Patents by Inventor Gary Loh

Gary Loh 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: 20190027375
    Abstract: The present invention relates to fluoroolefin compositions useful as gases for CVD semiconductor manufacture, particularly for etching applications including methods for removing surface deposits from the interior of a chemical vapor deposition chamber by using an activated gas mixture, and methods for etching the surface of a semiconductor.
    Type: Application
    Filed: September 27, 2018
    Publication date: January 24, 2019
    Inventors: Sheng Peng, Gary Loh, Yoshimasa Oosaki
  • Publication number: 20180366339
    Abstract: The present invention relates to fluoroolefin compositions useful as gases for CVD semiconductor manufacture, particularly for etching applications including methods for removing surface deposits from the interior of a chemical vapor deposition chamber by using an activated gas mixture, and methods for etching the surface of a semiconductor.
    Type: Application
    Filed: August 28, 2018
    Publication date: December 20, 2018
    Inventors: Sheng Peng, Gary Loh, Yoshimasa Oosaki
  • Publication number: 20180334547
    Abstract: The present application discloses compositions comprising i) a foam blowing component; and ii) a polymer component, and more particularly to compositions comprising a i) foam blowing component comprising a hydrofluoroolefin (i.e., HFO), a hydrofluorocarbon (i.e., HFC), or any mixture thereof; and ii) a polymer component which is selected from polystyrene and acrylonitrile butadiene styrene.
    Type: Application
    Filed: May 3, 2018
    Publication date: November 22, 2018
    Inventors: Gary Loh, Saadat Ata
  • Patent number: 10109496
    Abstract: The present invention relates to fluoroolefin compositions useful as gases for CVD semiconductor manufacture, particularly for etching applications including methods for removing surface deposits from the interior of a chemical vapor deposition chamber by using an activated gas mixture, and methods for etching the surface of a semiconductor.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: October 23, 2018
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Sheng Peng, Gary Loh, Yoshimasa Oosaki
  • Publication number: 20160343579
    Abstract: The present invention relates to fluoroolefin compositions useful as gases for CVD semiconductor manufacture, particularly for etching applications including methods for removing surface deposits from the interior of a chemical vapor deposition chamber by using an activated gas mixture, and methods for etching the surface of a semiconductor.
    Type: Application
    Filed: December 22, 2014
    Publication date: November 24, 2016
    Inventors: SHENG PENG, GARY LOH, YOSHIMASA OOSAKI
  • Publication number: 20160284523
    Abstract: The present invention relates to hydrofluorolefin compositions useful for removing surface deposits in CVD chambers, and relates to methods for removing surface deposits from the interior of a chemical vapor deposition chamber by using an activated gas mixture created by activating a gas mixture in the chamber or in a remote chamber, where the gas mixture comprises a hydrofluorolefin.
    Type: Application
    Filed: March 28, 2014
    Publication date: September 29, 2016
    Inventors: GARY LOH, MARIO JOSEPH NAPPA, HAO-CHUN LEE, TAI-CHEN LEE
  • Publication number: 20150210818
    Abstract: The disclosure herein relates to cryogenic insulation foam compositions comprising a fluoroolefin blowing agent. These foams have good insulation properties at ?196° C., and comprise blowing agents that contain cis- or trans-1,1,1,4,4,4-hexafluoro-2-butene or 1-chloro-3,3,3-trifluoro-1-propene.
    Type: Application
    Filed: January 7, 2015
    Publication date: July 30, 2015
    Inventor: GARY LOH
  • Publication number: 20150014606
    Abstract: Azeotrope-like compositions are disclosed. The azeotrope-like compositions are mixtures of Z-1,1,1,4,4,4-hexafluoro-2-butene and E-1,1,1,4,4,4-hexafluoro-2-butene. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as dielectrics.
    Type: Application
    Filed: February 14, 2013
    Publication date: January 15, 2015
    Inventors: Mark L. Robin, Joseph Anthony Creazzo, Gary Loh
  • Publication number: 20140357747
    Abstract: A foam expansion agent composition is disclosed that includes Z-1,1,1,4,4,4-hexafluoro-2-butene and at least one high boiling point foam expansion agent present in an effective amount sufficient to produce a foam having a k-factor less than the k-factor of a foam produced using Z-1,1,1,4,4,4-hexafluoro-2-butene or the at least one high boiling point foam expansion agent alone at a given temperature. Also disclosed is a foam-forming composition that includes the foam expansion agent composition of this disclosure and an active hydrogen-containing compound having two or more active hydrogens. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of an effective amount of the foam-forming composition of this disclosure and a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam.
    Type: Application
    Filed: November 12, 2012
    Publication date: December 4, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Gary Loh, Joseph Anthony Creazzo
  • Patent number: 8658708
    Abstract: Foam-forming compositions containing azeotropic or azeotrope-like mixtures containing cis-1,1,1,4,4,4-hexafluoro-2-butene are disclosed. The foam-forming composition contains (a) an azeotropic or azeotrope-like mixture of cis-1,1,1,4,4,4-hexafluoro-2-butene with methyl formate, 1,1,1,3,3-pentafluorobutane, trans-1,2-dichloroethylene, pentane, isopentane, cyclopentane, HFC-245fa, or dimethoxymethane; and (b) an active hydrogen-containing compound having two or more active hydrogens. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of an effective amount of the foam-forming composition with a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam by reacting an effective amount of the foam-forming composition with a suitable polyisocyanate.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: February 25, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Gary Loh, Mark L. Robin, Joseph Anthony Creazzo
  • Patent number: 8299137
    Abstract: A foam-forming composition is disclosed which includes both cis-1,1,1,4,4,4-hexafluoro-2-butene and a poorly compatible active hydrogen-containing compound having two or more active hydrogens. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of effective amounts of the foam-forming composition and a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam by reacting an effective amount of the foam-forming composition with a suitable polyisocyanate.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: October 30, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Gary Loh, Joseph Anthony Creazzo
  • Publication number: 20120004336
    Abstract: Foam-forming compositions are disclosed which contain a mixture of cis-1,1,1,4,4,4-hexafluoro-2-butene and 1,1,1,3,3-pentafluoropropane. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of an effective amount of the foam-forming composition with a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam by reacting an effective amount of the foam-forming composition with a suitable polyisocyanate.
    Type: Application
    Filed: January 29, 2010
    Publication date: January 5, 2012
    Applicant: E.I. Du Pont De Nemours and Company
    Inventors: Gary Loh, Joseph Anthony Creazzo
  • Publication number: 20110269860
    Abstract: A foam expansion agent composition is disclosed that includes water and a hydrohaloolefin of the formula CF3CX?CHY, wherein X is selected from the group consisting of H, Cl and F, and Y is selected from the group consisting of H, Cl, F, CF3 and CF2CF3. Also disclosed is a foam-forming composition that includes the foam expansion agent composition of this disclosure and an active hydrogen-containing compound having two or more active hydrogens. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of an effective amount of the foam-forming composition of this disclosure and a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam. The process involves reacting an effective amount of the foam-forming composition of this disclosure and a suitable polyisocyanate. Also disclosed is a process for using the closed-cell polyurethane or polyisocyanurate polymer foam of this disclosure.
    Type: Application
    Filed: April 7, 2011
    Publication date: November 3, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: JOSEPH ANTHONY CREAZZO, GARY LOH
  • Publication number: 20110218261
    Abstract: Foam-forming compositions containing azeotropic or azeotrope-like mixtures containing cis-1,1,1,4,4,4-hexafluoro-2-butene are disclosed. The foam-forming composition contains (a) an azeotropic or azeotrope-like mixture of cis-1,1,1,4,4,4-hexafluoro-2-butene with methyl formate, 1,1,1,3,3-pentafluorobutane, trans-1,2-dichloroethylene, pentane, isopentane, cyclopentane, HFC-245fa, or dimethoxymethane; and (b) an active hydrogen-containing compound having two or more active hydrogens. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of an effective amount of the foam-forming composition with a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam by reacting an effective amount of the foam-forming composition with a suitable polyisocyanate.
    Type: Application
    Filed: December 17, 2008
    Publication date: September 8, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Gary Loh, Joseph Anthony Creazzo
  • Publication number: 20110124758
    Abstract: Foam-forming compositions are disclosed which contain mixtures of 2-chloro-3,3,3-trifluropropene and hydrocarbon. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of an effective amount of the foam-forming composition with a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam by reacting an effective amount of the foam-forming composition with a suitable polyisocyanate.
    Type: Application
    Filed: August 6, 2009
    Publication date: May 26, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Gary Loh, Joseph Anthony Creazzo
  • Publication number: 20100280141
    Abstract: A foam-forming composition is disclosed which includes both cis-1,1,1,4,4,4-hexafluoro-2-butene and a poorly compatible active hydrogen-containing compound having two or more active hydrogens. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of effective amounts of the foam-forming composition and a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam by reacting an effective amount of the foam-forming composition with a suitable polyisocyanate.
    Type: Application
    Filed: November 25, 2008
    Publication date: November 4, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Gary Loh, Joseph Anthony Creazzo
  • Publication number: 20100216904
    Abstract: Foam-forming compositions are disclosed which contain a mixture of 2-chloro-3,3,3-trifluoropropene and at least one hydrofluoroolefin. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of an effective amount of the foam-forming composition with a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam by reacting an effective amount of the foam-forming composition with a suitable polyisocyanate.
    Type: Application
    Filed: January 11, 2010
    Publication date: August 26, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: GARY LOH, Joseph Anthony Creazzo
  • Publication number: 20100210747
    Abstract: A foam-forming composition is disclosed which includes both trans-1,1,1,4,4,4-hexafluoro-2-butene and an active hydrogen-containing compound having two or more active hydrogens. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of effective amounts of the foam-forming composition and a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam comprising: reacting an effective amount of the foam-forming composition and a suitable polyisocyanate.
    Type: Application
    Filed: July 17, 2008
    Publication date: August 19, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Gary Loh, Joseph Anthony Creazzo
  • Publication number: 20090124719
    Abstract: Provided are polyurethane foams containing polytrimethylene ether segments derived from polytrimethylene ether glycols.
    Type: Application
    Filed: November 6, 2008
    Publication date: May 14, 2009
    Applicant: E. I. DUPONT DE NEMOURS AND COMPANY
    Inventors: Joseph Anthony Creazzo, Gary Loh, Hari Babu Sunkara