Quotables
"If you build a better mousetrap, you will catch better mice."
George Gobel
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5182247 | Sulfated catalyst for skeletal isomerization of olefins Normal olefins such as n-butene can be converted to branched species by skeletal isomerization over catalysts containing solid acids prepared by sulfating catalyst precursors containing hydrous metal oxides--e.g., aluminas, silica-aluminas or clays treate... | 01/26/1993 |
| 5182038 | Mannich base phenol coupled mono and/or bis-succinimide lubricating oil additives A lubricating oil composition having improved dispersancy and a low nitrogen content. The dispersant additive contained in the oil composition being prepared by first forming mono- and/or bis-alkenyl succinimides, with, respectively, an amidoamine, and a ... | 01/26/1993 |
| 5169822 | Catalysts for removal of impurities by the hydroprocessing of hydrocarbons A catalyt composition for removal of sulfur and nitrogen in the hydroprocessing refinery of hydrocarbon streams. The composition comprises supported molybdenum or tungsten and containing cobalt or nickel. In addition, the presence of a third metal selecte... | 12/08/1992 |
| 5167845 | Polymeric additives to enhance anti-wear, anti-oxidancy, and dispersancy in lubricants A polymeric lubricant additive that behaves as a viscosity index improver and imparts enhanced anti-oxidancy, dispersnacy, and anti-wear properties to said lubricant oil has been prepared. The polymeric substrate is a random co- or terpolyer of ethylene p... | 12/01/1992 |
| 5162086 | Dispersant additive and lubricating oil composition containing same An additive composition comprising a graft and amine-derivatized copolymer prepared from ethylene and at least one C3 to C10 alpha-monoolefin and, optionally, a polyene selected from non-conjugated dienes and trienes comprising from ... | 11/10/1992 |
| 5156757 | Acylated mannich thioalkylphenol mono and/or bis-succinimide lubricating oil additives A lubricating oil composition having improved dispersancy. The dispersant being prepared by coupling two mono- and/or bis-alkenyl succinimides with an aldehyde and thioalkylphenol. The resulting coupled succinimide is then an acylated with an acylating ag... | 10/20/1992 |
| 5152909 | Antioxidant/corrosion resistant additive for railway diesel crankcase lubricants A railway diesel crankcase lubricant composition comprising a major portion of a diesel lubricating oil and a minor amount of, as an oxidation and corrosion inhibiting additive, a condensate product prepared by the process comprising: (a) reacting a dibas... | 10/06/1992 |
| 5147569 | Lubricant additive to enhance anti-wear, anti-oxidancy, and dispersancy thereof A polymeric additive prepared from ethylene and at least one (C3 -C10) alpha-monoolefin and a non-conjugated dienes or triene comprising from about 15 to 80 mole percent of ethylene and from about 20 to 85 mole percent of the (C... | 09/15/1992 |
| 5147414 | Process for producing ORI control additives An improvement in a method of producing an ORI control additive which is the reaction product of a polybutenyl succinic anhydride and a polyoxyalkylene diamine, wherein the improvement comprises reacting solvent free the anhydride and diamine at an increa... | 09/15/1992 |
| 5147571 | Dispersant, VI improver, additive and lubricating oil composition containing same A lubricant additive prepared by the method comprising: (a) mixing a polmer consisting of a polymerized ethylene and at least one (C3 -C10) alpha-monolefin, with methyl acrylamido-glycolate methyl ether to form poly [(ethylene-c-alpha-mon... | 09/15/1992 |
| 5135996 | Process of making copolymers for viscosity index improvers A method of making a VI improver is disclosed. The one-step method of this invention includes reacting ethylene, an olefin other than ethylene and N-phenylphenylene methacrylamide in the presence of a cocatalyst system including a combination of a first g... | 08/04/1992 |
| 5135671 | Multifunctional viscosity index improver containing units from unsaturated chlorides and aromatic amines Multifunctional viscosity index improvers for lubricating oils containing olefin copolymers which have pendant groups derived from vinylbenzyl chloride and N-phenyl-p-phenylene diamine.... | 08/04/1992 |
| 5133781 | Compatibilization of asphaltenes in bituminous liquids using bulk phosphoalkoxylation A method of compatibilization asphaltenes containing bituminous liquids which process comprises: a) reacting an asphaltene with phosphorous trichloride in the presence of a liquid to form a phosphochlorinated asphaltene containing from about 0.01 wt % to ... | 07/28/1992 |
| 5132005 | Compatibilization of asphaltenes in bituminous liquids using bulk phosphoamination A method of compatibilization asphaltenes containing bituminous liquids which process comprises: a) reacting an asphaltene with phosphorous trichloride to form a phosphochlorinated asphaltene containing from about 0.01 wt % to about 20 wt % phosphorous; b... | 07/21/1992 |
| 5122161 | Diesel fuel comprising a glycolated Mannich coupled bis-succinimide detergent A diesel fuel composition comprising: (a) a major portion of a diesel fuel, and (b) a minor amount, as a diesel fuel injector detergent, of a glycolated Mannich coupled product of bis-polyisobutylene succinimide of a polyamine, prepared by: (i) reacting an alk... | 06/16/1992 |
| 5112509 | Non-dispersant, shear-stabilizing, and wear-inhibiting viscosity index improver A method of making a methyl methacrylate-lauryl methacrylate copolymer for use as a non-dispersant, shear stabilizing, wear inhibiting and VI-improving additive in hydraulic fluids and lubricating oils comprises: (a) first reacting a weight ratio of 10-20 part... | 05/12/1992 |
| 5110491 | Oligomeric lubricant additive designed to enhance antioxidancy and corrosion resistance in railway diesel crankcase lubricants A railway diesel crankcase lubricant composition comprising a major portion of a diesel lubricating oil and a minor amount of, as an oxidation and corrosion inhibiting agent, a condensate product prepared by the process comprising: (a) reacting a dibasic ... | 05/05/1992 |
| 5102570 | Acylated mannich base mono and/or bis-succinimide lubricating oil additives A lubricating oil composition having improved dispersancy and antioxidancy. The dispersant being prepared by coupling mono- and/or bis-alkenyl succinimides with an aldehyde and hydroxyaromatic amine. The resulting coupled succinimide is then acylated with... | 04/07/1992 |
| 5094766 | Dispersant-antioxidant viscosity index improver Dispersant and antioxidant viscosity index improvers for lubricating oils containing an EPR or EPT polymer onto which has been graft polymerized with vinyl azlactone and thereafter reacted with N-phenyl-p-phenylene diamine.... | 03/10/1992 |
| 5094765 | Lubricating oil composition A dispersant and viscosity index improver for lubricating oils containing an EPR or EPT polymer onto which has been free radically grafted an unsaturated urethane or unsaturated urea.... | 03/10/1992 |
| 5075361 | Aminoacid phosphoalkylation of asphaltenes for compatibilization in bituminous liquids Asphaltenes isolated from bituminous products that have been bulk phosphochlorinated using phosphorous trichloride and amidated using aminoacids or aminoacid salts show enhanced dissolution properties when added to bituminous liquids or bituminous liquids... | 12/24/1991 |
| 5066412 | Friction modifier additive and lubricating oil composition containing same A polymeric lubricating oil additive containing pendant perfluoroaliphatic ester groups that behave as a fuel economy enhancer when added to lubricating oil compositions. The additive is prepared by the process which comprises reacting a perfluoroaliphati... | 11/19/1991 |
| 5051503 | Polyglycol dicarboxylic acid amide lubricant and fuel additives A lubricant/fuel additive which is the reaction product of polyoxyalkylene dicarboxylic acids and hydrocarbyl-substituted mono- and bis-succinimides of polyamines.... | 09/24/1991 |
| 5039307 | Diesel fuel detergent additive A diesel fuel composition comprising: (a) a major portion of a diesel fuel, and (b) a minor amount, as a diesel fuel injector detergent additive, of a Mannich coupled product of bis-polyisobutylene succinimide of an amine, prepared by: (i) reacting an alkenyl ... | 08/13/1991 |
| 5035819 | Dispersant, VI improver, additive and lubricating oil composition containing same A lubricant additive that imparts enhanced dispersancy and antioxidancy has been prepared by reacting a copolymer or terpolymer with an acrylating agent followed by treatment with a dialiphatic or aromatic phosphate. The copolymer is prepared from ethylen... | 07/30/1991 |
| 5030249 | Gasoline detergent additive A gasoline composition comprising: (a) a major portion of a gasoline fuel, and (b) a minor amount, as a gasoline detergent additive, of a Mannich coupled product of bis-polyisobutylene succinimide of an amine, prepared by: (i) reacting an alkenyl succinimide acid a... | 07/09/1991 |
| 5021177 | Dispersant-antioxidant multifunctional viscosity index improver Dispersant viscosity index improvers for lubricating oils contain an EPR or EPT polymer onto which has been graft polymerized with isocyanatoethyl methacrylate and thereafter reacted with N-phenyl-p-phenylene diamine.... | 06/04/1991 |
| 5019287 | Enhanced wear resistant additive and lubrication oil composition containing same An additive composition containing pendant perfluoroaliphatic urethanes within a copolymer prepared from ethylene and propylene or an ethylene-propylene terpolymer containing non-conjugated diene or triene comprising from about 15 to 80 mole percent of et... | 05/28/1991 |
| 5013468 | Dispersant/antioxidant VII lubricant additive A dispersant/antioxidant bound VII polymethacrylate lubricant additive composition prepared by: (a) reacting a methacrylamide with an amino-alkyl, methacrylamide, an alkyl methacrylate and an oil solvent to provide a intermediate reaction mixture; (b) sti... | 05/07/1991 |
| 5013470 | Antioxidant VII lubricant additive An antioxidant bound VII polymethacrylate lubricant additive composition prepared by: (a) combining an antioxidant monomer (C1 -C20) alkyl monomers in an oil solvent to provide an intermediate reaction mixture; (b) stirring and purging th... | 05/07/1991 |
| 5011618 | Process for producing an overbased sulfonate An improvement is provided in a process for making a calcium sulfonate wherein a calcium base/calcium sulfonate mixture is mixed, stirred, reacted with CO2, and filtered to produce the sulfonate product. The improvement comprises stirring the c... | 04/30/1991 |
| 5000759 | Stable middle distillate fuel-oil compositions A stable middle distillate fuel-oil composition which comprises (a) a major portion of a middle distillate fuel-oil; and (b) a minor amount, as storage stabilizing additive, of a N-2-pyridyl succinimide of a copolymer and maleic anhydride graft.... | 03/19/1991 |
| 5001252 | Urea cosolvents for organic carbonate process An organic carbonate such as dimethyl carbonate is prepared by reacting an alcohol such as methanol with carbon monoxide and oxygen in the presence of a catalyst system containing Cu(OMe)Cl as catalyst and a urea or a mixture of ureas as a cosolvent for t... | 03/19/1991 |
| 4997455 | Diesel fuel injector cleaning additive A diesel fuel and injector cleaning additive which comprises a solvent such as a (C3 -C5) alcohol and an amino alkylene-substituted asparagine.... | 03/05/1991 |
| 4995993 | Process for preparing overbased metal sulfonates A method of preparing a amorphous metal sulfonate detergent for lubricants. The sulfonate detergent is prepared by: (a) mixing, stirring and heating a diluted metal sulfonate with Ca(OH)2 ; (b) adding to the stirred, heated sulfonate mixture a suffi... | 02/26/1991 |
| 4981604 | Oxidation and corrosion resistant diesel engine lubricant An oxidation and corrosion resistant diesel engine lubricant composition, particularly useful in marine and railway diesel engines, comprises a major amount of a base hydrocarbon lubricating oil and from 0.1-5.0 weight percent of a reaction product additi... | 01/01/1991 |
| 4973412 | Multifunctional lubricant additive with Viton seal capability A lubricating oil composition having improved antioxidancy, dispersancy and Viton seal compatibility. The antioxidant-dispersant being prepared by coupling partially acylated succinimides with an organic diacid, followed by further treatment with an unsat... | 11/27/1990 |
| 4973413 | Multifunctional viscosity index improver additive and lubricating oil composition containing same A polymeric lubricating oil additive containing pendant perfluoroaliphatic urethane units that behaves as a VI Improver and a fuel economy enhancer when added to lubricating oil compositions. The polymeric substrate may be a copolymer of 15-85 mole % ethy... | 11/27/1990 |
| 4965003 | Borated detergent additive by an improved process A process for preparing a borated, overbased metal detergent additive for lubricants which comprises dissolving a metal salt in a hydrocarbon solvent, adding a metal base and a polar solvent, treating with an acid gas, filtering the mixture to form a filt... | 10/23/1990 |
| 4965004 | Process for a borated detergent additive A process for preparing a borated, overbased metal detergent additive for lubricants which comprises borating an overbased metal salt in the presence of a protic solvent, distilling the borated metal salt mixture to remove protic solvent and water therefr... | 10/23/1990 |
