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| Number | Title | Issue Date |
| 4392870 | Vapor recovery unit performance test analyzer and method A system for measuring loss of hydrocarbons to the atmosphere during delivery to a tank truck wherein the improvement involves using an integrated electronic system for collection of analytical data.... | 07/12/1983 |
| 4300388 | Method for leakage measurement A method of high sensitivity for measuring leakage of liquid from a storage tank which comprises introducing a sensor into the liquid in the tank, the sensor being coupled to means for sensing displacement of mass, measuring the displacement over a known ... | 11/17/1981 |
| 4300015 | Crystalline alumino-silicate zeolites containing polyvalent metal cations A hydrocarbon conversion catalyst composition, useful for paraffin-olefin alkylation, can comprise a three dimensional crystalline zeolite molecular sieve having a pore size large enough to adsorb 2,2,3-trimethylpentane and having a composition expressed ... | 11/10/1981 |
| 4294742 | Plasticized vinyl resins containing a linear mono C12 alkyl diphenyl compound A process for plasticizing vinyl resins such as polyvinylchloride (PVC) wherein the plasticizer is a linear alkyl substituted biphenyl having from about six to about twelve carbon atoms in the alkyl group. The invention also embodies PVC containing the pl... | 10/13/1981 |
| 4286973 | Wet gas scrubbing of particulates A method for removing particulates from flue gases by water scrubbing wherein the gases are contacted with a multiplicity of water sprays in a duct leading to cyclone separators and the gases are further sprayed with water within the cyclones, the cyclone... | 09/01/1981 |
| 4287074 | Sec-ylbiphenyl composition and process for preparing the same A water-white, essentially odorless liquid useful as a dieletric oil and as a dye solvent, particularly for a carbonless paper solvent, consisting essentially of about 82% to about 88% by weight of mono-sec-butylbiphenyl and about 12% to about 18% of di-s... | 09/01/1981 |
| 4281534 | Sensor for measuring leakage A sensor for measuring leakage from a liquid containing tank comprises a main body portion suspended from a balance arm or other mass displacement detector and has a liquid holding portion in the main body. The cross-sectional area of the liquid holding p... | 08/04/1981 |
| 4247721 | Process for purification of p-isopropyl phenol A process for purifying p-isopropyl phenol (PIPP) by distilling the impure phenol at a pot temperature below about 475° F. under sufficient vacuum to permit separation of a heart cut, and washing the separated heart cut with liquid hydrocarbon containing... | 01/27/1981 |
| 4242529 | Hydrogenolysis of 2,5-norbornadiene saturated endo-endo hexacyclic dimer Hydrogenolysis of a saturated endo-endo dihydronorbornadiene hexacyclic dimer involves the use of a catalytic amount of a Group VIII metal and the presence of hydrogen. The resulting pentacyclic isomers can be used as a diluent for depressing the freezing... | 12/30/1980 |
| 4225736 | Codimer of norbornadiene and cyclohexadiene Novel codimer (I) of norbornadiene and 1,3-cyclohexadiene and its hydrogenated derivative (II), having the following structures: ##STR1## and processes for preparing both are disclosed. Product (II) can be used as a high energy fuel. Process for codi... | 09/30/1980 |
| 4210487 | Process for making synthetic paper pulp Synthetic thermoplastic polymer fibers are prepared by extruding a foamed fibrillated sheet of a normally solid synthetic thermoplastic polymer, attenuating the molten foamed sheet as it is extruded and applying either a cutting and/or a shearing action t... | 07/01/1980 |
| 4203930 | Codimer of norbornadiene and cyclohexadiene Novel codimer (I) of norbornadiene and 1,3-cyclohexadiene and its hydrogenated derivative (II), having the following structures: ##STR1## and processes for preparing both are disclosed. Product (II) can be used as a high energy fuel. Process for codi... | 05/20/1980 |
| 4201731 | Catalytic codimerization of norbornadiene with pentadiene Norbornadiene and 1,3-pentadiene are catalytically codimerized to an olefinic codimer using a three-component homogeneous catalytic system of cobaltic or cobaltous acetylacetonate, triphenylphosphine and an alkyl aluminum chloride. The codimer, after hydr... | 05/06/1980 |
| 4190610 | Catalytic codimerization of norbornadiene with pentadiene Catalytic codimerization of norbornadiene and 1,3-pentadiene yields an olefinic codimer which, after hydrogenation, has utility as a high energy missile fuel or a diluent for a higher viscous missile fuel. Used is a three-component homogeneous catalytic s... | 02/26/1980 |
| 4190611 | Catalytic codimerization of norbornadiene with norbornene Norbornadiene and nobornene are catalytically codimerized to the saturated exo-exo hexacyclic dimer of norbornadiene. Used is a three-component homogeneous catalytic system consisting of cobaltic or cobaltous acetylacetonate, 1,2-bisdiphenylphosphino etha... | 02/26/1980 |
| 4167504 | PVC plasticized with monocyclohexylbiphenyl In the process of plasticizing polyvinylchloride with an alkyl biphenyl plasticizer, the improvement which comprises using as plasticizer a composition, preferably obtained by alkylation of biphenyl with cyclohexene, and containing at least about 85% of m... | 09/11/1979 |
| 4165346 | Copolymer of poly(4,7-dioxadecamethylene adipamide)-polycaprolactam containing terephthalic acid Fibers of block copolymer of poly (4,7-dioxadecamethylene adipamide) - polycaprolactam, i.e. N-30203-6//6, have a tendency to fuse when scoured in boiling water. By replacing a minor amount of the adipic acid present in the N-30203-6 portion of the block ... | 08/21/1979 |
| 4142055 | Catalytic codimerization of norbornadiene with an acrylic acid ester Norbornadiene and an acrylic acid ester, e.g., methyl acrylate, are catalytically codimerized in the presence of a two-component homogeneous catalytic system consisting of nickel acetylacetonate and an alkyl aluminum chloride. The resulting codimer can be... | 02/27/1979 |
| 4139715 | Catalytic codimerization of norbornadiene with an acrylic acid ester Norbornadiene and an acrylic acid ester, e.g. methyl acrylate, are catalytically codimerized in the presence of a three-component homogeneous catalytic system consisting of nickel acetylacetonate, an alkyl aluminum chloride and 1,2-bisdiphenylphosphino et... | 02/13/1979 |
| 4139714 | Catalytic codimerization of norbornadiene with an acrylic acid ester Norbornadiene and an acrylic acid ester, e.g. methyl acrylate, are catalytically codimerized in the presence of a three-component homogeneous catalytic system consisting of nickel acetylacetonate, an alkyl aluminum chloride and triphenylphosphine. The res... | 02/13/1979 |
| 4132645 | Two-stage oil skimmer separator A two stage oil skimmer separator for separating a hydrocarbon, such as oil or wax, from the water in a hydrocarbon-water mixture which is of particular utility for the output from an oil refinery storm sewer system. The first stage of the separator inclu... | 01/02/1979 |
| 4132591 | Molding processes for making multilayer containers of different materials An improved method of pulp or pressure molding a multilayer container is disclosed wherein the inner layer consists of fused water dispersible polyolefin fibers whereas the outer layer consists of a mixture of cellulosic fibers bonded together by fused wa... | 01/02/1979 |
| 4131514 | Oxygen separation with membranes A process for separating oxygen from its admixture with other gases (e.g. air) by contacting one side of a solid electrolyte membrane in which ionic oxygen transport can occur with the oxygen-containing gas and separating essentially pure oxygen from the ... | 12/26/1978 |
| 4131215 | Dispenser with additive option A system for dispensing gasoline and having an option which, if selected by the customer, automatically dispenses an additive with the gasoline and computes the price of the additive into the sale.... | 12/26/1978 |
| 4121635 | Interlock system for a gasoline dispensing nozzle A gasoline dispensing nozzle having a system for receiving vapors displaced from a motor vehicle gasoline tank being filled, and an interlock system for both preventing the dispensing of gasoline and closing the vapor receiving system until the discharge ... | 10/24/1978 |
| 4110215 | Liquid level control system for separation tank An automatic liquid level control system for separation tanks which are used to clean waste water. The automatic level control system includes an external stilling well mounted on the side of the separation tank and having a liquid level sensing means whi... | 08/29/1978 |
| 4107198 | Catalytic codimerization of norbornadiene with acrylonitrile Norbornadiene and acrylonitrile are catalytically codimerized in the presence of a three-component homogeneous catalytic system consisting of nickel acetylacetonate, triphenylphosphine and an alkyl aluminum chloride. The codimer can be used as a precursor... | 08/15/1978 |
| 4103705 | Pressure stabilizer device A pressure stabilizer device designed to be placed on the vent line of underground gasoline storage tanks in a service station. The pressure stabilizer is designed to allow inbreathing in the event a vacuum develops in the underground storage system or ou... | 08/01/1978 |
| 4100338 | Process for preparing solid polymers of norbornadiene Norbornadiene is catalytically polymerized to a solid white polymer in the presence of a catalytic system of nickel acetylacetonate or a nickel-phosphine complex and an alkyl aluminum chloride. The polymer can be used as a solid high energy fuel.... | 07/11/1978 |
| 4100056 | Manufacture of naphthenic type lubricating oils A process for making naphthenic type lubricating oils from a low VI waxy crude which comprises distilling said low VI waxy crude to 500° to 650° F at atmospheric pressure to separate distillable fractions therefrom, subjecting the residue to a vacuum di... | 07/11/1978 |
| 4100216 | Preparation of beta-methyltetramethylene nortricyclane Norbornadiene and isoprene are catalytically codimerized to an olefinic codimer. Used is a three-component homogeneous catalytic system consisting of cobaltic or cobaltous acetylacetonate, 1,2-bisdiphenylphosphino ethane and an alkyl aluminum chloride. Th... | 07/11/1978 |
| 4098835 | Vinyl nortricyclane Processes for preparing vinyl nortricyclane (I) and its hydrogenated derivative, ethyl nortricyclane (II) are disclosed. The nortricyclane (II) can be used as a high energy fuel or a fuel diluent. Process involves codimerization of norbornadiene and ethyl... | 07/04/1978 |
| 4086289 | Manufacture of xylenes In the process of methylating toluene to obtain a mixture of xylenes by contacting toluene with hydrogen and a carbon oxide-containing gas in the presence of a catalyst, the improvement of using as catalyst zinc chromite mixed with an alkali metal exchang... | 04/25/1978 |
| 4073819 | 2,6-Dimethylnaphthalene extraction process Extraction of 2,6-dimethylnaphthalene from isomeric mixtures containing the same by clathrate complex formation with m-nitrobenzoic acid may be significantly increased by first purifying the m-nitrobenzoic acid before forming the clathrate.... | 02/14/1978 |
| 4069838 | Fiber optic liquid level sensor A liquid level sensor for use when filling containers with hydrocarbons or other liquids is disclosed. A fiber optic bundle is arranged to form a flow path for a light beam in such a manner that the flow path is interrupted when the liquid level reaches a... | 01/24/1978 |
| 4069248 | Hydrolysis of aromatic nitriles to carboxylic acids In the non-catalytic hydrolysis to equilibrium of an aromatic nitrile, the improvement of carrying out such hydrolysis in the presence of a neutral salt whereby nitrogen impurities in the acid product are reduced.... | 01/17/1978 |
| 4064889 | Break-away safety valve A safety arrangement for a gasoline dispensing station equipped with a vapor recovery system. Gasoline vapors displaced from a motor vehicle fuel tank during filling are collected through the dispensing nozzle, and are directed first through a flexible ho... | 12/27/1977 |
| 4064068 | Preparation of isopropylnaphthalene mixture A process for the preparation of a mixture of alkylnaphthalenes useful as a dye solvent for carbonless copy paper by: 1. alkylating naphthalene in the presence of an alkylation catalyst, 2. adding an additional amount of catalyst after the alkylation has been ... | 12/20/1977 |
| 4058149 | Attitude valve for a gasoline dispensing nozzle with a vapor receiving system A dispensing nozzle assembly having a system for receiving the vapors displaced from a motor vehicle gasoline tank when it is being filled, an interlock system for preventing the dispensing of gasoline until the vapor receiving bellows is in contact with ... | 11/15/1977 |
| 4047548 | Vapor recovery system with safety valve A safety arrangement for a gasoline dispensing station equipped with a vapor recovery system. Gasoline vapors displaced from a motor vehicle fuel tank during filling are collected through the dispensing nozzle, and are directed first through a flexible ho... | 09/13/1977 |
