Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 6231662 | Surface treatments for titanium dioxide and other industrial pigments An additive for enhancing the performance of industrial pigments. The additive improves dispersibility and is the reaction product of an amine, a fatty amine, and a polybasic acid.... | 05/15/2001 |
| 6232518 | Removal of benzene from organic streams using cyclodextrins A method for separating benzene from a hydrocarbon mixture containing benzene and at least one other organic material is carried out by treating the hydrocarbon mixture with at least one cyclodextrin to form complexes of the cyclodextrin with at least a p... | 05/15/2001 |
| 6143205 | Mixtures containing monomers and stabilizers Mixtures contain (A) vinyl-containing monomers, and (B) an effective amount of a mixture inhibiting the premature polymerization of the vinyl-containing monomers during the purification or distillation and containing (i) from 0.05 to 4.5% by weight, based on t... | 11/07/2000 |
| 6126862 | Low dust balanced hardness antioxidant agglomerates and process for the production of same The present invention is directed to a process for the production of agglomerates of a blend of a sterically hindered phenol antioxidant and an acid neutralizer such that the agglomerates have a balanced hardness to resist abrasion during conveyance yet b... | 10/03/2000 |
| 6022488 | Heat transfer fluid containing 1,1-diphenyl ethane and diphenyl oxide A heat transfer fluid having high heat capacity, high thermal loading capacity, low viscosity and low freezing point includes diphenyl oxide and 1,1 diphenyl ethane in broad proportions.... | 02/08/2000 |
| 6004361 | Low emissions diesel fuel A low emission diesel fuel suitable for use in underground diesel-engined mining equipment comprises a straight run distillate fuel having an end point not greater than 300° C. (about 660° F.), a cetane number in the range of 55 to 60 a specific gravity... | 12/21/1999 |
| 6002056 | Colorless petroleum markers Petroleum products are marked with a marker such as thymolphthalein or cresolphthalein. When the marked petroleum products are contacted with a developing reagent, a color develops.... | 12/14/1999 |
| 5990327 | Use of aminotriarylmethanes for marking hydrocarbons and novel aminotriarylmethanes Use of aminotriarylmethanes of the formula ##STR1## where the ring A may be benzofused, and R1 and R2 are each substituted or unsubstituted C1 -C13 -alkyl or substituted or unsubstituted phenyl, or R1... | 11/23/1999 |
| 5976201 | Low emissions diesel fuel A low emission diesel fuel suitable for use in underground diesel-engined mining equipment comprises a straight run distillate fuel having an end point not greater than 300° C. (about 660° F.), a cetane number in the range of 55 to 60 a specific gravity... | 11/02/1999 |
| 5910469 | Crude oil composition comprising an alkylphosphonate antifouling additive Alkylphosphonate ester compounds or acids thereof are disclosed as effective fouling inhibitors in liquid hydrocarbonaceous medium undergoing processing at elevated temperatures.... | 06/08/1999 |
| 5886241 | Methods and compositions for inhibiting the polymerization of ethylenically unsaturated monomers The polymerization of an ethylenically unsaturated monomer such as isoprene, butadiene and acrylonitrile is inhibited during storage or handling thereof by the addition of a dihydroxycinnamic acid or derivative thereof.... | 03/23/1999 |
| 5869717 | Process for inhibiting the polymerization of vinyl aromatics Applicants have developed a process for inhibiting the polymerization of vinyl aromatic compound during the distillation of the vinyl aromatic compounds. The process involves adding to the vinyl aromatic compound, e.g., styrene, a nitroso compound such as... | 02/09/1999 |
| 5851272 | Non-oil organic spray wax compositions Automobile spray wax compositions incorporating an aromatic compound having at least one of two linear C8 -C20 alkyl substituents, and a preferred embodiment thereof including a compound identified and characterized by a CAS registry... | 12/22/1998 |
| 5841010 | Surface active agents as gas hydrate inhibitors This invention is directed toward a method for inhibiting the formation (nucleation, growth and agglomeration) of clathrate hydrates. The method comprises adding into a mixture comprising hydrate forming substituents and water, an effective amount of a hy... | 11/24/1998 |
| 5824829 | Hydrocarbon viscosity inhibitor and inhibiting method An inhibitor to suppress or inhibit the viscosity increase of a hydrocarbon, e.g. in a bottom section of an oil quench tower, featuring the use of a sulfonic acid and/or its salt as an effective inhibitor composition, which may optionally contain a polyme... | 10/20/1998 |
| 5773782 | Method and apparatus for the machining of metal by spark erosion A dielectric fluid for the machining of metal by spark erosion which contains saturated aliphatic hydrocarbons with a proportion of aromatic hydrocarbons which is lower than one percent in weight and to which an additive is added, wherein organic substanc... | 06/30/1998 |
| 5756430 | Mist oil lubricant Mist oil lubricants are disclosed based on polycarboxylic acid esters as the base oil which have added 1 to 5% of polyisobutylene Mn 400-2500 as stray mist suppressants.... | 05/26/1998 |
| 5756870 | Methods for inhibiting the polymerization of ethylenically unsaturated monomers The polymerization of an ethylenically unsaturated monomer such as isoprene and butadiene is inhibited during storage or handling thereof by the addition of a dihydroxycinnamic acid or derivative thereof.... | 05/26/1998 |
| 5744672 | Method for inhibiting the polymerization of vinyl aromatics A method for inhibiting the polymerization of vinyl aromatics such as styrene with a mixture of 3,5-di-tert-butyl-4-hydroxy-N,N-dimethylbenzyl amine and carboxylic acids or anhydrides thereof, in the presence of air or oxygen. The weight ratio of said ... | 04/28/1998 |
| 5659095 | Composition for inhibiting the polymerization of aromatic vinyl monomers A polymerization inhibitor composition for inhibiting the polymerization of aromatic vinyl monomers at elevated temperatures comprising: (a) a benzofuroxan derivative of the formula ##STR1## wherein R is C1 -C4 alkyl or alkoxy; R | 08/19/1997 |
| 5648574 | Compositions and methods for inhibiting vinyl aromatic monomer polymerization Compositions and methods for inhibiting the polymerization of vinyl aromatic monomers in oxygen-free processing systems are disclosed. The compositions comprise a hydroxylamine compound, a phenylenediamine compound and a vinyl aromatic monomer. The method... | 07/15/1997 |
| 5648572 | Compositions and methods for inhibiting vinyl aromatic monomer polymerization Compositions and methods for inhibiting vinyl aromatic monomer polymerization during processing are disclosed. The compositions comprise a dinitrosalicylic acid derivative and a hydroxylamine compound. The methods comprise adding the composition to the mo... | 07/15/1997 |
| 5645613 | Process for the production of hydrocarbons Several Fischer-Tropsch reaction schemes using a promoted iron catalyst in a slurry reactor produce oxygenated naphtha and diesel fractions on distillation that reduce particulate emissions in diesel engines. High carbon conversion efficiencies and optimu... | 07/08/1997 |
| 5621154 | Methods for reducing fouling deposit formation in jet engines Methods are provided for cleaning and inhibiting the formation of fouling deposits on jet engine components during the combustion of turbine combustion fuel oils. Methods are also provided for inhibiting the formation and emission of soot and smoke from j... | 04/15/1997 |
| 5616774 | Inhibition of unsaturated monomers with 7-aryl quinone methides Ethylenically unsaturated monomers are protected from premature polymerization during manufacture and storage by the incorporation therein of an effective stabilizing amount of a 7-aryl quinone methide compound.... | 04/01/1997 |
| 5614081 | Methods for inhibiting fouling in hydrocarbons Alkylphosphonate ester compounds or acids thereof are disclosed as effective fouling inhibitors in liquid hydrocarbonaceous medium undergoing processing at elevated temperatures.... | 03/25/1997 |
| 5612485 | High cis beta-carotene composition A carotenoid composition derived from a natural source wherein at least 50% by weight of the carotenoid content of the composition is cis beta-carotene and preferably 9 cis beta-carotene. Typically, the beta-carotene content of the composition is predomin... | 03/18/1997 |
| 5596130 | Methods and compositions for reducing fouling deposit formation in jet engines Methods and compositions are provided for cleaning and inhibiting the formation of fouling deposits on jet engine components during the combustion of turbine combustion fuel oils. Methods and compositions are also provided for inhibiting the formation and... | 01/21/1997 |
| 5510547 | Methods for inhibiting vinyl aromatic monomer polymerization Methods for inhibiting the polymerization of vinyl aromatic monomers in oxygen-free processing systems are disclosed. The methods comprise adding from 1 to 10,000 parts of a combination of a hydroxylamine compound and a phenylenediamine compound to the vi... | 04/23/1996 |
| 5498808 | Fluorescent petroleum markers Markers for petroleum products which can be detected upon addition of a developing reagent which provokes the marker to fluorescence.... | 03/12/1996 |
| 5489718 | Compositions and methods for inhibiting vinyl aromatic monomer polymerization Compositions and methods for inhibiting polymerization of vinyl aromatic monomers in oxygen-free processing systems are disclosed. The compositions comprise an oxime compound and a hydroxylamine compound and, alternatively, an oxime compound, a hydroxylam... | 02/06/1996 |
| 5488192 | Method for inhibiting the polymerization of styrene In the production of styrene, spontaneous polymerization of styrene monomer causes reduced efficiency and as such it is desirable to prevent the formation of polymer by the addition of inhibitors. A known inhibiting composition is 3,5-di-tert-butyl-4-hydr... | 01/30/1996 |
| 5460712 | Coker/visbreaker and ethylene furnace antifoulant A method of preventing fouling and coke formation on the high temperature sections of hydrocarbon processing equipment in contact with a hydrocarbon fluid which comprises adding to the hydrocarbon fluid prior to its contact with the high temperature secti... | 10/24/1995 |
| 5446220 | Methods for inhibiting vinyl aromatic monomer polymerization Methods for inhibiting the polymerization of vinyl aromatic monomers in oxygen-free processing systems are disclosed. These methods comprise adding from 1 to about 10,000 parts per million parts monomer of a combination of a dinitrophenol compound, a hydr... | 08/29/1995 |
| 5416258 | Methods for inhibiting ethylenically unsaturated monomers Methods and compositions are provided for inhibiting the polymerization of butadiene-containing streams during elevated temperature processing thereof or during storage or shipment of monomer containing product. The composition comprises a combination of ... | 05/16/1995 |
| 5396004 | Compositions and methods for inhibiting vinyl aromatic monomer polymerization Methods and compositions are provided for inhibiting the polymerization of vinyl aromatic monomers under distillation conditions. The compositions comprise a combination of a phenylenediamine compound and a hydroxylamine compound.... | 03/07/1995 |
| 5396005 | Compositions and methods for inhibiting polymerization of ethlenically unsaturated monomers Disclosed are compositions and methods for inhibiting polymerization of ethylenically unsaturated monomers. The compositions comprise a methoxyphenol compound selected from the group consisting eugenol and 2-tert-butyl-4-hydroxyanisole and a phenylenediam... | 03/07/1995 |
| 5366644 | Lubricant for fuel A new lubricant for addition to preferably two-cycle engine fuels is provided. The lubricant may be a solid lubricant in the form of a pellet having a diameter of at least 1 mm., which is readily dispersible when dropped into the fuel. Also, the lubricant... | 11/22/1994 |
| 5364994 | Lubricating compositions containing -olefin polymers The invention deals with viscosity improvers which are -olefin polymers and are particularly useful in lubricating compositions comprising (A) a liquid -olefin polymer having a number average molecular weight from about 2,000 to about 100,00... | 11/15/1994 |
| 5345030 | Inhibiting popcorn polymer formation with sulfur-containing compounds Inhibition of popcorn polymer growth by treatment with a sulfur-containing compound. The sulfur-containing compound can be added to organic material from which popcorn polymer is formed, or applied to extant popcorn polymer.... | 09/06/1994 |
