Patents by Inventor Steven Ittel

Steven Ittel 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).

  • PREPARATION OF SILVER PARTICLES USING THERMOPLASTIC POLYMERS
    Publication number: 20080060549
    Abstract: This invention relates to the synthesis and isolation of colloidal silver particles through the use of thermomorphic polymers and the resulting composition. It further relates to the use of the resulting composition in the preparation of inks for printing with silver-containing inks.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 13, 2008
    Inventor: Steven Ittel
  • Processes for printing arrays of substantially parallel lines
    Publication number: 20080036799
    Abstract: The present invention is directed to a process for combining spin printing and ink jet printing to print a plurality of largely parallel conductors, insulators, dielectrics, phosphors, emitters, and other elements that can be for electronics and display applications. The present invention also relates to a device used in this printing process. The present invention further includes devices made thereby.
    Type: Application
    Filed: March 23, 2006
    Publication date: February 14, 2008
    Inventor: Steven Ittel
  • INITIATION OF POLYMERIZATION BY HYDROGEN ATOM DONATION
    Publication number: 20070293595
    Abstract: This invention relates to the polymerization of vinylically-unsaturated monomers in the presence of a chain transfer catalysts where the polymerization process is initiated with hydrogen gas or a hydrogen atom donor rather than conventional free radical initiators. This invention further relates to an improved process for the polymerization of vinylically-unsaturated monomers in the presence of a chain transfer catalysts where the polymerization process is initiated with hydrogen gas.
    Type: Application
    Filed: August 31, 2007
    Publication date: December 20, 2007
    Applicant: E. I. duPont de Nemours and Company
    Inventors: Alexei Gridnev, Steven Ittel
  • Process for amination of acrylic macromonomers and products therefrom
    Publication number: 20070260067
    Abstract: Processes for forming adducts of amines with acrylic macromonomers are provided. Also provided are processes for using ring-closing reactions of the adducts to form lactams. The adducts are useful, for example, for making adhesives, surfactants, viscosity modifiers, processing aids, and other products.
    Type: Application
    Filed: December 12, 2006
    Publication date: November 8, 2007
    Inventors: Steven Ittel, Alexei Gridnev, Jennifer Anderson
  • CLAY-BINDING PEPTIDES AND METHODS OF USE
    Publication number: 20070249805
    Abstract: Combinatorially generated peptides are provided that have binding affinity for clay. The peptides may be used to deliver benefit agents to various clay surfaces.
    Type: Application
    Filed: April 4, 2007
    Publication date: October 25, 2007
    Inventors: Steven Ittel, Scott Cunningham, Pierre Rouviere, Stephen Fahnestock, John O'Brien, Eberhard Schneider, Gregor Schurmann, Peter Wagner
  • PROCESSES FOR HYDRAZINE ADDITION TO ACRYLIC MACROMONOMERS AND PRODUCTS THEREFROM
    Publication number: 20070161675
    Abstract: Processes for forming adducts of hydrazines with acrylic macromonomers are provided. Also provided are processes for using ring-closing reactions of the adducts to form aminolactams. The adducts are useful, for example, for making adhesives, surfactants, viscosity modifiers, processing aids, and other products.
    Type: Application
    Filed: December 12, 2006
    Publication date: July 12, 2007
    Applicant: E. I. DUPONT DE NEMOURS AND COMPANY
    Inventors: STEVEN ITTEL, ALEXEI GRIDNEV
  • Pigment dispersions containing aminated acrylic macromonomer dispersant
    Publication number: 20070142546
    Abstract: A pigment dispersion useful for forming coating compositions containing dispersed pigment, a carrier solvent and an aminated macromonomer dispersant (binder) is disclosed. The aminated macromonomer dispersant is preferably prepared by the reaction of terminally unsaturated macromonomers synthesized by cobalt-catalyzed chain transfer free radical polymerizations of methacrylic monomers with monomeric or oligomeric amines.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 21, 2007
    Inventors: Steven Ittel, Karyn Visscher, Alexei Gridnev
  • Processes for inkjet printing
    Publication number: 20070076021
    Abstract: Processes for ink jet printing are provided. The processes are suitable for printing of highly loaded inks, on relatively non-absorbent surfaces, and can provide images having finer and/or thinner features than images printed using conventional inkjet processes and conventional inks.
    Type: Application
    Filed: September 30, 2005
    Publication date: April 5, 2007
    Inventors: Edward Stancik, Steven Ittel
  • Spin-printing of electronic and display components
    Publication number: 20070054104
    Abstract: Processes for printing conductors, insulators, dielectrics, phosphors, emitters, and other elements containing elongated functional particles aligned along the axis of a spun fiber or film that can be for electronics and display applications are provided. Also provided are viscoelastic compositions used in the processes, and devices made therefrom.
    Type: Application
    Filed: March 23, 2006
    Publication date: March 8, 2007
    Inventors: Steven Ittel, Jennifer White
  • Preparation of silver particles using thermomorphic polymers
    Publication number: 20070045589
    Abstract: This invention relates to the synthesis and isolation of colloidal silver particles through the use of thermomorphic polymers and the resulting composition. It further relates to the use of the resulting composition in the preparation of inks for printing with silver-containing inks.
    Type: Application
    Filed: August 26, 2005
    Publication date: March 1, 2007
    Inventor: Steven Ittel
  • Polymerization of diisopropenylbenzene
    Publication number: 20060270815
    Abstract: Processes for preparing substantially linear polymers from diisopropenylbenzenes are provided. The polymers are useful in making a variety of products, including coatings, pigment dispersing agents, and stabilizers.
    Type: Application
    Filed: May 27, 2005
    Publication date: November 30, 2006
    Inventors: Steven Ittel, Alexei Gridnev
  • Spin-printing of etchants and modifiers
    Publication number: 20060264049
    Abstract: The present invention is directed to processes for printing compositions containing etchants or modifiers onto surfaces by spinning a filament from a viscoelastic polymer solution containing an etchant or modifier. The present invention also relates to viscoelastic compositions used in the printing processes, and devices made therefrom.
    Type: Application
    Filed: March 23, 2006
    Publication date: November 23, 2006
    Inventor: Steven Ittel
  • Ink jet printing of etchants and modifiers
    Publication number: 20060213870
    Abstract: The present invention is directed to processes for ink jet printing of etchant or modifier materials for creating patterns, particularly for electronics and display applications. The present invention also relates to devices made using the processes.
    Type: Application
    Filed: March 23, 2006
    Publication date: September 28, 2006
    Inventors: Robert Waldrop, Steven Ittel, Howard Simmons
  • Processes including initiation of polymerization by hydrogen atom donation
    Publication number: 20060111535
    Abstract: This invention relates to the polymerization of vinylically-unsaturated monomers in the presence of a chain transfer catalysts where the polymerization process is initiated with hydrogen gas or a hydrogen atom donor rather than conventional free radical initiators. This invention further relates to an improved process for the polymerization of vinylically-unsaturated monomers in the presence of a chain transfer catalysts where the polymerization process is initiated with hydrogen gas.
    Type: Application
    Filed: January 10, 2006
    Publication date: May 25, 2006
    Inventors: Alexei Gridnev, Steven Ittel
  • Initiation of polymerization by hydrogen atom donation
    Publication number: 20050209418
    Abstract: This invention relates to the polymerization of vinylically-unsaturated monomers in the presence of a chain transfer catalysts where the polymerization process is initiated with hydrogen gas or a hydrogen atom donor rather than conventional free radical initiators. This invention further relates to an improved process for the polymerization of vinylically-unsaturated monomers in the presence of a chain transfer catalysts where the polymerization process is initiated with hydrogen gas.
    Type: Application
    Filed: March 16, 2004
    Publication date: September 22, 2005
    Inventors: Alexei Gridnev, Steven Ittel
  • Spin-printing of electronic and display components
    Publication number: 20050089679
    Abstract: The present invention is directed to a process for printing conductors, insulators, dielectrics, phosphors, emitters, and other elements that may be for electronics and display applications. The present invention also relates to viscoelastic compositions used in this printing process. The present invention further includes devices made therefrom.
    Type: Application
    Filed: September 28, 2004
    Publication date: April 28, 2005
    Inventors: Steven Ittel, Jeffrey Crawford
  • Fiber-reinforced thermoplastic matrices
    Publication number: 20050058822
    Abstract: The invention relates to thermoplastic matrices reinforced with a mixture of natural and synthetic fibers.
    Type: Application
    Filed: August 3, 2004
    Publication date: March 17, 2005
    Inventor: Steven Ittel
  • Catalytic polymerization process
    Publication number: 20050014911
    Abstract: This invention relates to a process for controlling the architecture of copolymers of at least two unsaturated monomers, made by free radical polymerization in the presence of a cobalt-containing chain transfer agent, including the control of molecular weight degree of branching and vinyl end group termination, by varying at least one of the variables of molar ratio of monomers, their relative chain transfer constants, polymerization temperature and degree of conversion and amount of cobalt chain transfer agent; and polymers made thereby.
    Type: Application
    Filed: August 13, 2004
    Publication date: January 20, 2005
    Inventors: Graeme Moad, Ezio Rizzardo, Catherine Moad, Steven Ittel, Lech Wilczek, Alexei Gridnev