Patents by Inventor Patricia Savu

Patricia Savu 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).

  • Publication number: 20080107907
    Abstract: A low refractive index composition that forms a low refractive index layer on an optical display is formed having a co-crosslinked interpenetrating polymer network of a fluoropolymer phase and an acrylate phase. The fluoropolymer phase is preferably formed from fluoropolymers based on THV or FKM and having either a degree of unsaturation and/or containing a reactive cure site monomer in its polymer backbone. The acrylate phase includes a multifunctional acrylate crosslinker, and more preferably includes a perfluoropolyether acrylate crosslinker. The formed low refractive index layer has improved interfacial adhesion to other layers or substrates contained in the optical display. Further, the mechanical strength and scratch resistance of the either of above low refractive index compositions can be further enhanced through the incorporation of surface functionalized inorganic particle into the formed layer.
    Type: Application
    Filed: January 10, 2008
    Publication date: May 8, 2008
    Inventors: William Coggio, Thomas Klun, George Moore, Naiyong Jing, Chuntao Cao, Sharon Wang, Patricia Savu, Lan Liu, Joan Noyola
  • Publication number: 20080078747
    Abstract: Described are anionic N-substituted fluorinated sulfonamide surfactants, and use thereof in cleaning and in acid etch solutions. The cleaning and etch solutions are used with a wide variety of substrates, for example, in the cleaning and etching of silicon oxide-containing substrates.
    Type: Application
    Filed: October 3, 2007
    Publication date: April 3, 2008
    Inventors: Patricia Savu, William Lamanna, Michael Parent
  • Publication number: 20080039654
    Abstract: The present invention provides polyoxyalkylene ammonium imide or methide salts and their use as antistatic agents. Another embodiment provides articles comprising these salts, and processes for making and using these salts.
    Type: Application
    Filed: July 23, 2007
    Publication date: February 14, 2008
    Inventors: Patricia Savu, William Lamanna, Thomas Klun
  • Publication number: 20080033078
    Abstract: The present invention provides polyoxyalkylene ammonium imide or methide salts and their use as antistatic agents. Another embodiment provides articles comprising these salts, and processes for making and using these salts.
    Type: Application
    Filed: July 23, 2007
    Publication date: February 7, 2008
    Inventors: Patricia Savu, William Lamanna, Thomas Klun
  • Publication number: 20080026583
    Abstract: The disclosure pertains to compositions and methods for modifying or refining the surface of a wafer suited for semiconductor fabrication. The compositions include working liquids useful in modifying a surface of a wafer suited for fabrication of a semiconductor device. In some embodiments, the working liquids are aqueous solutions of initial components substantially free of loose abrasive particles, the components including water, a surfactant, and a pH buffer exhibiting at least one pKa greater than 7. In certain embodiments, the pH buffer includes a basic pH adjusting agent and an acidic complexing agent, and the working liquid exhibits a pH from about 7 to about 12. In further embodiments, the disclosure provides a fixed abrasive article comprising a surfactant suitable for modifying the surface of a wafer, and a method of making the fixed abrasive article. Additional embodiments describe methods that may be used to modify a wafer surface.
    Type: Application
    Filed: August 15, 2007
    Publication date: January 31, 2008
    Inventors: L. Hardy, Heather Kranz, Thomas Wood, David Kaisaki, John Gagliardi, John Clark, Patricia Savu, Philip Clark
  • Publication number: 20070142512
    Abstract: A coatable composition that comprises water, a film-forming organic polymer, and a leveling agent comprising an anionic species represented by the formula wherein Rf represents a perfluoroalkyl group having from 4 to 6 carbon atoms, and R represents H or an alkyl group having from 1 to 18 carbon atoms.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Inventors: Patricia Savu, Michael Parent, William Lamanna
  • Publication number: 20060148996
    Abstract: A low refractive index composition that forms a low refractive index layer on an optical display is formed having a co-crosslinked interpenetrating polymer network of a fluoropolymer phase and an acrylate phase. The fluoropolymer phase is preferably formed from fluoropolymers based on THV or FKM and having either a degree of unsaturation and/or containing a reactive cure site monomer in its polymer backbone. The acrylate phase includes a multifunctional acrylate crosslinker, and more preferably includes a perfluoropolyether acrylate crosslinker. The formed low refractive index layer has improved interfacial adhesion to other layers or substrates contained in the optical display. Further, the mechanical strength and scratch resistance of the either of above low refractive index compositions can be further enhanced through the incorporation of surface functionalized inorganic particle into the formed layer.
    Type: Application
    Filed: December 30, 2004
    Publication date: July 6, 2006
    Inventors: William Coggio, Thomas Klun, George Moore, Naiyong Jing, Chuntao Cao, Sharon Wang, Patricia Savu, Lan Liu, Joan Noyola
  • Publication number: 20050197273
    Abstract: Described are anionic N-substituted fluorinated sulfonamide surfactants, and use thereof in cleaning and in acid etch solutions. The cleaning and etch solutions are used with a wide variety of substrates, for example, in the cleaning and etching of silicon oxide-containing substrates.
    Type: Application
    Filed: March 3, 2004
    Publication date: September 8, 2005
    Inventors: Patricia Savu, William Lamanna, Michael Parent
  • Publication number: 20050181620
    Abstract: Novel aqueous, acid etch solutions comprising a fluorinated surfactant are provided. The etch solutions are used with a wide variety of substrates, for example, in the etching of silicon oxide-containing substrates.
    Type: Application
    Filed: March 16, 2005
    Publication date: August 18, 2005
    Inventors: Michael Parent, Patricia Savu, Richard Flynn, Zhongxing Zhang, William Lamanna, Zai-Ming Qiu, George I. Moore
  • Publication number: 20050152032
    Abstract: A composition having at least about 10 percent perfluoroalkylsulfonamideoethyl acrylate; at least about 5 percent aliphatic urethane acrylate oligomer; at least about 1 percent acrylate monomer; and less than about 84 percent other reactive and non-reactive components. The composition, with the addition of a light absorbing pigment, is particularly useful as a light absorbing adhesive in an optical element such as a rear projection screen that incorporates totally internally reflecting structures to disperse the light passing through the screen.
    Type: Application
    Filed: January 24, 2005
    Publication date: July 14, 2005
    Inventors: Peter Olofson, Patrick Thomas, Amy Gates, George Moore, Patricia Savu
  • Publication number: 20050145134
    Abstract: A latex paint composition comprises (a) a polymer having interpolymerized units that comprise units derived from styrene, methyl styrene, vinyl, or combinations thereof and units derived from one or more acrylates, methacrylates, acrylonitrile, or combinations thereof, (b) hiding pigment, (c) non-cellulosic thickener, and (d) at least about 0.01 weight per volume percent fluorochemical acrylic polymer additive comprising: (1) at least one perfluoroalkyl moiety selected from the group consisting of heptafluoropropanesulfonamido, nonafluorobutanesulfonamido, undecafluoropentanesulfonamido, and tridecafluorohexanesulfonamido moieties, (2) at least one polyoxyalkylene block comprising at least one (a) alkyleneoxy moiety or (b) alkylene group interrupted by a carboxyester moiety, e.g., a caprolactone acrylate, and (3) at least one water-solubilizing group. Also, methods for providing paint coatings with such compositions.
    Type: Application
    Filed: December 30, 2003
    Publication date: July 7, 2005
    Inventors: Jason Petrin, Patricia Savu
  • Publication number: 20050148491
    Abstract: Described are fluorochemical surfactants derived from nonafluorobutanesulfonyl fluoride that contain polyalkyleneoxy side chains and may be copolymerized with acrylic acid or methacrylic acid to form polyacrylates or polymethacrylates. The surfactants surprisingly lower the surface tension of water and other liquids in the same or similar low values achieved by premier surfactants such as those derived from perfluorooctane sulfonyl fluoride.
    Type: Application
    Filed: February 7, 2005
    Publication date: July 7, 2005
    Inventors: Patricia Savu, Sandra Etienne
  • Publication number: 20050128580
    Abstract: A composition having at least about 10 percent perfluoroalkylsulfonamideoethyl acrylate; at least about 5 percent aliphatic urethane acrylate oligomer; at least about 1 percent acrylate monomer; and less than about 84 percent other reactive and non-reactive components. The composition, with the addition of a light absorbing pigment, is particularly useful as a light absorbing adhesive in an optical element such as a rear projection screen that incorporates totally internally reflecting structures to disperse the light passing through the screen.
    Type: Application
    Filed: December 11, 2003
    Publication date: June 16, 2005
    Inventors: Peter Olofson, Patrick Thomas, Amy Gates, George Moore, Patricia Savu