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| Number | Title | Issue Date |
| 4959127 | System for desalinization of saltwater A system for desalinating saltwater. The system includes a platform container and a plastic dome covering through which solar ray heat passes to distall the saltwater fed therein and thereby separate therefrom distilled fresh water.... | 09/25/1990 |
| 4906190 | Dental prosthesis A synthetic tooth for replacing an actual tooth by inserting a flexible crowned member into the socket of the removed tooth. The synthetic tooth is conformed to the tooth socket and filled to replace the actual tooth therein.... | 03/06/1990 |
| 4857661 | Bicyclic keto-acids preparation Alkyl substituted or unsubstituted, bicyclic keto acids may be prepared by cyclizing unsaturated, cyclic dicarboxylic acid anhydrides in the presence of a strong Bronsted acid catalyst. The products may be useful as corrosion inhibitors in alcohol fuels a... | 08/15/1989 |
| 4845157 | Diesel fuel compositions containing polyolefin graft polymers A diesel fuel of improved flow properties at low temperatures which contains a linear, substantially oil-soluble polymer having a carbon-carbon backbone bering a graft moiety derived from, as a graft monomer, an unsaturated-hydrocarbon ester of an (C... | 07/04/1989 |
| 4842086 | Electromagnetic levitation device for wheeled-vehicles This invention provides an electromagnetic device arranged to levitate and move a wheeled-vehicle over a waterless surface with a minimum energy expended. The electromagnetic device comprises: an endless belt which contacts the surface over which the vehi... | 06/27/1989 |
| 4836943 | Anti-oxidant system An oil containing a viscosity index improver of improved oxidative stability contains, as an anti-oxidant system 2,6-di-t-butylphenol and 1-3-aminopropyl-2-pipecoline.... | 06/06/1989 |
| 4834897 | Gear oil lubricant additive composition This invention provides a gear oil lubricant composition which comprises (a) a major portion of a gear lubricating oil, and (b) a minor amount of, as a friction modifying agent, a reaction product of hydrocarbon-substituted amine, a dibasic acid anhydride and a ... | 05/30/1989 |
| 4824869 | Base-modified metal oxide catalysts for the conversion of synthesis gas to alcohols A method for preparing a mixture of lower aliphatic alcohols from the reaction of carbon monoxide and hydrogen in the presence of an oxide-containing heavy metal catalyst under carbon monoxide-hydrogenation conditions in which said catalyst comprises an a... | 04/25/1989 |
| 4822825 | Base-modified zeolite-containing catalysts for the conversion of synthesis gas to alcohols A method for preparing a mixture of lower aliphatic alcohols from the reaction of carbon monoxide and hydrogen in the presence of a zeolite-containing heavy metal catalyst under carbon monoxide-hydrogenation conditions in which said catalysts comprises a ... | 04/18/1989 |
| 4816172 | Clear high-performance multifunction VI improvers This invention is a method of producing a clear, high-performance dispersant/antioxidant VII. The method comprising admixing a polar modifier to a VI improver during preparation process or to final product at a sufficiently high temperature to produce the... | 03/28/1989 |
| 4814492 | Method of preparing alkyl acrylates A method for producing alkyl acrylates by reacting ethylene, CO, O2 and an alkanol in the presence of a PdCl2 /CuCl2 catalyst to produce an alkyl propionate which is passed over a base-treated zeolite catalyst to produce t... | 03/21/1989 |
| 4808309 | Variable length membrane module This invention provides a variable length membrane module for separation of fluids in solution. The module comprises a series of hollow fiber membranes, a tubing surrounding the series of hollow membranes, an outer steel tube encasing the series of hollow... | 02/28/1989 |
| 4795577 | Lubricating oil containing dispersant viscosity index improver Lubricating oils of improved properties contain a terpolymer of isocyanatoethyl methacrylate, lauryl methacrylate, and stearyl methacrylate which has been coupled with phenothiazine and 3-dimethylaminopropylamine.... | 01/03/1989 |
| 4778480 | Color stabilization additives for diesel fuel containing rare earth metals and oxygenated compounds Diesel oil of improved color stability contains a phosphosulfurized polyisobutylene which is hydrolyzed and ethoxylated; a rare earth metal; and an oxygenated compound.... | 10/18/1988 |
| 4767553 | Lubricating oil containing dispersant viscosity index improver Lubricating oils of improved properties contain a terpolymer of maleic anhydride, lauryl methacrylate, and stearyl methacrylate which has been functionalized or coupled with phenothiazine and with N-methyl piperazine.... | 08/30/1988 |
| 4761467 | Pyridine ligands for preparation of organic carbonates 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 a catalyst and a pyridine compound as a ligand of the catalyst... | 08/02/1988 |
| 4737299 | Lubricating greases for high operating temperatures Lubricating greases suitable for use at high operating temperatures which contain a complex thickening system consisting of a lithium soap of a hydroxy fatty acid, an alkali salt of boric acid and a dilithium salt of a branched alkyl chain dicarboxylic ac... | 04/12/1988 |
| 4729978 | Catalyst for dehydration of lactic acid to acrylic acid A process for producing an acidic dehydration catalyst to convert lactic acid to acrylic acid. The process comprises impregnating an inert metal oxide carrier with a phosphate salt and buffering the impregnated carrier with a base to a pH sufficient to pr... | 03/08/1988 |
| 4720350 | Oxidation and corrosion inhibiting additives for railway diesel crankcase lubricants A railway diesel crankcase lubricating oil composition for railway diesel engines, containing a mineral lubricating oil, an overbased calcium alkylphenolate and an alkyaryl sulfonate oxidation and corrosion inhibiting amount of a reaction product of alpha... | 01/19/1988 |
| 4713191 | Diiscyanate acid lubricating oil dispersant and viton seal additives A lubricating oil composition having improved dispersancy. The dispersant being prepared by coupling partially glycolated succinimides with an organic diisocyanate.... | 12/15/1987 |
| 4713189 | Precoupled mono-succinimide lubricating oil dispersants and viton seal additives A lubricating oil composition having improved dispersancy and viton seal compatibility. The dispersant being prepared by coupling two polyethyleneamines with an aldehyde and a phenol, followed by conversion to a succinimide. The resulting coupled succinim... | 12/15/1987 |
| 4704217 | Gasoline crankcase lubricant The friction modifying property of gasoline crankcase oil is improved by the incorporation therein of a friction modifier of a dialkoxylated alkyl polyoxyalkyl amine ##STR1## wherein R is a (C1 -C20) hydrocarbyl radical, R' and ... | 11/03/1987 |
| 4699724 | Post-coupled mono-succinimide lubricating oil dispersant and viton seal additives A lubricating oil composition having improved dispersancy and viton seal compatibility. The dispersant being prepared by coupling two mono-alkenyl succinimides with an aldehyde and a phenol. The resulting coupled succinimide is then acylated with glycolic... | 10/13/1987 |
| 4699723 | Dispersant-antioxidant multifunction viscosity index improver A multi-function Viscosity Index Improver having properties, including dispersancy and antioxidation, which comprises a functional ethylene-propylene copolymer having a dispersant/antioxidant unit grafted thereon.... | 10/13/1987 |
| 4689051 | Storage-stabilizing additives for middle distillate fuels Diesel oil of improved storage stability contains a condensate of an alkyl polyoxyethylene polyoxypropylene amine, maleic anhydride and an N-alkyl alkylene diamine.... | 08/25/1987 |
| 4681694 | Marine crankcase lubricant A crankcase lubricating oil composition for slow speed marine diesel engines characterized by having a Total Base Number from about 3 to 10 containing a mineral lubricating oil, an overbased calcium alkylphenolate, a zinc dihydrocarbyl dithiophosphate, an... | 07/21/1987 |
| 4676917 | Railway diesel crankcase lubricant A crankcase lubricating oil composition for railway diesel engines, containing a mineral lubricating oil, an overbased calcium alkylphenolate and an alkyaryl sulfonate oxidation and corrosion inhibiting amount of a reaction product of polyoxyisopropylene ... | 06/30/1987 |
| 4663064 | Dibaisic acid lubricating oil dispersant and viton seal additives A lubricating oil composition having improved dispersancy and viton seal compatibility. The dispersant being prepared by coupling partially glycolated succinimides with an organic diacid.... | 05/05/1987 |
| 4647389 | Anti-friction additives for lubricating oils A lubricating oil composition containing a product prepared by reacting a natural oil with a (C2 -C10) hydroxy acid and a polyamine whereby the lubricating oil is improved in anti-friction and other properties.... | 03/03/1987 |
| 4643738 | Polyoxyisopropylenediamine-acid anhydride-n-alkyl-alkylene diamine reaction product and motor fuel composition containing same Gasoline of reduced combustion chamber deposit attained by addition of, as additive, a reaction product of polyoxyisopropylenediamine-maleic anhydride-N-tallow-1,3-propane diamine.... | 02/17/1987 |
| 4643737 | Polyol-acid anhydride-N-alkyl-alkylene diamine reaction product and motor fuel composition containing same Gasoline of reduced combusiton chamber deposits attained by addition of, as an additive, a reaction product of alpha-hydroxy omega hydroxy-poly (oxyethylene) poly (oxypropylene) poly (oxyethylene) block copolymer, maleic anhydride and N-tallow-1,3-propane... | 02/17/1987 |
| 4638076 | Phosphoramide additives for preparation of organic carbonates An organic carbonate such as dimethyl carbonate is prepared by reacting an alcohol such as methanol with carbon monoxide oxygen in the presence of a catalyst system containing Cu(OMe)Cl as a catalyst and a phosphoramide as an additive for the catalyst sys... | 01/20/1987 |
| 4636576 | Cyclic amide additives 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 cyclic amide as an additive or cosolvent for th... | 01/13/1987 |
| 4636322 | Lubricating oil dispersant and viton seal additives A lubricating oil composition having improved dispersancy and viton seal compatibility. the dispersant being prepared by coupling partly glycolated succinimides with an aldehyde and a phenol.... | 01/13/1987 |
| 4631069 | Anti-wear additives for alcohol fuels A novel fuel composition contains methanol or methanol/gasoline blends plus, as a wear-inhibiting additive, a reaction product of polyoxyisopropylenediamine, maleic anhydride and N-alkyl-1,3-propane diamine.... | 12/23/1986 |
| 4624682 | Motor fuel detergent additives A keto-acid amide derived from the amination of a bicyclic keto-acid with an N-alkyl-alkylene diamine. The keto-acid amides are useful as carburetor detergents for motor fuel compositions.... | 11/25/1986 |
| 4609377 | Aminated polyisopropoxylated polyethoxylated alkylphenol and ethanol/gasoline blend composition containing same A novel fuel composition contains ethanol or gasohol, and, as a wear-corrosion-inhibiting additive, an aminated polyisopropoxylated polyethoxylated alkylphenol ##STR1## wherein R is a (C5 -C30) alkyl, alkaryl, aralkyl, aryl, or ... | 09/02/1986 |
| 4608057 | Clear stable motor fuel composition A process for converting a hazy water saturated alcohol-gasoline blend into a clear, stable gasoline composition having an improved octane rating. The conversion is made by adding to and blending with the hazy gasoline, a nonionic surfactant of an alkanoi... | 08/26/1986 |
| 4581040 | Polyoxyisopropylenediamine-acid anhydride-polyamine reaction product and motor fuel composition containing same Gasoline of reduced combustion chamber deposit attained by addition of, as additive, a reaction product of polyoxyisopropylenediamine-polyalkylene polyamine-maleic anhydride.... | 04/08/1986 |
| 4575382 | Thermal stabilized vegetable oil extended diesel fuels A middle distillate fuel composition containing thermally-stabilized middle distillate containing a hydrocarbon boiling in the middle distillate boiling range, an extending vegetable oil and a thermal-stabilizing amount of a nitrogen-containing polymer pr... | 03/11/1986 |
