Halogen Attached Indirectly To The -c(=o)o- Group By Nonionic Bonding Patents (Class 508/504)
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Publication number: 20120202724Abstract: A method in which an improved lubricating composition containing ionic liquids is used to enable operation of chains, steel belts, wheel bearings, roller bearings, sliding bearings and electric motors for at least 48 hours by reducing the evaporation loss and the lackification tendency of the lubricant due to the lubricant being protected against thermal and oxidative attack.Type: ApplicationFiled: April 12, 2012Publication date: August 9, 2012Applicant: KLUEBER LUBRICATION MUENCHEN KGInventors: Günther BODESHEIM, Martin SCHMIDT-AMELUNXEN, Dieter SOHN, Stefan GRUNDEI, Andrea HÖPKE
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Patent number: 7998913Abstract: Additives that inhibit the passage of oil across oil-air interfaces in disk drives and enable the use of the lower viscosity oil in disk drives are disclosed. Mass transfer of oil from the bulk liquid oil into the vapor phase takes place by oil molecules evaporating from the oil-air interface, or collections of oil molecules being ejected from the oil-air interface as aerosol. The invention reduces mass transfer across the oil-air interface through the use of oil-soluble surfactants.Type: GrantFiled: June 11, 2007Date of Patent: August 16, 2011Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Ferdinand Hendriks, Thomas Edward Karis, Kunihiro Shida
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Patent number: 7700527Abstract: A composition of matter resistant to foaming comprising a hydrocarbon oil and an acrylate copolymer dispersed in the said hydrocarbon oil, which acrylated copolymer contains at last one polymerised fluorinated (meth)acrylate monomer wherein not more than three neighbouring carbon atoms in the said fluorinated (meth)acrylate monomer carry one or more fluorine substituents.Type: GrantFiled: April 26, 2006Date of Patent: April 20, 2010Assignee: Cytec Surface SpecialtiesInventors: John Zheng Fang, Ming Zhao
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Patent number: 6849583Abstract: A lubricant composition containing an anti-deposition component having an anti-deposition effect which is especially useful for the lubrication of refrigeration compressors and in reducing or removal of unwanted deposits in constricted areas in a refrigeration system.Type: GrantFiled: July 26, 2001Date of Patent: February 1, 2005Assignee: Imperial Chemical Industries PlcInventors: Stuart Corr, Steven James Randles, Peter Timothy Gibb
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Patent number: 6767872Abstract: A lubricant compound for use for both boundary and elastohydrodynamic lubrication utilize a hydrocarbon boundary lubricant linked to one or more fluorocarbon elastohydrodynamic lubricants and may be employed alone or as an additive. The lubricant compound lubricates surfaces on which it is disposed over a range of conditions. The boundary lubricant and the elastohydrodynamic lubricant are substituted such that they react with and/or provide desirable lubrication properties for particular surfaces.Type: GrantFiled: May 10, 2002Date of Patent: July 27, 2004Assignee: The Charles Stark Draper Laboratory, Inc.Inventor: John R. Williams
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Patent number: 6642186Abstract: Organic compounds containing selected functional groups, and which are grafted with fluorinated olefins, are excellent additives for lubricants which lower wear and/or friction. They are especially useful in metal lubricants.Type: GrantFiled: October 19, 2001Date of Patent: November 4, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Richard Paul Beatty, Peter Arnold Morken
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Publication number: 20030195127Abstract: A perfluoropolyether hard disk lubricant having a UV curable functional end group that may be UV cured at a rapid rate with a Xenon excimer lamp. The perfluoropolyether preferably has at least one UV curable functional end group. In one embodiment, the UV curable end group comprises an acrylate.Type: ApplicationFiled: December 12, 2002Publication date: October 16, 2003Inventors: Jianwei Liu, Michael J. Stirniman, Jing Gui
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Publication number: 20030087771Abstract: A lubricant compound for use for both boundary and elastohydrodynamic lubrication utilize a hydrocarbon boundary lubricant linked to one or more fluorocarbon elastohydrodynamic lubricants and may be employed alone or as an additive. The lubricant compound lubricates surfaces on which it is disposed over a range of conditions. The boundary lubricant and the elastohydrodynamic lubricant are substituted such that they react with and/or provide desirable lubrication properties for particular surfaces.Type: ApplicationFiled: May 10, 2002Publication date: May 8, 2003Applicant: The Charles Stark Draper Laboratory Inc.Inventor: John R. Williams
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Publication number: 20020173433Abstract: Novel non-symmetric, partially fluorinated compositions and method of manufacture which are useful as lubricants or as additives to lubricant formulations involving the molecular structure:Type: ApplicationFiled: April 30, 2002Publication date: November 21, 2002Inventor: Richard P. Beatty
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Patent number: 6413918Abstract: Novel non-symmetric, partially fluorinated compositions and method of manufacture which are useful as lubricants or as additives to lubricant formulations involving the molecular structure: R1F—F′—R2—F″—R3h where R1f represents a wholly or partially fluorinated organic residue end group, F′ and F″ represent functional linkages which may be alike or different, R2 represents the backbone and R3h represents a non-fluorinated organic residue end group. Such compositions are produced by reacting a mixture of alcohols, mercaptans or amines containing at least one partially fluorinated compound and at least one non-fluorinated compound in the mixture, thus producing the R1f and the R3h residues, with a difunctional organic compound (e.g., diacid, dinitrile, disulfonyl halide, diisocyanate, diisothiocyanate, diphosphoryl halide or dithiophosphoryl halide).Type: GrantFiled: April 26, 1999Date of Patent: July 2, 2002Assignee: E. I. du Pont de Nemours and CompanyInventor: Richard P. Beatty
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Patent number: 6187724Abstract: A lubricant composition comprising (A) a compound of the formula: R1—COO—R2 wherein R1 is a higher aliphatic hydrocarbon residue and R2 is an aliphatic hydrocarbon residue which may contain fluorine atom(s) and/or oxygen atom(s), and (B) a compound of the formula: wherein R3 is a higher aliphatic hydrocarbon residue; R4 and R5 are independently a hydrogen atom or an aliphatic hydrocarbon residue which may contain fluorine atom(s) and/or oxygen atom(s), gives a lubricant layer in a magnetic recording medium having good running durability, still life and weather resistance.Type: GrantFiled: September 28, 1998Date of Patent: February 13, 2001Assignees: Wako Pure Chemical Industries, Ltd., TDK CorporationInventors: Tsunehiko Ikarashi, Koji Kobayashi, Hiromichi Kanazawa, Takahiro Hayashi, Takehiko Iritani
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Patent number: 6028038Abstract: An extreme pressure lubricant additive system, is provided for use in lubricating metal wear surfaces, such as the transmission or engine of an automobile. The additive system is added to the oil reservoir of the transmission, engine or the like. The additive system includes in combination, a naphthenic base oil, a chlorinated methyl ester, a methyl ester anti-wear additive, and an acid scavenger. The extreme pressure lubricant additive system is present in a minor quantity and said lubricating oil is present in a major quantity, on a weight percent basis. The naphthenic base oil is from about 15 to 30 percent of said additive system, and preferably from about 18 to 25 percent of the additive system. The methyl ester anti-wear additive is from about 2 to 7 percent of the additive system, and preferably 4 to 6 percent of said system. The chlorinated methyl ester is present in the range from about 50 to 90 percent, and preferably in the range from about 60 to 80 percent.Type: GrantFiled: February 13, 1998Date of Patent: February 22, 2000Assignee: Charles L. StewartInventor: Kevin J. Kusch
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Patent number: 5830834Abstract: A magnetic recording medium is produced by coating a body having (a) a non-magnetic substrate, (b) at least one magnetic substance layer formed on the non-magnetic substrate and (c) at least one protective layer formed on the magnetic substance layer which contains at least one member selected from the group consisting of inorganic oxides, graphite and amorphous allotropes of carbon, with a solid surface modifier containing (i) an ammonium carboxylate type fluorine-containing compound having the formula,(R.sub.f --COO.sup.- H.sup.+).sub.n --R,wherein R.sub.Type: GrantFiled: March 21, 1996Date of Patent: November 3, 1998Assignee: Hitachi, Ltd.Inventors: Mitsuyoshi Shoji, Takayuki Nakakawaji, Hiroshi Sasaki, Yutaka Ito, Shigeki Komatsuzaki, Hiroyuki Matsumoto
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Patent number: 5792383Abstract: Fluid refrigeration compositions comprising a hydrocarbon lubricant, an immiscible refrigerant and an additive capable of reducing the interfacial tension between the hydrocarbon lubricant and refrigerant.Type: GrantFiled: September 7, 1994Date of Patent: August 11, 1998Assignee: Witco CorporationInventors: Jose L. Reyes-Gavilan, Alan D. Eckard, G. Thomas Flak, Todd R. Tritcak, Leonard Aconsky
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Patent number: 5663127Abstract: A lubricating composition containing about 0.1-10 weight percent of a perfluoropolyether lubricant containing perfluoropolyether molecules having at least one hydrogen-containing end group per molecule, and about 99.9-90 weight percent of a liquid, perfluorinated, nonaromatic cyclic organic solvent or mixture of such solvents is provided.Type: GrantFiled: July 29, 1994Date of Patent: September 2, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Richard M. Flynn, John G. Owens