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| Number | Title | Issue Date |
| 8063003 | Cyclic phosphazene compound A cyclic phosphazene compound complying with formula (I) or (II): wherein: Rfand R′frepresent independently a (per)fluoropolyoxyalkylene chain comprising recurring ... | 11/22/2011 |
| 7998912 | Composite lubricant for hard disk media A composite lubricant for recording disk media, a recording disk media including a layer of the composite lubricant, and method of manufacturing the same are described. The composite lubricant may include a non-phosphazene component and a phosphazene component where... | 08/16/2011 |
| 7829511 | Stabilized lubricant compositions A stabilized lubricant composition is disclosed that comprises lubricating oil and a mixture of (a) at least one organophosphite compound and (b) at least one aromatic secondary amine or one substituted phenol or mixtures thereof. The compositions have been found to... | 11/09/2010 |
| 7772172 | Thin film lubricant for advanced tribological performance of storage medium A lubricant for improving the durability and reliability of recording media used in hard drives is disclosed. The lubricant comprises a perfluoropolyether main chain with a first end attached to a hexa(trifluoromethylphenoxy)cyclotriphosphazene, a second end attache... | 08/10/2010 |
| 7579304 | Thin film lubricant for advanced tribological performance of storage medium A lubricant for improving the durability and reliability of recording media used in hard drives is disclosed. The lubricant comprises a perfluoropolyether main chain with a first end attached to a hexa(trifluoromethylphenoxy) cyclotriphosphazene, a second end attach... | 08/25/2009 |
| 7510999 | Lubricant composition for magnetic recording media A lubricant composition is provided comprising a first liquid lubricant and a second liquid lubricant, wherein the first liquid lubricant contains a cyclotriphosphazene ring attached to at least one perfluoropolyether having a single terminal hydroxyl group, and the... | 03/31/2009 |
| 7351792 | Recombinant C140 receptor, its agonists and antagonists, and nucleic acids encoding the receptor Nucleic acid molecules encoding the C140 cell surface receptor have been cloned and sequenced. The availability of C140 receptor DNA permits the recombinant production of the C140 receptor which can be produced on the surface of a cell, including an oocyte. The nucl... | 04/01/2008 |
| 7277254 | Magnetic recording disk and process for manufacture thereof A magnetic recording disk having a substrate, a magnetic layer formed on the substrate, a protective layer formed on the magnetic layer and a lubricant layer formed on the protective layer, the lubricant layer containing a perfluoropolyether compound having an end m... | 10/02/2007 |
| 7252897 | Magnetic recording disk and process for manufacture thereof A magnetic recording disk having a substrate, a magnetic layer formed on the substrate, a protective layer formed on the magnetic layer and a lubricant layer formed on the protective layer, the lubricant layer containing a perfluoropolyether compound having an end m... | 08/07/2007 |
| 7208452 | Process for manufacturing alkylphosphonate monoesters The present invention discloses a process for manufacturing an alkylphosphonate monoester. The process may comprise partially hydrolyzing an alkyl phosphonate diester with an alkaline compound in a first solvent to provide a reaction mixture, wherein the first solve... | 04/24/2007 |
| 7060377 | Lubricant film containing additives for advanced tribological performance of magnetic storage medium A magnetic recording medium having a lubricant film containing a non-phase separated additive and a lubricant a base layer, wherein the additive is bonded to the base layer, for better and faster mobility of a lubricant to ensure rapid healing of areas of the medium... | 06/13/2006 |
| 7026509 | Cyclic phosphazene compounds and use thereof as additives of perfluoropolyether oils Cyclic phosphazene compounds of formula (I): wherein: Q is a cyclic compound of formula: A is an end group of the —OCF2X, —OC2F... | 04/11/2006 |
| 6816341 | Hard disk drive utilizing second lubricant over a first lubricant having a phosophezine group A recording element or a reproducing element in a head generates heat that decomposes lubricating agent adhered to a slider surface near the recording/reproducing element of the head. This decomposed lubricating agent leads to corrosion of the magnetic layer and the... | 11/09/2004 |
| 6815402 | Lubricating oil composition containing cyclic organophosphorus compound A lubricating oil composition which comprises at least one compound selected from specific cyclic organic phosphorus compounds is disclosed. The lubricating oil composition exhibits excellent extreme pressure property, seizure resistance and wear resistance a... | 11/09/2004 |
| 6764984 | Fluorinated lubricant additives Fluorinated dialkyl dithiophosphoric acids according to formula (I) and metallic salts thereof: the compounds are useful, for example, as additives for lubricant compositions. ... | 07/20/2004 |
| 6608009 | Phosphazene compounds and lubricants containing the same A phosphazene compound of the formula (1) or (5) which has an arrangement such that perfluoroxyalkylene units selected from --CF2 O-- and --CF2 CF2 O-- are randomly distributed, the compound having a functional terminal gr... | 08/19/2003 |
| 6025310 | Organic compounds suited to lubricating films on magnetic recording media The invention provides novel organic compounds, and more particularly those having excellent lubricity, compatible with lubricating organic compounds having a benzene ring and a phosphazine ring and retaining stability free of hydrolysis for a prolonged p... | 02/15/2000 |
| 5969015 | Monomeric and oligomeric bisphosphites as stabilisers for polyvinyl chloride Compositions, comprising (i) a halogen-containing polymeric material, and (ii) at least one phosphite of formula I ##STR1## wherein n is a number from 1 to 6, R is a divalent linking group of formulae as defined herein as well as of novel compounds of fo... | 10/19/1999 |
| 5910469 | Crude oil composition comprising an alkylphosphonate antifouling additive Alkylphosphonate ester compounds or acids thereof are disclosed as effective fouling inhibitors in liquid hydrocarbonaceous medium undergoing processing at elevated temperatures.... | 06/08/1999 |
| 5908817 | Lubricants containing a perfluoropolyalkyl ether and a fluoroalkylphosphazene A lubricant comprising a mixture of a perfluoropolyalkyl ether and a phosphazene is described. The lubricant is useful in thin-film magnetic recording disk applications, where very low static and dynamical coefficients of friction are desired and balling ... | 06/01/1999 |
| 5792733 | Antiwear compositions containing phosphorus compounds and olefins A composition of an oil of lubricating viscosity, a phosphorus compound represented by the formula ##STR1## and tautomers thereof, where each X is independently O or S, and an olefin of about 6 to about 30 carbon atoms exhibits improved antiwear ... | 08/11/1998 |
| 5700764 | Lubricant compositions Lubricants and additive packages that give exceptional performance as heavy duty gear lubricants are described. Four essential oil-soluble additive components are used in combination, viz., a metal-free sulfur-containing antiwear and/or extreme pressure a... | 12/23/1997 |
| 5624983 | Amorphous modification of 1,1',1"-nitrilo(triethyl-tris-[2,2'-methylene-bis(4,6-di-tert-butylpheny l)] phosphite) The new amorphous modification of 1,1',1"-nitrilo{triethyl-tris-[2,2'-methylene-bis(4,6-di-tert-butylphenyl) ]phosphite} is obtained by cooling rapidly said compound from the melt to ambient temperature. This amorphous form is an effective process sta... | 04/29/1997 |
| 5512621 | Alpha crystalline modification of 2,2',2"-nitrilo triethyl-tris-(3,3',5,5'-t'-biphenyl-2,2'-diyl) phosphite! The alpha crystalline modification of 2,2',2"-nitrilo triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2, 2'-diyl)phosphite! is obtained by crystallizing said compound from selected solvents, preferably from a mixture of an aromatic hydrocarbon solv... | 04/30/1996 |
| 5489635 | Crystalline modification of 1, 1', 1"- Nitril0 (tri-2-propyl-tris-[2,2'- ethylidene-bis (4, 6-di-tert-butylphenyl]phosphite) The new crystalline modification of 1,1',1"-nitrilo{tri-2-propyl-tris[2,2'-ethylidene-bis(4,6-di-tert-butylphe nyl)]phosphite} is obtained by crystallizing said compound from the melt at elevated temperatures. This crystalline form is an effective process ... | 02/06/1996 |
| 5489636 | Amorphous modification of 1,1',1"-nitrilo(tri-2-propyl-tris-[2,2'-ethylidene-bis(4,6-di-tert-butyl phenyl] phosphite) The new amorphous modification of 1,1',1"-nitrilo{tri-2-propyl-tris-[2,2'-ethylidene-bis(4,6-di-tert-butylph enyl)]phosphite } is obtained by cooling rapidly said compound from the melt to ambient temperature. This amorphous form is an effective process st... | 02/06/1996 |
| 5441655 | Phosphazene derivatives and use of same as stabilizers for oils and greases based on perfluoropolyethers New phosphazene derivatives, fully substituted by aromatic groups and perfluoropolyethereal chains, are utilized as stabilizers for oils and greases based on perfluoropolyethers. Such derivatives inhibit the degradation process affecting the perfluoropoly... | 08/15/1995 |
| 5405546 | Phosphorus-containing compositions for refrigeration systems The present invention is generally directed to a composition comprising: (A) at least 50% by weight of a fluorine-containing hydrocarbon having one or two carbon atoms; and (B) from about 9% to about 30% by weight of a phosphorus-containing lubricant compositi... | 04/11/1995 |
| 5399276 | Lubricant composition containing the reaction product of an olefinic compound and an alkoxylated-amine-phosphite Alkoxylated- or polyalkoxylate-amine-phosphite derived olefin adducts are superior as lubricating fluid media and as multifunctional additives with internal synergistic antioxidant and extreme pressure/antiwear properties for both mineral and synthetic lu... | 03/21/1995 |
| 5362419 | Dithiophosphoric acid derivatives as lubricant additives There are disclosed compounds of formula I ##STR1## R1 and R2 are each independently of the other C3 -C18 alkyl, C5 -C12 cycloalkyl, C5 -C6 cycloalkylmethyl, C | 11/08/1994 |
| 5348670 | Phosphorous amine lubricant additives Lubricant additives are disclosed which are produced by reacting an alkanolamine, a carboxylic acid and phosphorous acid. The reaction product may also include a boron compound and/or a monofunctional alcohol. The additives are useful in combination with ... | 09/20/1994 |
| 5344860 | Beta crystalline modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl- 2,2'-diyl) phosphite] The beta crystalline modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2, 2'-diyl) phosphite] is obtained by crystallizing said compound from the melt at elevated temperatures. The beta crystalline form is an effective... | 09/06/1994 |
| 5240622 | Dioxaphosphorinane compounds as stabilizers for organic materials Composition containing an organic polymer, with the exception of epoxy-based polymers, a lubricant, a metal-working fluid or a hydraulic fluid and, as stabilizer, at least one dioxaphosphorinane compound of the formulae ##STR1## wherein R1 | 08/31/1993 |
| 5230816 | 3,9-bis(dialkylamino)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecanes and stabilized compositions Compounds of formula I ##STR1## wherein R1, R2, R3 and R4 are each 2-ethylhexyl or are independently higher alkyl, or R1 and R2 are independently hydrogen or methyl, and R3 ... | 07/27/1993 |
| 5219477 | Antioxidant-containing cyclophosphazene compositions, antioxidants for use therein, and method therefor A cyclophosphazene fluid composition containing organometallic or inorganic metal salts as antioxidants the antioxidants for use therein, and a method therefor, are disclosed herein. Suitable organometallic salts are formed by reacting a metal hydroxide w... | 06/15/1993 |
| 5194166 | Phosphorous amine lubricant additives Lubricant additives are produced by reacting an alkoxylated amine with phosphorous acid. The additives preferably also contain a boron moiety which is reacted with the phosphorous acid and amine, preferably in a one step reaction. More preferably, a mono-... | 03/16/1993 |
| 5167844 | Lubricant formulations Formulation containing A) a lubricant and a mixture of B) for example, at least one of the compounds O,O-bis-2-ethylhexylsodium dithiophosphate, O,O-bis-2-ethylhexylsodium thionophosphate, O,O-bis-2-methylpropylsodium dithiophosphate, O,O-bis-nonylphenyls... | 12/01/1992 |
| 5104579 | Phosphonate adducts of olefinic lubricants having enhanced properties It has now been discovered that oligomers of C6 - C20 alpha-olefins, such as 1-decene, with branch ratios below 0.19 and high viscosity indices (HVI) can be functionalized to provide unique phosphite derivatives. Functionalized polya... | 04/14/1992 |
| 5073284 | Phosphonitrilic mixed esters A hydraulic fluid that remains solids-free at temperatures as low as about -30° C. and has a pour point as low as about -42° C. comprises a cyclic phosphazene oligomer mixture, the structural formula of each molecule of which contains 3 or 4 units selec... | 12/17/1991 |
| 5057235 | Sulfur-phosphorus adducts of chromium catalyzed polyalphaolefins Phosphorodithioate derivatives of oligomers of polyalphaolefins of high viscosity index for use as lubricants and lubricant additives is described.... | 10/15/1991 |
