Patents by Inventor Gauri Lal

Gauri Lal 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: 20070123428
    Abstract: Compositions containing surfactant compounds according to formula (I) ROCH2CH(OH)CR1R2ZCR1R2CH(OH)CH2OR??(I), wherein Z is S, SO, or SO2, can have a range of equilibrium and/or dynamic surface tensions and a range of foaming performance attributes, depending upon the particular values of Z, R, R1, and R2. The compounds of formula (I) may be prepared by a process that includes reaction of a sulfide source such as a metal sulfide or bisulfide with an alkyl glycidyl ether. The compounds may be useful in any of a broad range of applications requiring the use of a surfactant.
    Type: Application
    Filed: January 25, 2007
    Publication date: May 31, 2007
    Inventors: Gauri Lal, Williams Raymond, Khalil Yacoub
  • Publication number: 20060223977
    Abstract: Partially and fully fluorinated alkyl substituted thienothiophene monomers (and polymers thereof) wherein the monomers are represented by the formula: wherein R is a partially or fully fluorinated primary, secondary or tertiary alkyl having from 1 to 8 carbon atoms; and X and X? are independently selected from the group consisting of H, F, Cl, Br, I, MgCl, —COR?, —C?CH, and a polymerizable cyclic pi-conjugated carbon-ring structure optionally comprising S, N or O heteroatoms; wherein R? is a primary, secondary or tertiary alkyl having from 1 to 6 carbon atoms, and R? is H or a primary, secondary or tertiary alkyl having from 1 to 6 carbon atoms.
    Type: Application
    Filed: May 5, 2006
    Publication date: October 5, 2006
    Inventors: Steffen Zahn, Gauri Lal, William Burgoyne, Kristen Minnich, Andrew Nordquist, Lloyd Robeson, Francis Waller
  • Publication number: 20060079431
    Abstract: Compositions containing surfactant compounds according to formula (I) R4OCH2CH(OH)CR2R3ZR1 ??(I) wherein Z is S, SO, or SO2, can have a range of equilibrium and/or dynamic surface tensions and a range of foaming performance attributes, depending upon the particular values of Z, R1, R2, R3, and R4. The compounds of formula (I) may be prepared by a process that includes reaction of a thiol with a glycidyl ether.
    Type: Application
    Filed: October 8, 2004
    Publication date: April 13, 2006
    Inventors: Gauri Lal, Williams Raymond, Khalil Yacoub, Evelyn Paulsen
  • Publication number: 20060071199
    Abstract: Thienothiophene monomers having an SF5 group and conducting oligomers and polymers formed by the polymerization of such monomers and their use as hole injection materials, charge transport materials, or as semiconductors. The compound may be of the formula: where X and X? are independently H, halogen atoms (e.g., F, Cl, Br, and I), MgCl, MgBr, MgI, Sn(R?)3, where R? is C1-6 alkyl or —OC1-6 alkyl, boronic acid, boronic ester, —CH=CHR? (where R? is H or C1-6 alkyl), —OC1-6 alkyl, —COOC1-6 alkyl, —S—COR?? and —COR?? (where R?? is H or C1-6 alkyl), —C?CH, or polymerizable aromatic rings (such as phenyl, naphthalene, pyrrole, dithiophene, thienothiophene, thiophene and so forth.
    Type: Application
    Filed: October 4, 2004
    Publication date: April 6, 2006
    Inventors: Steffen Zahn, Andrew Nordquist, Kristen Minnich, Gauri Lal, William Burgoyne, Axel Klauck-Jacobs
  • Publication number: 20060074250
    Abstract: Thienothiophene monomers having an SF5 group and conducting oligomers and polymers formed by the polymerization of such monomers and their use as hole injection materials, charge transport materials, or as semiconductors. The compound may be of the formula: where X and X? are independently H, halogen atoms (e.g., F, Cl, Br, and I), MgCl, MgBr, MgI, Sn(R?)3, where R? comprises C1-6 alkyl or —OC1-6 alkyl, boronic acid, boronic ester, —CH?CHR? (where R? comprises H or C1-6 alkyl), —OC1-6 alkyl, —COOC1-6 alkyl, —S—COR?? and —COR?? (where R?? comprises H or C1-6 alkyl), —C?CH, or polymerizable aromatic rings (such as phenyl, naphthalene, pyrrole, dithiophene, thienothiophene, thiophene and so forth).
    Type: Application
    Filed: September 20, 2005
    Publication date: April 6, 2006
    Inventors: Steffen Zahn, Andrew Nordquist, Kristen Minnich, Gauri Lal, William Burgoyne, Axel Klauck-Jacobs
  • Publication number: 20060069285
    Abstract: This invention relates to 2-pentafluorosulfanylnapthalene, substituted derivatives thereof and to a process for producing naphthalene carrying an SF5 group. A 3-step process is employed wherein 1,4-dihydronaphthalene is reacted with pentafluorosulfanyl halide. Next the resulting 3-halo-2-pentafluorosulfanylnaphthalene or derivative is converted to 2-pentafluorosulfanyl-1,4-dihydronaphthalene or derivative by treatment with a base and subsequently transformed into pentafluorosulfanylnaphthalene by removing hydrogen atoms.
    Type: Application
    Filed: September 30, 2004
    Publication date: March 30, 2006
    Applicant: Air Products and Chemicals Inc
    Inventors: Gauri Lal, Kristen Minnich
  • Publication number: 20060020145
    Abstract: Compositions containing surfactant compounds according to formula (I) ROCH2CH(OH)CR1R2ZCR1R2CH(OH)CH2OR (I), wherein Z is S, SO, or SO2, can have a range of equilibrium and/or dynamic surface tensions and a range of foaming performance attributes, depending upon the particular values of Z, R, R1, and R2. The compounds of formula (I) may be prepared by a process that includes reaction of a sulfide source such as a metal sulfide or bisulfide with an alkyl glycidyl ether. The compounds may be useful in any of a broad range of applications requiring the use of a surfactant.
    Type: Application
    Filed: March 10, 2005
    Publication date: January 26, 2006
    Inventors: Gauri Lal, Williams Raymond, Khalil Yacoub
  • Publication number: 20060020144
    Abstract: Compositions containing surfactant compounds according to formula (I) ROCH2CH(OH)CR1R2ZCR1R2CH(OH)CH2OR ??(I), wherein Z is S, SO, or SO2, can have a range of equilibrium and/or dynamic surface tensions and a range of foaming performance attributes, depending upon the particular values of Z, R, R1, and R2. The compounds of formula (I) may be prepared by a process. that includes reaction of a sulfide source such as a metal sulfide or bisulfide with an alkyl glycidyl ether.
    Type: Application
    Filed: July 26, 2004
    Publication date: January 26, 2006
    Inventors: Gauri Lal, Williams Rene Raymond, Khalil Yacoub
  • Publication number: 20050209419
    Abstract: Partially and fully fluorinated alkyl substituted thienothiophene monomers (and polymers thereof) wherein the monomers are represented by the formula: wherein R is a partially or fully fluorinated primary, secondary or tertiary alkyl having from 1 to 8 carbon atoms; and X and X? are independently selected from the group consisting of H, F, Cl, Br, I, MgCl, MgBr, Mgl, Sn(R?)3, CH?CHR?, —OR?, —COOR?, —S—COR?, —B(OR?)2, —COR?, —C?CH, and a polymerizable cyclic pi-conjugated carbon-ring structure optionally comprising S, N or O heteroatoms; wherein R? is a primary, secondary or tertiary alkyl having from 1 to 6 carbon atoms, and R? is H or a primary, secondary or tertiary alkyl having from 1 to 6 carbon atoms.
    Type: Application
    Filed: May 13, 2005
    Publication date: September 22, 2005
    Inventors: Steffen Zahn, Gauri Lal, William Burgoyne, Kristen Minnich, Andrew Nordquist, Lloyd Robeson, Francis Waller
  • Publication number: 20050165260
    Abstract: This invention relates to a process for the preparation of 1,1-difluoroolefins, e.g., difluorovinyl cycloaliphatic compounds such as difluorovinylcyclohexane and derivatives by the dehydrofluorination of a trifluoromethyl-substituted cycloaliphatic compound and the resulting compositions. This method utilizes a “sterically hindered super-base” system represented by the formula M+?NRR?; where M is Na or K and R is a secondary, or tertiary alkyl or cycloalkyl group of amines for effecting dehydrofluorination of the trifluoromethyl group leading to the difluorovinyl based cycloaliphatic compounds. The sterically hindered super base can be formed by the, in situ, reaction of a sodium or potassium alkoxide, e.g., KtBuO with a lithium dialkylamide where the lithium is bonded to nitrogen atom of an amine bearing secondary or tertiary aliphatic groups.
    Type: Application
    Filed: January 23, 2004
    Publication date: July 28, 2005
    Inventors: Gauri Lal, Kathryn Hayes, Guido Pez
  • Publication number: 20050107632
    Abstract: A new route has been found leading to the formation of pentafluorosulfuranyl arylenes. In its broadest aspect the process comprises: effecting dehydrohalogenation or dehydrogenation of a pentafluorosulfuranyl compound represented by either of the structures: wherein R1 is H, C1-10 alkyl, C1-10 alkoxy, C1-10 thionyl. C1-10 alkyl ether, list more, R2, R4 and R5 are H and R3 is H repeated R1 to form the pentafluorosufuranyl arylene represented by the structures: wherein R1-R5 are as represented in compound represented by the structures A and B.
    Type: Application
    Filed: November 14, 2003
    Publication date: May 19, 2005
    Inventors: Gauri Lal, Kristen Minnich