Component Of Indefinite Molecular Weight Greater Than 150 Patents (Class 585/7)
  • Patent number: 5136118
    Abstract: A process is disclosed for the production of synthetic hydrocarbon lubricants having high viscosity index by oligomerizing a mixture of alpha-olefins comprising the reaction product from the thermal cracking of refined wax. The oligomerization is carried out with Lewis acid catalyst or reduced chromium oxide on porous support.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: August 4, 1992
    Assignee: Mobil Oil Corporation
    Inventors: J. Scott Buchanan, Margaret M. Wu
  • Patent number: 5093533
    Abstract: Blended gasolines are produced by the mixing of a butane-pentane rich component, a natural gasoline component, and at least one octane-enhancing component. The mix is weathered during the blending operation to remove light-weight hydrocarbons comprising two, three and four-carbon components. The light-weight hydrocarbons, which preferably constitute less than 3 percent of the blended gasoline, can be recovered to generate power to run the process. The liquid gasoline mixture is formulated to produce a desired octane rating, an environmentally acceptable vapor pressure, and a mix which, when burned in an internal combustion engine, produces a minimum amount of pollutants.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: March 3, 1992
    Assignee: Interstate Chemical, Inc.
    Inventor: Ewert J. A. Wilson
  • Patent number: 5026933
    Abstract: A process for producing substantially linear hydrocarbons by oligomerizing a lower olefin at elevated temperature and pressure which comprises contacting the lower olefin under oligomerization/polymerization conditions with siliceous acidic ZSM-23 zeolite having Bronsted acid activity; wherein the zeolite has acidic pore activity and wherein the zeolite surface is rendered substantially inactive for acidic reactions. The zeolite surface can be neutralized by a bulky pyridine compound having an effective cross-section larger than the zeolite pore. The preferred deactivating agent is 2,4,6-collidine, which may be applied to the zeolite as a pretreatment or added with olefin feed in a continuous process. The olefin oligomers may be used as alkylating agents to prepare biodegradable alkylbenzenes and alkylphenylsulfonates. A preferred catalyst for this alkylation reaction is dealuminized mordenite.
    Type: Grant
    Filed: July 18, 1989
    Date of Patent: June 25, 1991
    Assignee: Mobil Oil Corporation
    Inventors: David A. Blain, Nancy M. Page, Lewis B. Young
  • Patent number: 5012022
    Abstract: Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes and synthetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structures. The cyclopentenes and cyclopentanes are prepared by hydrogenation from the corresponding cyclopentadiene intermediates. The cyclopentadienes are prepared by reaction with hydrocarbylating agents or alcohols. Mixtures are also disclosed.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: April 30, 1991
    Assignee: Pennzoil Products Company
    Inventors: Clifford G. Venier, Edward W. Casserly
  • Patent number: 5012023
    Abstract: Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes are synthetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structures. The cyclopentenes and cyclopentanes are prepared by hydrogenation from the corresponding cyclopentadiene intermediates. The cyclopentadienes are prepared by reaction with hydrocarylating agents or alcohols. Mixtures are also disclosed.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: April 30, 1991
    Assignee: Pennzoil Products Company
    Inventors: Clifford G. Venier, Edward W. Casserly
  • Patent number: 5004850
    Abstract: Blended gasolines are produced by the mixing of a butane-pentane rich component, a natural gasoline component, and a toluene component. The mix is weathered during the blending operation to remove light-weight hydrocarbons comprising two, three and four-carbon components. The light-weight hydrocarbons, which preferably constitute less than 3 percent of the blended gasoline, can be recovered to generate power to run the process. The liquid gasoline mixture is formulated to produce a desired octane rating, an environmentally acceptable vapor pressure, and a mix which, when burned in an internal combustion engine, produces a minimum amount of pollutants.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: April 2, 1991
    Assignee: Interstate Chemical, Inc.
    Inventor: Ewert J. A. Wilson
  • Patent number: 4857219
    Abstract: A high temperature heat transfer and lubricating composition consisting of a mixture of (a) a mixture of mono-, di- and tribenzylated ethyl benzene and (b) a polyphenyl ether. The lubricant has a pour point of -40.degree. C. and does not degrade at temperatures of 300.degree. C. The lubricant is miscible in all proportions but the ratio of component (a) to component (b) is about 10 to 90:90 to 10.
    Type: Grant
    Filed: May 9, 1988
    Date of Patent: August 15, 1989
    Assignee: Westinghouse Electric Corp.
    Inventor: Louis A. Cargnel
  • Patent number: 4788361
    Abstract: A triblock copolymer VI improver comprising terminal hydrogenated polyisoprene blocks and a central polymeric block containing predominantly monoalkenyl aromatic hydrocarbon monomer units. Oil compositions comprising such triblock copolymer VI improvers exhibit a good balance between thickening efficiency and mechanical shear stability combined with relatively high HTHSR viscosities.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: November 29, 1988
    Assignee: Shell Oil Company
    Inventors: Danford H. Olson, Dale L. Handlin
  • Patent number: 4751335
    Abstract: A process for preparing a fluid for traction drive from a fraction containing compounds having at least four aromatic rings is disclosed. The fraction is a by-product produced at the time of the preparation of alpha-methyl-benzylalkylbenzenes by alkylation of at least one compound selected from C.sub.7 -C.sub.10 alkylbenzenes with styrene in the presence of an acid catalyst. The process comprises the steps of decomposing the fraction in an atmosphere of hydrogen at a predetermined temperature and pressure, collecting a decomposition product having a boiling range not higher than 450.degree. C. and then subjecting the decomposition product to nuclear hydrogenation at aromatic rings thereof in the presence of a catalyst capable of nuclear hydrogenation.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: June 14, 1988
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Junichi Kubo, Kenji Suzuki, Kozo Kamiya, Eiji Akiyama, Masao Nambu
  • Patent number: 4721823
    Abstract: Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes are sythetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structures. The cyclopentenes and cyclopentanes are prepared by hydrogenation from the corresponding cyclopentadiene intermediates. The cyclopentadienes are prepared by reaction with hydrocarbylating agents or alcohols. Mixtures are also disclosed.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: January 26, 1988
    Assignee: Pennzoil Products Company
    Inventors: Clifford G. Venier, Edward W. Casserly
  • Patent number: 4615790
    Abstract: Synthetic hydrocarbon lubricating materials are produced by cross oligomerizing a Dimersol olefin and a linear olefin with a catalyst comprising a metal oxide substrate having tantalum (v) halide/oxide bound to the surface thereof.
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: October 7, 1986
    Assignee: Shell Oil Company
    Inventor: Thomas H. Johnson
  • Patent number: 4604491
    Abstract: Synthetic base oils for functional fluids and greases are provided comprising a mixture of monoalkylated naphthalenes and polyalkylated naphthalenes, said naphthalenes represented by the formula: ##STR1## wherein the R' groups are independently selected from H and methyl, the monoalkylated naphthalenes have three R groups which are H and one R group which is a 12-26 carbon alkyl, the polyalkylated naphthalenes have from two to four R groups which are 12-26 carbon alkyl and any remainder R groups H, and the weight ratio of monoalkylated naphthalenes to polyalkylated naphthalenes is from 5:95 to 70:30 when the average alkyl group is C.sub.12 -C.sub.16 and from 5:95 to 99:1 when the average alkyl group is C.sub.17 -C.sub.26. In the preferred mixture, the polyalkylated naphthalenes have a numerical ratio of .alpha./.beta. substitution of from 50/50 to 10/90 when the R' groups are both H.
    Type: Grant
    Filed: November 26, 1984
    Date of Patent: August 5, 1986
    Assignee: Koppers Company, Inc.
    Inventors: Hans Dressler, Albert A. Meilus
  • Patent number: 4510342
    Abstract: A method for preparing synthetic oils characterized by a high viscosity index and prepared from 1-olefin is described. The method comprises polymerizing a 1-olefin or a mixture of 1-olefins in the presence of(a) at least one transition metal halide catalyst,(b) at least one alkyl aluminum compound containing up to about 15 carbon atoms in each alkyl group and up to about 40 carbon atoms per molecule as a co-catalyst, and(c) a saturated alkyl fluoride.The homopolymers and copolymers prepared in accordance with the method of the invention generally are characterized by a high viscosity index such as between about 100 to 300. The homopolymers and copolymers are useful as synthetic lubricants and as additives to synthetic or mineral oil lubricants for modifying the viscosity index characteristics of the lubricants.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: April 9, 1985
    Assignee: The Standard Oil Company
    Inventors: Janie K. Currie, J. Robert Mooney
  • Patent number: 4504406
    Abstract: A cleansing agent for lithographic printing plates having substantially reduced aromatic components. The plate cleaner comprises an aqueous mixture of substantially aliphatic hydrocarbons, a composition comprising one or more non-ionic emulsifying agents and/or non-ionic surfactants, an alkaline salt electrolyte and an optional organic or inorganic acid.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: March 12, 1985
    Assignee: American Hoechst Corporation
    Inventor: Major S. Dhillon
  • Patent number: 4299714
    Abstract: In a central system fluid composition comprising (1) 70 to 95% by weight of a hydrocarbon base oil and (2) 5 to 30% by weight of a viscosity index improver, the improvement wherein said hydrocarbon base oil (1) comprises (a) 25% by weight to less than 50% by weight, based on the weight of the hydrocarbon base oil (1), of an oligomer of 1-decene having an average molecular weight of 200 to 600 and (b) more than 50% by weight to 75% by weight of a petroleum lubricating oil fraction, and said viscosity index improver (2) is a polymethacrylate having a viscosity average molecular weight of 10,000 to 700,000 obtained by polymerizing at least one ester of a saturated monohydric aliphatic alcohol having 1 to 18 carbon atoms with methacrylic acid.
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: November 10, 1981
    Assignees: Nippon Oil Company, Ltd., Nissan Motor Co., Ltd.
    Inventors: Kensuke Sugiura, Mineo Kagaya, Hiroyuki Aoki, Takeitiro Takehara
  • Patent number: 4284522
    Abstract: A liquid composition and method for forming the composition, the composition being intended for use in an oil-filled electrical apparatus to minimize the detrimental effects that can occur during high fault conditions which oil composition is biodegradable and formed from natural hydrocarbons and synthetic hydrocarbons which when combined form a flat pseudo-rectangular molecular weight distribution curve.
    Type: Grant
    Filed: February 27, 1979
    Date of Patent: August 18, 1981
    Assignee: RTE Corporation
    Inventor: John H. Olmsted
  • Patent number: 4275253
    Abstract: A radiation resistant working oil for lubricating parts of atomic power facilities which are exposed to radioactive rays consists essentially of alpha-benzyl substituted methylnaphthalene isomers and beta-benzyl substituted methylnaphthalene isomers in the ratio of about 1:0.2-1:1.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: June 23, 1981
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masaaki Takahashi, Akira Ito