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WO/2000/042121A1 |
Hydrofining of petroleum and chemical feedstocks using bulk Group VIII/Group VIB catalysts. Preferred catalysts include those comprised of Ni-Mo-W.
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WO/2000/042125A1 |
A two stage hydrodesulfurizing process for producing low sulfur distillates. A distillate boiling range feedstock containing in excess of about 3,000 wppm sulfur is hydrodesulfurized in a first hydrodesulfurizing stage containing one or ...
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WO/2000/042124A1 |
A two stage hydrodesulfurizing process for producing low sulfur distillates. A distillate boiling range feedstock containing in excess of about 3,000 wppm sulfur is hydrodesulfurized in a first hydrdesulfurzing stage containing one or mo...
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WO/2000/041988A1 |
An improved process for preparing alcohols by the Oxo process. More particularly this invention relates to an improvement in the hydrogenation step of the Oxo process characterized in the use of certain bulk multimetallic hydrogenation c...
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WO/2000/042082A1 |
This invention provides a process for hydrotreating hydrocarbon resins, which process comprises contacting a feedstock comprising a hydrocarbon resin or rosin, under suitable hydrotreating conditions, with a bulk multimetallic catalyst c...
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WO/2000/042129A1 |
A two stage hydrodesulfurizing process for producing low sulfur distillates. A distillate boiling range feedstock containing in excess of about 3,000 wppm sulfur is hydrodesulfurized in a first hydrodesulfurizing stage containing one or ...
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WO/2000/042119A1 |
Hydroconversion processing of petroleum and chemical feedstocks using bulk Group VIII/Group VIB catalysts. Preferred catalysts include those comprised of Ni-Mo-W.
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WO/2000/034420A1 |
A viscosity modifier for lubricating oils which is capable of giving a lubricating oil composition excellent in low-temperature properties; and a lubricating oil composition which contains the viscosity modifier and has excellent low-tem...
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WO/2000/022074A1 |
Lubricating oils exhibiting anti rust-properties are obtained by adding to the lubricating oil an acidic anti-rust additive and an acid scavenger such as carbodiimide, in a specific sequence.
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WO/2000/014187A2 |
Premium synthetic lubricants comprise a synthetic isoparaffinic hydrocarbon base stock and an effective amount of at least one, and typically a plurality of lubricant additives such as a detergent, dispersant, antioxidant, antiwear addit...
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WO/1999/052999A1 |
Concentrates for lubricating oil compositions are prepared by mixing at elevated temperature: (i) at least one high molecular weight ashless dispersant; (ii) at least one oil-soluble overbased metal detergent; and (iii) at least one othe...
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WO/1999/052997A1 |
The invention relates to solid lubricants and a solid lubricant combination with a tin sulphide and carbon base, to a method for producing them and to their use in friction pad mixtures and friction pads such as brake pads or clutch lini...
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WO/1999/045084A1 |
A process for producing a lubricating oil basestock having at least 90 wt % saturates and a VI of at least 105 by solvent extracting a feedstock in unit (20) to produce a raffinate, solvent dewaxing the raffinate, selectively hydroconver...
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WO/1999/042541A1 |
Greases having low noise properties are prepared by cycling kettle contents, during at least the initial stage of soap-forming or other thickening, round a processing loop comprising (i) agitation and heating and (ii) shearing. Lithium c...
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WO/1999/041327A1 |
A process for producing a lubricating oil basestock having at least 90 wt.% saturates and a VI of at least 105 by selectively hydroconverting a raffinate from a solvent extraction zone (20) to a two step hydroconversion through a first h...
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WO/1999/027038A1 |
A grease made by combining polychlorotrifluoroethylene oil with a thickening agent comprising polychlorotrifluoroethylene (PCTFE) polymer. The thickening agent is made by polymerizing chlorotrifluoroethylene [R-1113] in the presence of a...
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WO/1999/010416A1 |
A process for forming a dispersion of dry polytetrafluoroethylene particles in an organic carrier fluid comprising the steps of: a) surface functionalizing the polytetrafluoroethylene particles having an average primary particle size of ...
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WO/1998/044075A1 |
A process for reducing the Mutagenicity Index and/or the PCA content of a lubricating oil extract by re-extracting a lubricating oil extract with a second extraction solvent, different from the first extraction solvent, to form a seconda...
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WO/1998/023706A1 |
The invention concerns a method for improving the pour-point of a feedstock containing paraffin of more than 10 carbon atoms, whereby the feedstock to be treated is contacted with a catalyst containing NU-86 zeolite and at least a hydro-...
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WO/1998/010044A1 |
The invention concerns a mixture of superalkalified earth-alkaline comprising: (a) 50 % to 85 % by weight of one mono-alkyl-sulphonate with a C�14?-C�40? linear chain in which the molar ratio of phenyl-sulphonate substituent in posit...
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WO/1998/005409A1 |
An oil filter (10) includes a colloidal suspension (12) of PTFE particles less than 2 microns in size retained by capillary forces within the intricacies of the filter media (26) until the filter (10) is installed and engine oil flows at...
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WO/1997/047710A1 |
The invention relates to lubricating grease compositions which consist of (a) an oil based on hydrocarbons; (b) a perfluorinated polyalkyl ether oil of the general formula A' - (O-CF2)v-(O-C2F4)w-(O-C3F6)x-(O-C4F8)y-(O-CF2CF(CF3))z-O-A''...
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WO/1997/026238A1 |
A lubricant which is prepared from at least one synthetic ester composition exhibiting thermal and oxidative stability which comprises the reaction product of: 3,5,5-trimethyl-1-hexanol and an acid or anhydride; and a lubricant additive ...
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WO/1997/024417A1 |
Sulphur monochloride and a phenol are reacted to produce an oil-soluble intermediate which is then reacted with an unsaturated organic compound having one or more olefinic or acetylenic bonds to reduce the amount of active sulphur in the...
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WO/1997/024418A1 |
A homogenous product is formed by heating at a temperature in the range of from 50� to 150 �C a mixture of a benzotriazole and a 2,5-dihydrocarbyldithio-1,3,4-thiadiazole.
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WO/1997/020640A1 |
Process comprising the application on the metal surface of the part of an aqueous dispersion of a copolymer, which is then dried so as to obtain a non cross-linked film having a thickness comprised between 0.5 and 5 'mu'm; the copolymer ...
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WO/1997/020641A1 |
A method comprising the use of a non-cross-linked block or graft copolymer film having a thickness of 0.5-5 'mu'm and including at least one "polar" block (ii) and at least one "apolar" block (i). The solubility parameters of the monomer...
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WO/1997/017001A1 |
A bladder for containing a cushioning medium. The bladder includes open compartments which are created by welding or otherwise fastening a first bladder wall against a second bladder wall. The periphery of the bladder walls are welded or...
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WO/1996/039065A1 |
A composite mixture of spherical objects and lubricant useful for its cushioning properties is disclosed and claimed. The composite mixture may be composed of microspheres typically less than 2000 microns in diameter with inert atmospher...
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WO/1996/034931A1 |
The present invention discloses the use of nonmetallic, finely divided polymeric or natural fibers in anti-seize thread compound formulations for use on rotary shouldered, oilfield tubular good or tapered threaded connections. The additi...
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WO/1996/017902A1 |
Petroleum wax feeds having a low oil content are converted to high viscosity index lubricants by a two-step hydrocracking-hydroisomerization process in which the wax feed is initially subjected to hydrocracking under mild conditions with...
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WO/1996/016113A2 |
The invention provides composites of organic polymeric compositions including a matrix of an organic polymer and a filler distributed throughout the matrix, the filler being present in the matrix substantially as separate particles, each...
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WO/1996/011244A1 |
A process and an apparatus for lubricating with multiple phases of lubricants and a multiphase lubricant, are described. Lubricants of different phases (10 and 12) are used in a process of lubricating one or more operating components (22...
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WO/1996/004356A1 |
A process is described wherein olefins or acetylenic compounds are reacted with sulfurised intermediates to produce nitrile seal compatible additives. Olefin or acetylenic compound reaction with sulfurised compounds e.g. sulfurised pheno...
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WO/1996/002329A1 |
A method for treating the surfaces of solid materials by adjusting the friction coefficient of the surface for contact with a single- or multiphase medium containing water. The method essentially comprises subjecting the surface in quest...
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WO/1995/032045A1 |
An oil filter (10) utilizes a thermoplastic material (22) having oil oxidation and acidification arresting additives mounted in a casing (11) between particulate filtering material (19) and a felt pad (21). The thermoplastic material is ...
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WO/1995/028719A1 |
A magnetorheological material containing a carrier fluid and a magnetically active particle. The particle has been modified so that the surface of the particle is substantially free of contamination products. The contamination products a...
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WO/1995/028460A1 |
An additive for lubricating oils of internal combustion engines containing the imide- and/or ester and/or ester-amide derivatives of the reaction product of an unsaturated polyisobutylene and some unsaturated reactive dicarboxylic acids ...
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WO/1994/019282A1 |
High-activity calcium oxide produced by firing eggshells at 900-1,500 �C. A powdery preparation comprising high-activity calcium oxide produced by firing eggshells at 900-1,500 �C. A discharged animal blood powder produced by reactin...
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WO/1994/014924A1 |
Hydrocarbon lubricants having a high viscosity index (V.I.) and low pour point are produced by hydroisomerizing, over zeolite beta, a waxy lube feed such as a waxy vacuum gas oil whose aromatic components are removed by extraction, e.g. ...
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WO/1994/013762A1 |
A low sediment process for forming a borated, oil soluble, polymer-substituted, nitrogen- or ester-containing lubricating oil additive. A polymer-substituted, nitrogen- or ester-containing additive in the presence of a solvent therefor, ...
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WO/1994/013706A1 |
A method is provided for the direct synthesis by living cationic polymerization of novel polymeric materials functionalized with nitrogen-containing functional groups such as terminal azido, cyano, carbonylamino, cyanato, thiocyanato or ...
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WO/1994/010694A1 |
A magnetorheological material containing a carrier fluid and a magnetically active particle. The particle has been modified so that the surface of the particle is substantially free of contamination products. The contamination products a...
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WO/1994/003281A1 |
A method of lubricating a mechanical friction part comprises the following essential steps: 1) high density functionalisation of the surface to be treated, preferably to obtain 1014 to 1015 functionalised sites per cm2; 2) impregnation o...
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WO/1993/018122A1 |
NaOH can be used to remove hydroperoxides from a lubricating oil provided the oil contains a metal thiophosphate. This extends the useful life of the oil and the equipment being lubricated. In a preferred embodiment, the NaOH is immobili...
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WO/1993/006723A1 |
A chemical fungicide tablet is disclosed and a method of producing such a tablet and a method of fungicidal treatment of a fluid reservoir through use of the tablet.
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WO/1993/006195A1 |
Ultrasound is used in the preparation of overbased metal-containing detergents, for example, overbased sulphonates or phenates of calcium or magnesium, suitable for use as additives for oil-based compositions, for example, lubricating oi...
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WO/1993/003126A1 |
Diesel engine particulate emissions can be reduced by the use of a crankcase lubricating composition having one or more of characteristics or components (a) to (e): (a) a relatively low high shear viscosity and a relatively low volatilit...
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WO/1993/001262A1 |
A substantially anhydrous lubricating composition containing solid particles of a fluorinated (co)polymer having a maximum size of 1 mum and coated with an ethoxylated nonylphenol having 10-12 ethylene oxide molecules. A preparation meth...
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WO/1993/000416A1 |
Used lubricating oils can be rejuvenated by passing the oil through a filter system comprising a hollow solid composite that contains a thermoplastic binder and an active filter media of a chemically active filter media, a physically act...
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