Patents by Inventor Thomas J. Pinnavaia

Thomas J. Pinnavaia 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: 6585952
    Abstract: Mesoporous hexagonal, cubic or wormhole aluminosilicates derived from zeolite seeds using an ionic structure directing agent are described. The aluminum in the structures is stable so that the framework of the structures does not collapse when heated in the presence of water or water vapor (steam) The steam stable aluminosilicates can be used as acid catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other cracking of organic compounds.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: July 1, 2003
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Thomas J. Pinnavaia, Wenzhong Zhang, Yu Liu
  • Publication number: 20030095908
    Abstract: Novel lamellar mesoporous silica compositions which can contain functional inorganic elements and organic functional groups as part of the lamellar silica framework structure are described. The compositions are prepared using gemini amine surfactants as templates or structure directing agents. The compositions have novel high temperature and hydrothermal stability and unique fundamental particle structures.
    Type: Application
    Filed: October 17, 2002
    Publication date: May 22, 2003
    Applicant: Board of Trustees operating Michigan State University
    Inventors: Thomas J. Pinnavaia, Seong-Su Kim, Wenzhong Zhang
  • Publication number: 20030095907
    Abstract: Novel lamellar mesoporous silica compositions which can contain functional inorganic elements and organic functional groups as part of the lamellar silica framework structure are described. The compositions are prepared using gemini amine surfactants as templates or structure directing agents. The compositions have novel high temperature and hydrothermal stability and unique fundamental particle structures.
    Type: Application
    Filed: October 17, 2002
    Publication date: May 22, 2003
    Applicant: Board of Trustees operating Michigan State University
    Inventors: Thomas J. Pinnavaia, Seong-Su Kim, Wenzhong Zhang
  • Publication number: 20030054948
    Abstract: Mesostructured and microporous to mesoporous organofunctionalized silica compositions are described. The compositions incorporate the organofunctional group L as part of a LSiO3 unit in the framework of the compositions. In addition the compositions incorporate the organofunctional group R as part of a O3Si—R—siO3 unit in the framework of the compositions. The compositions are useful as molecular sieves, supports for catalysts and numerous other applications requiring an organo group on surfaces of a silica.
    Type: Application
    Filed: May 24, 2001
    Publication date: March 20, 2003
    Applicant: Board of Trustees operating Michigan State University
    Inventors: Thomas J. Pinnavaia, Yutaka Mori
  • Publication number: 20030052047
    Abstract: Mesoporous crystalline alumina compositions and process for the preparation thereof are described. The compositions are useful as catalysts and absorbents.
    Type: Application
    Filed: July 27, 2001
    Publication date: March 20, 2003
    Applicant: Board of Trustees operating Michigan State University
    Inventors: Thomas J. Pinnavaia, Zhaorong Zhang, Randall Hicks
  • Patent number: 6528034
    Abstract: Novel lamellar mesoporous silica compositions which can contain functional inorganic elements and organic functional groups as part of the lamellar silica framework structure are described. The compositions are prepared using gemini amine surfactants as templates or structure directing agents. The compositions have novel high temperature and hydrothermal stability and unique fundamental particle structures.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: March 4, 2003
    Assignee: Board of Trustees of Michigan State University
    Inventors: Thomas J. Pinnavaia, Seong-Su Kim, Wenzhong Zhang
  • Patent number: 6506485
    Abstract: Porous inorganic silica foam compositions are derived from water soluble silicate precursors and swollen non-ionic polymer templates are described. The compositions are useful as catalyst supports and as catalysts in hydrocarbon cracking and organic reactions, among other applications.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: January 14, 2003
    Assignee: Board of Trustees of Michigan State University
    Inventors: Thomas J. Pinnavaia, Thomas R. Pauly, Seong-Su Kim
  • Publication number: 20020187098
    Abstract: Mesoporous hexagonal, cubic or wormhole aluminosilicates derived from zeolite seeds using an ionic structure directing agent are described. The aluminum in the structures is stable so that the framework of the structures does not collapse when heated in the presence of water or water vapor (steam). The steam stable aluminosilicates can be used as acid catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other cracking of organic compounds.
    Type: Application
    Filed: April 23, 2002
    Publication date: December 12, 2002
    Applicant: Board of Trustees operating Michigan State University
    Inventors: Thomas J. Pinnavaia, Wenzhong Zhang, Yu Liu
  • Publication number: 20020182143
    Abstract: Mesoporous hexagonal, cubic or wormhole aluminosilicates derived from zeolite seeds using an ionic structure directing agent are described. The aluminum in the structures is stable so that the framework of the structures does not collapse when heated in the presence of water or water vapor (steam). The steam stable aluminosilicates can be used as acid catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other cracking of organic compounds.
    Type: Application
    Filed: April 23, 2002
    Publication date: December 5, 2002
    Applicant: Board of Trustees operating Michigan State University
    Inventors: Thomas J. Pinnavaia, Wenzhong Zhang, Yu Liu
  • Publication number: 20020182144
    Abstract: Mesoporous hexagonal, cubic or wormhole aluminosilicates derived from zeolite seeds using an ionic structure directing agent are described. The aluminum in the structures is stable so that the framework of the structures does not collapse when heated in the presence of water or water vapor (steam). The steam stable aluminosilicates can be used as acid catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other cracking of organic compounds.
    Type: Application
    Filed: April 23, 2002
    Publication date: December 5, 2002
    Applicant: Board of Trustees operating Michigan State University
    Inventors: Thomas J. Pinnavaia, Wenzhong Zhang, Yu Liu
  • Publication number: 20020160176
    Abstract: Porous inorganic silica foam compositions are derived from water soluble silicate precursors and swollen non-ionic polymer templates are described. The compositions are useful as catalyst supports and as catalysts in hydrocarbon cracking and organic reactions, among other applications.
    Type: Application
    Filed: April 25, 2002
    Publication date: October 31, 2002
    Applicant: Board of Trustees Operating Michigan State University
    Inventors: Thomas J. Pinnavaia, Thomas R. Pauly, Seong-Su Kim
  • Patent number: 6465387
    Abstract: A method for preparing synthetic, semi-crystalline, porous inorganic oxide composition containing a reactive organic silane moiety which is on the surface of pore walls. The composition is prepared from a poly(oxyalkylene) based surfactant and a hydrolyzable organic silane. The surfactant is preferably a poly(ethylene) oxide, a poly(propylene) oxide polymer or mixtures thereof. The organic silane is preferably mercaptopropylsilane. The compositions are particularly useful as adsorbents, and catalysts.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: October 15, 2002
    Assignee: Board of Trustees of Michigan State University
    Inventors: Thomas J. Pinnavaia, Louis Mercier
  • Publication number: 20020131930
    Abstract: Porous hexagonal, cubic, lamellar, wormhole, or cellular foam aluminosilicates, gallosilicates and titanosilicates derived from protozeolitic seeds or zeolite fragments using an organic porogen directing agent are described. The porous aluminosilicates optionally also can contain zeolite crystals depending upon the aging of the protozeolitic seeds. The silicon and aluminum, gallium or titanium centers in the structures are stable so that the framework of the structure does not collapse when heated in the presence of water or water vapor (steam). The steam stable compositions can be used as catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other reactions of organic compounds.
    Type: Application
    Filed: December 19, 2001
    Publication date: September 19, 2002
    Applicant: Michigan State University
    Inventors: Thomas J. Pinnavaia, Wenzhong Zhang, Yu Liu
  • Patent number: 6414069
    Abstract: Hybrid layered silicates with galleries between the layers containing both inorganic and organic ions with different compositions in different galleries are described. The resulting hybrid layered silicates provide economical starting materials for polymers and the like.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: July 2, 2002
    Assignee: Board of Trustees of Michigan University
    Inventors: Thomas J. Pinnavaia, Zhen Wang
  • Patent number: 6413902
    Abstract: A neutral templating route to mesoporous molecular sieves based on H-bonding and self-assembly between neutral primary amine or diamine surfactants (S°) and neutral inorganic precursors (I°) has been used to prepare hexagonal and lamellar mesoporous silicas with site isolated transition metal centers. The templating of neutral metallosilicate precursors (I°) with neutral diamine surfactants (S°—S°) affords thermally stable pillared lamellar metallosilicates exhibiting complementary framework-confined microporosity and textural mesoporosity while at the same time also providing for template recovery by solvent extraction.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: July 2, 2002
    Assignee: Board of Trustees of Michigan State University
    Inventors: Thomas J. Pinnavaia, Peter T. Tanev, Ying Liang
  • Patent number: 6410473
    Abstract: Crystalline inorganic oxide compositions having regular wormhole-like channels are described. The formation of the mesoporous composition is accomplished by hydrogen bonding between a neutral amine template in water and a water miscible organic solvent and a neutral inorganic oxide precursor, wherein there is an excess of an alkanol or water used to dissolve the template. The template can be removed and recycled.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: June 25, 2002
    Assignee: Board of Trustees of Michigan State University
    Inventors: Thomas J. Pinnavaia, Wenzhong Zhang, Thomas R. Pauly, Peter T. Tanev
  • Patent number: 6391278
    Abstract: A neutral templating route to mesoporous molecular sieves based on H-bonding and self-assembly between neutral primary amine or diamine surfactants (S°) and neutral inorganic precursors (I°) has been used to prepare hexagonal and lamellar mesoporous silicas with site isolated transition metal centers. This templating approach allows for the preparation of hexagonal or hexagonal-like mesoporous oxidation catalysts with large framework wall thickness of at least about 17 Å, small elementary particle size (≦400 Å), and unique combinations of framework-confined mesopores and textural mesopores while at the same time providing for facile recovery of the neutral template by simple solvent extraction.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: May 21, 2002
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Thomas J. Pinnavaia, Peter T. Tanev, Wenzhong Zhang, Jialiang Wang, Malama Chibwe
  • Publication number: 20020051745
    Abstract: Hybrid mesoporous molecular sieve silica compositions which have intergrown wormhole domains and lamellar or hexagonal domains and prepared from mixtures of water soluble silicate precursors and amine surfactant templates through a neutralization reaction are described. The silica compositions are stable above 600° C.
    Type: Application
    Filed: January 18, 2001
    Publication date: May 2, 2002
    Applicant: Board of Trustees operating Michigan State University
    Inventors: Thomas J. Pinnavaia, Thomas R. Pauly, Seong-Su Kim
  • Publication number: 20020018747
    Abstract: Mesoporous hexagonal, cubic, lamellar, wormhole, or cellular foam aluminosilicates, gallosilicates and titanosilicates derived from protozeolitic seeds using an ionic structure directing agent are described. The silicon and aluminum, gallium or titanium centers in the structures are stable so that the framework of the structure does not collapse when heated in the presence of water or water vapor (steam). The steam stable compositions can be used as catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other reactions of organic compounds.
    Type: Application
    Filed: February 21, 2001
    Publication date: February 14, 2002
    Applicant: Board of Trustees operating Michigan State University
    Inventors: Thomas J. Pinnavaia, Wenzhong Zhang, Yu Liu
  • Publication number: 20010043901
    Abstract: A process for the preparation of mesostructured molecular sieve silicas from inorganic silicon precursors and polyoxyethylene oxide based polymers is described. The silicas are stable upon calcination to 600° to 800° C. The silicas are useful in refining processes.
    Type: Application
    Filed: April 13, 2001
    Publication date: November 22, 2001
    Applicant: Board of Trustees Operating Michigan State Univ.
    Inventors: Thomas J. Pinnavaia, Thomas R. Pauly, Seong-Su Kim