Patents by Inventor Thomas R. Forbus, Jr.

Thomas R. Forbus, Jr. 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: 8252735
    Abstract: A basestock that comprises a fully hydrogenated substituted styrene linear dimer; a partially hydrogenated mono-aromatic substituted styrene linear dimer; and a partially hydrogenated di-aromatic substituted styrene linear dimer. A process of producing a basestock that comprises reacting a feed stream that comprises substituted styrene, alcohol, and a dimerization catalyst, in the presence of a solvent, to form a crude slurry of dimerized substituted styrene; and partially hydrogenating the dimerized substituted styrene with hydrogen over a Group VIII catalyst to form a basestock that comprises a fully hydrogenated substituted styrene linear dimer and a partially hydrogenated substituted styrene linear dimer.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: August 28, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Mark Paul Hagemeister, Thomas R. Forbus, Jr.
  • Publication number: 20100048434
    Abstract: A basestock that comprises a fully hydrogenated substituted styrene linear dimer; a partially hydrogenated mono-aromatic substituted styrene linear dimer; and a partially hydrogenated di-aromatic substituted styrene linear dimer. A process of producing a basestock that comprises reacting a feed stream that comprises substituted styrene, alcohol, and a dimerization catalyst, in the presence of a solvent, to form a crude slurry of dimerized substituted styrene; and partially hydrogenating the dimerized substituted styrene with hydrogen over a Group VIII catalyst to form a basestock that comprises a fully hydrogenated substituted styrene linear dimer and a partially hydrogenated substituted styrene linear dimer.
    Type: Application
    Filed: October 28, 2009
    Publication date: February 25, 2010
    Inventors: Mark Paul Hagemeister, Thomas R. Forbus, JR.
  • Patent number: 7629303
    Abstract: A basestock that comprises a fully hydrogenated substituted styrene linear dimer; a partially hydrogenated mono-aromatic substituted styrene linear dimer; and a partially hydrogenated di-aromatic substituted styrene linear dimer. A process of producing a basestock that comprises reacting a feed stream that comprises substituted styrene, alcohol, and a dimerization catalyst, in the presence of a solvent, to form a crude slurry of dimerized substituted styrene; and partially hydrogenating the dimerized substituted styrene with hydrogen over a Group VIII catalyst to form a basestock that comprises a fully hydrogenated substituted styrene linear dimer and a partially hydrogenated substituted styrene linear dimer.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: December 8, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Mark Paul Hagemeister, Thomas R. Forbus, Jr.
  • Patent number: 7067049
    Abstract: The present invention relates to formulated lubricant oils derived from a highly paraffinic basestock. The lubricating oils of the present invention achieve the extremely stringent viscosity requirements of SAE “0W” crossgraded engine oils and demonstrate an excellent combination of low-temperature performance and biodegradability not achievable by other formulations derived from other classes of basestocks.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: June 27, 2006
    Assignee: Exxonmobil Oil Corporation
    Inventors: David J. Baillargeon, Thomas R. Forbus, Jr., Kenneth R. Graziani, Gretchen R. Hall, Nancy M. Page, Richard F. Socha
  • Patent number: 6972275
    Abstract: Novel oil-in-oil emulsions and methods of lubrication using the same are provided. The lubricants are stable emulsions of carrier fluid and high viscosity fluid that display superior properties related to lubricating film thickness and reduced shear strength.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: December 6, 2005
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Thomas R. Forbus, Jr.
  • Patent number: 6287454
    Abstract: Lubricant oils of low pour point and improved oxidation stability are produced by catalytically dewaxing a lube feedstock over a zeolite dewaxing catalyst such as ZSM-5 in the hydrogen or decationized form. The use of these catalysts enables products of excellent oxidative stability to be obtained and reduces the catalyst aging rate in the first and subsequent dewaxing cycles to values below 5° F./day. The duration of the dewaxing cycles may be extended, particularly in the second and subsequent cycles after hydrogen reactivation.
    Type: Grant
    Filed: August 16, 1994
    Date of Patent: September 11, 2001
    Assignee: Mobil Oil Corporation
    Inventors: Thomas R. Forbus, Jr., Chwan P. Kyan
  • Patent number: 6150574
    Abstract: When different trialkyl methanes containing 25 through 36 carbon atoms are mixed the mixture exhibits surprisingly superior lubricant properties including low viscosity, high VI, low volatility, very low pour point and a dynamic viscosity at low temperatures that is less than those of PAO lubricants. Statistically predictable mixture compositions of mixed trialkyl methanes are prepared by reaction of mixtures of n-alkyl organometallic compounds with mixed aliphatic esters or equivalent compounds.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: November 21, 2000
    Assignee: Mobil Oil Corporation
    Inventor: Thomas R. Forbus, Jr.
  • Patent number: 6090989
    Abstract: A liquid hydrocarbon composition, containing paraffinic hydrocarbon components in which the extent of branching, as measured by the percentage of methyl hydrogens (BI), and the proximity of branching, as measured by the percentage of recurring methylene carbons which are four or more carbons removed from an end group or branch (CH.sub.2 >4), are such that:(a) BI-0.5(CH.sub.2 >4)>15; and(b) BI+0.85(CH.sub.2 >4)<45as measured over said liquid hydrocarbon composition as a whole.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: July 18, 2000
    Assignee: Mobil Oil Corporation
    Inventors: Jeffrey C. Trewella, Thomas R. Forbus, Jr., Zhaozhong Jiang, Randall D. Partridge, Suzanne Elaine Schramm
  • Patent number: 5614079
    Abstract: A molecular sieve catalyst is composited with an inert binder derived from an organic silicon source and organic polymer. The catalyst is used in dewaxing of petroleum chargestocks.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: March 25, 1997
    Assignee: Mobil Oil Corporation
    Inventors: Maria D. Farnos, Thomas R. Forbus, Jr., John P. McWilliams, David S. Shihabi
  • Patent number: 5603822
    Abstract: Raffinate is catalytically hydrodewaxed to lube basestock in a mixture containing between 0.01 and 1 weight percent of pour point depressants comprising the copolymer residue of a mixture of 1-alkene comonomers selected from the group consisting of C.sub.3 -C.sub.28 1-alkenes. The mixture is contacted with hydrogen and shape selective metallosilicate catalyst particles under mild hydrodewaxing conditions to produce an increased yield of lube basestock having a pour point below -25.degree. F. and viscosity index greater than 100.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: February 18, 1997
    Assignee: Mobil Oil Corporation
    Inventors: Thomas R. Forbus, Jr., David S. Shihabi
  • Patent number: 5456820
    Abstract: A process for making a lubricant oil of low pour point which comprises a) catalytically dewaxing a lube boiling range feedstock in the presence of hydrogen over a dewaxing catalyst comprising an intermediate pore size zeolite in the hydrogen or decationized form during a dewaxing cycle in which the temperature is progressively increased to maintain a substantially constant product pour point to produce a lubricant oil product of improved oxidation stability. The feedstock is sequenced during a dewaxing cycle from a heavy feed to a lighter feed in order to avoid contacting the lighter feed with the catalyst in its most active conditions.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: October 10, 1995
    Assignee: Mobil Oil Corporation
    Inventors: Thomas R. Forbus, Jr., David S. Shihabi, Chwan P. Kyan, Robert W. Bortz, Rene B. LaPierre
  • Patent number: 5370787
    Abstract: Thermal treatment of heavy petroleum resid in the presence of moderate amounts of light aromatics or paraffins produces more liquid product at the expense of gas and coke than when treated alone under identical conditions.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: December 6, 1994
    Assignee: Mobil Oil Corporation
    Inventor: Thomas R. Forbus, Jr.
  • Patent number: 4922047
    Abstract: Bicyclic and monocyclic terpenes are oligomerized by contact over a zeolite catalyst to produce high boiling lube oil traction fluid having a high traction coefficient. The traction fluid comprises dimers, trimers and tetramers of the bicyclic and monocyclic terpenes. The lube oil is catalytically hydrogenated to obtain a saturated cycloparaffin hydrocarbon oil traction fluid.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: May 1, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Catherine S. H. Chen, Thomas R. Forbus, Jr.
  • Patent number: 4906799
    Abstract: A process is disclosed for the production of low viscosity, high viscosity index liquid lubricant in high yield by the thermally-induced cleavage or pyrolysis of higher molecular weight oligomers of 1-alkenes. Further, it has been discovered that the reduced viscosity lubricants produced by pyrolysis of higher viscosity 1-alkene oligomers retain the superior characteristics of high viscosity index and low pour point of the starting material.The process comprises contacting C.sub.6 -C.sub.20 1-alkene feedstock with reduced valence state chromium oxide catalyst on porous silica support under oligomerizing conditions in an oligomerization zone whereby viscosity, high VI liquid hydrocarbon lubricant is produced having branch ratio less than 0.19 and pour point below --15.degree. C.; passing said high viscosity liquid lubricant through a pyrolysis zone under pyrolyzing conditions; separating reduced viscosity liquid hydrocarbon lubricant having high VI and low pour point.
    Type: Grant
    Filed: November 2, 1988
    Date of Patent: March 6, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Thomas R. Forbus, Jr., Andrew Jackson
  • Patent number: 4569774
    Abstract: Polyglycol lubricants of improved rheological characteristics are produced by adding a lithium salt to a polyglycol liquid lubricant. Preferred lithium salt are non-nucleophilic salts such as lithium trifluoromethanesulfonate. These salts improve the pressure-viscosity characteristics of the lubricant without significantly affecting the temperature-viscosity characteristics so that thicker lubricant films are produced in elastohydrodynamic film contact.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: February 11, 1986
    Assignee: Mobil Oil Corporation
    Inventor: Thomas R. Forbus, Jr.