Patents by Inventor Lee A. Silverman

Lee A. Silverman 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: 8871335
    Abstract: Provided are solar control laminates comprising a solar control film and a polymeric sheet. The solar control film comprises a polymeric film coated with a coating comprising inorganic infrared absorbing nanoparticles. Preferably, inorganic infrared absorbing nanoparticles comprise nanoparticles of antimony tin oxide (ATO), indium tin oxide (ITO), lanthanum hexaboride (LaB6) or mixtures thereof. Optionally, the solar control laminate also comprises a rigid sheet, such as a glass sheet.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: October 28, 2014
    Assignee: Kuraray America Inc.
    Inventors: Jerrel C. Anderson, Richard A. Fugiel, Richard A. Hayes, Lee A. Silverman
  • Patent number: 8858833
    Abstract: The invention is directed to a process of combining an aqueous solution of a fluoride with an aqueous solution of a host multi-valent metal salt and an aqueous solution of a salt forming a reactant mixture resulting in a precipitate of aqueously insoluble rare-earth doped multi-valent metal fluoride nanoparticles.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: October 14, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Changzai Chi, Daniel Albert Green, Kurt Richard Mikeska, Lee A. Silverman
  • Patent number: 8344175
    Abstract: The invention relates to compounds of Formula (I): The invention further relates to liquid crystal compositions comprising compounds of Formula (I); compositions further comprising one or more chiral compounds; and polymer networks derived from the polymerization of the liquid crystal compositions. Another embodiment relates to processes for providing compounds of Formula (I).
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: January 1, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Marc B. Goldfinger, Jose Manuel Rodriguez-Parada, Lee A. Silverman
  • Patent number: 8334393
    Abstract: The invention relates to compounds of formula (I): wherein R1 and R2 are each independently selected from the group: H, F, Cl and CH3; n1 and n2 are each independently integers 3 to 20; q and r are each independently integers 0, 1 or 2, with the proviso that q+r is ?1; D is a divalent chiral radical selected from the group: wherein R3 is a C1 to C6 straight or branched chain alkyl group; and each B1 and B2 is a divalent radical independently selected from the group: R4-substituted-1,4-phenyl, wherein R4 is H, —CH3 or —OCH3; 2,6-naphthyl; and 4,4?-biphenyl; with the provisos that when q+r=3, at least one of B1 and B2 is R4-substituted-1,4-phenyl; and when q+r=4, at least two of B1 and B2 are R4-substituted-1,4-phenyl. The invention further relates to liquid crystal compositions comprising compounds of formula (I) and polymer networks derived from the polymerization of the liquid crystal compositions.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: December 18, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Marc B. Goldfinger, Jose Manuel Rodriguez-Parada, Lee A. Silverman, Kai Qi
  • Patent number: 8178206
    Abstract: Provided is a solar control composition comprising an infrared absorbing phthalocyanine compound or naphthalocyanine compound and a resin having a modulus from 20,000 psi (138 MPa) to 1000 psi (7 MPa) and solar control laminates comprising the solar control composition of the invention.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: May 15, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Richard Allan Hayes, Richard A. Fugiel, Thomas R. Phillips, Lee A. Silverman, Jason S. Wall
  • Patent number: 7988881
    Abstract: Provided are multilayer laminates having one or more layers comprising twisted nematic liquid crystals and one or more layers of a polymeric sheet. The twisted nematic liquid crystal layers reflect infrared radiation. Thus, the multilayer laminates are useful to reduce the transmission of infrared energy. For example, in some embodiments the multilayer laminates are useful as windows to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building. Preferably, the multilayer laminates retain one or more of the beneficial properties of safety glass. The multilayer laminates may include additional layers such as infrared absorbing layers, half wave plates, and the like, to minimize the transmission of infrared energy. The multilayer laminates may also include further additional layers such as polymeric films, polymeric sheets, rigid sheets, and the like.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: August 2, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kai Qi, Lee A. Silverman, Marc B. Goldfinger, Richard Allen Hayes, Jerrel C. Anderson
  • Publication number: 20110163267
    Abstract: The invention relates to compounds of formula (I): wherein R1 and R2 are each independently selected from the group: H, F, Cl and CH3; n1 and n2 are each independently integers 3 to 20; q and r are each independently integers 0, 1 or 2, with the proviso that q+r is ?1; D is a divalent chiral radical selected from the group: wherein R3 is a C1 to C6 straight or branched chain alkyl group; and each B1 and B2 is a divalent radical independently selected from the group: R4-substituted-1,4-phenyl, wherein R4 is H, —CH3 or —OCH3; 2,6-naphthyl; and 4,4?-biphenyl; with the provisos that when q+r=3, at least one of B1 and B2 is R4-substituted-1,4-phenyl; and when q+r=4, at least two of B1 and B2 are R4-substituted-1,4-phenyl. The invention further relates to liquid crystal compositions comprising compounds of formula (I) and polymer networks derived from the polymerization of the liquid crystal compositions.
    Type: Application
    Filed: March 17, 2011
    Publication date: July 7, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Marc B. GOLDFINGER, Jose Manuel RODRIGUEZ-PARADA, Lee A. SILVERMAN, Kai QI
  • Publication number: 20110114885
    Abstract: The invention relates to compounds of Formula (I): The invention further relates to liquid crystal compositions comprising compounds of Formula (I); compositions further comprising one or more chiral compounds; and polymer networks derived from the polymerization of the liquid crystal compositions. Another embodiment relates to processes for providing compounds of Formula (I).
    Type: Application
    Filed: January 25, 2011
    Publication date: May 19, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: MARC B. GOLDFINGER, Jose Manuel Rodriguez-Parada, Lee A. Silverman
  • Patent number: 7914700
    Abstract: The invention relates to compounds of formula (I): wherein R1 and R2 are each independently selected from the group: H, F, Cl and CH3; n1 and n2 are each independently integers 3 to 20; q and r are each independently integers 0, 1 or 2, with the proviso that q+r is ?1; D is a divalent chiral radical selected from the group: wherein R3 is a C1 to C6 straight or branched chain alkyl group; and each B1 and B2 is a divalent radical independently selected from the group: R4-substituted-1,4-phenyl, wherein R4 is H, —CH3 or —OCH3; 2,6-naphthyl; and 4,4?-biphenyl; with the provisos that when q+r=3, at least one of B1 and B2 is R4-substituted-1,4-phenyl; and when q+r=4, at least two of B1 and B2 are R4-substituted-1,4-phenyl. The invention further relates to liquid crystal compositions comprising compounds of formula (I) and polymer networks derived from the polymerization of the liquid crystal compositions.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: March 29, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Marc B. Goldfinger, Jose Manuel Rodriguez-Parada, Lee A. Silverman, Kai Qi
  • Patent number: 7879256
    Abstract: The invention relates to compounds of Formula (I): The invention further relates to liquid crystal compositions comprising compounds of Formula (I); compositions further comprising one or more chiral compounds; and polymer networks derived from the polymerization of the liquid crystal compositions. Another embodiment relates to processes for providing compounds of Formula (I).
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: February 1, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Marc B. Goldfinger, Jose Manuel Rodriguez-Parada, Lee A. Silverman, Kai Qi
  • Publication number: 20100307670
    Abstract: Provided are multilayer laminates having one or more layers comprising twisted nematic liquid crystals and one or more layers of a polymeric sheet comprising a polymer with a modulus of 20,000 psi (138 MPa) or less. The twisted nematic liquid crystal layers reflect infrared radiation. Thus, the multilayer laminates are useful to reduce the transmission of infrared energy. For example, in some embodiments the multilayer laminates are useful as windows to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building. Preferably, the multilayer laminates retain the beneficial properties of safety glass. The multilayer laminates may include additional layers such as infrared absorbing layers, half wave plates, and the like, to minimize the transmission of infrared energy. The multilayer laminates may also include further additional layers such as polymeric films, polymeric sheets, rigid sheets, and the like.
    Type: Application
    Filed: June 17, 2010
    Publication date: December 9, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: LEE A SILVERMAN, Marc B. Goldfinger, Richard A. Hayes
  • Publication number: 20100263790
    Abstract: Provided are multilayer laminates having one or more layers comprising twisted nematic liquid crystals and one or more layers of a polymeric sheet comprising a polymer with a modulus between 20,000 psi (138 MPa) and 100,000 psi (690 MPa). The twisted nematic liquid crystal layers reflect infrared radiation. Thus, the multilayer laminates are useful to reduce the transmission of infrared energy. For example, in some embodiments the multilayer laminates are useful as windows to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building. Preferably, the multilayer laminates retain the beneficial properties of safety glass. The multilayer laminates may include additional layers such as infrared absorbing layers, half wave plates, and the like, to minimize the transmission of infrared energy. The multilayer laminates may also include further additional layers such as polymeric films, polymeric sheets, rigid sheets, and the like.
    Type: Application
    Filed: July 1, 2010
    Publication date: October 21, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Marc B. Goldfinger, Richard A. Hayes, Lee A. Silverman
  • Patent number: 7759414
    Abstract: Provided are compositions comprising infrared absorptive inorganic nanoparticles and an ethylene copolymer, and methods to produce the compositions. The infrared absorptive inorganic nanoparticles preferably include antimony tin oxide (ATO), indium tin oxide (ITO), lanthanum hexaboride (LaB6), or mixtures thereof. Also provided are polymer blends, polymeric films and sheets, solar control laminates, and processes to produce the polymer blends, polymeric films and sheets and solar control laminates.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: July 20, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Richard A. Hayes, Thomas R. Phillips, Lee A. Silverman
  • Patent number: 7749577
    Abstract: Provided are multilayer laminates having one or more layers comprising twisted nematic liquid crystals and one or more layers of a polymeric sheet comprising a polymer with a modulus between 20,000 psi (138 MPa) and 100,000 psi (690 MPa). The twisted nematic liquid crystal layers reflect infrared radiation. Thus, the multilayer laminates are useful to reduce the transmission of infrared energy. For example, in some embodiments the multilayer laminates are useful as windows to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building. Preferably, the multilayer laminates retain the beneficial properties of safety glass. The multilayer laminates may include additional layers such as infrared absorbing layers, half wave plates, and the like, to minimize the transmission of infrared energy. The multilayer laminates may also include further additional layers such as polymeric films, polymeric sheets, rigid sheets, and the like.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: July 6, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Marc B. Goldfinger, Richard A. Hayes, Lee A. Silverman
  • Patent number: 7744970
    Abstract: Provided are multilayer laminates having one or more layers comprising twisted nematic liquid crystals and one or more layers of a polymeric sheet comprising a polymer with a modulus of 20,000 psi (138 MPa) or less. The twisted nematic liquid crystal layers reflect infrared radiation. Thus, the multilayer laminates are useful to reduce the transmission of infrared energy. For example, in some embodiments the multilayer laminates are useful as windows to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building. Preferably, the multilayer laminates retain the beneficial properties of safety glass. The multilayer laminates may include additional layers such as infrared absorbing layers, half wave plates, and the like, to minimize the transmission of infrared energy. The multilayer laminates may also include further additional layers such as polymeric films, polymeric sheets, rigid sheets, and the like.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: June 29, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Lee A. Silverman, Marc B. Goldfinger, Richard A. Hayes
  • Patent number: 7736532
    Abstract: Provided is a composition comprising a nonmicellar twisted nematic liquid crystal having cholesteric near infrared-reflecting properties and at least one near infrared absorptive material. This composition reduces the transmission of near infrared radiation. The composition can be used as a layer, optionally in conjunction with polymeric films, polymeric sheets, rigid sheets, and the like, to form multilayer laminates. In some embodiments these multilayer laminates are useful as solar control windows or window films to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: June 15, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Lee A. Silverman, Marc B. Goldfinger, Richard A. Hayes, Mark E. Lewittes, Wayne E. Marsh
  • Publication number: 20100096604
    Abstract: Provided is a solar control composition comprising an infrared absorbing phthalocyanine compound or naphthalocyanine compound and a resin having a modulus from 20,000 psi (138 MPa) to 1000 psi (7 MPa) and solar control laminates comprising the solar control composition of the invention.
    Type: Application
    Filed: December 22, 2009
    Publication date: April 22, 2010
    Inventors: Richard Allan Hayes, Richard A. Fugiel, Thomas R. Phillips, Lee A. Silverman, Jason S. Wall
  • Publication number: 20100098953
    Abstract: Provided are compositions comprising infrared absorptive inorganic nanoparticles and an ethylene copolymer, and methods to produce the compositions. The infrared absorptive inorganic nanoparticles preferably include antimony tin oxide (ATO), indium tin oxide (ITO), lanthanum hexaboride (LaB6), or mixtures thereof. Also provided are polymer blends, polymeric films and sheets, solar control laminates, and processes to produce the polymer blends, polymeric films and sheets and solar control laminates.
    Type: Application
    Filed: July 14, 2005
    Publication date: April 22, 2010
    Inventors: Richard A. Hayes, Thomas R. Phillips, Lee A. Silverman
  • Publication number: 20100079721
    Abstract: Provided are multilayer laminates having one or more layers comprising twisted nematic liquid crystals and one or more layers of a polymeric sheet. The twisted nematic liquid crystal layers reflect infrared radiation. Thus, the multilayer laminates are useful to reduce the transmission of infrared energy. For example, in some embodiments the multilayer laminates are useful as windows to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building. Preferably, the multilayer laminates retain one or more of the beneficial properties of safety glass. The multilayer laminates may include additional layers such as infrared absorbing layers, half wave plates, and the like, to minimize the transmission of infrared energy. The multilayer laminates may also include further additional layers such as polymeric films, polymeric sheets, rigid sheets, and the like.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Inventors: KAI QI, LEE A. SILVERMAN, MARC B. GOLDFINGER, RICHARD ALLEN HAYES, JERREL C. ANDERSON
  • Patent number: 7622192
    Abstract: Provided is a solar control composition comprising an infrared absorbing phthalocyanine, naphthalocyanine or rylene compound and an ethylene acid copolymer or an ionomer of an ethylene acid copolymer. Further provided are solar control laminates comprising the solar control composition of the invention.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: November 24, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Richard A. Fugiel, Richard Allen Hayes, Walter Mahler, Thomas R. Phillips, Lee A. Silverman