Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Kureha Kagaku Kogyo Kabushiki Kaisha Patents
Assignee:
Kureha Kagaku Kogyo Kabushiki Kaisha
Address:
Tokyo, JP
No. of patents:
706
Patents:


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15










Patent Number Title Of Patent Date Issued
4783419 Examining cells by electrophoresis November 8, 1988
Disclosed herein is a method for examining cells, comprising subjecting the cells to an antigen-antibody reaction treatment, then measuring a pattern of the electrophoretic mobility of the cells and comparing the electrophoretic property of the cells under examination with the electr
4781994 Fiber-reinforced cement material and molded article comprising hardened product thereof November 1, 1988
A cement material containing polyarylene thioether fibers and carbon fibers as reinforcing fiber and molded articles comprising hardened products thereof are disclosed.The fiber reinforced cement material is curable in an autoclave and the molded articles comprising the hardened products
4778736 Electrode substrate provided with manifold, for a fuel cell and process for producing the same October 18, 1988
Disclosed herein is an electrode substrate provided with a manifold, for a fuel cell, comprising (1) the two porous and carbonaceous electrodes respectively provided with the flow channels of a reactant gas and joined to both surfaces of a separator via a flexible graphite sheet, (2) the
4777228 Biaxially oriented paraphenylene sulfide block copolymer film and process for producing the same October 11, 1988
Disclosed herein is a biaxially oriented paraphenylene sulfide block copolymer film showing a heat shrinkage of 0-2.0% at 100.degree.-220.degree. C., comprising a paraphenylene sulfide block copolymer essentially composed of recurring units (A): ##STR1## and recurring units (B):
4777083 Carbon article comprising pieces of carbonaceous material bonded with one another and process fo October 11, 1988
Disclosed herein are an integrated carbon article of a large size having a bulk density of more than 1.01 g/cm.sup.3, comprising pieces of carbonaceous material(s) of the same or different quality and flexible graphite sheet(s) produced by interposing the flexible graphite sheet(s) b
4775590 Optical fiber October 4, 1988
A resin-made optical fiber is composed of a core of a polymer or copolymer obtained from a polymerizable monomer, which contains at least 1 wt. % of a crosslinkable monomer, and a cladding of a polymer of copolymer having a refractive index smaller than the core. The optical fiber is fab
4775571 Biaxially stretched polyparaphenylene sulfide film and process for producing the same October 4, 1988
Disclosed herein are a biaxially stretched polyparaphenylene sulfide film having protuberances on the surface of the film in number of not less than 10.sup.2 /mm.sup.2 of the surface thereof, an average diameter of the bottom part of the protuberances being from 5 to 40 .mu.m and an aver
4774298 Process for producing biaxially oriented paraphenylene sulfide block copolymer film September 27, 1988
Disclosed herein is a process for producing a biaxially oriented paraphenylene sulfide block copolymer film, comprising melt extruding and molding a paraphenylene sulfide block copolymer essentially composed of recurring units (A): ##STR1## and recurring units (B): ##STR2##
4774136 Solvent for the chromogenic dye-precursor material for a pressure-sensitive recording paper shee September 27, 1988
Disclosed herein are a solvent for a chromogenic dye-precursor material for a pressure-sensitive recording paper sheet, comprising (1) 30 to 80% by weight of p-monoisopropylbiphenyl or a biphenyl mixture of not less than 80% by weight of p-monoisopropylbiphenyl, not more than 20% by weig
4772334 Process for producing highly pure rhamnose from gum arabic September 20, 1988
Disclosed herein is a process for producing highly pure rhamnose from gum arabic, which the process comprises after partially hydrolyzing gum arabic in an aqueous solution of a mineral acid, neutralyzing and condensing the liquid hydrolyzate, thereby obtaining an aqueous solution contain
4769442 Process for treating a polymer slurry September 6, 1988
A process for treating a polyarylene sulfide polymer slurry which has been provided by reactions of an alkali sulfide and a dichloroaromatic compound in N-methylpyrrolidone, the process comprising the following steps of (i) through (iv): (i) a step of separating a polymer slurry which co
4769426 Process for preparation of polyarylene thioethers having high melt crystallization temperature September 6, 1988
Polyarylene thioethers having increased melt crystallization temperature are produced by subjecting a polyarylene thioether recovered from a conventional polycondensation of dichlorobenzene with sodium sulfide to a treatment with an aqueous non-oxidative strong acid such asd HCl, H.sub.2
4764406 Smokable synthetic food-packaging film August 16, 1988
Disclosed herein is a smokable food-packaging film comprising at least one layer of a mixture of 45 to 85 wt % polyamide, 10 to 45 wt % copolymer of olefin and vinyl alcohol, and 5 to 30 wt % polyolefin, in which the mixture falls in the pantagonal range defined in FIG. 1 by linear lines
4762955 Process for separating para-dichlorobenzene from isomeric mixture of dichlorobenzenes August 9, 1988
Disclosed herein is a process for separating p-dichlorobenzene from an isomeric mixture of dichlorobenzenes comprising adding 1-bromo-4-chlorobenzene, 1,4-dibromobenzene or a mixture of 1-bromo-4-chlorobenzene and 1,4-dibromobenzene to the isomeric mixture of dichlorobenzenes, heatin
4761468 Process for preparing polyarylene thioether having thiol/thiolate end group concentration of 10 August 2, 1988
In a process for producing a polyarylene thioether having high stability by dehalogenation/sulfurization reaction of an alkali metal (M) sulfide such as sodium sulfide and a dihaloaromatic compound such as paradichlorobenzene in a polar organic solvent, the haloaromatic compound is u
4759989 Electrode substrate for fuel cell July 26, 1988
Disclosed herein is an electrode substrate for a fuel cell, wherein at least a part of the electrode substrate comprises a flexible carbon material obtained from a composite material comprising carbon fibers of not less than 1 mm in mean length which have been treated at a temperature
4759977 Flexible carbon material July 26, 1988
A flexible carbon material is produced by carbonizing a composite material comprising carbon fibers having an average length of 6 to 50 mm and a binding agent. Carbon lumps are derived from the binding agent and are dispersed in a matrix of the carbon fibers so as to restrain a plurality
4758591 Dialkanoyloxybenzylidene dialkanoate July 19, 1988
Disclosed herein are dialkanoyloxybenzylidene dialkanoate represented by the formula, ##STR1## wherein X.sup.1 and X.sup.2 represent respectively alkanoyloxy group and a pharmaceutical composition in dosage unit form which comprises a dosage effective for the treatment of inflamm
4758558 N-(substituted)-[7-(2-cyanoacetamido)cephalosporanic]amide derivatives having antibiotic utility July 19, 1988
Disclosed herein are the derivatives of substituted cephalosporanic acid represented by the formula (I): ##STR1## wherein R.sup.1 represents a 4-pyridylthiomethyl group, an alpha-aminobenzyl group, a cyanomethyl group or a 1-tetrazolylmethyl group; R.sup.2 represents a hydrogen a
4757054 Pharmaceutical composition containing para-amino-benzoic acid-N-D-xyloside as an active ingredie July 12, 1988
Disclosed is a pharmaceutical composition containing p-aminobenzoic acid-N-D-xyloside or a pharmaceutically a acceptable salt thereof as an active ingredient.
4756973 Photochromic lens July 12, 1988
A photochromic lens is composed of a lens member made of a lens resin; and a photochromic layer applied on at least one side of the lens member and formed of a resin of a three-dimensional network structure. The layer-forming resin contains a spirooxazine compound represented by the
4754060 Process for producing naphthalenedicarboxylic acid together with trimellitic acid June 28, 1988
Disclosed herein is a process for producing 2,6-naphthalenedicarboxylic acid together with trimellitic acid comprising oxidizing 2,6-diisopropylnaphthalene with molecular oxygen in the presence of a catalyst comprising a heavy metal(s) and bromine.
4748983 X-ray transmissive electrode for a living body June 7, 1988
Disclosed herein is an electrode for a living body, which is used in a defibrillator and the like without hindering X-ray inspection, the main part of the electrode (hereinafter referred to as "the electrode substrate") comprising a porous material composed of granular or fibrous car
4748205 Thermoplastic resin composition May 31, 1988
A thermoplastic resin composition of high heat resistance and high impact resistance is described, comprising: (A) 50 to 90% by weight of a copolymer prepared by copolymerization of 10 to 35% by weight of acrylonitrile, 60 to 85% by weight of a monomer mixture of 2-isopropenylnaphtha
4746757 Process for producing (2-hydroxy-2-propyl)-naphthalene compounds May 24, 1988
Disclosed herein is a process for producing (2-hydroxy-2-propyl)naphthalene compounds, comprising oxidizing a naphthalene compound having isopropyl group(s) on the naphthalene ring in the presence of peroxodisulfate in a mixed solvent of water and an organic polar solvent.
4746698 Method of preventing corrosion of apparatus for melt-processing polyarylene thioethers May 24, 1988
Corrosion of a melt-processing apparatus for processing a polyarylene thioether at a temperature higher than the melting point thereof is prevented by a method which comprises adding to 100 parts by weight of the polyarylene thioether 0.001 to 10 parts by weight of at least one member
4746536 Method for selective chemical plating May 24, 1988
In the process of chemical plating on a formed article composed of a polyarylene sulfide or a composition comprising a polyarylene sulfide as the predominant resin component, a method for selective chemical plating is provided, which comprises irradiating a portion not to be plated of th
4745167 Polyarylene sulfide preparation in titanium reaction vessel with two distinct temperature ranges May 17, 1988
A process for the preparation of a high-molecular-weight polyarylene sulfide, which comprises subjecting an alkali metal sulfide such as sodium sulfide and a dihalo aromatic compound such as dichlorobenzene to dehalogenation sulfidation reaction in an organic amide solvent, wherein a
4744879 Oxygen-cathode for use in electrolysis of alkali chloride and process for preparing the same May 17, 1988
Disclosed herein are an oxygen-cathode for use in electrolysis or an alkali chloride, comprising a current collector made of a compact carbonaceous material, electrode substrate(s) made of a porous carbonaceous material and the catalyst carried on the electrode substrate(s), wherein the
4743519 Fuel cell electrode substrate provided with peripheral sealers May 10, 1988
Disclosed herein are an electrode substrate provided with peripheral sealers for a fuel cell, comprisingtwo porous and carbonaceous electrodes respectively provided with flow channels of the reactant gas, said electrodes being joined to the both surfaces of a separator via a flexible gra
4738843 Anti-tumor substance of immunoglobulin and melphalan and process for producing the same April 19, 1988
Disclosed herein are an anti-tumor substance obtained by bonding an anti-tumor agent to human immunoglobulin, and a process for producing the same.
4734409 Cephalosporin derivative, process for producing the same and pharmaceutical composition containi March 29, 1988
Disclosed herein are a cephalosporin derivative represented by the formula (I): ##STR1## wherein R.sup.1 represents a halogenoalkyl group, a salt and ester thereof, a process for producing the same, and a pharmaceutical composition and an antibacterial agent comprising the same.
4732935 Thermoplastic resin composition March 22, 1988
A thermoplastic resin composition of high heat resistance and high impact resistance in described, comprising: (A) 5 to 85% by weight of a copolymer prepared from 40 to 85% by weight of a monomer mixture of 2-isopropenylnaphthalene (2-IPN) and .alpha.-methylstyrene (.alpha.-MeSt), th
4732795 Heat-shrinkable laminate tubular film March 22, 1988
Disclosed herein is a heat-shrinkable laminate tubular film comprising a gas-barrier layer of a copolymer of vinylidene chloride, outer layers of a polyolefin, at least one intermediate layer of a polyamide or a thermoplastic polyester both of which show a crystal melting point of not
4731390 Biaxially stretched polyparaphenylene sulfide film March 15, 1988
Disclosed herein is a biaxially stretched polyparaphenylene sulfide film comprising a resin composition consisting essentially of 100 parts by weight of a resin of polyparaphenylene sulfide series and from 0.3 to 15 parts by weight of poly(4-methylpentene-1).
4731288 Vinylidene fluoride resin film and metallized film thereof March 15, 1988
A vinylidene fluoride resin film having (1) a crystal melting point of 182.degree. C. or higher as measured by differential scanning calorimeter in nitrogen atmosphere at a temperature elevation speed of 10.degree. C./min; (2) a diffraction point corresponding to (1 1 .zeta.) of the
4729910 Reinforced flexible graphite sheet March 8, 1988
Disclosed herein is a reinforced flexible graphite sheet uniformly containing a thermosetting resin prepared by impregnating a flexible graphite sheet with a liquid thermosetting resin having the carbonizing yield of more than 20% under a reduced pressure and thereafter, heat-setting
4725598 Derivative of dihydroxybenzamide and a pharmaceutical composition having an anti-inflammatory ac February 16, 1988
Disclosed herein are a derivative of dihydroxybenzamide represented by the formula(I): ##STR1## wherein (1) R.sup.1 represents a hydrogen atom or a lower alkyl group and R.sup.2 represents a straight chain-alkyl group of 4 to 12 carbon atoms, a branched chain-alkyl group of 4 to
4722932 2-substituted-4-thiazolidones February 2, 1988
Disclosed herein novel compounds, 2-substituted-4-thiazolidones having anti-peptic ulcer activity, and methods for producing the same.
4708950 Pharmaceutical composition containing a derivative of orthoaminobenzoic acid as an active ingred November 24, 1987
Disclosed is a pharmaceutical composition containing an aminobenzoic acid derivative as an active ingredient represented by the following general formula: ##STR1## wherein .sup.1 R denotes one member selected from the group consisting of the residual groups formed by removing OH
4705702 Process for continuously distributing fibrous material and apparatus therefor November 10, 1987
A process and an apparatus for distributing short fibrous material onto a horizontally travelling sheet. A disintegrated short fibrous material is fed into a hopper comprising a substantially hollow casing disposed above the travelling sheet and having a fiber discharge port at a lower p
4704006 Halogen-containing resin lens material November 3, 1987
A halogen-containing resin lens material, having a refractive index of n.sub.D =1.55 or higher, an Abbe number of 27 or higher and good dyeable property and comprising a copolymer containing 10 to 90 wt. % of a monomer (I) represented by the formula (I) shown below: ##STR1## wher
4701495 Thermoplastic resin composition October 20, 1987
A thermoplastic resin composition of high heat resistance and high impact resistance is described, comprising: (A) 50 to 90% by weight of a copolymer prepared by copolymerization of 10 to 35% by weight of acrylonitrile, 60 to 85% by weight of a monomer mixture of 2-isopropenylnaphtha
4699975 Process for producing readily crystallizable arylenesulfide resin composition containing organic October 13, 1987
A readily crystallizable arylenesulfide resin composition is produced by adding, to 100 parts by weight of an arylenesulfide polymer, 0.01 to 10.0 parts of an organic acid or organic acid anhydride having a high boiling or melting point such as 2,6-naphthalene dicarboxylic acid, and then
4699846 Heat-resistant and oil-resistant laminate film and process for preparing the same October 13, 1987
Disclosed herein are a heat-resistant and oil-resistant laminate film comprising gas-barrier resin layer(s), thermoplastic resin layer(s) different from a gas-barrier resin and adhesive layer(s) disposed between the gas-barrier resin layer and the thermoplastic resin layer, produced by
4699787 Nitrogen-containing polysaccharide October 13, 1987
A method of restoring the immune response of a patient having a lowered immune response level is provided, in which the patient is given an effective amount of certain nitrogen-containing polysaccharides derived from Coriolus versicolor (Fr.) Quel, where the polymer units having a mo
4699659 Solvent for chromogenic dye-precursor material for pressure-sensitive recording paper sheet and October 13, 1987
Disclosed herein are a solvent for a chromogenic dye-precursor material for a pressure-sensitive recording paper sheet, comprising (1) 30 to 80% by weight of p-monoisopropylbiphenyl or a biphenyl mixture of not less than 80% by weight of p-monoisopropylbiphenyl, not more than 20% by weig
4699658 Solvent for chromogenic dye-precursor material for pressure-sensitive recording paper sheet and October 13, 1987
A solvent for chromogenic dye-precursor material for pressure-sensitive recording paper sheet, comprising 50 to 80% by weight of p-monoisopropylbiphenyl and 50 to 20% by weight of hydrogenated terphenyl, and a pressure-sensitive recording paper sheet prepared by using the solvent.
4696856 Pressure-sensitive recording material September 29, 1987
Disclosed herein is a pressure-sensitive recording material including such a sheet excellent in the durability and definition of the recorded images transcribed on another sheet, which is produced by the process comprising the step of applying the microcapsules encapsulating minute parti
4690920 Derivative of cephalosporanic acid and pharmaceutical composition comprising the same September 1, 1987
Disclosed herein are a derivative of a substituted cephalosporanic acid, represented by the formula (I): ##STR1## wherein p is 0, 1 or 2 and R.sup.1 represents a hydrogen atom, a hydroxyl group, a carbamoyl group, an alkyl group having 1 to 4 carbon atoms or --(CONH).sub.m (CH.su
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

 
 
  Recently Added Patents
Energy drink package
Fabrication method of semiconductor device and fabrication method of dynamic threshold transistor
Transcoded images for improved trick play
Method for automatically estimating inertia in a mechanical system
Antenna device
Case for electronic device
Loudspeaker grille
  Randomly Featured Patents
Tooth structure for burr-free cutting saw blade
Stepped diffuser
Device for drying a gas
High volume financial image media creation and display system and method
Drive belt
Faucet handle
Dynamic updating of SCP through ISUP messages
Wire bonding apparatus and method
Capsule composition for use as immunogen against Campylobacter jejuni
Optical scan apparatus and color image formation apparatus