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| Number | Title | Issue Date |
| 7439378 | Fulvene, metallocene catalysts and preparation method thereof, and preparation of polyolefines copolymer using the same The present invention relates to a novel fulvene compound and a preparation method thereof, and more particularly to a fulvene compound having substituted groups in the 2- and 5-positions, prepared from an unsaturated ketone having a substituted group in the β-posi... | 10/21/2008 |
| 7271277 | Fulvene, metallocene catalysts and preparation method thereof, and preparation of polyolefines copolymer using the same The present invention relates to a novel fulvene compound and a preparation method thereof, and more particularly to a fulvene compound having substituted groups in the 2- and 5-positions, prepared from an unsaturated ketone having a substituted group in the β-posi... | 09/18/2007 |
| 7244522 | Lubricant for magnetic recording medium and use thereof A magnetic recording medium and method for forming the magnetic recording medium are described. The magnetic recording medium includes a magnetic layer formed on a non-magnetic support, and a lubricant layer over the magnetic layer. The lubricant layer includes a co... | 07/17/2007 |
| 7195828 | Lubricant for magnetic recording medium and use thereof A magnetic recording medium and method for forming the magnetic recording medium are described. The magnetic recording medium includes a magnetic layer formed on a non-magnetic support, and a lubricant layer over the magnetic layer. The lubricant layer includes a co... | 03/27/2007 |
| 7175754 | Process for the production of low benzene gasoline A process for the production of low benzene content gasoline is disclosed wherein a full boiling range naphtha is fractionated to produce a light naphtha, a medium naphtha and a heavy naphtha. The benzene is contained in the medium naphtha and this stream is subject... | 02/13/2007 |
| 7166731 | Method of preparing fulvene compounds and method of preparing ansa-metallocene compounds using the compounds There are provided a method of simply preparing a 1,4,6-substituted, 1,4-substituted, 1,6-substituted, or 1-substituted fulvene compound, the intermediates of the fulvene compound, and a method of preparing an ansa-metallocene compound in which two cyclopentadienyl ... | 01/23/2007 |
| 7141631 | Non-conjugated cyclic diene, non-conjugated cyclic diene composition and method of producing polymer based on non-conjugated cyclic diene It is an object of the present invention to provide a non-conjugated cyclic diene and a non-conjugated cyclic diene composition which enable the production of a polymer based on non-conjugated cyclic diene which makes it possible to produce a (co)polymer at a high d... | 11/28/2006 |
| 7119238 | Process for purification and crystallization of palm oil carotenoids Disclosed is a process for purification of a mixture of carotenoids from palm oil concentrate to produce a crystalline mixture of a α-carotene, β-carotene, γ-carotene, and ε,ε-carotene as well as a product enriched in geometrical isomers of a β-carotene (9-cis... | 10/10/2006 |
| 7034095 | Bicyclic conjugated diene polymer and bicyclic conjugated diene copolymer A bicyclic conjugated diene polymer obtained by polymerizing a monomer (M) comprising at least one kind of bicyclic conjugated diene monomer represented by formula (I), and a bicyclic conjugated diene copolymer obtained by copolymerizing monomer (M) with at least on... | 04/25/2006 |
| 6770618 | (1S,6R)-2,2,6-Trimethylcyclohexyl methyl ketone and/or (1R,6S)-2,2,6-trimethylcyclohexyl methyl ketone, process for producing the same, and perfume composition containing the same Trans-2,2,6-trimethylcyclohexyl methyl ketone, including (1S,6R)-2,2,6-trimethylcyclohexyl methyl ketone represented by the formula (1a): and (1R,6S)-2,2,6-trimethylcyclohexyl methyl ketone represented by the formula (1b... | 08/03/2004 |
| 6512152 | Tetracyclododecene compositions and process for producing the same The present invention is drawn to a tetracyclododecene composition having a regulated cyclopentadiene trimer content, whereby addition polymerization with the aid of a Ziegler catalyst can be carried out while preventing gelation caused by a cross-linking... | 01/28/2003 |
| 6482966 | Crosslink-cyclized cyclopentadiene and dihalobis type metal compound containing same as ligand A process for producing a crosslink-cyclized cyclopentadiene, comprising the steps of reacting a cyclopentenone with an alkali metal hydride to thereby reduce the cyclopentenone (reduction step A) into a cyclopentenol; and reacting the cyclopentenol with ... | 11/19/2002 |
| 6417418 | Bridged metallocene complex for the (co)polymerization of olefins A "bridged" bis-cyclopentadienyl complex which can be advantageously used for the formation of a catalytic system active in the (co)polymerization of ethylene and other -olefins is represented by means of the following formula (II): ##STR1## w... | 07/09/2002 |
| 6388118 | Process for the preparation of cyclopentadienyl compounds and compounds obtained therefrom A process is disclosed for preparing bis-cyclopentadienyl compounds bridged by a single carbon atom by reacting a carbonyl compound with a cyclopentadienyl compound in the presence of a base and of an oxygen-containing solvent having an atomic ratio carbo... | 05/14/2002 |
| 6313068 | Synthesis methods, complexes and delivery methods for the safe and convenient storage, transport and application of compounds for inhibiting the ethylene response in plants The present invention generally relates to the regulation of plant physiology, in particular to methods for inhibiting the ethylene response in plants or plant products, and has three embodiments. The first embodiment relates to methods of minimizing impu... | 11/06/2001 |
| 6235856 | Polymerization of dicyclopentadiene Composition of (a) dicyclopentadiene, by itself or in a mixture with a strained cycloolefin, and (b) a catalytic amount of at least one carbene-free, divalent-cationic ruthenium or osmium compound as a single-component catalyst, which contains at least on... | 05/22/2001 |
| 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 |
| 6174457 | Compound having alkadienyl group as side chain, and liquid crystal composition using same A compound represented by the general formula (1) ##STR1## wherein R1 is an alkadienyl group having 4 to 10 carbon atoms in which a hydrogen atom may be substituted by a fluorine atom or the like; R2 is an alkenyl group having 2 to 1... | 01/16/2001 |
| 6168728 | Acetylene derivatives, and liquid crystal composition and liquid crystal display device each comprising the same The present invention provides new liquid crystalline compounds having a high optical anisotropy value and excellent compatibility with the other liquid crystals, and liquid crystal composition comprising the compounds. The liquid crystalline compounds are rep... | 01/02/2001 |
| 6153804 | Production of cyclopentane and/or cyclopentene from partially hydrogenated pyrolysis gasoline A process for producing cyclopentane and cyclopentene by fractional distillation of partly hydrogenated pyrolysis gasoline, in which (a) partly hydrogenated pyrolysis gasoline is fractionally distilled in a first distillation column, (b) a C5 hydroc... | 11/28/2000 |
| 6043403 | Process for the preparation of cyclopentadienyl compounds and compounds obtained therefrom A process is disclosed for preparing bis-cyclopentadienyl compounds bridged by a single carbon atom by reacting a carbonyl compound with a cyclopentadienyl compound in the presence of a base and of an oxygen-containing solvent having an atomic ratio carbo... | 03/28/2000 |
| 6040407 | Chain polyene group-containing norbornene compound and unsaturated ethylene copolymer using the same The chain polyene-group containing norbornene compound of the invention is represented by the formula [I]: ##STR1## wherein n is an integer of 1 to 5, R1 is an alkyl group of 1 to 5 carbon atoms, and R2 and R3 are eac... | 03/21/2000 |
| 6017849 | Synthesis methods, complexes and delivery methods for the safe and convenient storage, transport and application of compounds for inhibiting the ethylene response in plants The present invention generally relates to the regulation of plant physiology, in particular to methods for inhibiting the ethylene response in plants or plant products, and has three embodiments. The first embodiment relates to methods of minimizing impu... | 01/25/2000 |
| 5939595 | Preparation of diarylethanes A process for preparing diarylethanes of the general formula I ##STR1## where R1, R2, R3, R4, R5 and R6 are each hydrogen or C1 -C8 -alkyl, by reacting aromatic compou... | 08/17/1999 |
| 5929287 | Chlorination of substituted alkenes using trichloroisocyanuric acid This invention relates to a process for the selective monochlorination or dichlorination of certain substituted alkenes using trichloroisocyanuric acid. The chlorinated alkenes can be easily hydrolyzed to provide -monochloroketones or , ... | 07/27/1999 |
| 5866733 | Preparation of diarylethanes Diarylethanes of the formula I ##STR1## where R1 is hydrogen or C1 -C8 -alkyl, are prepared by reacting benzene with a styrene of the formula III ##STR2## where R1 has the abovementioned meanings, by a... | 02/02/1999 |
| 5866497 | Catalyst for the production of olefin polymers A catalyst precursor of the formula: ##STR1## wherein: R1 is a cycloalkadienyl ligand; R2, R3, R4, and R5 are independently hydrogen, a hydrocarbyl group containing 1 to 20 carbon atoms, or a silyl gr... | 02/02/1999 |
| 5847247 | Terpene-based solvents The specification discloses terpene-based solvent compositions which comprise diterpenes as a major component and a minor amount of monoterpenes. The mixtures exhibit solvent properties similar to monoterpenes but have flash points high enough to be class... | 12/08/1998 |
| 5744666 | Process for preparing an alkynyl fulvene group containing compound and said compound A process for preparing an alkynyl fulvene group containing compound and said compound is provided. Said process comprises reacting an alkynyl ketone compound with a cyclopentadienyl-type compound.... | 04/28/1998 |
| 5728908 | Process for preparing a bridged ligand and said bridged ligand A process for preparing a bridged ligand, where said bridged ligand has an alkynyl group, and said bridged ligand is provided. Said process comprises reacting an alkynyl fulvene containing compound with an alkali metal salt of a cyclopentadienyl-type comp... | 03/17/1998 |
| 5723709 | Terpene dimer compositions and related methods of manufacture Terpene dimer compositions are provided which dry into a hard, tack free film upon exposure to air. The compositions include a terpene dimer having the molecular formula C20 H32 and contain at least one double bond. The terpene dimer... | 03/03/1998 |
| 5648583 | Process for converting exo-isomers of alkyl substituted cyclopentadienes to endo-isomers Exo-isomers of polyalkylcyclopentadienes are converted to endo-isomers by contacting the exo-isomers with an acid such as aqueous HCl.... | 07/15/1997 |
| 5609653 | Fuel compositions containing at least one fulvene derivative and their use Fuel compositions containing a major proportion of at least one fuel base and a minor proportion of at least one fulvene derivative, characterized in that the said fulvene derivative is a 5-(alkylalkylidene)-1,3-cyclopentadiene of formula (I) below: ... | 03/11/1997 |
| 5516884 | Preparation of polycarbynes and diamond-like carbon materials made therefrom Synthesis and characterization of polycarbynes, a new class of carbon-based random network polymers. The network backbones of the polymers are composed of tetrahedrally hybridized carbon atoms, each bearing one substituent and linked via three carbon-carb... | 05/14/1996 |
| 5446222 | Oligomers of cyclopentadiene and process for making them The invention provides a two-step process for converting cyclopentadiene dimer to a high density fuel mixture comprising the steps of: (a) reacting said cyclopentadiene dimer in the presence of a solid catalyst comprising a porous crystalline material having a... | 08/29/1995 |
| 5405550 | Compounds and methods based on [1.1.1]propellane Molecular bulding beams, liquid crystals, and surfactants in the form of compounds based on [1.1.1]propellane, including poly[1.1.1]propellanes. Molecular building beams having a telomeric or polymeric chain staff, and linking groups functionalized on one... | 04/11/1995 |
| 5264212 | Natural red coloring matter and its processing method Impurities containing a pungent taste component are removed from a hot red pepper oleoresin as a starting material therefrom by a supercritical gas extraction method using a carbon dioxide as an extracting reagent, and the extraction residue is used as a ... | 11/23/1993 |
| 5262501 | Mixtures of spiroheptadienes Mixtures essentially comprising compounds of formula I or II ##STR1## wherein X is a hydrogen atom or vinyl, A is a divalent aromatic radical which is unsubstituted or substituted by one or more C1 -C20 alkyl groups, halogen ato... | 11/16/1993 |
| 5045229 | Difluoromethylene compounds Difluoromethylene compounds of the formula I R1 --(A1 --Z1)m --A2 --Q--CF2 --(A3 --Z2)n --A4 --R2 I in which R1,... | 09/03/1991 |
| 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 |
