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Mitsubishi Gas Chemical Company, Inc. Patents
Assignee:
Mitsubishi Gas Chemical Company, Inc.
Address:
Tokyo, JP
No. of patents:
1113
Patents:


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Patent Number Title Of Patent Date Issued
5174816 Surface treating agent for aluminum line pattern substrate December 29, 1992
A surface treating agent for an aluminum line pattern substrate is disclosed, comprising an aqueous solution containing 0.01 to 15% by weight of quaternary ammonium hydroxide represented by the general formula: ##STR1## wherein R is an alkyl group having 1 to 3 carbon atoms, or a
5169977 Process for purifying dimethyl-2,6-naphthalene dicarboxylate December 8, 1992
A process for purifying crude 2,6-naphthalene dimethyl dicarboxylate (hereinunder referred to as 2,6-NDM) which comprises dissolving the crude 2,6-NDM into a C.sub.6 -C.sub.9 aromatic hydrocarbon, then contacting the solution of 2,6-NDM and the hydrocarbon with an hydrotalcite-like lamin
5166414 Process for producing isocyanate compound November 24, 1992
There is disclosed a process for producing an isocyanate compound from a formamide compound or an amine compound which comprises (a) the first reaction step of reacting a formamide compound with dimethyl carbonate in the presence of an alkali catalyst, or reacting methyl formate and an
5166039 Peeling solution for photo- or electron beam-sensitive resin and process for peeling off said re November 24, 1992
The peeling solution for photo- or electron beam-sensitive resin according to the present invention consists of an aqueous solution comprising hydrogen peroxide and a compound represented by the general formula (I) ##STR1## wherein R.sub.1 is H or an alkyl group of 1-2 carbon atoms,
5160787 Electrical laminate having ability to absorb ultraviolet rays November 3, 1992
An electrical laminate having an ability to absorb or shield ultraviolet rays having wavelength of 300-420 nm which comprises (i) at least one thermosetting resin-impregnated substrate, (ii) said substrate and a metal foil or (iii) said substrate, a metal foil and an adhesive layer for t
5156821 Reactor for reforming hydrocarbon October 20, 1992
A reactor for the reforming of hydrocarbons by a steam reforming reaction and a partial oxidation reaction, which comprises an upper tube sheet disposed in an upper portion of the reactor, a plurality of reaction tubes packed with a catalyst and suspended perpendicularly from the upper t
5153243 Acetal resin composition October 6, 1992
An acetal resin composition comprising an intimate mixture containing an acetal resin and ligneous pulp. This composition gives a molded article having excellent mechanical strength, heat resistance and fire retardancy.
5151549 Naphthalene compounds September 29, 1992
A compound represented by the formula: ##STR1## and a compound represented by the formula: ##STR2## wherein R is C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxy, which is an intermediate for producing the above compound (1) are disclosed.
5149857 Process for production of sulfonium compounds September 22, 1992
A process for producing sulfonium compounds represented by the general formula (III) which comprises reacting alkylthiophenol derivatives represented by the general formula (I) and dialkyl sulfate represented by the general formula (II).General Formula (I): ##STR1## General Formu
5147962 Melt-processable copolyesterimide composed of bis-trimellitimide units September 15, 1992
A copolyesterimide composed of bis-trimellitimide units, 2,6-naphthalenedicarboxylic acid units, hydroquinone units and p-hydroxybenzic acid units. This copolyesterimide is melt-processable, and excels in heat resistance and mechanical properties.
5147944 Polyamide resin, and polyamide resin compositions September 15, 1992
A polyamide resin which comprises a molten reaction mixture composed of 10-90% by weight of a polyamide (A1) from xylylenediamine and a C.sub.6 -C.sub.20 .alpha.,.beta.-linear aliphatic dibasic acid and 90-10% by weight of polyamide-6 (A2). The polyamide resin has either a single glass
5146025 Naphthalene compounds September 8, 1992
A compound represented by the formula: ##STR1## and a compound represented by the formula: ##STR2## wherein R is C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxy, which is an intermediate for producing the above compound (1) are disclosed.
5143769 Deoxidizer sheet September 1, 1992
A deoxidizer sheet suitable for preservation of goods such as foods is provided that has a first layer which essentially contains a deoxidation reaction main agent, such as mixture of iron powder and a metal halide, and a fixing material such as natural or synthetic fibers and heat-m
5136274 Humidity sensor August 4, 1992
A chemically and physically stable humidity sensor including a porous sintered body and electrodes, which is formed by bringing a humidity sensor including a porous sintered body and electrodes into contact with a solution of a polyurethane resin.
5132450 Process for producing high purity isophthalic acid July 21, 1992
A process for producing isophthalic acid by oxidation of m-xylene with an oxygen-containing gas in a hydrous acetic acid solvent in the presence of a cobalt/manganese/bromine system catalyst, the process being capable of industrially advantageously producing high-purity isophthalic acid
5132099 Method for producing hydrogen peroxide July 21, 1992
A method for producing hydrogen peroxide by the reaction of hydrogen and oxygen in the reaction medium in the presence of a platinum group metal catalyst supported on a halogenated resin, in which, since there are no halogen ion nor high concentrations of acid in the reaction medium of t
5116406 Plant growth regulating composition May 26, 1992
Disclosed is a plant growth regulating composition, which comprises containing at least one of choline salts and compounds having vitamin K.sub.3 activity as active ingredients and a plant growth regulating composition, and comprises containing at least one of choline salt, compounds
5112578 Reactor for reforming hydrocarbon and process for reforming hydrocarbon May 12, 1992
A hydrocarbon-reforming reactor by a steam reforming reaction and a partial oxidation reaction, which comprises a chamber for feeding oxygen-containing gas, a chamber for feeding a mixture gas of hydrocarbon with steam and a chamber for heat exchange of reformed gas in this order fro
5110982 Process for producing 2,6-napthalene dicarboxylic acid May 5, 1992
A process for producing 2,6-naphthalene dicarboxlic acid which comprises oxidizing a 2-alkyl-6-acyl naphthalene with molecular oxygen-containing gas in the presence of a catalyst containing cobalt, manganese and bromine in an acetic acid solvent, characterized in that the oxygen concentr
5106693 Transparent gas-barrier multilayer structure April 21, 1992
A transparent gas-barrier multilayer structure comprising (A) at least one layer of a polyamide composition comprising (a) 30 to 80 parts by weight of a first polyamide composed of an aromatic dicarboxylic acid as a main acid component and an aliphatic diamine as a main diamine component
5104635 Process for making hydrogen peroxide April 14, 1992
A process for making hydrogen peroxide by catalytically reacting oxygen with hydrogen in a liquid reaction medium, which comprises(a) filling a reactor with a liquid reaction medium containing a catalyst,(b) dissolving oxygen and hydrogen in the liquid reaction medium by contacting the gases
5102673 Oxygen absorbent April 7, 1992
There are disclosed an oxygen absorbent comprising boron or a reducing boron compound, an alkaline substance and a carrier, an oxygen absorbent parcel formed by enclosing said oxygen absorbent in a permeable packaging parcel, a food package and a package of a metallic or electronic produ
5089452 Method for preparing catalyst precursor for methanol synthesis February 18, 1992
A method for preparing a catalyst precursor for methanol synthesis using copper sulfate recovered from low-cost copper etching waste solution as the source of copper, which comprises using recovered copper sulfate containing the mother liquor in the amount of 10% by weight or less, and
5087750 Process for producing alpha-hydroxyisobutyric acid amide February 11, 1992
A process for producing .alpha.-hydroisobutyric acid amide by a hydration reaction of acetonecyanohydrin in the presence of a catalyst containing manganese dioxide as a main component, and also in the presence of an oxidizing agent. In accordance with the process, the service life of the
5087737 Process for producing methyl methacrylate February 11, 1992
Disclosed is a process for producing methyl methacrylate which comprises:(I) a step of reacting prussic acid and acetone to form acetonecyanhydrin;(II) a step of hydrating the acetonecyanhydrin obtained in the step (I) to form .alpha.-hydroxyisobutyric acid amide;(III) a step of dehydrating the
5087736 Process for producing methyl methacrylate February 11, 1992
Disclosed is a process for producing methyl methacrylate which comprises:(I) a step of reacting acetone and prussic acid to form acetonecyanhydrin;(II) a step of hydrating the acetonecyanhydrin obtained in the step (I) to form .alpha.-hydroxyisobutyric acid amide;(III) a step of reacting the .al
5086112 Solvent-resistant polyphenylene ether resin composition February 4, 1992
A polyphenylene ether resin composition having improved solvent resistance comprising (A) a modified polyphenylene ether obtained by modifying a polyphenylene ether with a modifier such as maleic anhydride and (B) a modified polyolefin obtained by modifying a polyolefin with both a m
5078477 Ferroelectric liquid crystal cell January 7, 1992
A ferroelectric liquid crystal cell comprising a ferroelectric liquid crystal having an antiferro-electric phase (S.sub.m C.sub.A.sup.*) or its composition and a pair of substrates having electrodes and holding said liquid crystal or its composition therebetween, characterized in that th
5076864 Process for producing multilayer printed wiring board December 31, 1991
A process for producing a multilayer printed wiring board, characterized in that copper surface of internal layer(s) is chemically oxidized, thereby forming a brown or black, oxidized copper surface on the internal layer board; and said oxidized copper surface of said internal layer boar
5075493 Process for preparing .alpha., .beta.-unsaturated carboxylic acid ester December 24, 1991
A process for producing .alpha., .beta.-unsaturated carboxylic acid ester which comprises catalytically reacting .alpha.-hydroxycarboxylic acid ester with crystalline aluminosilicate catalyst, and then catalytic reacting the resulting reaction product with solid acid catalyst.According t
5075476 Process for production of sulfonium compounds and novel methylthiphenol derivatives December 24, 1991
Disclosed is process for producing a sulfonium compound of the general formula (III), comprising reacting alkylthiophenol derivative of the general formula (I) and dialkyl sulfate of the general formula (II) in the presence of at least one inorganic compound selected from the group c
5070059 Catalyst for producing aromatic nitriles December 3, 1991
The present invention relates to a catalyst which comprises a vanadium oxide, a chromium oxide, a molybdenum oxide and a boron oxide supported on a silica carrier. This catalyst is suitable for use in the production of aromatic nitriles from alkyl-substituted aromatic compound by the
5068480 Process for producing 2,6-dimethylnaphthalene November 26, 1991
A process for producing 2,6-dimethylnaphthalene, which comprises subjecting 2-methyl-1-(p-tolyl)-butene, 2-methyl-1-(p-tolyl)-butane or a mixture of these to cyclization and dehydrogenation in the presence of a catalyst comprising lead oxide and/or indium oxide and aluminum oxide.
5068410 Process for producing highly pure 2,6-naphthalene dicarboxylic acid November 26, 1991
A process for producing highly pure 2,6-napthalene dicarboxylic acid, characterized by hydrolyzing 2,6-dimethyl naphthalene dicarboxylate more than 99% pure in an aqueous solution by using an aromatic poly-carboxylic acid as a catalyst is disclosed.
5068399 Process for preparing unsaturated carboxylic acid ester November 26, 1991
Disclosed is a process for preparing, .alpha., .beta.-unsaturated carboxylic acid ester from .alpha.-hydroxycarboxylic acid ester, a .alpha.-alkoxycarboxylic acid ester or .beta.-alkoxycarboxylic acid ester as a starting material by a vapor-phase catalytic reaction in the presence of
5068136 Five-layered container November 26, 1991
A five-layered container formed by biaxial orientation blow molding of an injection-molded, five layered-structured parison, wherein central, innermost and outermost layers comprise a resin A, two intermediate layers between the innermost layer and the central layer and between the o
5063250 Process for the production of methanol November 5, 1991
This invention provides a process for the production of methanol which comprises steps of(a) reacting hydrocarbon with steam to generate synthesis gas composed of hydrogen, carbon monoxide and carbon dioxide as main components,(b) reacting the synthesis gas on a methanol synthesis catalyst t
5061711 Method of curing liver diseases by using pyrrolo quinoline quinone triesters and novel pyrrolo q October 29, 1991
Disclosed is a method of curing liver diseases by administration of pyrrolo quinoline quinon triesters (PQQ triesters). The PQQ triesters include PQQ triallyl ester and PQQ tribenzyl ester which are novel. The PQQ triesters being ester form, they have no toxicity and can be orally admins
5061675 Process for producing a denaturated manganese dioxide catalyst for the hydration reaction of cya October 29, 1991
A process for producing a denatured manganese dioxide for the hydration reaction of cyanohydrins comprising reacting an aqueous permanganate salt solution and an aqueous manganese (II) compound in an acidic aqueous solution at a temperature of 70.degree. C. to 130.degree. C. is disclosed
5053535 Process for producing .alpha.-hydroxyisobutyric acid October 1, 1991
A process for producing an .alpha.-hydroxyisobutyric acid which comprises hydrolyzing .alpha.-hydroxyisobutyric acid ester in the presence of an organic sulfonic acid catalyst, using an .alpha.-hydroxyisobutyric acid ester as the starting material.According to said process, .alpha.-hydro
5045627 Melt-processable copolyester September 3, 1991
A melt-processable copolyester consisting essentially of:a structural unit (I) of formula (1-1) ##STR1## and formula (1-2) ##STR2## wherein the amount of the species of formula (1-2) is 5 to 95 mole % of the structural unit (I),a structural unit (II) of formula (2)wherein X is a
5043351 Hygroscopic insect-proofing composition August 27, 1991
Disclosed is a hygroscopic insect-proofing composition, and more particularly a trioxane-containing composition which is useful in insect-proofing and damp proofing of clothing.
5034492 Sulfur-containing aromatic vinyl compound, crosslinked polymer articles and lens July 23, 1991
A novel sulfur-containing aromatic vinyl compound represented by the following general formula (I) ##STR1## wherein R.sub.1 represents an alkylene group having 1 to 3 carbon atoms and R.sub.2 represents an alkylene group having 2 to 8 carbon atoms, and the two bonds in the benzen
5028656 Resin composition, and molded articles therefrom July 2, 1991
A resin composition consisting essentially of(A) a polyphenylene ether having added thereto an unsaturated carboxylic acid having 3 to 10 carbon atoms or an anhydride thereof (component A),(B) a polyphenylene sulfide (component B), and(C) a polyisocyanate compound (compound C), the weight ratio
5026875 Stability-improved trioxane composition June 25, 1991
Disclosed is a composition comprising 1,3,5-trioxane, and more particularly a stability-improved trioxane composition.
5026764 Resin composition based on modified polyphenylene ether and polyphenylene sulfide, and molded ar June 25, 1991
A resin composition consisting essentially of(A) a polyphenylene ether having added thereto an unsaturated carboxylic acid having 3 to 10 carbon atoms or an anhydride thereof (component A),(B) a polyphenylene sulfide (component B), and(C) a polyisocyanate compound (component C),the weight ratio
5023390 Process for production of 2,6-dimethylnaphthalene June 11, 1991
A process for production of 2,6-dimethylnaphthalene is disclosed; comprising the steps: (1) an acylation step where 2,4-dimethylisobutyrophenone is produced from m-xylene, propylene and carbon monoxide: (2) a hydrogenation step where the carbonyl group of the above 2,4-dimethylisobut
5021197 Process for production of sulfonium compounds June 4, 1991
A process for producing a sulfonium compound of the formula (III) ##STR1## which process comprises reacting a p-dialkylsulfoniophenol of the formula (I) ##STR2## and a carbonyl halogenide compound of the formula (II) ##STR3## in the presence of a secondary amine having a
5011873 Molding polyamide resin composition April 30, 1991
A molding polyamide resin composition comprising(A) 50 to 99 parts by weight of a polyamide resin derived from xylylenediamine as a main diamine component and an alpha,omega-straight chain aliphatic dicarboxylic acid as a main dicarboxylic acid component,(B) 1 to 50 parts by weight of polyhe
5008479 Process for production of 2,6-dimethylnaphthalene April 16, 1991
A process for production of 2,6-dimethylnaphthalene is disclosed, comprising the steps: (1) an acylation step where p-tolyl sec-butyl ketone is produced from toluene, n-butene and carbon monoxide: (2) a hydrogenation step where the carbonyl group of the p-tolyl sec-butyl ketone is hy
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