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Nippon Oil Company, Limited Patents
Assignee:
Nippon Oil Company, Limited
Address:
Tokyo, JP
No. of patents:
140
Patents:


1 2 3










Patent Number Title Of Patent Date Issued
6175046 Method of hydrogenating aromatic hydrocarbons in hydrocarbon oil January 16, 2001
There is provided a catalyst that is highly resistant to sulfur and nitrogen compounds and active for hydrogenation and shows a low hydrocracking rate and a long service life as well as a method of converting aromatic hydrocarbons in hydrocarbon oil containing sulfur and nitrogen com
6124913 Compensating film for a liquid crystal display and an OCB mode liquid crystal display incorporat September 26, 2000
As a compensator for use in an OCB mode liquid crystal display there is provided a compensating film capable of making color compensation and attaining such a viewing angle expansion as has not been attainable heretofore. A compensating film for a liquid crystal display, constituted
6077804 Olefin polymerization catalyst and process for preparing polyolefins June 20, 2000
According to the present invention, there are provided a catalyst and a process for the preparation of polyolefins having a relatively wide molecular weight distribution, good particle properties, a narrow composition distribution in copolymerization and a high molecular weight and b
6068792 Liquid crystalline polymer film May 30, 2000
A liquid crystalline polymer film formed from a liquid crystalline polymer the orientation structure of which is smectic CA phase fixed. In this orientation structure the angle between C-director in the liquid crystalline polymer and the film plane is not zero. The liquid crystalline
6034188 Process for preparing polyolefins March 7, 2000
An olefin polymerization is conducted in the presence of a catalyst comprising a solid catalyst component and an organometallic compound, said solid catalyst component being prepared by reacting the following components [I], [II] and [III] with one another:[I] a reaction product obtained
6015951 Photoelectric transfer device January 18, 2000
This invention relates to a photoelectric transfer device which comprises a photoelectric transfer element, a cholesteric liquid crystal layer and an ultraviolet cut-off layer, said cholesteric liquid crystal layer being arranged between said photoelectric transfer element and said ultra
5989758 Liquid crystalline polyesters, their composition, and their uses November 23, 1999
There are provided liquid crystalline polyesters comprising 4'-hydroxy-4-stilbenecarboxylic acid type units, dicarboxylic acid units acting as a mesogen such as 4,4'-stilbenecarboxylic acid and catechol units as essential ingredients, and a liquid crystalline polyester composition co
5943110 Liquid crystal display device provided with a liquid crystalline compensating film having a posi August 24, 1999
A liquid crystal display device having improved and broadened viewing angle characteristics. The device includes a liquid crystal cell of the twisted nematic type for driving sandwiched by a pair of upper and lower polarizing plates in which at least one compensating film is inserted
5935359 Process for producing carbonaceous preform August 10, 1999
A carbonaceous preform, which is free from such drawbacks as delamination and is superior in formability and mass productivity, can be obtained by a process comprising the steps of fixing a laminate of stacked carbon fibers with a fixing jig in the absence of a binder, impregnating the t
5883685 Compensating film for a liquid crystal display and an OCB mode liquid crystal display incorporat March 16, 1999
As a compensator for use in an OCB mode liquid crystal display there is provided a compensating film capable of making color compensation and attaining such a viewing angle expansion as has not been attainable heretofore.A compensating film for a liquid crystal display, constituted by at
5855971 Liquid crystalline optical film, compensating film for liquid crystal display comprising the liq January 5, 1999
A compensating film capable of compensating both twist structure based on a liquid crystal cell and refractive index anisotropy to diminish the visual angle dependence of a liquid crystal display is provided.The film is formed using a discotic liquid crystalline material and the orientat
5804679 Process for preparing polyolefins September 8, 1998
Polyolefins exhibiting better particle properties are prepared by polymerizing an olefin or olefins in the presence of a catalyst comprising a solid catalyst component being prepared by the reaction of the following components [I] and [II]:[I] a reaction product obtained by reacting the
5766518 Light modulating materials June 16, 1998
A light modulating material having an excellent energy saving effect as window materials and others which comprises as a main component member a laminate wherein a liquid crystalline material is placed over at least one light transmitting substrate, said laminate having properties of a l
5756660 Process for producing polyethylene material of high strength and high plastic modulus May 26, 1998
A polyethylene article such as film or fiber having high strength and high elastic modulus is produced by orienting an ultra-high molecular weight polyethylene having an intrinsic viscosity at 135.degree. C. in decalin of 5 to 50 dl/g, said ultra-high molecular weight polyethylene being
5728641 Catalyst component for the polymerization of olefins March 17, 1998
According to the present invention there are provided a catalyst component, a catalyst using the catalyst component and a process using the catalyst, for the preparation of olefin polymers high in molecular weight and relatively wide in molecular weight distribution, using an extremely s
5644008 Process for preparing polyolefins July 1, 1997
Olefin is polymerized using a catalyst comprising a solid catalyst component and an organometallic compound, the solid catalyst component being prepared by reacting 1 a reaction product obtained by reacting the reaction product of Si oxide and/or Al oxide and Ti compound or both Ti c
5622660 Process for producing carbon fiber fabrics April 22, 1997
A process for producing a process for producing a two- or three-dimensional carbon fabric, which process includes melt-spinning (a) an optically anisotropic carbonaceous pitch having an optically anisotropic phase content of 60 to 100%, subjecting the thus- infusibilized fibers to a
5614134 Process for preparing carbon/carbon composite preform and carbon/carbon composite March 25, 1997
A carbon/carbon composite is prepared without using any expensive carbon fiber fabric and without performing any complicated molding step prior to a densifying step. More specifically, a pitch-based infusiblized fiber alone, or optionally in the form of a mixture thereof with a pitch-bas
5604170 Solid catalyst components for olefin polemerization and use thereof February 18, 1997
An effective catalyst carrier for use in the polymerization of olefins is provided.Said carrier comprises particles of silicon oxide or aluminum oxide satisfying the following characteristics (A) to (E):(A) An average particle diameter as measured by the sieving method is in the range of
5599478 Compensator for a liquid crystal display February 4, 1997
According to the present invention there is provided a compensator for a liquid crystal display superior in the color compensating performance, capable of making color compensation of a high-speed STN-LCD and capable of freely changing the value of wavelength dispersion. The compensator
5578243 Liquid crystalline polymer film, process for producing same, and utilization thereof November 26, 1996
A liquid crystalline polymer film useful as a high functional optical element is provided. Said liquid crystalline polymer film is formed on a substrate and having at least a tilt orientation fixed, and said tilt orientation is such that the angle between a director of said liquid cr
5561221 Methods and compositions for promoting protein folding October 1, 1996
Disclosed are 1) compositions comprising isolated monomeric subunits of chaperonin-60 or truncated fragments thereof that promote the folding of a polypeptide chain in vitro, 2) monomeric subunits of chaperonin-60 or truncated fragments thereof, immobilized on a solid surface, that promo
5556821 Catalyst component for the polymerization of olefins September 17, 1996
According to the present invention there is provide a catalyst capable of affording an olefin homopolymer or copolymer having a high molecular weight and a relatively wide molecular weight distribution, in high yield, using an extremely small amount of a modified organoaluminum compound
5541271 Process for preparing polyolefins July 30, 1996
A polyolefin having superior particle properties such as an extremely high bulk density, a large average particle diameter and a narrow particle size distribution, and having a narrow molecular weight distribution, is obtained in high yield, by polymerizing an olefin, using a catalyst
5526150 Liquid crystal polymer viewing angle compensator for liquid crystal display having its largest r June 11, 1996
A viewing angle compensator for a liquid crystal display having characteristics such as being able to diminish the visual angle dependency of the liquid crystal display is provided. The viewing angle compensator of the present invention comprises a light transmitting base and a film of
5506183 Catalyst for preparing polyolefins April 9, 1996
Polyolefins having better particle properties are obtained by polymerizing olefins in the presence of a catalyst comprising a solid catalyst component and an organometallic compound, the said solid catalyst component being prepared by reacting the following components [I] and [II] an
5491001 Method for producing viewing angle compensator for liquid crystal display February 13, 1996
The present invention relates to a method for producing a viewing angle compensator for liquid crystal displays which diminishes the view angle dependency of the liquid crystal display. More specifically, the method of making the view angle compensator involves applying a coating of an
5470558 Process for producing pitch-based carbon fibers superior in compression characteristics November 28, 1995
Pitch-based carbon fibers superior in compression characteristics are obtained by mixing a polycyclic aromatic compound and a hydrogen donating compound at a mole ratio of the latter to the former in the range of 0.1 to 10, polymerizing the resulting mixture at a temperature of 50.degree
5463001 Process for preparing polyolefins October 31, 1995
Polyolefins exhibiting better particle properties are prepared by polymerizing an olefin or olefins in the presence of a catalyst comprising a solid catalyst component and an organometallic compound, said solid catalyst component being prepared by the reaction of the following compon
5460748 Liquid crystalline polymer film, process for producing same, and utilization thereof October 24, 1995
A liquid crystalline polymer film useful as a high functional optical element is provided. Said liquid crystalline polymer film is formed on a substrate and having at least a tilt orientation fixed, and said tilt orientation is such that the angle between a director of said liquid cr
5456867 Viewing angle compensator for liquid crystal display October 10, 1995
According to the present invention there is provided a viewing angle compensator for a liquid crystal display capable of diminishing the viewing angle dependency of the liquid crystal display.The viewing angle compensator comprises a light transmitting substrate and a film of a specific
5452857 Burner for burning liquid fuel September 26, 1995
A burner for burning liquid fuel is provided, which atomizes liquid fuel together with an atomizing medium mixed with the fuel. The inhibition of generation of NOx in exhaust gas and that of generation of soot and dust are caused to be compatible by the burner, and the manufacturing
5437693 Heavy oil emulsion fuel composition August 1, 1995
A heavy oil emulsion fuel composition which contains heavy oils, such as bitumen and asphalt, wherein the heavy oil emulsion fuel composition can be used as a substitute fuel for heavy fuel oils, and has an enhanced combustion efficiency to thereby reduce the content of soot, dust and
5432249 Liquid crystalline polyesters July 11, 1995
The present invention provides a novel liquid crystalline polyester comprising structural units represented by the following general formulae A, B, C and D: ##STR1## where X and Y are each independently H, Cl, Br or an alkyl group having 1 to 4 carbon atoms, the molar ratio of A/
5432236 Process for preparing polyolefins July 11, 1995
According to the present invention, in a vapor phase polymerization of olefins, there is provided an efficient polyolefin manufacturing process capable of preventing the formation of a sheet-like polymer and allowing an olefin polymerization reaction to be started stably. More particular
5413657 Method of making compensator for liquid crystal display May 9, 1995
A compensator for a liquid crystal display device is made by applying a solution containing a liquid crystalline polymer onto an orientation substrate, then allowing the liquid crystalline polymer to be oriented, and thereafter transferring the resulting layer of the liquid crystalline
5411558 Heavy oil emulsion fuel and process for production thereof May 2, 1995
An oil-in-water type heavy oil emulsion fuel having a specific and broad particle size distribution which has a viscosity close to that of water, can be sufficiently atomized at a temperature of room temperature to 90.degree. C., is excellent in the handleability and fluidity, despite a
5391688 Liquid crystalline polyesters February 21, 1995
It is intended to provide a liquid crystalline polyester whose orientation in the state of liquid crystal can be easily immobilized as glass phase and which is suitable for application to optical elements.A liquid crystalline polyester comprising repeating units a, b, c and d represented
5391660 Process for preparing polyolefines February 21, 1995
Polyolefins having a high molecular weight, an appropriate molecular weight distribution and a relatively narrow composition distribution are prepared in high activity.The polymerization of an olefin or olefins is performed in the presence of a catalyst comprising a catalyst component an
5382482 Zinc electrode for alkaline storage battery January 17, 1995
According to the present invention there is provided a negative zinc electrode for an alkaline storage battery, comprising an electrode using zinc as an active material and a polymer layer which is substantially in direct contact with the electrode, the polymer layer containing at least
5369193 Process for preparing polyolefins November 29, 1994
Polyolefins exhibiting better particle properties are prepared by polymerizing an olefin or olefins in the presence of a catalyst comprising a solid catalyst component and an organometallic compound, the solid catalyst component being prepared by reacting the following components [I]
5359443 Process for producing heat-resistant optical element by heating liquid crystal polymer at polyme October 25, 1994
A process for producing an optical element using a liquid crystalline polymer and superior in heat resistance is provided. In a process for producing an optical element comprising a light transmitting substrate, an alignment film formed on the substrate and a layer of a liquid crystallin
5359036 Growth hormone-like glycoproteins October 25, 1994
Disclosed herein are methods and means of producing novel growth hormone-like proteins derived from the pituitary gland of fishes belonging to the order Pleuronectina, the family Paralichthydae, which are useful in the growth promotion for fishes, by genetic engineering using cloned
5358661 Liquid crystalline polyesters October 25, 1994
It is intended to provide a novel polyester which is optically active, can be prepared easily and inexpensively and is superior in stability and solubility in solvents.A liquid crystalline polyester consisting essentially of repeating units represented by the following formulae (a), (b),
5348820 Zinc electrode for alkaline storage battery September 20, 1994
A negative zinc electrode for an alkaline storage battery capable of suppressing the occurrence of dendrite and shape change is provided. The negative zinc electrode comprises an electrode using zinc as an active material and a polymer layer formed substantially in direct contact with
5342982 Silicon-containing organic compounds and process for preparing same August 30, 1994
Silicon-containing organic compounds useful as starting materials of functional polymer materials, as well as a process for preparing the same, are provided. The silicon-containing organic compounds are represented by the following general formula: ##STR1## where R.sup.1 is a .pi
5326496 Compensator for liquid crystal display July 5, 1994
A compensator for liquid crystal display which is composed of:a light transmitting base;an alignment layer formed on said base; anda film formed on said alignment layer by a liquid crystalline polymer which exhibits a twisted nematic orientation in the state of liquid crystal and which assum
5288426 Nonlinear optical materials February 22, 1994
A nonlinear optical material having a high nonlinear optical constant useful for frequency doubler of laser beam which comprises a chiral smectic C liquid crystalline polyester consisting essentially of the structural units having the general formulae (A), (B) and (C); ##STR1## W
5266666 Process for preparing ethylene polymers or copolymers November 30, 1993
Ethylene and optionally an .alpha.-olefin are polymerized in the presence of a catalyst comprising a solid catalyst component and an organometallic compound, said solid catalyst component being obtained by mutually contacting the following components:(A) a reaction product obtained by th
5262453 Cushion or trackbed material for use in riding-ground November 16, 1993
A cushion or trackbed material for use in a riding-ground is obtained by coating sand with a carboxyl-containing olefin polymer and an oxygen-containing wax.
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