Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Mitsubishi Gas Chemical Company, Inc. Patents
Assignee:
Mitsubishi Gas Chemical Company, Inc.
Address:
Tokyo, JP
No. of patents:
1113
Patents:


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next










Patent Number Title Of Patent Date Issued
5587349 Process for preparing silica-titania catalyst December 24, 1996
A process for preparing a silica-titania catalyst by adding an acidic solution containing a silicon compound such as sodium silicate and a titanium compound such as titanium sulfate dissolved therein to a solution of a compound such as ammonium bicarbonate to bring about co-precipita
5587106 Liquid crystal display devices and liquid crystal substances therefor December 24, 1996
Anti-ferroelectric liquid crystal substances which are represented by the formula (1): ##STR1## wherein R is a straight chain alkyl group having 6 to 10 carbon atoms,X is hydrogen or fluorine atom,Z is --CH.sub.3, --CF.sub.3 or --C.sub.2 H.sub.5, andC** stands for an asymmetric carbon at
5582916 Polyvinyl alcohol film, process for the production thereof and laminate December 10, 1996
A polyvinyl alcohol film containing at least one of complexes of hydroxybenzophenone compounds having specific structure, and at least one basic compound selected from the group consisting of (i) a hydroxide, carbonate or bicarbonate of an alkali metal, (ii) carbonate or bicarbonate
5576415 Method for drying polyamide and method for solid-phase polymerization of polyamide November 19, 1996
There are disclosed a method for drying and a method for solid-phase polymerizing a crystallizable polyamide being in an amorphous state which comprises regulating the moisture concentration in the polyamide at its glass transition temperature to at least 0.15% by weight as determined by
5576086 Deformation-free molded article November 19, 1996
A molded article is formed of a thermoplastic or thermosetting resin and has two planes joining each other in a junction portion; at least one of the two planes has an opening portion or a thin wall portion in the vicinity of the junction portion in order to decrease warpage of the m
5570442 Design and manufacture of an optimized waveguide-type multiple branched star coupler October 29, 1996
The present invention is an optical device including an optical circuit in which a plurality of branched optical waveguides are connected to a light receiving side and a light ejecting side of a main optical waveguide which mixes the entering light. The branched optical waveguides includ
5569700 Thermoplastic resin composition for profile extrusion October 29, 1996
A resin composition comprising (a) a thermoplastic aromatic polycarbonate resin, (b) a graft co-polymer obtained by copolymerizing ethylene-.alpha.-olefin-diene copolymer and a monomer mixture comprising as main components an aromatic vinyl compound and vinyl cyanide compound as a ma
5569566 Photoreceptor for electrophotography with low free chlorine content polycarbonate resin in organ October 29, 1996
A photoreceptor for electrophotography which comprises a conductive substrate and a photoconductive layer on the conductive substrate, a polycarbonate resin containing free chlorine of 2 ppm or below being contained in the photoconductive layer. No minute black spots generate and an
5567574 Removing agent composition for photoresist and method of removing October 22, 1996
A removing agent composition for a photoresist is disclosed which comprises 5 to 50% by weight of an alkanolamine, an alkoxyalkylamine or an alkoxyalkanolamine, 1 to 30% by weight of a glycol monoalkyl ether, 0.5 to 15% by weight of a sugar or a sugaralcohol, 0.01 to 10% by weight of a
5565131 Bismuth-substituted rare earth iron garnet single crystal October 15, 1996
A bismuth-substituted rare earth iron garnet single crystal film is represented by a general equation Tb.sub.x Lu.sub.y Bi.sub.3-x-y Fe.sub.5-z Al.sub.z O.sub.12 (where 0.09.ltoreq.y/x.ltoreq.0.23, 1.40.ltoreq.x+y.ltoreq.1.70, 0.20.ltoreq.z.ltoreq.0.38) grown on a non-magnetic garnet
5545027 Gas-feeding device for injection molding August 13, 1996
A gas-feeding device as follows:(A) a gas-feeding nozzle and(B) gas-feeding nozzle shifting device for putting a top portion of the gas-feeding nozzle in forward and backward movement in a guide portion which is provided in a mold and communicates with a cavity and an outside of the mold
5538832 Developing solution for producing printed circuit boards and a process for producing printed cir July 23, 1996
A developing solution comprising a specific amount of a quaternary ammonium hydroxide represented by the general formula [(R.sup.1).sub.3 N--R].sup.+ .multidot.OH.sup.- (R indicates an alkyl group having 1 to 3 carbon atoms or a hydroxy-substituted alkyl group having 1 to 3 carbon atoms
5538832 Developing solution for producing printed circuit boards and a process for producing printed cir July 23, 1996
A developing solution comprising a specific amount of a quaternary ammonium hydroxide represented by the general formula [(R.sup.1).sub.3 N--R].sup.+ .multidot.OH.sup.- (R indicates an alkyl group having 1 to 3 carbon atoms or a hydroxy-substituted alkyl group having 1 to 3 carbon atoms
5535046 Faraday rotator July 9, 1996
A Faraday rotator in which a portion of a rare-earth iron garnet single crystal film is exposed to a localized magnetic field to control hysteresis. In one embodiment, the field is applied by a permanent magnet positioned on a part of the film. As a result, it is possible to fabricate
5534238 Method for the preparation of purified aqueous hydrogen peroxide solution July 9, 1996
An efficient method is proposed for the preparation of a highly purified aqueous hydrogen peroxide solution, which can be used even in a semiconductor process, from a crude aqueous solution containing metallic and inorganic impurities. The method comprises the steps of: (a) acidifyin
5534190 Anti-ferroelectric liquid crystal composition and liquid crystal display July 9, 1996
An anti-ferroelectric liquid crystal composition consisting essentially of an anti-ferroelectric liquid crystal (A) and a ferrielectric liquid crystal (B) shows a low threshold voltage so that the driving voltage can be decreased, and the composition can give a liquid crystal display dev
5531945 Process for the production of base board for printed wiring July 2, 1996
A process is provided for the production of a base board for printed wiring. The process involves the steps of wrapping a block inorganic continuous porous material with a cloth, impregnating the wrapped block inorganic continuous porous material with a thermosetting resin under redu
5530061 Process for producing impact-resistant polyacetal resin composition June 25, 1996
A process for producing an impact-resistant polyacetal resin composition, which comprises a first step of mixing with shear a polyacetal resin (A), a thermoplastic polyurethane (B) and a polyhydric alcohol (C) having at least three hydroxyl groups in the molecule at a temperature of
5527977 Process for producing monoalkenyl aromatic hydrocarbon compound June 18, 1996
Their is disclosed a process for producing a monoalkenyl aromatic hydrocarbon compound (e.g. 5-(o-tolyl)-2-pentene) which comprises the steps of alkenylating a side chain of an aromatic hydrocarbon compound having at lease one hydrogen atom bonded to .alpha.-position of the side chai
5527927 Process for producing glycidyl acrylate or glycidyl methacrylate June 18, 1996
There are disclosed a process for producing glycidyl acrylate or glycidyl methacrylate by the transesterification of glycidol and methyl methacrylate, etc. which process comprises carrying out the transesterification in the presence of a polymerization inhibitor by using, as a cataly
5512599 Process for the production of methanol April 30, 1996
A process for the production of methanol, which exhibits high energy efficiency and permits the production of methanol with apparatus of which the production capacity can be increased, the process comprising a primary reforming step of catalytically reacting a hydrocarbon with steam, a
5512193 Low saturated magnetic field bismuth-substituted rare earth iron garnet single crystal and its u April 30, 1996
A bismuth-substituted rare earth iron garnet single crystal grown on a non-magnetic substrate having a lattice constant of 12.490 .ANG.-12.510 .ANG. by the liquid phase epitaxial method, and represented by a general equation:where R denotes at least one element selected from the group co
5511358 Securing small bags to belt-like member April 30, 1996
An apparatus for successively securing a plurality of small bags to a first belt-like member via an adhesive layer is provided including a transportation path for transporting the plurality of small bags, one by one, towards said first belt-like member and an attaching apparatus for
5510166 Inhibitor parcel and method for preserving electronic devices or electronic parts April 23, 1996
Disclosed are an inhibitor parcel comprising (a) a composition comprising an unsaturated fatty acid compound as its main ingredient and (b) a permeable diffusing-parcelling material prepared by laminating and bonding an oxygen-permeable resin layer onto one side of a base sheet made of a
5504185 Process for production of polyamides, polyamides produced by said process and polyamide film or April 2, 1996
A process for the production of a polyamide, which comprises polycondensing adipic acid prepared by nitric acid oxidation and containing 1 ppm by weight or less of a free mineral acid as an impurity with a diamine represented by formula (1)wherein R denotes a linear or branched alkylene
5502244 Process for producing isocyanates March 26, 1996
Provided is a process for producing isocyanates from carbamic acid esters which comprises thermally decomposing carbamic acid esters in the presence of a catalyst containing at least one compound selected from the group consisting of organic sulfonic acids and alkaline metal salts of org
5497937 Method for bonding a member having metal March 12, 1996
A flux-free method for bonding a member which is at least partially metallic to another member is provided including preserving the at least partially metallic member in a container having a low gas permeability, together with a packet containing a rust-proof composition; and bonding
5495060 Method for isomerizing dimethylnaphthalene February 27, 1996
There is disclosed a method for isomerizing dimethylnaphthalene (DMN) in liquid phase under atmospheric pressure by using a catalyst comprising hydrogen-form mordenite which has a molar ratio of silica to alumina (SiO.sub.2 /Al.sub.2 O.sub.3 ratio) of at least 100 and is molded by in
5489702 Process for the production of dialkyl carbonate February 6, 1996
A process for the production of a dialkyl carbonate comprisinga first step of reacting an alkylene glycol, or an alkanediol, with urea in the presence of a catalyst to form an alkylene carbonate or a six-membered cyclic carbonate, anda second step of reacting the alkylene carbonate or the si
5482651 Dioxane type liquid crystal substance January 9, 1996
An antiferroelectric liquid crystal substance represented by the following general formula (1) ##STR1## wherein R represents a straight-chain alkyl group of 6-10 carbon atoms; X represents ##STR2## when X is ##STR3## Y is any of CH.sub.3, CF.sub.3 and C.sub.2 H.sub.5,
5481055 Method for isomerizing dimethylnaphthalene January 2, 1996
A method for isomerizing dimethylnaphthalene (DMN) in the gaseous phase in the presence of a solvent comprising an aromatic hydrocarbon having a boiling point of at most 150.degree. C., e.g., benzene, under atmospheric pressure by using a catalyst comprising a hydrogen-form of mordenite.
5480269 Method of drilling a hole for printed wiring board January 2, 1996
A method of drilling a through-hole for inter-surface conduction in a laminate for a printed wiring board, in which the heat generation in a drill bit can be inhibited in drilling holes, quality holes can be highly efficiently made in the presence, on the laminate surface, of a novel
5474853 Resin composition, molded article and lamp reflector December 12, 1995
A resin composition comprising predetermined amounts of a specific polyamide resin (A), a modified polyphenylene ether resin (B), a fibrous inorganic filler (C) having an average fiber-diameter of 10 .mu.m or less, a powdery inorganic filler (D) having an average particle diameter of 10
5468351 Apparatus for recovering fresh water and apparatus for concentrating liquid November 21, 1995
An apparatus for recovering fresh water or for concentrating a liquid has a structure formed of a roof member 10 having a gradient and a base member 14 provided with a liquid reservoir member 18. A cellulose-based film 20 has one surface saponified 2 to 50 .mu.m deep and the other surfac
5463123 Process for producing .alpha.-hydroxyisobutyramide October 31, 1995
There is disclosed a process for producing .alpha.-hydroxyisobutyramide by hydration reaction of acetone cyanohydrin in the presence of a catalyst consisting essentially of manganese dioxide which process comprises pretreating the catalyst with a reducing agent. The above process is
5463095 Process for the production of esters October 31, 1995
A process for the production of esters, comprising allowing an olefin, carbon monoxide and an alcohol to react in the presence of hydrogen fluoride, in which the esters can be produced at high yields at a low temperature for a short period of time, the esters can be easily separated
5457174 Method for preparing polycarbonates by transesterification in a steel reactor October 10, 1995
A process for preparing a polycarbonate which comprises performing a transesterification and a polycondensation reaction with a diarylcarbonate and dihydroxyaryl compound, in a reaction apparatus composed of stainless steel comprising at least 12% by weight of Ni, and at least 22% by wei
5449709 Resin composition for lens based materials September 12, 1995
An antistatic resin composition is herein disclosed which comprises (A) 100 parts by weight of a methyl methacrylate-styrene copolymer resin, (B) 0.3 to 3 parts by weight of a phosphonium sulfonate, and if necessary, (C) 0.3 to 3 parts by weight of an aliphatic or an aromatic ester havin
5448667 Waveguide type optical device with optical receptacles September 5, 1995
Optical device to optically connect an outside optical fiber with an optical waveguide through the connecting medium of an optical fiber with ferrule located within the hole of the optical receptacle that is fixed at the optical waveguide. The optical waveguide and the outside optical
5446226 Process for producing dimethylnaphthalene August 29, 1995
A process for efficiently producing dimethylnaphthalene by a single-step reaction which comprises cyclizing dehydrogenating 5-tolyl-penta-2-ene in the presence of a catalyst comprising in combination (a) a solid acid such as crystalline aluminosilicate, silica-alumina or alumina; (b) a n
5444172 Process for producing a monoalkenyl aromatic hydrocarbon compound August 22, 1995
There is disclosed a process for producing a monoalkenylbenzene which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at .alpha.-position of the side chain (such as xylene) with a conjugated diene having 4 or 5 carbon atoms
5440004 Method and apparatus for the production of alkylene carbonate August 8, 1995
A method for the production of an alkylene carbonate at high yields and high selectivity by a reaction between an alkylene glycol and urea, the method being capable to preventing the deposition of a white crystal in the reflux condenser used in a conventional method for the production of
5439661 Process for producing hydrogen cyanide August 8, 1995
There is disclosed a process for efficiently producing hydrogen cyanide at a reaction temperature of preferably 250.degree. to 550.degree. C. by a catalytic dehydrative reaction of formamide which comprises employing as a catalyst, a manganese oxide (MnO) and/or a magnesium oxide (MgO) e
5438108 Graft precursor and process for producing grafted aromatic polycarbonate resin August 1, 1995
A grafted aromatic polycarbonate resin is produced by melt-kneading a graft precursor comprising a mixture of 35 to 95% by weight of aromatic polycarbonate resin particles and 65 to 5% by weight of vinylic copolymer containing active oxygen, the vinylic copolymer being present in the
5436381 Process for producing a monoalkenyl aromatic hydrocarbon compound July 25, 1995
There is disclosed a process for producing a monoalkenylbenzene which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at .alpha.-position of the side chain (such as xylene) with a conjugated diene having 4 or 5 carbon atoms
5436374 Process for producing 4-formyl-4'-methylbiphenyl from biphenyl July 25, 1995
A process for producing a 4-formyl-4'-methylbiphenyl from a biphenyl which comprises conducting the carbonylation of the biphenyl with carbon monoxide in the presence of a HF-BF.sub.3 catalyst in a carbonylation reactor to obtain the resulting reaction product solution containing a 4
5436364 Process for producing dimethyl 2,6-naphthalene-dicarboxylate July 25, 1995
A process for producing dimethyl 2,6-naphthalene-dicarboxylate by reacting 2,6-naphthalene-dicarboxylic acid with methanol which comprises effecting the reaction at 200.degree. to 350.degree. C. in the presence of trimethyl trimellitate as an essential solvent and optionally, at least on
5435877 Process for the production of copper-clad laminate July 25, 1995
A process for the production of a copper-clad laminate which is improved in dimensional accuracy and freedom from bow and twist and shows nearly the same values of dimensional accuracy, thermal expansion coefficient and elastic modulus in the length and width directions, the process usin
5432216 Polyacetal resin composition July 11, 1995
A polyacetal resin composition which comprises (A) 100 parts by weight of a polyacetal resin, (B) 0.1 to 1.5 parts by weight of at least one kind selected from the group of light stabilizers represented by the following formula (1) ##STR1## wherein two X's are the same or differe
5426244 Method for preparing dihydric phenols June 20, 1995
Phenols are reacted with a hydrogen peroxide in the presence of a crystalline titanosilicate catalyst and a cyclic ether, such as dioxane, as a solvent. The method provides especially high para-selectivity compared with conventional methods, and, at the same time, provides high yield
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next

 
 
  Recently Added Patents
Image capture system and method
Plasma panel based radiation detector
Method for fabricating solar cell
Resin composition, prepreg, resin sheet, metal-clad laminate, printed wiring board, multilayer printed wiring board and semiconductor device
Phase-amplitude 3-D stereo encoder and decoder
Dynamic allocation of access channels based on access channel occupancy in a cellular wireless communication system
Method of manufacturing toner
  Randomly Featured Patents
Method and system for routing a task to an employee based on physical and emotional state
Method of framing a wall penetration
Booster cushion for use with a vehicle seat
Electric fork-lift truck and process for manufacturing the same
Push-pull switch operator
Unified powered device (PD) controller and LAN on motherboard (LOM) in a personal computing device (PCD)
Wire harness trough with pivoting guide
Drive for cold pilger rolling stand
Non-solvent bonded plastic well screen assembly
Automatic guided vehicle and automatic guided vehicle control method