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| Number | Title | Issue Date |
| 8168842 | Process for the alkylation of a cycloalkene Process for the alkylation of a cycloalkene, which process comprises alkylating a cycloalkene with an oxygenate under alkylating conditions in the presence of a zeolite; to yield an alkylated cycloalkene. Composition obtainable by such a process and use of such a co... | 05/01/2012 |
| 7834228 | Synthesis of mono-substituted cyclopentadienes Synthesis of mono-substituted alkylcyclopentadienes by mixing alkyl iodides with cyclopentadienyl magnesium chloride in tetrahydrofuran is described. ... | 11/16/2010 |
| 7294420 | Production of hydrogen A method of producing hydrogen for a fuel cell from a hydrocarbon fuel composition, by providing a hydrocarbon fuel composition, which is obtained by contacting a liquid hydrocarbon feed comprising an alkylating agent with an acidic catalyst, under conditions effect... | 11/13/2007 |
| 7151199 | Hydrocarbon conversion processes using non-zeolitic molecular sieve catalysts Hydrocarbon or oxygenate conversion process in which a feedstock is contacted with a non zeolitic molecular sieve which has been treated to remove most, if not all, of the halogen contained in the catalyst. The halogen may be removed by one of several methods. One m... | 12/19/2006 |
| 7078130 | Metallic mesoporous transition metal oxide molecular sieves, room temperature activation of dinitrogen and ammonia production This invention provides novel stable metallic mesoporous transition metal oxide molecular sieves and methods for their production. The sieves have high electrical conductivity and may be used as solid electrolyte devices, e.g., in fuel cells, as sorbents, e.g. for h... | 07/18/2006 |
| 7074865 | Azaborolyl group 4 metal complexes, catalysts and olefin polymerization process Metal complexes, catalysts derived therefrom, and polymerization processes using the same, characterized by the presence of one or more nitrogen and boron containing, anionic 5-membered cyclic ligand groups, especially 1,2-azaborolyl groups, are disclosed. ... | 07/11/2006 |
| 6984764 | Alkylaromatics production The present invention provides a process for producing a monoalkylated aromatic compound, particularly ethylbenzene or cumene, in which a polyalkylated aromatic compound is contacted with an alkylatable aromatic compound in the liquid phase and in the presence of a ... | 01/10/2006 |
| 6420305 | Solid acid catalyst, method for producing the same and reaction method using the same A method for producting a solid acid catalyst is provided which produces a shaped material of a solid acid catalyst containing a sulfureous component but have a high activity and having a practically sufficient handleability and mechanical strength involv... | 07/16/2002 |
| 6232516 | Process for cyclopentadiene substitution The process for the preparation of a selectively substituted cyclopentadiene compound which includes reacting a halide of a substituting compound in a mixture of the cyclopentadiene compound and an aqueous solution of a base in the presence of a phase tra... | 05/15/2001 |
| 6175027 | Synthesis of bis (alkyl cyclopentadienyl) metallocenes A method for producing an alkyl cyclopentadiene by reacting cyclopentadienyl Grignard with an alkyl halide and for converting the alkyl cyclopentadiene to a bis(n-alkyl cyclopentadienyl) Group IV metal dihalide is described.... | 01/16/2001 |
| 6063948 | Process for cyclopentadiene substitution with groups differing from each other Polysubstituted cyclopentadiene compound wherein at least two different substituents are present from the group consisting of linear, branched and cyclic alkyls, aralkyls and alkenyls, and a process for the preparation of a cyclopentadiene compound substi... | 05/16/2000 |
| 5877371 | Heterogeneous Lewis acid-type catalysts A solid state insoluble salt catalyst system for the carbocationic polymerization of olefin monomer in the presence of a polar or non-polar reaction medium, which comprises (a) solid state catalyst component comprising at least one salt of a strong acid a... | 03/02/1999 |
| 5733439 | Hydrocarbon conversion processes using substituted fluoride smectite clays Hydrocarbon conversion processes, e.g., alkylation, are disclosed and claimed which use as the catalyst novel fluoride containing substituted smectite clays. The clay has the formula Ax (My M'4-y)(Si8-x Mt... | 03/31/1998 |
| 5670683 | Racemic metallocene complexes and their preparation Cyclopentadineyl compounds of the formula II ##STR1## and formula III ##STR2## their preparation and their use as intermediates in the preparation of metallocene complexes of the formula I.... | 09/23/1997 |
| 5578741 | Process for preparing cyclopentadienyl-type ligands In accordance with the present invention there is provided a cyclopentadienyl-type ligand represented by the formula ZA, wherein Z is a cyclopentadienyl-type group, wherein A is --YPR2, --YNR2, or --NR2, wherein Y is an al... | 11/26/1996 |
| 5545785 | Process for preparing biscyclopentadienyl compounds The invention relates to a process for preparing biscyclopentadienyl compounds of the general formula (CpRa)2 --Q by reaction of CpRa, in a first step, in accordance with the general equation 2CpRa +(R3 R | 08/13/1996 |
| 5541351 | Cyclopentadiene type compounds and method for making Processes are disclosed for preparing compounds of the formula Z--R--Z where each Z can be selected from cyclopentadienyl type radicals such as substituted or unsubstituted cyclopentadienyl, indenyl, fluorenyl or tetrahydroindenyl or where one Z is Cl, Br... | 07/30/1996 |
| 5516953 | Process for the preparation of optically active cycloolefins A process for the preparation of optically active cycloolefins based upon reaction of optically active dienes in the presence of catalyst compositions comprising molybdenum and tungsten complexes.... | 05/14/1996 |
| 5510549 | Fiber optic cable and viscous filler material The invention provides a fiber optic cable and a diamondoid-based viscous filling material for a fiber optic cable.... | 04/23/1996 |
| 5449847 | Selective conversion of benzene to tercyclohexane There is provided a process for preparing tercyclohexane by reacting benzene with hydrogen. The process involves the use of a catalyst comprising an acidic solid and a hydrogenation component. The acidic solid may comprise a Group IVB metal oxide, such as... | 09/12/1995 |
| 5420320 | Method for preparing cyclopentadienyl-type ligands and metallocene compounds In accordance with the present invention there is provided a process for preparing a cyclopentadienyl-type ligand, the process comprises (1) reacting an alkali metal salt of a cyclopentadienyl-type compound and an aminofulvene compound to form a monoanion... | 05/30/1995 |
| 5409597 | Hydrocarbon conversion process using a pillared clay containing fluorided pillars Hydrocarbon conversion processes are disclosed which are catalyzed by novel pillared clay compositions. The clay contains pillars which are at least partially fluorided. These pillars are metal fluoro hydroxy cations where the metal can be Al, Zr, Si/Al, ... | 04/25/1995 |
| 5406013 | Cyclopentadiene type compounds and method for making Processes are disclosed for preparing compounds of the formula Z--R--Z where each Z can be selected from cyclopentadienyl type radicals such as substituted or unsubstituted cyclopentadienyl, indenyl, fluorenyl or tetrahydroindenyl or where one Z is Cl, Br... | 04/11/1995 |
| 5393911 | Cyclopentadiene type compounds and method for making New fluorenyl silane compounds and method for their production are disclosed. The fluorenyl compounds have the formula ##STR1## wherein Z is a substituted or unsubstituted fluorenyl radical and Z' is a substituted or unsubstituted cyclopentadienyl-ty... | 02/28/1995 |
| 5369213 | Oxidative coupling of diamondoids and aromatics The present invention provides a method for arylating a diamondoid compound having at least one unsubstituted bridgehead carbon with an aromatic compound having at least one unsubstituted ring-member carbon comprising reacting said diamondoid compound wit... | 11/29/1994 |
| 5367097 | Lubricant composition and method for increasing diamondoid incorporation in polyalphaolefin-containing lubricant This invention provides a method for incorporating a diamondoid compound into a lubricant stock comprising reacting at least one -olefin containing at least six carbon atoms with at least one diamondoid compound in the presence of an acid catalyst ... | 11/22/1994 |
| 5349100 | Chiral metallocene compounds and preparation thereof by creation of a chiral center by enantioselective hydride transfer There are provided enantiomerically enhanced chiral substituted cyclopentadienyl ligands, and compounds thereof, and a process for their making comprising contacting an optionally substituted fulvene having a prochiral carbon 6 with a lithium salt of an a... | 09/20/1994 |
| 5347063 | Method for direct arylation of diamondoids The present invention provides a method for arylating a non-halogenated diamondoid compound comprising the steps of: (a) providing a non-halogenated diamondoid compound or mixture of non-halogenated diamondoid compounds and an aromatic compound or mixture ... | 09/13/1994 |
| 5345020 | Method for making diamondoid lubricant base stock by alkylation with an olefin in the presence of a Lewis acid The invention provides a method for selectively alkylating a diamondoid compound comprising reacting at least one -olefin containing at least six carbon atoms with at least one diamondoid compound in the presence of an acid catalyst selected from t... | 09/06/1994 |
| 5254791 | Cycloalkane isomerization process C5 -C10 cycloalkanes (preferably methylcyclopentane) are isomerized in the presence of a catalyst comprising aluminum chloride and at least one of the following materials: boron phosphate on silica, boron phosphate on activated carbo... | 10/19/1993 |
| 5210351 | Preparation of alkylated cyclopentadienes Cyclopentadienes are alkylated by initially reacting primary or secondary alcohols at elevated temperatures in the presence of an alkali metal hydroxide with removal of water to form dimers of said primary or secondary alcohols, and thereafter reacting sa... | 05/11/1993 |
| 5210352 | Fluorene compounds New fluorene derivatives and new methods for forming fluorene derivatives are disclosed. Examples include processes for preparing tert-butyl substituted fluorenes, 1-methyl fluorene, and 4-methyl fluorene.... | 05/11/1993 |
| 5208357 | Chiral metallocene compounds and preparation thereof by attachment of chiral center There are provided enantiomerically enhanced chiral substituted cyclopentadienyl ligands and compounds thereof, and a process for their making comprising contacting a substituted fulvene or derivative thereof with an enantiomerically enhanced or pure nucl... | 05/04/1993 |
| 5191132 | Cyclopentadiene type compounds and method for making Processes are disclosed for preparing compounds of the formula Z--R--Z where each Z can be selected from cyclopentadienyl type radicals such as substituted or unsubstituted cyclopentadienyl, indenyl, fluorenyl or tetrahydroindenyl or where one Z is Cl, Br... | 03/02/1993 |
| 5144095 | Substituted cyclopentadienes, methods of manufacture and uses Tertiary alkyl substituted cyclopentadienes are prepared by reaction of cyclopentadiene with a stoichiometric excess of a tertiary alkyl halide under phase transfer conditions. The tertiary-alkyl substituted cyclopentadienes are useful as synthetic lubric... | 09/01/1992 |
| 5043503 | Production of lubricant stocks from polycyclic paraffins Alkylated polycycloparaffinic compounds useful as lubricating stocks are prepared by alkylating a polycycloparaffinic compound with an alkylating agent under alkylation reaction conditions in the presence of a zeolite catalyst. Useful zeolites include zeo... | 08/27/1991 |
| 5012022 | Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes and synthetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structu... | 04/30/1991 |
| 5012023 | Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes are synthetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structu... | 04/30/1991 |
| 4929800 | Hydrocarbon conversion and polymerization catalyst and method of making and using same Hydrocarbon conversion processes are disclosed using a catalyst prepared by a method comprising reacting an adsorbent containing surface hydroxyl groups with a Lewis acid in a halogenated organic solvent.... | 05/29/1990 |
| 4929782 | Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes are synthetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structu... | 05/29/1990 |
