Patents Examined by Andrew Metz
  • Patent number: 4406803
    Abstract: Lubricating oils containing oil soluble C.sub.10 -C.sub.30 alkane-1,2-diols have been found to reduce fuel consumption in an internal combustion engine.
    Type: Grant
    Filed: April 20, 1982
    Date of Patent: September 27, 1983
    Assignee: Chevron Research Company
    Inventors: Thomas V. Liston, Timothy R. Erdman
  • Patent number: 4405469
    Abstract: This invention relates to organosiloxanes which have SiC-bonded ester groups and contain at least one unit of the general formula: ##EQU1## is which R represents the same or different monovalent hydrocarbon radicals having from 1 to 12 carbons atoms, which are free of aliphatic unsaturation and which may contain one ether oxygen atom; R' represents hydrogen or a methyl group (CH.sub.3) and a is O, 1 or 2. These organosiloxanes can be prepared by hydrolyzing or co-hydrolyzing silanes of the general formula:ROOCCH.sub.2 CH(COOR)CH.sub.2 CHR'CH.sub.2 Si(CH.sub.3).sub.a X.sub.3-a'where R, R' and a are the same as above and X represents the same or different hydrolyzable atoms or groups. Also, they may be prepared by the addition of a diester of allyl succinic acid and/or methallyl succinic acid to an organosiloxane containing Si-bonded hydrogen. These new organosiloxanes may be used as lubricants for inorganic and organic fibers, metal surfaces and as hydraulic fluids.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: September 20, 1983
    Assignee: Consortium fur Elektrochemische Ind. GmbH
    Inventors: Walter Hafner, Erich Markl, Ludwig Eibel, Gerhard Kreis, Dietrich Samrowski, Manfred Wick, Bernward Deubzer, Wilhelm Friedrich
  • Patent number: 4405471
    Abstract: Compound for a water dilutable metal-working lubricant characterized in that it has the formula ##STR1## where R consists of an alkyl rest containing 3-15 carbon atoms,R.sub.1 consists of an alkyl rest, a substituted alkyl rest, an unsaturated alkyl rest, a substituted unsaturated alkyl rest, an aryl rest or a substituted aryl rest containing 4--30 carbon atomsR.sub.2 consists of an alkyl rest, a substituted alkyl rest, an alkylene rest, an aryl rest, a substituted aryl rest, an alicyclic rest or a substituted alicyclic rest containing 1-20 carbon atoms andR.sub.3.sup..sym. consists of protonized amine or an alkali metal cationm has a value between 3 and 8n<m andp has a value between 0.5 and 8, preferably 0.5-3.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: September 20, 1983
    Assignee: Perstorp AB
    Inventors: Mans O. Manson, Carl-Axel E. Sjogreen, Goran A. Bergvall
  • Patent number: 4402842
    Abstract: The invention provides products of reaction formed by reacting an amine, a mercaptan and an aldehyde. The invention also provides liquid fuel and lubricant compositions.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: September 6, 1983
    Assignee: Mobil Oil Corporation
    Inventors: Andrew G. Horodysky, Joan M. Kaminski
  • Patent number: 4402845
    Abstract: The spreadability of marine diesel cylinder oils is improved by the incorporation therein of a polyethylene glycol of the formula:R--CH.sub.2 O--(CH.sub.2 CH.sub.2 O).sub.n Hwherein n ranges from 7 to 40 and R is an alkyl group containing from 11 to 15 carbon atoms.
    Type: Grant
    Filed: May 26, 1981
    Date of Patent: September 6, 1983
    Assignee: Texaco Inc.
    Inventors: Benjamin H. Zoleski, Rodney L. Sung
  • Patent number: 4402839
    Abstract: Water soluble lubricant compositions comprising alkanolamine and organic acid are improved by employing a monocycloalkyl-1,2,3,6-cis tetrahydrophthalate or hexahydrophthalate; or a monoaralkyl-1,2,3,6-cis tetrahydrophthalate or hexahydrophthalate as the organic acid.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: September 6, 1983
    Assignee: Mobil Oil Corporation
    Inventors: Robert H. Davis, Alfred B. Piotrowski
  • Patent number: 4401581
    Abstract: Lubricating oil dispersants are made by reacting an (a) alkenyl succinic anhydride, (b) an alcohol (e.g. pentaerythritol), (c) a hydroxy-substituted amine (e.g. tris-hydroxymethylaminomethane, (d) a polyoxyalkyleneamine, and (e) an alkenyl succinimide.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: August 30, 1983
    Assignee: Edwin Cooper and Company Limited
    Inventors: Aubrey L. Burrows, Thomas J. Walter
  • Patent number: 4400282
    Abstract: Hydrocarbon lubricating oils with a tetrahydrocarbylammonium thiomolybdate having at least about 19 carbon atoms, such as dicocodimethylammonium thiomolybdate, solubilized in the oil are characterized by improved anti-friction properties.
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: August 23, 1983
    Assignee: Gulf Research & Development Company
    Inventors: Gary M. Singerman, Yumi P. Ryu, James R. Anglin
  • Patent number: 4397750
    Abstract: Esters of hydroxyalkylpyrrolidinones and alkenylsuccinic anhydrides are effective detergent additives for hydrocarbyl lubricants and fuels.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: August 9, 1983
    Assignee: Mobil Oil Corporation
    Inventor: Sheldon Chibnik
  • Patent number: 4396519
    Abstract: Alkyl-substituted bicycloalkyl ether compositions useful in the preparation of synthetic lubricant compositions are obtained by reacting an alkyl-substituted 2-norbornene with a monohydric alcohol in the presence of an acidic catalyst.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: August 2, 1983
    Assignee: Texaco Inc.
    Inventor: Edward C. Y. Nieh
  • Patent number: 4392969
    Abstract: Alkylated 5,6,7,8-tetrahydronaphthalenols are effective antioxidants for fuel oils, lubricating oils, greases, plastics, and rubbers over a wide temperature range. Di- and tri-alkylated tetrahydronaphthalenols are especially effective, with the di- and tri-isopropylated materials being preferred.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: July 12, 1983
    Assignee: UOP Inc.
    Inventor: Bruce E. Firth
  • Patent number: 4392968
    Abstract: The oxidation of a lubricating oil caused by metal components can be suppressed effectively by adding to the lubricating oil a compound represented by the formula ##STR1##
    Type: Grant
    Filed: July 30, 1981
    Date of Patent: July 12, 1983
    Assignee: Nippon Oil Company, Limited
    Inventors: Noboru Ishida, Harumichi Watanabe
  • Patent number: 4391720
    Abstract: Bis(hydroxyalkyl)disiloxane lubricants of the formula ##STR1## wherein R.sub.1 and R.sub.3 are methyl or ethyl and R.sub.2 and R.sub.4 are linear alkyl groups of up to 20 carbon atoms. These compounds are useful as additives to methyl alkyl siloxane lubricants for conductive high density information discs. Discs lubricated with the lubricant mixture exhibit improved stability to environments of high temperature and high relative humidity.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: July 5, 1983
    Assignee: RCA Corporation
    Inventors: Chih C. Wang, Ronald F. Bates
  • Patent number: 4390436
    Abstract: In an improved method of forming containers from soft metals comprising coating the metal with a lubricant, forming a cup, drawing the cup and removing the lubricant, wherein the lubricant includes a compound with a melt point less than 65.degree. C., a wax with a melt point less than 50.degree. C., a fatty acid, an amine, thickener and water.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: June 28, 1983
    Assignee: S. C. Johnson & Son, Inc.
    Inventor: Pablo M. Hernandez
  • Patent number: 4390438
    Abstract: An improved high-content animal fat rolling oil formulation used for cold rolling sheet steel and steel strip for tin plate is achieved by adding effective amounts of a saturated dibasic acid containing from 4-4 carbon atoms to an animal fat formulation including:1. refined animal fat,2. minor portions of lubricity additives,3. anti-oxidants, and4. emulsifiers and other additives.This improved rolling oil formulation exhibits a drastically decreased coefficient of friction when applied between two metal surfaces.
    Type: Grant
    Filed: October 16, 1981
    Date of Patent: June 28, 1983
    Assignee: Nalco Chemical Company
    Inventors: Carl S. Kennedy, Fred Zellmann
  • Patent number: 4389321
    Abstract: Lubricants stabilized against oxidative degradation by the incorporation therein of 2,3-dihydroperimidine derivatives as well as certain 2,3-dihydroperimidines within the indicated group.
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: June 21, 1983
    Assignee: Ciba-Geigy Corporation
    Inventor: Roger F. Malherbe
  • Patent number: 4388202
    Abstract: A lubricating oil composition comprising a major proportion of a lubricating oil, and an oil-soluble graft copolymer, said graft copolymer being prepared by grafting a small amount of a grafting monomer selected from saturated esters of unsaturated monocarboxylic acids, unsaturated esters of saturated carboxylic acids and unsaturated epoxy compounds to a trunk copolymer which is substantially free from an oxygen-containing functional group and a carbon-carbon double bond determined from its iodine value and has a number average molecular weight of about 5,000 to about 100,000, said trunk copolymer being selected from copolymers of alpha-olefins having 2 to 20 carbon atoms, copolymers of styrene and alpha-olefins having 2 to 20 carbon atoms and hydrogenated products of copolymers of styrene and diolefins. A process for preparation of said composition is also provided.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: June 14, 1983
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Riichiro Nagano, Ryosuke Kaneshige
  • Patent number: 4388199
    Abstract: Rust-inhibiting compounds, especially for aqueous systems such as tool-lubricating emulsions for machine tools and which consist of amine salts of a number of monoaminoalkylene dicarboxylic acids are disclosed.These rust-inhibitors are used in combination with water and an alkanolamine.Examples and test results are given.
    Type: Grant
    Filed: October 29, 1980
    Date of Patent: June 14, 1983
    Assignee: Snamprogetti S.P.A.
    Inventor: Ernesto Brandolese
  • Patent number: 4386002
    Abstract: N-Arylmethylideneaminodiphenyl ethers are effective antioxidants for high pressure applications. The corresponding 4'-methoxy analogs, such as 4-benzylideneamino-4'-methoxydiphenyl ether and 2- and 4-pyridylmethylideneamino-4'-methoxydiphenyl ether, have particularly desirable properties.
    Type: Grant
    Filed: May 12, 1981
    Date of Patent: May 31, 1983
    Assignee: UOP Inc.
    Inventor: John T. Roberts
  • Patent number: 4384967
    Abstract: Disclosed is a lubricant composition containing an oil of lubricating viscosity having dispersed therein a particulate hydrated alkali-metal borate and an effective amount of a sulfur-containing polyhydroxy compound which stabilizes the composition against the adverse effects of water contamination.
    Type: Grant
    Filed: July 29, 1981
    Date of Patent: May 24, 1983
    Assignee: Chevron Research Company
    Inventors: Christopher G. Salentine, Vernon R. Small