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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
5320821 Method for producing hydrogen peroxide June 14, 1994
A method for producing a high concentration of hydrogen peroxide by reacting oxygen and hydrogen directly in a neutral reaction medium that contains a promoter comprising a halogen containing compound, which halogen containing compound contains at least one halogen other than fluorin
5314740 Base board for printed circuit board May 24, 1994
A base board for a printed circuit board panel which permits easy inspection of a printed circuit by means of a fluorescence-applied circuit pattern inspection machine used for the inspection of printed circuit patterns and which is not altered in the properties as a printed circuit
5312966 Process for production of carboxylic acid ester and formamide May 17, 1994
There is disclosed a process for efficiently producing a carboxylic acid ester and formamide by reacting a carboxylic acid amide with a formic acid ester or with an alcohol and carbon monoxide in the presence of a strongly basic anion-exchange resin. By the use of the strongly basic
5312557 Stabilizing sodium parcabonate by separately spraying coating solutions of boric acid and a sili May 17, 1994
A bleaching detergent composition is disclosed which contains granulated sodium percarbonate incorporated therein formed by separately spraying an aqueous boric acid solution and an aqueous alkali metal silicate solution onto sodium percarbonate particles kept in a fluidized state to coa
5310944 Process for producing carboxylated compound May 10, 1994
A process for producing a carboxylated compound, which comprises reacting a carbonyl compound with hydrogen peroxide in the presence of an organo-arsenic acid of the formula (1), ##STR1## wherein: R.sup.1 is a C.sub.1 -C.sub.12 alkyl group which may be substituted or an aryl grou
5308574 Method of injection molding with air assist for making a handle-shaped molded article May 3, 1994
A method for producing a handle-shaped molded article (1) having a thick grip portion (2) and at least one thick fitting portion (3) by injection molding using an injection molding apparatus (10) equipped with a mold having a cavity (60), a resin gate (46) provided in a portion (62) wher
5306844 Tartaric acid amide derivative and method of producing the same April 26, 1994
A d- or l-tartaric acid amide derivative serving as a host compound and a method of producing the amide derivative which combines with a guest compound to form a clathrate compound and which is expressed by the following Formula (A) or (B): ##STR1##
5306772 Polyacetal resin composition and its molded article April 26, 1994
A polyacetal resin composition produced by melt-kneading polyacetal, polyfluorovinylidene and optionally, an organic lubricant at a temperature higher than the melting point of each of the polyacetal and the polyfluorovinylidene; and a molded article formed from the above polyacetal
5305948 Method of bonding a metal by solder April 26, 1994
The solder bonding is conducted by applying a postflux, which contains halogen compounds in the ratio of 0.2% or less as the amount of halogen, over a metal surface, which is the portion to be bonded by solder, of a member including metal accommodated in a gas-impermeable container in a
5302311 Cleaning solution of semiconductor substrate April 12, 1994
In cleaning a semiconductor substrate with a basic aqueous solution of hydrogen peroxide, it is an object to prevent metal impurities adhering to the substrate surface. A cleaning solution of a semiconductor substrate which comprises a basic aqueous solution of a hydrogen peroxide contai
5298559 Multi-layered polymers March 29, 1994
A multi-layered polymer having (a) a core layer of an aromatic vinyl polymer, (b) an intermediate layer of a butadienic rubbery polymer and (c) an outer layer of an aromatic vinyl glassy polymer, the amount of the components (a), (b) and (c) being 12 to 42 weight %, 48 to 78 weight % and
5296076 Apparatus for applying tape and method therefor March 22, 1994
An apparatus and a method for applying a tape on a belt-like member which is being fed continuously are disclosed in which a new tape loaded as a spare is delivered when the tape is depleted so as to continue the operation of applying the tape, so that the tape can be continuously stuck
5292824 Process for producing a polyacetal resin composition March 8, 1994
There is disclosed a process for producing a polyacetal resin composition, which comprises mixing (A) a polyacetal resin, (B) a thermoplastic polyurethane elastomer and (B) a polyhydric alcohol having at least three hydroxyl groups in the molecule, in molten state with shear, at a te
5292496 Process for the preparation of hydrogen peroxide March 8, 1994
Oxygen and hydrogen are catalytically reacted in an acidic reaction medium in the presence of a platinum group metal catalyst to prepare hydrogen peroxide using as a carrier for the platinum group metal catalyst a composite oxide containing cerium. The process need not halogen ions in
5288801 Polycarbonate resin composition February 22, 1994
A polycarbonate resin composition comprising (a) an aromatic polycarbonate resin, (b) a rubber-polyester block copolymer comprising an aliphatic diene-based rubber having at one or both ends thereof a polyester structural unit formed by ring-opening polymerization of an aliphatic lac
5286407 Oxygen absorbent composition and method of preserving article with same February 15, 1994
An oxygen absorbent composition containing a linear hydrocarbon polymer having one or more unsaturated groups or a mixture of a linear hydrocarbon polymer having one or more unsaturated groups with an unsaturated fatty acid compound and an oxidation promoter as essential components and
5278321 Process for simultaneously producing lactone and aromatic carboxylic acid January 11, 1994
A process for simultaneously producing a lactone and an aromatic carboxylic acid, which comprises oxidizing a cyclic ketone and an aromatic aldehyde wherein: the cyclic ketone/aromatic aldehyde molar ratio is set at 1.1:1 to 20:1 and the throughput of the aromatic aldehyde per a unit rea
5276230 Process for production of 2,6-dimethylnaphthalene January 4, 1994
There is disclosed a process for efficiently producing 2,6-dimethylnaphthalene used for the production of polyethylene naphthalate which comprises subjecting 2-methyl-1-(p-tolyl)butene and/or 2-methyl-1-(p-tolyl)butane as a starting raw material to cyclization dehydrogenation reactio
5275757 Liquid crystal compounds and liquid crystal display devices January 4, 1994
Novel anti-ferroelectric liquid crystal compounds represented by the following general formula (I) and a liquid crystal display element wherein such a compound is used. ##STR1## Ph represents a phenylene group, R represents a straight-chain alkyl group having 6 to 10 carbon atoms
5268219 Polyamide resin composition and film therefrom December 7, 1993
A polyamide resin composition obtained by melting and kneading(A) a first polyamide containing not less than 90 mol %, based on the total recurring units, of a m-xylylene adipamide unit of the formula, ##STR1## and (B) a second polyamide showing a semicrystallization time of not more
5266385 Printed circuit comprising novel compounds as fluorescence means to control circuit quality November 30, 1993
A base board for a printed circuit board having a printed circuit formed from a copper foil on an insulating layer, the insulating layer containing a compound of the formula (1) or a compound of the formula (2). ##STR1##
5264150 Optically active alcohol, process for producing same and liquid crystal compound using same November 23, 1993
A liquid crystal compound represented by formula (II) ##STR1## wherein R denotes a linear alkyl group having 6 to 14 carbon atoms, X denotes a single bond or an oxygen atom, K and L are independently 1 or 2, m is an integer of 5 to 7, n is an integer of 1 to 4, and C* denotes an
5254769 Method of isomerization of dimethylnaphthalenes October 19, 1993
Dimethylnaphthalenes are isomerized into 2,6-dimethylnaphthalene by utilizing hydrogen fluoride as a catalyst and straight chain saturated aliphatic hydrocarbons having carbon atoms in the range from 5 to 12 as the solvent. Isomerization to other undesirable isomers such as 2,7-dimet
5254768 Process for producing 3,3',4,4'-tetramethyldiphenylmethane October 19, 1993
There is provided a process for producing 3,3',4,4'-tetramethyldiphenylmethane which comprises subjecting tetramethyldiphenylmethane containing at least one of 2,3,3',4'-tetramethyldiphenylmethane and 2,2',3,3'-tetramethyldiphenylmethane to isomerization reaction in the presence
5250729 Process for preparing unsaturated carboxylic acid or ester thereof October 5, 1993
A process for preparing an .alpha., .beta.-unsaturated carboxylic acid and/or an .alpha., .beta.-unsaturated carboxylic acid ester from at least one ester selected from .alpha.-hydroxycarboxylic acid ester, .alpha.-alkoxycarboxylic acid ester and .beta.-alkoxycarboxylic acid ester as
5250101 Process for the production of fine powder October 5, 1993
A process for the production of a fine powder suitable for use in the fields of electronic materials, catalysts, powder metallurgy, pigments and adsorbens. The powder has a primary particle diameter of not more than 0.5 .mu.m, an average secondary aggregate particle diameter of not more
5244621 Process for shaping ceramic composites September 14, 1993
There are disclosed in process for shaping ceramic composites which comprises shaping a sintered silicon nitride-silicon carbide composite material having a microstructure formed predominantly of equiaxed grains with an average grain size of 2 .mu.m or below and a silicon carbide con
5241149 Food packing body for heat and microwave treatment August 31, 1993
Food is contained in a container made from packing materials with an oxygen permeability of 200 ml/m.sup.2. 24Hr.multidot.atm, an oxygen absorber which has a microwave-proof layer with film thickness of 5-20 .mu.m on at least one side and also air-permeable packing material on at least o
5238760 Molded article for negative electrode, method of producing the same and lithium secondary batter August 24, 1993
A mixture of carbon powder and a carbonaceous binder is molded and pyrolyzed in an atmosphere of nitrogen to form a carbon molded article for a negative electrode. The properties of the carbon molded article are: an interfacial distance (d002) within a range from 3.38 .ANG. to 3.56 .ANG.
5237092 Process for concurrently producing aryl formate and aromatic carboxylic acid August 17, 1993
A process for efficiently producing aryl formate and aromatic carboxylic acid from aldehyde, which comprises oxidizing an aromatic aldehyde with an oxygen-containing gas in the presence of a volatile solvent up to a reaction ratio of 40 to 70 mol % to convert the aromatic aldehyde to a
5236692 Method for producing hydrogen peroxide August 17, 1993
A method for producing a high concentration of hydrogen peroxide by reacting oxygen and hydrogen directly in a reaction medium containing a promoter such as a halogen containing compound using a platinum group metal catalyst supported on a solid acid carrier or a solid super acid car
5230927 Method for metal-plating resin molded articles and metal-plated resin molded articles July 27, 1993
A process for metal plating a resin molded article molded from a resin composition containing as main components, a polyphenylene sulfide resin and a glass-reinforcing agent, which comprises, before the metal plating,(1) treating the resin molded article by immersion in a mixed liquid of
5225594 Process for producing methacrylic acid July 6, 1993
A process for producing methacrylic acid which comprises: (I) producing acetonecyanohydrin from prussic acid and acetone; (II) hydrating the acetonecyanohydrin obtained in step (I) to form .alpha.-hydroxyisobutyric acid amide; (III) reacting the .alpha.-hydroxyisobutyric acid amide o
5221694 N-benzyl-N-phenoxyethylamines and agricultural and horticultural bactericides June 22, 1993
Disclosed is an N-benzyl-N-phenoxyethylamine selected from the group consisting of the N-benzyl-N-phenoxyethylamine represented by the following formula (I): ##STR1## and an agriculturally acceptable acid addition salt represented by the following formula (II): ##STR2## w
5219549 Bleaching detergent composition June 15, 1993
A bleaching detergent composition is disclosed which contains granulated sodium percarbonate incorporated therein formed by separately spraying an aqueous boric acid solution and an aqueous alkali metal silicate solution onto sodium percarbonate particles kept in a fluidized state to coa
5208383 Process for producing aromatic acylation product May 4, 1993
A process for producing an aromatic acylation product from an aromatic compound, an olefin and carbon monoxide, which comprises the steps of:(a) reacting an olefin with carbon monoxide in the presence of hydrogen fluoride and boron trifluoride at a pressure of not more than 100 kg/cm.sup
5205888 Process for producing carbon fiber reinforced carbon materials April 27, 1993
A process for making carbon fiber reinforced materials which not only have desirable qualities which include high strength, high heat resistance, chemical resistance, wear resistance and lightweightness but also which are produced in a short time and at low cost. The process includes the
5200332 Process for preparation of copolymer April 6, 1993
Disclosed is a process for the preparation of a copolymer, which comprises propagating cells of a bacterium having a capacity of producing poly-3-hydroxybutyrate mainly at a former stage, synthesizing and accumulating in the cells a copolymer comprising D-3-hydroxybutyrate and D-3-hy
5196572 Process for producing xylylene diisocyanate March 23, 1993
Xylylene diisocyanate is produced in higher space-time yield with higher selectivity by thermal decomposition of xylylene dicarbamate as an urethane compound, i.e. by subjecting the urethane compound to reactive distillation with a thermal decomposition catalyst of at least one of me
5194668 Process for production of carboxylic acid esters and formamide March 16, 1993
Carboxylic acid esters and formamide are efficiently obtained by reacting carboxylic acid amides and formic acid esters, or by reacting carboxylic acid amides, alcohols and carbon monoxide in the presence of a dehydrated condensate of carboxylic acid amide with an alkali metal hydroxide
5191006 Oxymethylene copolymer composition March 2, 1993
An oxymethylene copolymer composition which comprises an intimate mixture containing:(A) 100 parts by weight of an oxymethylene copolymer,(B) 0.01 to 2 parts by weight of an ester composed of a polyhydric alcohol having 2 to 10 carbon atoms and a higher fatty acid having 22 to 32 carbon
5187311 Methylthiophenol derivatives and p-methylthiophenyl chloroformates and processes for producing t February 16, 1993
Novel methylthiophenol derivatives of the formula (I') and of the formula (IV) and processes for producing said derivatives ##STR1## wherein R is a tert-butyloxy group, a tert-amyloxy group, a p-methoxybenzyloxy group, a 2-(trimethylsilyl)ethoxy group, a 1-adamantyloxy group, a b
5187218 Acetal resin composition containing a terminal-etherified polyalkylene glycol February 16, 1993
An acetal resin composition comprising:(A) 100 parts by weight of an acetal resin,(B) 0.01 to 5 parts by weight of a terminal-etherified polyalkylene glycol of the formula (I)wherein R.sup.1 is a hydrogen atom, an aliphatic hydrocarbon group having 1 to 7 carbon atoms, an aryl group or an ar
5186880 Process for producing cyanate ester resin cure product February 16, 1993
The invention is a process for making a cyanate ester resin cured product by (1) adding organic metal compound (a) and triethanol amine(b) to a cyanate resin composition which is flowable at a temperature of not more than 50.degree. C. comprising as its main component polyfunctional cyan
5185185 Process of pretreatment of metal-plating resin molded articles February 9, 1993
A process of pretreatment of metal-plating a resin molded article molded from a resin composition containing as main components a polyphenylene sulfide (PPS) resin, a glass-reinforcing agent and optionally one or more other thermoplastic resins comprises(1) treating the resin molded arti
5183539 Method of purifying crude glycidyl (meth)acrylate February 2, 1993
A method of purifying a crude glycidyl (meth)acrylate, by (1) subjecting a crude glycidyl (meth)acrylate containing epichlorohydrin and other chlorine compounds as impurities to a stripping treatment with a mixed gas containing oxygen gas in the presence of a quaternary ammonium salt, an
5182392 Process for producing bistrimellitic imide January 26, 1993
A process for producing a bistrimellitic imide of the formula (2) ##STR1## wherein X is an aliphatic group having at least 2 carbon atoms, an alicyclic group or an aromatic group,which comprises reacting a trimellitic anhydride with a diamine of the formula (1)wherein X is as defined
5180573 Method for producing hydrogen peroxide January 19, 1993
This invention provides a method for high efficiency, high concentration production of hydrogen peroxide wherein oxygen and hydrogen are reacted in the reaction medium in the presence of a catalyst comprising a metallic or carrier supported platinum group metal catalyst onto which an org
5175366 Process for producing a denaturated manganese dioxide catalyst for the hydration reaction of cya December 29, 1992
A process for preparing an amide by hydrating a cyanohydrin with a denatured manganese dioxide catalyst. The catalyst is prepared by reacting an aqueous permanganate solution and an aqueous manganese (II) compound solution in an acidic aqueous solution at a temperature of 70.degree. C.
5175078 Positive type photoresist developer December 29, 1992
A positive type photoresist developer which comprises an aqueous solution of quaternary ammonium hydroxide represented by the general formula; ##STR1## (wherein all the symbols are as defined in the appended claims) and hydrazine or hydrazine and a nonionic surfactant is disclosed.Th
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