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).
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Patent number: 8252735Abstract: 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: GrantFiled: October 28, 2009Date of Patent: August 28, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Mark Paul Hagemeister, Thomas R. Forbus, Jr.
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Publication number: 20100048434Abstract: 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: ApplicationFiled: October 28, 2009Publication date: February 25, 2010Inventors: Mark Paul Hagemeister, Thomas R. Forbus, JR.
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Patent number: 7629303Abstract: 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: GrantFiled: August 17, 2005Date of Patent: December 8, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Mark Paul Hagemeister, Thomas R. Forbus, Jr.
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Patent number: 7067049Abstract: 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: GrantFiled: February 4, 2000Date of Patent: June 27, 2006Assignee: Exxonmobil Oil CorporationInventors: David J. Baillargeon, Thomas R. Forbus, Jr., Kenneth R. Graziani, Gretchen R. Hall, Nancy M. Page, Richard F. Socha
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Patent number: 6972275Abstract: 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: GrantFiled: June 28, 2002Date of Patent: December 6, 2005Assignee: ExxonMobil Research and Engineering CompanyInventor: Thomas R. Forbus, Jr.
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Patent number: 6287454Abstract: 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: GrantFiled: August 16, 1994Date of Patent: September 11, 2001Assignee: Mobil Oil CorporationInventors: Thomas R. Forbus, Jr., Chwan P. Kyan
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Patent number: 6150574Abstract: 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: GrantFiled: May 6, 1999Date of Patent: November 21, 2000Assignee: Mobil Oil CorporationInventor: Thomas R. Forbus, Jr.
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Patent number: 6090989Abstract: 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: GrantFiled: October 13, 1998Date of Patent: July 18, 2000Assignee: Mobil Oil CorporationInventors: Jeffrey C. Trewella, Thomas R. Forbus, Jr., Zhaozhong Jiang, Randall D. Partridge, Suzanne Elaine Schramm
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Patent number: 5614079Abstract: 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: GrantFiled: September 29, 1994Date of Patent: March 25, 1997Assignee: Mobil Oil CorporationInventors: Maria D. Farnos, Thomas R. Forbus, Jr., John P. McWilliams, David S. Shihabi
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Patent number: 5603822Abstract: 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: GrantFiled: November 3, 1995Date of Patent: February 18, 1997Assignee: Mobil Oil CorporationInventors: Thomas R. Forbus, Jr., David S. Shihabi
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Patent number: 5456820Abstract: 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: GrantFiled: December 23, 1991Date of Patent: October 10, 1995Assignee: Mobil Oil CorporationInventors: Thomas R. Forbus, Jr., David S. Shihabi, Chwan P. Kyan, Robert W. Bortz, Rene B. LaPierre
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Patent number: 5370787Abstract: 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: GrantFiled: April 30, 1993Date of Patent: December 6, 1994Assignee: Mobil Oil CorporationInventor: Thomas R. Forbus, Jr.
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Patent number: 4922047Abstract: 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: GrantFiled: December 22, 1988Date of Patent: May 1, 1990Assignee: Mobil Oil CorporationInventors: Catherine S. H. Chen, Thomas R. Forbus, Jr.
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Patent number: 4906799Abstract: 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: GrantFiled: November 2, 1988Date of Patent: March 6, 1990Assignee: Mobil Oil CorporationInventors: Thomas R. Forbus, Jr., Andrew Jackson
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Patent number: 4569774Abstract: 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: GrantFiled: November 13, 1984Date of Patent: February 11, 1986Assignee: Mobil Oil CorporationInventor: Thomas R. Forbus, Jr.