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| Number | Title | Issue Date |
| 7851421 | Detergent additives for lubricating oil compositions An oil-soluble hydrocarbyl phenol aldehyde condensate having the following structure: wherein n is 0 to 10, preferably 1 to 8, more preferably 2 to 6, and most preferably 3 to 5; Y is a divalent bridging group, and is prefe... | 12/14/2010 |
| 7786060 | Lubricating oil additive concentrates Lubricating oil additive concentrates containing oil of lubricating viscosity, at least one basic metal complex, an oil-soluble hydrocarbyl phenol aldehyde condensate, and an organic friction modifier containing at least one hydroxyl and/or amino group. ... | 08/31/2010 |
| 7384536 | Processes for making lubricant blends with low brookfield viscosities Lubricant blends and finished gear oils comprising a Fischer-Tropsch derived lubricant base oil fraction, a petroleum derived base oil, and a pour point depressant are provided. The Fischer-Tropsch derived lubricant base oil fraction comprises less than 0.30 weight ... | 06/10/2008 |
| 7358217 | Quenching oil compositions Quenching oil compositions comprising (1) an oil having kinematic viscosity (ASTM Test Method D-445) at 40° C. ranging from about 4 to about 45 mm2sec−1 (about 40 to about 210 Saybolt Universal Seconds (SUS)) and having a saturated content from about 80% to about... | 04/15/2008 |
| 7285516 | Additive formulation for lubricating oils Lubricating oils containing an additive formulation including at least one sulphonate, saligenin and salixarate detergent provide improved wear performance and decreased sulphur and phosphorus emissions. ... | 10/23/2007 |
| 7238651 | Process for preparing an overbased detergent The invention relates to a process for preparing an overbased metal detergent in an oil medium comprising the steps of: (1) providing a metal salt selected from the group consisting of a hydrocarbyl-substituted organic acid; a hydrocarbyl-substituted phenol, a phena... | 07/03/2007 |
| 7100367 | Device for exhaust gas treatment of a combustion system A device is provided for the exhaust gas treatment of a combustion system, e.g., a diesel combustion system. The device has a first storage unit for storing at least one urea-water solution, and an exhaust gas treatment is implemented without great expenditure. Acco... | 09/05/2006 |
| 6825154 | Crystal formation inhibition in lubricating compositions Lubricating oil formulations comprising base oil, sulfur-phosphorous anti-wear/extreme pressure agents and hindered phenol antioxidants which anti-wear/extreme-pressure agents and hindered phenolic antioxidants are prone to crystal formation wherein the base oil is ... | 11/30/2004 |
| 6821933 | Additives for improving the cold flow properties and the storage stability of crude oil The invention relates to additives for improving the flowability of mineral oils, containing: A) 1-40 wt. % of at least one copolymer, which is oil-soluble and improves the cold flow properties of mineral oil, selected from A1) cop... | 11/23/2004 |
| 6764982 | Lubricating oil composition This invention relates to a lubricating oil composition, comprising: (A) a base oil; and a phosphorus-containing compound represented by the formulae wherein in Formulae (B-I) and (B-II), R1, R2 and... | 07/20/2004 |
| 6750183 | Lubricating oil composition Lubricating oil compositions providing superior soot dispersing characteristics, which contain a combination of a high molecular weight dispersant and a soot dispersant comprising a linked aromatic oligomer. ... | 06/15/2004 |
| 6689726 | Crystal formation reduction in lubricating compositions Lubricating oil formulations comprising base oil, sulfur-phosphorous anti-wear/extreme pressure agent and hindered phenol antioxidant, which combination of extreme pressure agent and hindered phenol antioxidant produces crystals and containing antioxidant... | 02/10/2004 |
| 6673751 | Boron containing overbased calixarates and lubricants and methods thereof A composition comprises a sulphur- and phosphorus-free, boron-containing overbased metal salt of a calixarene. The boron-containing overbased calixarene is useful in a lubricant additive composition, a lubricant composition, and a method to lubricate an i... | 01/06/2004 |
| 6610637 | Synthetic diesel engine lubricants containing dispersant-viscosity modifier and functionalized phenol detergent A lubricant containing (a) a synthetic base oil composition having an overall kinematic viscosity of at least about 4.8×10-6 m2 /s (4.8 cSt) at 100° C. and a viscosity index of at least about 110; (b) a dispersant-viscosity modifie... | 08/26/2003 |
| 6596672 | Low ash lubricant compositions containing multiple overbased materials and multiple antioxidants A low sulfate ash lubricating oil composition comprising an oil of lubricating viscosity, 0.1 to 3.0% of a calcium overbased acidic material, 0.1 to 2.0% of a magnesium overbased acidic material, and at least 0.5% of a combination of an alkylene-coupled h... | 07/22/2003 |
| 6559105 | Lubricant compositions containing ester-substituted hindered phenol antioxidants A composition of an antioxidant of the formula ##STR1## where R3 is an alkyl group of 2 to 6 carbon atoms, and a dispersant or a detergent, is a useful additive package for lubricant compositions.... | 05/06/2003 |
| 6331510 | Synthetic diesel engine lubricants containing dispersant-viscosity modifier and functionalized phenol detergent A lubricant containing (a) a synthetic base oil composition having an overall kinematic viscosity of at least about 4.8×10-6 m2 /s (4.8 cSt) at 100° C. and a viscosity index of at least about 110; (b) a dispersant-viscosity modifie... | 12/18/2001 |
| 6310009 | Lubricating oil compositions containing saligenin derivatives A saligenin derivative such as the magnesium salt represented by the formula ##STR1## is useful as an additive for a lubricating composition. Preferably X is --CHO or --CH2 OH, and Y is --CH2 -- or --CH2 OCH2 --... | 10/30/2001 |
| 6268320 | Sulphur-containing calixarenes, metal salts thereof, and additive and lubricating oil compositions containing them This invention relates to a composition comprising at least one sulphur-containing calixarene represented by formula (I) ##STR1## or a metal salt of said calixarene, wherein in formula (I): Y is a divalent bridging group, at least one of said bridging gro... | 07/31/2001 |
| 6232277 | Lubricating oil compositions There are disclosed fuel compositions containing an additive formed by admixture of (i) at least one ethylene polymer, (ii) the product of the condensation reaction between an aldehyde or ketone or reactive equivalent thereof and at least one compound com... | 05/15/2001 |
| 6174844 | Overbased metal calixarates, their preparation and lubricating oil compositions containing them An overbased metal salt of a sulphur-free calixarene having a substituent hydroxyl group or groups available for reaction with a metal base, the calixarene having a molecular weight of at least 1880.... | 01/16/2001 |
| 6010988 | Lubricating oil composition A lubricating oil composition for a wet clutch, particularly for an automatic transmission, which comprises mineral oil, synthetic oil or a mixture thereof as a base oil, and which contains 0.1 to 4.0% by weight of at least one compound selected from the ... | 01/04/2000 |
| 5908815 | Heat resistant grease A heat resistant grease composition containing a fluorosilicone base oil, a fluororesin thickener and an additive, that has a reduced gelling, reduced base oil evaporation, and stable heat resistance.... | 06/01/1999 |
| 5866030 | Enhanced hydrocarbon lubricants for use with immiscible refrigerants 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.... | 02/02/1999 |
| 5707946 | Pour point depressants and their use The pour point of paraffin-containing liquids is reduced by adding to the liquid an effective amount of a pour point depressant which is the reaction product of a hydrocarbyl-substituted phenol having a number average of greater than 30 carbon atoms in th... | 01/13/1998 |
| 5672574 | Stabilizers for organic materials Compositions comprising compounds of formula ##STR1## wherein the radicals R and R1 to R5 are as defined in claim 1, are described. Some of those compounds are novel. They are suitable for the stabilization of organic materials.... | 09/30/1997 |
| 5602084 | Detergent additives for lubricating oils, their preparation and use An additive concentrate preferably having a TBN greater than 300 suitable for incorporation in a finished lubricating oil composition, the additive concentrate comprising (a) a lubricating oil, and (b) a lubricating oil soluble detergent which is an overbased ... | 02/11/1997 |
| 5589445 | Overbased metal salts, their preparation and use An overbased metal salt of a hydrocarbyl-substituted sulphurised or non-sulphurised phenol, a calixarene having a substituent hydroxyl group or groups available for reaction with metal base or a linear phenol/formaldehyde resin wherein the metal moiety co... | 12/31/1996 |
| 5332516 | Friction reducing composition and lubricant for motors A friction reducing compound composed of a chlorinated paraffin, a rust-inhibiting compound, and an optional antimicrobial compound, and a lubricant comprising the friction reducing composition blended with a conventional lubricant.... | 07/26/1994 |
| 5268115 | Alkyl-substituted hydroxyaromatic compounds useful as a multifunctional viscosity index improver An oil-soluble alkyl substituted hydroxyaromatic compound, wherein the alkyl-moiety of the aromatic compounds is derived from at least one ethylene alpha-olefin copolymer of greater or above 25,000 to about 5000,000 number average molecular weight, said c... | 12/07/1993 |
| 5254274 | Alkylaromatic lubricant fluids Aromatic compounds are alkylated with C20 -C1300 olefinic oligomers using an acidic alkylation catalyst to produce alkylated aromatic products, usually alkylaromatic hydrocarbons. The olefinic oligomers used as alkylating agents are ... | 10/19/1993 |
| 5213701 | Composition containing an oligomeric 1,2,3-trihydroxybenzene additive A compound is a condensate of 1,2,3-trihydroxybenzene with an aldehyde. The condensate is a macrocyclic compound such as a cyclic tetramer. The aldehyde is preferably a long-chain aldehyde such as hexanal, dodecanal or tetradecanal. The condensate can be ... | 05/25/1993 |
| 5205946 | Process for the production of overbased calixarates Non-sulphurized overbased metal salts of sulphur-free calixarenes having a substituent hydroxyl group or groups available for reaction with metal base and their preparation are claimed. The salts are useful as additives to lubricating oils by reason of th... | 04/27/1993 |
| 5118875 | Method of preparing alkyl phenol-formaldehyde condensates Additives of improving the low temperature flow properties and oxidative stability of hydrocarbon oils are disclosed, which comprise the alkylation of a phenol in the presence of a polar aprotic cosolvent to produce an essentially linear alkylated phenol ... | 06/02/1992 |
| 5114601 | Overbased calixarates, compositions containing them and use as lubricating oil additives Non-sulphurized overbased metal salts of sulphur-free calixarenes having a substituent hydroxyl group or groups available for reaction with metal base are claimed. The salts are useful as additives to lubricating oils by reason of their acids neutralizati... | 05/19/1992 |
| 5039437 | Alkyl phenol-formaldehyde condensates as lubricating oil additives Additives for improving the low temperature flow properties of hydrocarbon oils are disclosed, which comprise the condensation reaction product of alkylated phenol and aldehyde, wherein: (a) the polymer composition has a number average molecular weight of at ... | 08/13/1991 |
| 5024775 | Alkyl phenol stabilizer compositions for fuels and lubricants Liquid mixtures of alkyl phenols composed of from 1 to 8 wt % 2-tert-butylphenol; from 4 to 12 wt % of 2,6-di-tert-butylphenol; from 4 to 12 wt % of 2-tri-tert-butylphenol; and from 65 to 80 wt % of 2,6-di-tert-butyl-4-n-butylphenol have a balance of prop... | 06/18/1991 |
| 4770797 | Carbon fluoride chloride lubricant The application of carbon fluoride chloride in dry lubricant compositions is disclosed. The material offers a substantial improvement in lubricating properties over prior art carbon fluoride dry lubricants. The improved lubricant is comprised of carbon fluorid... | 09/13/1988 |
| 4532059 | Benzylated phenols Compounds of the formula ##STR1## in which R1, R2, R3, R4 and R5 are as defined in the main claim, are suitable for use as stabilizers for organic material, such as polymers or lubricants. In add... | 07/30/1985 |
| 4513109 | Phenols and use thereof as stabilizers The invention relates to phenols which contain a number of aromatic nuclei and in which the bridge formation of these nuclei is in the meta-position to the OH groups. These phenols have the formula I, wherein R1, R2, R3 an... | 04/23/1985 |
