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| Number | Title | Issue Date |
| 7767633 | Low sulfur and low phosphorus heavy duty diesel engine lubricating oil composition The present invention is directed to a low sulfur and low phosphorus heavy duty diesel engine lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity and (b) one or more dispersants (c) one or more anti-oxidants and (d) one or mo... | 08/03/2010 |
| 7585820 | Detergent composition for a low sulfur, low sulfated ash and low phosphorus lubricating oil for heavy duty diesel engines The present invention is directed to a low sulfur, low sulfated ash and low phosphorus lubricating oil composition for low emission heavy duty diesel engines comprising (a) a major amount of an oil of lubricating viscosity and (b) a detergent composition comprising ... | 09/08/2009 |
| 7563938 | Alkylated aromatic compositions, zeolite catalyst compositions and processes for making the same The present invention is directed to novel alkylated aromatic compositions, zeolite catalyst compositions and processes for making the same. The catalyst compositions comprise zeolite Y and mordenite zeolite having a controlled macropore structure. The present inven... | 07/21/2009 |
| 7563937 | Zeolite Y alkylation catalysts The present invention is directed to a zeolite Y catalyst having a controlled macropore structure. The present invention is also directed to a zeolite Y catalyst composite and a process for preparing the catalyst composite. The catalyst composite exhibits reduced de... | 07/21/2009 |
| 7468343 | Alkylxylene sulfonates for enhanced oil recovery processes The present invention is directed to a method for enhancing the recovery of oil from a subterranean reservoir which method employs an alkylxylene sulfonate that contains a high percentage of the 4-alkyl-1,2-dimethyl benzene isomer and a high percentage of alkyl grou... | 12/23/2008 |
| 7420019 | Method for preparation of polyolefins containing exo-olefin chain ends The present invention is directed to a method for preparation of polyolefins containing exo-olefin chain ends. The method involves quenching a cationic quasi-living polyolefin polymer system with one or more hindered secondary or tertiary amines. ... | 09/02/2008 |
| 7405185 | Process for making Group II metal overbased sulfurized alkylphenols The present invention is directed to a novel process for making Group II metal overbased sulfurized alkylphenols, which process uses alkylene carbonate as both a source of carbon dioxide and alkylene glycol. In particular, under the reaction conditions using ethylen... | 07/29/2008 |
| 7351864 | Process for preparation of Mannich condensation products useful as sequestering agents The present invention is directed to a process for preparing Mannich condensation product sequestering agents or mixtures of Mannich condensation product sequestering agents for use in fuels and lubricating oils. ... | 04/01/2008 |
| 7332460 | Alkylxylene sulfonates for enhanced oil recovery processes The present invention is directed to alkylxylene sulfonate for enhanced oil recovery processes. The alkylxylene moiety in the alkylxylene sulfonate contains a high percentage of the 4-alkyl-1,2-dimethyl benzene isomer and a high percentage of alkyl group attachment ... | 02/19/2008 |
| 7256161 | Process for making group II metal carbonated, overbased Mannich condensation products of alkylphenols This invention is directed to a novel process for making Group II metal carbonated, overbased Mannich condensation products of alkylphenols, which process uses ethylene carbonate as both a source of carbon dioxide and ethylene glycol. In particular, under the reacti... | 08/14/2007 |
| 7183452 | Alkylated aromatic compositions, zeolite catalyst compositions and processes for making the same The present invention is directed to novel alkylated aromatic compositions, zeolite catalyst compositions and processes for making the same. The catalyst compositions comprise zeolite Y and mordenite zeolite having a controlled macropore structure. The present inven... | 02/27/2007 |
| 7163911 | Carboxylated detergent-dispersant additive for lubricating oils The present invention provides a novel unsulfurized, carboxylate-containing additive for lubricating oils, comprising a mixture of alkaline earth metal salts (hydrocarbyl phenate/hydrocarbyl salicylate) and a reduced amount of unreacted hydrocarbyl phenols, as well ... | 01/16/2007 |
| 7109141 | Alkylated aromatic compositions, zeolite catalyst compositions and process for making the same The present invention is directed to novel alkylated aromatic compositions, zeolite catalyst compositions and processes for making the same. The catalyst compositions comprise zeolite Y and mordenite zeolite having a controlled macropore structure. The present inven... | 09/19/2006 |
| 7071370 | Mordenite zeolite alkylation catalyst The present invention is directed to a mordenite zeolite catalyst having a controlled macropore structure. The present invention is also directed to a mordenite zeolite catalyst composite and a process for preparing the catalyst composite. The catalyst composite exh... | 07/04/2006 |
| 7041863 | Zeolite Y alkylation catalysts The present invention is directed to a zeolite Y catalyst having a controlled macropore structure. The present invention is also directed to a zeolite Y catalyst composite and a process for preparing the catalyst composite. The catalyst composite exhibits reduced de... | 05/09/2006 |
| 6977319 | Alkylated aromatic compositions, zeolite catalyst compositions and processes for making the same The present invention is directed to novel alkylated aromatic compositions, zeolite catalyst compositions and processes for making the same. The catalyst compositions comprise zeolite Y and mordenite zeolite having a controlled macropore structure. The present inven... | 12/20/2005 |
| 6974788 | Zeolite Y alkylation catalysts The present invention is directed to a zeolite Y catalyst having a controlled macropore structure. The present invention is also directed to a zeolite Y catalyst composite and a process for preparing the catalyst composite. The catalyst composite exhibits reduced de... | 12/13/2005 |
| 6964935 | Mordenite zeolite alkylation catalysts The present invention is directed to a mordenite zeolite catalyst having a controlled macropore structure. The present invention is also directed to a mordenite zeolite catalyst composite and a process for preparing the catalyst composite. The catalyst composite exh... | 11/15/2005 |
| 6906011 | Polymeric dispersants prepared from copolymers of low molecular weight polyisobutene and unsaturated acidic reagent This invention is directed to a new low molecular weight copolymer (The PIB/UAR copolymer) that may be prepared by reacting a low molecular weight polyisobutene (PIB) having less than about 32 carbon atoms with an unsaturated acidic reagent in the presence of a free... | 06/14/2005 |
| 6849774 | Separation of dienes from olefins using ionic liquids Methods for separating di-olefins from mono-olefins, and olefins from non-olefins such as paraffins, oxygenates and aromatics; are provided. The methods use metal salts which complex both mono-olefins and di-olefins, but which selectively complex di-olefins in the p... | 02/01/2005 |
| 6784142 | Lubricating oil composition comprising borated and EC-treated succinimides and phenolic antioxidants An additive package comprising one or more borated dispersants, one or more EC-treated dispersants, and one or more phenolic antioxidants; a lubricating oil composition comprising said additive package; and a method of controlling bearing corrosion and valve train w... | 08/31/2004 |
