, Timothy J. Tatge, Christopher B. Walker, Jr., Thomas P. Klun, William J. Schultz, Zai-Ming Qiu
  • Method of accelerated testing of illuminated device components
    Patent number: 7345750
    Abstract: A method of selection of an illuminator for use in an accelerated light stability test device chamber is described that employs measuring and comparing the spectral irradiance of at least one light source for use in an illuminated device and at least one illuminator suitable for use in an accelerated weathering chamber and selecting an illuminator having certain irradiance criteria. Also described are methods of accelerated light stability testing of an illuminated display components and an accelerated light stability tcst device.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: March 18, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Warren D. Ketola, Richard M. Fischer, Jr.
  • Pavement marking comprising modified isocyanate
    Patent number: 7342056
    Abstract: Composition useful for pavement markings comprising a binder and material selected from the group of fillers, extenders, pigments and combinations thereof; and retroreflective elements. The binder comprising a first component comprising the reaction product of an excess of at least one polyisocyanate and at least one hydroxy group-containing material, and a second component comprising at least one polyamine.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: March 11, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Suman K. Patel, James G. Carlson
  • High refractive index pressure-sensitive adhesives
    Patent number: 7335425
    Abstract: The present invention provides pressure-sensitive adhesives having a refractive index of at least 1.48. The pressure-sensitive adhesives comprise at least one monomer containing a substituted or an unsubstituted aromatic moiety.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: February 26, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: David B. Olson, Bettie C. Fong, Ying-Yuh Lu, Cheryl L. Moore, Todd R. Williams
  • Article and comprising fluorochemical surface layer
    Patent number: 7332217
    Abstract: The invention relates to articles such as protective films and displays having a fluorochemical surface layer comprising an antistatic agent and the reaction products of at least one fluoropolyether (meth)acryl compound and at least 50 wt-% of non-fluorinated crosslinking agent(s).
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: February 19, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: William D. Coggio, Thomas P. Klun, Mark J. Pellerite, George G. I. Moore, Cheryl L. S. Elsbernd, Sharon Wang, Richard S. Buckanin, Christopher B. Walker, Jr., Naiyong Jing, Zai-Ming Qiu
  • Polymerizable oligomeric urethane compositions comprising nanoparticles
    Patent number: 7326448
    Abstract: Presently described are microstructured articles such as a brightness enhancing film or optical turning film. The microstructured articles comprise a brightness enhancing polymerized structure comprising the reaction product of a composition comprising an organic component having at least one oligomeric urethane (meth)acrylate and surface modified silica nanoparticles.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: February 5, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Clinton L. Jones, Brant U. Kolb, David B. Olson, Emily S. Goenner
  • Low refractive index fluoropolymer coating compositions for use in antireflective polymer films
    Patent number: 7323514
    Abstract: An economic, optically transmissive, stain and ink repellent, durable low refractive index fluoropolymer composition for use in an antireflection film or coupled to an optical display. In one aspect of the invention, the composition is formed from the reaction product of a fluoropolymer or reactive fluoropolymer, an amino silane ester coupling agent or ester equivalent, a multi-olefinic crosslinker, and optional surface modified inorganic particles or sol gel precursors.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: January 29, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Naiyong Jing, Chuntao Cao, Tatsuo Fukushi, Timothy J. Tatge, William D. Coggio, Christopher B. Walker, Jr., Thomas P. Klun, William J. Schultz, Zai-Ming Qiu
  • Method of making retroreflective sheeting and articles
    Patent number: 7309135
    Abstract: The invention relates to a method of making retroreflective sheeting and other articles prepared from casting a moldable synthetic resin onto a tool having a microstructured surface.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: December 18, 2007
    Assignee: 3M Innovative Properties Company
    Inventor: Kenneth L. Smith
  • Durable optical element
    Patent number: 7309517
    Abstract: A durable optical film or element includes a polymerized structure having a microstructured surface and a plurality of surface modified colloidal nanoparticles of silica, zirconia, or mixtures thereof. Display devices including the durable microstructured film are also described.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: December 18, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Clinton L. Jones, Brant U. Kolb, Emily S. Goenner, John T. Brady, Christopher A. Haak
  • High refractive index monomers for optical applications
    Patent number: 7297810
    Abstract: The present invention includes optical coatings containing ultraviolet curable monomers employing a bromine substituted fluorene structure. The fluorene backbone of the monomers of the present invention may also be functionalized with one or more polymerizable or reactive functionalities, and most readily at the 9 position. Compositions of the present invention include the reactive bromosubstituted fluorenes combined with inorganic nanoparticles, particularly nanoparticles with reactive surface modifiers exhibiting polymerizable functionality. Reactive high index nanoparticles such as surface modified zirconia are contemplated.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: November 20, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Christopher B. Walker, Jr., Roger A. Mader, Emily S. Goenner, Brant U. Kolb, Sharon Wang, Joan M. Noyola
  • Antiglare coating and articles
    Patent number: 7294405
    Abstract: The present invention relates to articles comprising an antiglare layer, coating compositions suitable for making antiglare layers, methods of making an antiglare article, and methods of making antiglare coating compositions. In some embodiments the article is a (e.g. illuminated) display article such as a touch screen. The antiglare layer comprises aggregate inorganic oxide particles in a cured inorganic polymer matrix.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: November 13, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Paul J. Richter, Darran R. Cairns, Frank J. Bottari
  • Antiglare coating and articles
    Patent number: 7291386
    Abstract: The present invention relates to articles comprising an antiglare layer, coating compositions suitable for making antiglare layers, methods of making an antiglare article, and methods of making antiglare coating compositions. In some embodiments the article is a (e.g. illuminated) display article such as a touch screen. The antiglare layer comprises aggregate silica particle in a cured inorganic polymer matrix.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: November 6, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Paul J. Richter, Darran R. Cairns, Frank J. Bottari
  • Method of forming microstructures on a substrate and a microstructured assembly used for same
    Patent number: 7288013
    Abstract: A method of forming microstructures on a substrate is disclosed. A microstructured assembly that may be used in the method for forming microstructures on a substrate is also disclosed. The methods and assemblies of the present disclosure can reduce the amount of air entrapped in barrier ribs formed on substrates used in Plasma Display devices.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: October 30, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Chikafumi Yokoyama, Takaki Sugimoto
  • Methods for testing durable optical elements
    Patent number: 7289202
    Abstract: A method includes providing a polymerized optical film structure having a microstructured surface, forming a scratch having a length on the microstructured surface to form a scratched optical film, illuminating the scratched optical film to form an illuminated scratch, measuring a plurality of scratch contrast ratio values along the length of the illuminated scratch with a detector, and determining a maximum scratch contrast ratio from the plurality of scratch contrast ratio values along the length of the scratch.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: October 30, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Michael S. Groess, Stephan J. Pankratz
  • Polymerizable compositions comprising nanoparticles
    Patent number: 7282272
    Abstract: Polymerizable compositions comprising nanopartilces particularly useful for brightness enhancing films.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: October 16, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Clinton L. Jones, David B. Olson, Emily S. Goenner, Brant U. Kolb, John T. Brady
  • Liquid pavement marking compositions
    Patent number: RE40088
    Abstract: A pavement marking composition, methods of applying, and pavement markings produced therefrom. The composition is a two-part coating composition having an amine component including one or more aspartic ester amines and optionally one or more amine-functional coreactants, an isocyanate component including one or more polyisocyanates, and material selected from the group of fillers, extenders, pigments, and combinations thereof.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: February 19, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Mark D. Purgett, David C. May, Mark D. Zender, Daniel J. Willie, Tom R. Borden