Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7148177 | Method for producing alkali metal catalyst and use thereof for the side-chain alklation of alkyl aromatics The invention relates to a process for the preparation of an alkali metal catalyst by mixing an alkali metal with pulverulent, solid potassium carbonate as support, wherein the potassium carbonate has a specific surface area of at least 0.3 m2/g, and to t... | 12/12/2006 |
| 7094724 | Catalytic solid supported on calcined hydrotalcite for olefinic polymerisation Catalyst solid for olefin polymerization comprising A) at least one calcined hydrotalcite and B) at least one organic transition metal compound, and also a catalyst system comprising the catalyst solid, the use of the catalyst sol... | 08/22/2006 |
| 7030285 | Alkylation process A side-chain of a substituted aromatic compound is alkylated by reacting the aromatic compound with an alkylating agent in the presence of a catalyst. The catalyst comprises a restructured smectite clay to which basic ions are incorporated by ion-exchange. The restr... | 04/18/2006 |
| 6984766 | Method for side-chain alkylation or alkenylation In a process for reducing the formation of polymers during side-chain alkylation or side-chain alkenylation of alkylaromatic compounds by reaction with olefins or diolefins in the presence of an alkali metal catalyst followed by distillation in order to isolate the ... | 01/10/2006 |
| 6414207 | Preparation of a basic catalyst avoiding high temperatures A catalyst comprising at least one alkali metal and at least one metallic or semimetallic promoter selected from the group consisting of Ca, Sr, Ba, Ag, Au, Zn, Cd, Hg, In, Tl, Sn, As, Sb and Bi, on a support which may be doped with one or more compounds ... | 07/02/2002 |
| 6403852 | Process for producing alkenyl-substituted aromatic hydrocarbons There are provided a process for producing an alkenyl-substituted aromatic hydrocarbon by alkenylation of an alkyl-substituted aromatic hydrocarbon having a hydrogen atom at the -position of a side chain thereof with a conjugated diene, using a cat... | 06/11/2002 |
| 6355603 | Thermal conversion products comprised of maleic anhydride and oligoalkenes, derivatives of the thermal conversion products with amines or alcohols and the use thereof Thermal reaction products of maleic anhydride and oligoalkenes are obtainable by oligomerization of linear C8 - to C12 -1-alkenes, preferably in the presence of a titanium, zirconium or hafnium metallocene catalyst and of an activato... | 03/12/2002 |
| 6100437 | Alkylation process of alkyl-benzene with olefin using a sodium-and-potassium catalyst An alkylbenzene is alkylated with an alkene, in the presence of a sodium/potassium alloy catalyst, on a saturated carbon atom which is alpha to the ring at temperatures which are lower than the temperatures used in a current commercial process. In a pre-a... | 08/08/2000 |
| 6037512 | Dismutation and/or transalkylation of alkylaromatic hydrocarbons using a mazzite type zeolite The invention concerns the use of a catalyst for the dismutation of alkylaromatic hydrocarbons, and preferably for the dismutation of toluene to produce benzene and xylenes, and/or for the transalkylation of alkylaromatic hydrocarbons, preferably for the ... | 03/14/2000 |
| 6024897 | Process for the preparation of benzyl-metal compounds and process for the preparation of 4-phenyl-1-butenes by the use of the same There is disclosed a method of preparing benzyl metal compounds represented by general formula (2), comprising reacting a phenyl metal compound represented by general formula (1) with toluene, in the presence of a catalytic amount of amine. According to t... | 02/15/2000 |
| 5977426 | Crystallization of 2,6-dimethylnaphthalene A method for recovering crystalline 2,6-dimethylnaphthalene comprising crystallizing in a scraped-wall crystallizer apparatus at crystallization temperature T, a mixture of low melting components, LM, having melting points of 70° F. and below, and high m... | 11/02/1999 |
| 5789639 | Process for manufacturing alkenyl compounds A process for manufacturing an alkenyl compound which comprises reacting an alkylbenzene and 1,3-butadiene in the presence of metallic sodium or a combination of metallic sodium and an oxide, a hydroxide, or a salt of potassium, rubidium or an alkaline ea... | 08/04/1998 |
| 5659097 | Process for producing a monoalkenyl aromatic hydrocarbon compound A process for producing a monoalkenyl aromatic hydrocarbon which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom at the -position of a side chain (such as o-xylene) with a conjugated diene h... | 08/19/1997 |
| 5625102 | Method of alkylating the side chain of alkyl-substituted aromatic hydrocarbons A method of alkylating the side chain of alkyl-substituted aromatic hydrocarbons. The method comprises the steps of thermally treating an alumina by calcining in air and then degassing under vacuum to prepare an alumina carrier, loading an alkali metal on... | 04/29/1997 |
| 5608132 | Method of alkylating the side chain of alkyl-substituted aromatic hydrocarbons A method of alkylating a side chain of alkyl-substituted aromatic hydrocarbons. The method involves the steps of loading an alkali metal on a thermally treated hydrotalcite carrier represented by formula (I) by an impregnation method using the alkali meta... | 03/04/1997 |
| 5527977 | Process for producing monoalkenyl aromatic hydrocarbon compound Their is disclosed a process for producing a monoalkenyl aromatic hydrocarbon compound (e.g. 5-(o-tolyl)-2-pentene) which comprises the steps of alkenylating a side chain of an aromatic hydrocarbon compound having at lease one hydrogen atom bonded to �... | 06/18/1996 |
| 5523504 | Process for manufacturing alkenyl aromatic compounds A process for manufacturing an alkenyl aromatic compound which is an industrially valuable compound as a raw material for the manufacture of naphthalenedicarboxylic acid, a highly useful raw material of polymers. The process comprises reacting an alkylben... | 06/04/1996 |
| 5510563 | Crystallizaiton of 2,6-dimethylnaphthalene A method for recovering crystalline 2,6-dimethylnaphthalene comprising crystallizing in a scraped-wall crystallizer apparatus at crystallization temperature T, a mixture of low melting components, LM, having melting points of 70° F. and below, and high m... | 04/23/1996 |
| 5488194 | Selective production of para-dialkyl substituted benzenes and catalyst therefor A process is provided for selective catalytic conversion of certain hydrocarbon feedstocks to product rich in para-dialkyl substituted benzenes. The catalyst required in the process comprises a crystalline material having the structure of PSH-3, MCM-22 or... | 01/30/1996 |
| 5475177 | Process for the synthesis of alkylated aromatic hydrocarbons Process for the synthesis of alkylated aromatic hydrocarbons containing a saturated alkyl chain comprising at least four carbon atoms, according to which an aromatic hydrocarbon substituted by a saturated short-chain alkyl group comprising one to three ca... | 12/12/1995 |
| 5475176 | Process for preparing vinyl-substituted aromatic compounds from arylamines The present invention relates to a process for preparing vinyl-substituted aromatic compounds of the formula (I) Ar--CH.dbd.CH2, where Ar is a phenyl group that may bear 1 to 5 substituents, naphthyl or anthryl or a naphthyl radical bearing 1 t... | 12/12/1995 |
| 5461180 | Catalytic norbornylation of aromatics A process is disclosed for the catalytic norbornylation of aromatics comprising the steps of contacting norborene and an aromatic hydrocarbon with a solid catalyst comprising a porous crystalline material having a Constraint Index of from about 0.1 to abo... | 10/24/1995 |
| 5444172 | Process for producing a monoalkenyl aromatic hydrocarbon compound There is disclosed a process for producing a monoalkenylbenzene which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at -position of the side chain (such as xylene) with a conjugated... | 08/22/1995 |
| 5436381 | Process for producing a monoalkenyl aromatic hydrocarbon compound There is disclosed a process for producing a monoalkenylbenzene which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at -position of the side chain (such as xylene) with a conjugated... | 07/25/1995 |
| 5436361 | Process for synthesizing enediynes A process for synthesizing enediynes is provided. Specifically, the formed enediynes contain a hex-3-ene-1,5-diynyl group. Production of the enediynes involves adding a base to a propargylic halide in the presence of a chelating agent, which causes a carb... | 07/25/1995 |
| 5414174 | Side-chain alkylation method There is disclosed a side-chain alkylation reaction wherein an alkyl aromatic compound having a benzyl hydrogen is reacted with unsaturated hydrocarbons to produce a desired target product with excellent selectivity. The reaction is conducted in the prese... | 05/09/1995 |
| 5367098 | Process for producing monoalkenyl armomatic hydrocarbon compound A process for producing a monoalkenyl aromatic hydrocarbon compound which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at an -position of the side chain (such as xylene) with a con... | 11/22/1994 |
| 5347062 | Process for preparing alkyl-substituted aromatic hydrocarbons An alkyl-substituted hydrocarbon is prepared by alkylating an aromatic hydrocarbon having at least one hydrogen atom at an alpha-position in a side chain with an olefin in the presence of a solid base which is obtainable by heating an alumina, an alkali m... | 09/13/1994 |
| 5344806 | Process for producing monoalkenyl aromatic hydrocarbon compound There is disclosed a process for producing a monoalkenyl aromatic hydrocarbon compound which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at -position of the side chain (such as xy... | 09/06/1994 |
| 5334796 | Alkylation of alkylaromatics promoted by amine compound An improved process for alkylating an alkylaromatic having at least one benzylic hydrogen atom with an olefinic compound comprising contacting the alkylaromatic under liquid phase conditions with an olefinic compound in the presence of at least one alkali... | 08/02/1994 |
| 5334794 | Process for producing monoalkenyl aromatic hydrocarbon compound A process for producing a monoalkenyl aromatic hydrocarbon compound which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at an -position of the side chain (such as xylene) with a con... | 08/02/1994 |
| 5329058 | Process for producing alkenylbenzene In a process for producing an alkenylbenzene by the reaction of an alkylbenzene having 8 or more carbon atoms and a conjugated diolefin, the improvement in which the reaction is performed in the presence of a catalyst obtained by dispersing (a) an alkali ... | 07/12/1994 |
| 5288936 | Process for the synthesis of alkylated aromatic hydrocarbons Process for the synthesis of aromatic alkylated hydrocarbons with a saturated alkyl chain including at least four carbon atoms, according to which an aromatic hydrocarbon, replaced by an alkyl group with a short saturated chain comprising one to three car... | 02/22/1994 |
| 5276227 | C2 -C5 olefin oligomer compositions as shear stable viscosity index improvers Liquid hydrocarbon lubricant viscosity index improver compositions are disclosed having high shear stability. The compositions comprise the homopolymer or copolymer product of the oligomerization of C3 to C5 alpha-olefin or mixtures ... | 01/04/1994 |
| 5243116 | Alkylation of aromatic compounds Alkylated benzenes such as ethylbenzene and cumene are produced by alkylation and/or transalkylation in the presence of an acidic mordenite zeolite catalyst having a silica/alumina molar ratio of at least 30:1 and a crystalline structure which is determin... | 09/07/1993 |
| 5227559 | Process for preparing alkyl-subtituted aromatic hydrocarbons An alkyl-substituted hydrocarbon is prepared by alkylating an aromatic hydrocarbon having at least one hydrogen atom at an alpha-position in a side chain with an olefin in the presence of a solid base which is obtainable by heating an alumina, an alkali m... | 07/13/1993 |
| 5227561 | Co-dimerization of vinyl aromatics with -monoolefins The invention concerns a process for the co-dimerization of a vinyl aromatic monomer (e.g. styrene) with an -monoolefin monomer (e.g. ethylene, propylene or 1-butylene), using a catalyst composition comprising palladium, an anion of a strong acid a... | 07/13/1993 |
| 5202515 | Process for preparing alkyl-substituted aromatic hydrocarbons An alkyl-substituted hydrocarbon is prepared by alkylating an alkyl aromatic hydrocarbon having at least one hydrogen atom at an alpha-position in a side chain with an olefin in the presence of a solid base which is obtainable by heating and reacting an a... | 04/13/1993 |
| 5198595 | Alkylation of aromatic compounds Monoalkylated benzene such as ethylbenzene and cumene or monoalkylated substituted benzene are produced by alkylation in the presence of an acidic mordenite zeolite catalyst having a silica/alumina molar ratio of at least 40:1, preferably 160:1. In a subs... | 03/30/1993 |
| 5198594 | Alkylation of alkylaromatics promoted by sonicated alkali metal An improved process for alkylating an alkylaromatic having at least one benzylic hydrogen atom with an olefinic compound comprising contacting the alkylaromatic under liquid phase conditions with an olefinic compound in the presence of at least one alkali... | 03/30/1993 |
