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| Number | Title | Issue Date |
| 8016898 | Method for producing Mannich adducts that contain polyisobutylene phenol Polyisobutenylphenol-containing Mannich adducts are prepared by a) alkylation of a phenol with highly reactive polyisobutene having a number average molecular weight of less than 1000 and a polydispersity of less than 3.0, at below about 50° C. in the ... | 09/13/2011 |
| 7988749 | Method for producing Mannich adducts that contain polyisobutylene phenol Polyisobutenylphenol-containing Mannich adducts are prepared by a) alkylation of a phenol with highly reactive polyisobutene at below about 50° C. in the presence of an alkylation catalyst; b) reaction of the reaction product from a) with ... | 08/02/2011 |
| 7597726 | Mannich detergents for hydrocarbon fuels New, highly effective Mannich detergents for use in hydrocarbon fuels are described which reduce engine deposits in spark and compression ignition internal combustion engines. They are Mannich condensation reaction products obtained from reacting: (i) a polyamine ha... | 10/06/2009 |
| 7470292 | Antioxidant composition for motor gasoline An antioxidant composition effective for stabilizing gasoline and gasoline components contains from approximately 50-95% by weight of at least one Mannich base and from approximately 5-50% by weight of at least one amine. The Mannich base is derived from p-substitut... | 12/30/2008 |
| 7422161 | Treated port fuel injectors Treated port fuel injectors are disclosed. The treated port fuel injectors have a surface coated with a film which resists or limits deposit formation on the injector surface. The film may be formed by contacting the port fuel injector with: (i) a succinimide compou... | 09/09/2008 |
| 7384434 | Reaction of phenols with intermediate triazines An improved process for preparing a Mannich product employs an intermediate or pre-formed triazine. The product is useful as a detergent in fuel compositions. The fuel compositions containing the Mannich product are useful for controlling intake valve deposits in en... | 06/10/2008 |
| 7208022 | Ethanol-diesel fuel composition and methods thereof A fuel composition for use in an internal combustion engine containing (a) a diesel fuel, (b) ethanol, (c) a surfactant, and optionally (d) a combustion improver, which provides lubricity to the engine and reduces exhaust emissions. ... | 04/24/2007 |
| 7195654 | Gasoline additive concentrate composition and fuel composition and method thereof A gasoline additive concentrate composition comprises a solvent, an alkoxylated fatty amine, and a partial ester having at least one free hydroxyl group and formed by reacting at least one fatty carboxylic acid and at least one polyhydric alcohol. A fuel composition... | 03/27/2007 |
| 7195898 | Method for the production of -hydroxybenzoate in species of pseudomonas and Bacterial strains transformed with the pcu genes are useful for the production of para-hydroxybenzoate (PHBA). Applicant has provided the p-cresol utilizing (pcu) and tmoX gene sequences from Pseudomonas mendocina KR-1, the proteins encoded by these sequences... | 03/27/2007 |
| 7112230 | Fuels compositions for direct injection gasoline engines Injector deposits in a direct injection gasoline engine are reduced by providing as fuel for the operation of said direct injection engine a fuel composition comprising a fuel-soluble compound having the formula (I): | 09/26/2006 |
| 7083953 | Method for the production of p-Hydrozybenzoate in species of and Bacterial strains transformed with the pcu genes are useful for the production of para-hydroxybenzoate (PHBA). Applicant has provided the p-cresol utilizing (pcu) and tmoX gene sequences from Pseudomonas mendocina KR-1, the proteins encoded by these sequences... | 08/01/2006 |
| 6913630 | Amino alkylphenol emulsifiers for an aqueous hydrocarbon fuel A novel crosslinked emulsifier is employed to produce a stable aqueous hydrocarbon fuel emulsion. ... | 07/05/2005 |
| 6800103 | Secondary amine mannich detergents New, highly effective detergent/dispersants for use in spark-ignition fuels comprising Mannich condensation products formed from (i) at least one substituted hydroxyaromatic compound having on the ring both (a) an aliphatic hydrocarbyl substituent derived from a pol... | 10/05/2004 |
| 6797021 | Process of preparation of novel mannich bases from hydrogenated and distilled cashew nut shell liquid (CNSL) for use as additive in liquid hydrocarbon fuels A process for the preparation of Mannich condensation products from hydrogenated and distilled Cashew Nut Shell Liquid, amines and aldehydes which provides improved detergency in the gasoline. Optionally, a polymeric dispersant, a non-volatile hydrocarbon carrier fl... | 09/28/2004 |
| 6749651 | Fuel additive compositions containing a mannich condensation product, a poly (oxyalkylene) monool, and a carboxylic acid A fuel additive composition comprising: a) a Mannich condensation product of (1) a high molecular weight alkyl-substituted hydroxyaromatic compound (2) an amine having the formula: wherein A is CH or nitrogen, ... | 06/15/2004 |
| 6743266 | Fuel additive composition for improving delivery of friction modifier A fuel additive composition for improving the delivery of friction modifier to the lubricant oil of an internal combustion engine comprising (a) a friction modifying amount of a reaction product of at least one natural or synthetic oil and at least one alkanolamine;... | 06/01/2004 |
| 6733551 | Method of improving the compatibility of a fuel additive composition containing a Mannich condensation product A method of improving the compatibility of a fuel additive composition comprising blending together the following components: a) a Mannich condensation product of (1) a high molecular weight alkyl-substituted hydroxyaromatic compound, (2) an amine having the ... | 05/11/2004 |
| 6660050 | Method for controlling deposits in the fuel reformer of a fuel cell system A method for controlling the deposits in the fuel vaporizer of a fuel reformer used to prepare a liquid hydrocarbon for use as a fuel in a fuel cell which comprises introducing into the fuel vaporizer a liquid hydrocarbon containing an effective deposit c... | 12/09/2003 |
| 6514297 | Detergents for use in preventing formation of iron complexes in hydrocarbon fuels An improved detergent for use in hydrocarbon fuels comprising the composition produced by mixing (1) the Mannich reaction product of a polyisobutene-substituted phenol, (preferably, where the polyisobutene from which the substituted phenol is derived cont... | 02/04/2003 |
| 6511518 | Fuel additive compositions containing a mannich condensation product, a poly(oxyalkylene) monool, a polyolefin, and a carboxylic acid A fuel additive composition comprising: a) a Mannich condensation product of (1) a high molecular weight alkyl-substituted hydroxyaromatic compound wherein the alkyl group has a number average molecular weight of from about 300 to about 5,000 (2) an amine... | 01/28/2003 |
| 6511519 | Fuel additive compositions containing a mannich condensation product, a poly(oxyalkylene) monool, and a carboxylic acid A fuel additive composition comprising: a) a Mannich condensation product of (1) a high molecular weight alkyl-substituted hydroxyaromatic compound wherein the alkyl group has a number average molecular weight of from about 300 to about 5,000 (2) an amine... | 01/28/2003 |
| 6458172 | Fuel additive compositions and fuel compositions containing detergents and fluidizers The present invention is directed to fuel additive compositions of detergents combined with fluidizers and to hydrocarbon fuel compositions containing these fuel additive compositions. The fuel additive compositions of the present invention combine a Mannich ... | 10/01/2002 |
| 6270539 | Mannich dispersants with enhanced lubricity Reaction products of i) a compound containing at least one primary or secondary amine group and at least one hydroxyl group; ii) a polyamine containing at least two amine groups wherein at least one of the amine groups is a primary or secondary amine, and... | 08/07/2001 |
| 6261327 | Additive concentrates for rapidly reducing octane requirement The present invention is directed to an additive concentrate for reducing octane requirement comprising a cyclic amide alkoxylate compound of the formula I: ##STR1## wherein x is from 3 to 11; y is from 1 to 50; R1 and R2 are each ... | 07/17/2001 |
| 6179885 | Aromatic Mannich compound-containing composition and process for making same This invention relates to a composition, comprising: (I) an aromatic Mannich compound derived from: (A) a hydroxy containing aromatic compound having the formula ##STR1## wherein in Formula (A-1): Ar is an aromatic group; m is 1, 2 or 3; n is a number from 1 ... | 01/30/2001 |
| 6176886 | Middle distillate fuels with enhanced lubricity comprising the reaction product of a phenol formaldehyde resin, an aldehyde and an amino alcohol Mannich reaction products are disclosed as additives for hydrocarbon fuels. The Mannich reaction products are added to a low sulfur content, middle-distillate, compression ignition fuels in an amount effective to improve the lubricity of the fuel, typical... | 01/23/2001 |
| 6117198 | Detergents for hydrocarbon fuels Compounds comprising a Mannich reaction product of a) polyisobutene-substituted alkylated succinimide, wherein the alkylated succinimide is derived from a succinate and an alkylene polyamine; b) an aldehyde; c) an alkyl substituted phenol; are disclosed, which are ... | 09/12/2000 |
| 6048373 | Fuels compositions containing polybutenes of narrow molecular weight distribution A fuel composition comprising a spark-ignition fuel; a Mannich detergent; and a polybutene having a molecular weight distribution of 1.4 or less.... | 04/11/2000 |
| 5876468 | Detergents for hydrocarbon fuels Compounds comprising a Mannich reaction product of a) a polyisobutene-substituted phenol wherein at least 70% of the terminal olefinic double bonds in the polyisobutene are of the vinylidene type; b) an aldehyde; and c) ethylene diamine are disclosed, which are sho... | 03/02/1999 |
| 5725612 | Additives for minimizing intake valve deposits, and their use New, highly effective detergent/dispersants for use in spark ignition fuels are described. They are Mannich condensation products formed from (i) one mole part of at least one substituted hydroxyaromatic compound having on the ring both (a) an aliphatic h... | 03/10/1998 |
| 5697988 | Fuel compositions This invention relates to a novel fuel additive composition which provides reduced engine deposits and control of octane requirement increase in engines. The composition comprises: a) a Mannich reaction product of (i) a high molecular weight alkyl-substit... | 12/16/1997 |
| 5667539 | Oleaginous compositions Compounds of the formula I below are useful as additives in oleaginous compositions: ##STR1## wherein B represents an aromatic system, A represents a hydrocarbyl group, R1 and R2 are the same or are different and each independen... | 09/16/1997 |
| 5634951 | Additives for minimizing intake valve deposits, and their use New, highly effective detergent/dispersants for use in spark ignition fuels are described. They are Mannich condensation products formed from (i) one mole part of hydroxyaromatic compound having on the ring an aliphatic hydrocarbyl substituent derived fro... | 06/03/1997 |
| 5558683 | Mannich base derivatives, and the production and uses thereof Compounds are described in which a phenolic moiety is linked to a polyamine moiety by means of a Mannich base linkage, and the polyamine moiety is linked to an alkylene-poly(oxyalkylene) moiety by means of a urea linkage in which one of the nitrogen atoms... | 09/24/1996 |
| 5514190 | Fuel compositions and additives therefor A highly effective fuel additive composition for control of intake valve deposits is described. It comprises (a) a gasoline-soluble Mannich reaction product of (i) a high molecular weight alkyl-substituted phenol, (ii) amine, and (iii) aldehyde; (b) a gas... | 05/07/1996 |
| 5512067 | Asymmetrical mannich base derivatives and the production and uses thereof Compounds are described in which a polyamine moiety is linked to a phenolic moiety by a Mannich base linkage involving one of the amino groups of the polyamine moiety, and in which an aminoalkylene-poly(oxyalkylene) moiety is linked to the phenolic moiety... | 04/30/1996 |
| 5503644 | Gasoline composition for reducing intake valve deposits in port fuel injected engines Intake valve deposits in port fuel injected engines are reduced by using a fuel containing a mixture of (a) an oil soluble polyamine selected from (i) an aliphatic alkylene polyamine containing at least one olefinic polymer chain attached to a nitrogen an... | 04/02/1996 |
| 5482523 | Mannich condensation products of poly(oxyalkylene) hydroxyaromatic ethers and fuel compositions containing the same Mannich condensation products prepared by the condensation of a compound of the formula: ##STR1## wherein R1 is hydrogen, hydroxy, lower alkyl or lower alkoxy; R3 and R4 are independently hydrogen or lower alkyl; R | 01/09/1996 |
| 5476521 | Branched amido-amine dispersant additives (PT-739) The present invention is directed to a fuel additive comprising at least one adduct of (A) a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.3 (e.g., from about 1 to 4) mono- or dicarboxylic acid producing moieties ... | 12/19/1995 |
| 5468262 | Thermal stability additives for jet fuels A liquid jet fuel composition comprising: (a) a major portion of a liquid fuel; and (b) a minor effective portion of a thermal stabilizing additive prepared by (i) reacting a polyamine, an aldehyde and a phenol containing active hydrogen to form a phenol - aldehyde... | 11/21/1995 |
