Patents by Inventor Charles T. Kresge

Charles T. Kresge 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: 6869587
    Abstract: This invention relates to a novel synthetic porous crystalline molecular sieve material, MCM-65, to a reaction mixture and method for its preparation, and to use of the MCM-65 in catalytic conversion of organic compounds. The crystalline material exhibits a distinctive X-ray diffraction pattern as shown in Table 1.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: March 22, 2005
    Assignee: ExxonMobil Chemical Patents Inc
    Inventors: Sandeep Singh Dhingra, Charles T. Kresge, Stephen G. Casmer
  • Publication number: 20040047802
    Abstract: This invention relates to a novel synthetic porous crystalline molecular sieve material, MCM-65, to a reaction mixture and method for its preparation, and to use of the MCM-65 in catalytic conversion of organic compounds.
    Type: Application
    Filed: June 27, 2003
    Publication date: March 11, 2004
    Inventors: Sandeep Singh Dhingra, Charles T. Kresge, Stephen G. Casmer
  • Patent number: 6447741
    Abstract: A mesoporous aluminophosphate material includes a solid aluminophosphate composition modified with at least one element selected from zirconium, cerium, lanthanum, manganese, cobalt, zinc, and vanadium. This mesoporous aluminophosphate material has a specific surface area of at least 100 m2/g, an average pore size less than or equal to 100 Å, and a pore size distribution such that at least 50% of the pores have a pore diameter less than 100 Å. The material can be used as a support for a catalytic cracking catalyst. Additionally, a method for making such a mesoporous aluminophosphate material is disclosed. The method, which preferably avoids use of organic reagents or solvents, includes providing an aqueous solution containing an inorganic phosphorus component; an inorganic aluminum containing component; and an inorganic modifying component containing at least one element selected from zirconium, cerium, lanthanum, manganese, cobalt, zinc, and vanadium.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: September 10, 2002
    Assignee: ExxonMobil Oil Corporation
    Inventors: Arthur W. Chester, Frederick E. Daugherty, Charles T. Kresge, Hye-Kyung C. Timken, James C. Vartuli
  • Patent number: 6419819
    Abstract: This invention relates to a new synthetic porous crystalline material, designated MCM-67, a method for its preparation and use thereof in catalytic conversion of organic compounds. MCM-67 appears to be closely related in structure to VPI-8 and SSZ-41 but is synthesized without zinc and in the presence of manganese and/or cobalt ions.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: July 16, 2002
    Assignee: ExxonMobil Oil Corporation
    Inventors: Sandeep Singh Dhingra, Charles T. Kresge, Robin P. Ziebarth
  • Patent number: 6310265
    Abstract: This invention relates to a process for isomerizing paraffins comprising the step of contacting a feed containing paraffins with a catalyst comprising a synthetic porous crystalline material, designated MCM-68, which exhibits a distinctive X-ray diffraction pattern and has a unique crystal structure which contains at least one channel system, in which each channel is defined by a 12-membered ring of tetrahedrally coordinated atoms, and at least two further, independent channel systems, in each of which each channel is defined by a 10-membered ring of tetrahedrally coordinated atoms, wherein the number of unique 10-membered ring channels is twice the number of 12-membered ring channels.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: October 30, 2001
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Arthur W. Chester, David C. Calabro, Sandeep S. Dhingra, Jean W. Beeckman, Timothy J. Fiebig, Glenn R. Sweeten, Terry E. Helton, Charles T. Kresge, Richard F. Socha, Simon C. Weston
  • Patent number: 6124232
    Abstract: There is provided a method for preparing an acidic solid oxide having a reduced particle density, where the acidic solid oxide comprises a Group IVB metal oxide modified with an anion or oxyanion of a Group VIB metal. An example of this acidic solid oxide is zirconia modified with tungstate. The acidic solid oxide having a reduced particle density is prepared by coprecipitating the Group IVB metal oxide along with the anion or oxyanion of the Group VIB metal in the presence of a salt. This acidic solid oxide is particularly effective as a paraffin isomerization catalyst.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: September 26, 2000
    Assignee: Mobil Oil Corporation
    Inventors: Clarence D. Chang, Charles T. Kresge, Jose G. Santiesteban, James C. Vartuli
  • Patent number: 6063262
    Abstract: This invention relates to a new synthetic porous crystalline material, designated MCM-67, a method for its preparation and use thereof in catalytic conversion of organic compounds. MCM-67 appears to be closely related in structure to VPI-8 and SSZ-41 but is synthesized without zinc and in the presence of manganese and/or cobalt ions.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: May 16, 2000
    Assignee: Mobil Oil Corporation
    Inventors: Sandeep S. Dhingra, Charles T. Kresge, Robin P. Ziebarth
  • Patent number: 6054052
    Abstract: Incorporation of zirconium, nickel and/or copper into M41S results in selective sorption of bulky organic molecules. Zirconium, nickel and/or copper may be incorporated into M41S by exchange or impregnation.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: April 25, 2000
    Assignee: Mobil Oil Corporation
    Inventors: Sandeep S. Dhingra, Charles T. Kresge, Sharon B. McCullen
  • Patent number: 6049018
    Abstract: This invention relates to a new synthetic porous crystalline material, designated MCM-68, a method and novel polycyclic organic cation for its preparation and its use in catalytic conversion of organic compounds. The new crystalline material exhibits a distinctive X-ray diffraction pattern and has a unique crystal structure which contains at least one channel system, in which each channel is defined by a 12-membered ring of tetrahedrally coordinated atoms, and at least two further, independent channel systems, in each of which each channel is defined by a 10-membered ring of tetrahedrally coordinated atoms, wherein the number of unique 10-membered ring channels is twice the number of 12-membered ring channels.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: April 11, 2000
    Assignee: Mobil Corporation
    Inventors: David C. Calabro, Jane C. Cheng, Robert A. Crane, Jr., Charles T. Kresge, Sandeep S. Dhingra, Michael A. Steckel, David L. Stern, Simon C. Weston
  • Patent number: 5837639
    Abstract: A catalytic composition comprises a metal hydrogenation- dehydrogenation component supported on a support material comprising an ultra-large pore crystalline material of high surface area and porosity. The crystalline material exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C., and has uniformly sized pores with a maximum perpendicular cross section of at least about 13 .ANG.. In a preferred form, the support material, which is preferably a metallosilicate such as an aluminosilicate, has the pores in a hexagonal arrangement, giving rise to a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 .ANG..
    Type: Grant
    Filed: July 24, 1991
    Date of Patent: November 17, 1998
    Assignee: Mobil Oil Corporation
    Inventors: Charles T. Kresge, Michael E. Leonowicz, Wieslaw J. Roth, James C. Vartuli
  • Patent number: 5779882
    Abstract: A layered composition of matter, MCM-56, has an X-ray diffraction pattern including lines at d-spacing values of 12.4.+-.0.2, 9.9.+-.0.3, 6.9.+-.0.1, 6.2.+-.0.1, 3.55.+-.0.07 and 3.42.+-.0.07 Angstroms and has been selectively modified so that the ratio of the number of active acid sites at its external surface to the number of internal active acid sites is greater than that of the unmodified material. When used as an additive to a large pore zeolite catalyst in the catalytic cracking of a petroleum feedstock, the modified MCM-56 gives an improved gasoline yield/octane relationship, an improved coke selectivity and a higher combined gasoline and potential alkylate yield than an identical catalyst containing unmodified MCM-56.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: July 14, 1998
    Assignee: Mobil Oil Corporation
    Inventors: Arthur W. Chester, Anthony S. Fung, Charles T. Kresge, Wieslaw J. Roth
  • Patent number: 5583276
    Abstract: A process for converting at least one olefin and at least one isoparaffin to a diesel fuel blending component comprising the steps of contacting the olefin and the isoparaffin with a catalyst comprising MCM-58 to provide a diesel fuel. Process conditions can be varied to favor the formation of gasoline, distillate, lube range products or mixtures thereof.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: December 10, 1996
    Assignee: Mobil Oil Corporation
    Inventors: Stuart D. Hellring, Charles T. Kresge, David O. Marler, Ernest W. Valyocsik
  • Patent number: 5510309
    Abstract: There is provided a method for preparing an acidic solid comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal. An example of this acidic solid is zirconia, modified with tungstate. This modified solid oxide may be used as a catalyst, for example, to isomerize C.sub.4 to C.sub.8 paraffins. The modified solid oxide is prepared by co-precipitating the Group IVB metal oxide along with the oxyanion of the Group VIB metal.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: April 23, 1996
    Assignee: Mobil Oil Corporation
    Inventors: Clarence D. Chang, Charles T. Kresge, Jose G. Santiesteban, James C. Vartuli
  • Patent number: 5498817
    Abstract: The invention provides a process for alkylating an olefin with an isoparaffin comprising contacting an olefin-containing feed in the presence of a thermally stable composition comprising a non-swellable layered chalcogenide of an element having an atomic number of 4, 5, 12 to 15, 20 to 33, 38 to 51, 56 to 83 and greater than 90, inclusive, said layered metal chalcogenide comprising an interspathic polymeric chalcogenide of an element selected from Groups IB, IIB, IIIA, IIIB, IVA, IVB, VA, VB, VIA, VIIA, and VIIIA of the Periodic Table.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: March 12, 1996
    Assignee: Mobil Oil Corporation
    Inventors: Tracy J. Huang, Charles T. Kresge
  • Patent number: 5475178
    Abstract: There is provided a catalyst comprising a heteropoly acid, such as phosphotungstic acid, supported on a mesoporous crystalline material, such as M41S. A particular form of this M41S support is designated as MCM-41. There is also provided a method for preparing this catalyst by impregnating the heteropoly acid on the support. There is also provided a process for using this catalyst to catalyze acid catalyzed reactions, such as the isomerization of paraffins and the alkylation of aromatics.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: December 12, 1995
    Assignee: Mobil Oil Corp.
    Inventors: Kenneth J. Del Rossi, Gregory A. Jablonski, Charles T. Kresge, Guenter H. Kuehl, David O. Marler, Gayatri S. Rav, Brenda H. Rose
  • Patent number: 5378440
    Abstract: Methods for separation of substances are provided. The methods include contacting a mixture of at least two components in flowable conditions with mesoporous, crystalline materials termed M41S which also include MCM-41 materials. The mesoporous crystalline materials may be used in separations as is or functionalized.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: January 3, 1995
    Assignee: Mobil Oil Corp.
    Inventors: Joseph A. Herbst, Charles T. Kresge, David H. Olson, Kirk D. Schmitt, James C. Vartuli, Daniel I. C. Wang
  • Patent number: 5370785
    Abstract: There is provided a hydrocarbon conversion process and a process for sorbing a sorbate wherein said conversion and sorption process each comprises the use of a porous material. A process for preparing this material involves adding an amphiphilic compound to the reaction mixture for preparing a crystalline oxide. The amphiphilic compound may be a quaternary ammonium cationic surfactant. These surfactants may be in the form of lamellar liquid crystals, and may function as templates for the formation of the present mesoporous oxide materials.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: December 6, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Jeffrey S. Beck, Charles T. Kresge, Sharon B. McCullen, Wieslaw J. Roth, James C. Vartuli
  • Patent number: 5366945
    Abstract: There is provided a catalyst comprising a heteropoly acid, such as phosphotungstic acid, supported on a mesoporous crystalline material, such as M41S. A particular form of this M41S support is designated as MCM-41. There is also provided a method for preparing this catalyst by impregnating the heteropoly acid on the support. There is also provided a process for using this catalyst to catalyze acid catalyzed reactions, such as the isomerization of paraffins and the alkylation of aromatics.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: November 22, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, David O. Marler, Gayatri S. Rav, Brenda H. Rose
  • Patent number: 5364999
    Abstract: There is provided a process for converting organic compounds using a catalyst comprising a pillared, layered crystalline oxide material. This material may be prepared by intercepting a swellable layered oxide before calcination. The intercepted material is swollen and pillared. If the material is not intercepted in this manner, it is transformed into a zeolite by calcination. The pillared material may have a large degree of catalytic activity, and it may have rather porous layers.
    Type: Grant
    Filed: March 9, 1993
    Date of Patent: November 15, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, Wieslaw J. Roth, Kenneth G. Simmons, James C. Vartuli
  • Patent number: 5365000
    Abstract: There is provided a process for converting organic compounds using a catalyst comprising a pillared, layered crystalline oxide material with a characteristic X-ray diffraction pattern. This layered material is designated MCM-39. This layered material may be swollen, and the swollen material may be pillared.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: November 15, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, Wieslaw J. Roth