Showing papers on "Inorganic compound published in 1997"

Synthetic material with high void volume associated with mesoporous tortuous channels having a narrow size distribution

Abstract: A process for preparing an inorganic porous material, includes the steps of forming a solution of a hydrolyzable inorganic compound with a non-ionic surfactant having organic molecules; inducing growth and condensation of a solid composition comprising an inorganic composition in intimate contact with said organic molecules; and extracting said organic molecules from said inorganic composition so as to provide said inorganic porous material having wall portions defining mesopore-sized channels having a mean diameter of between about 15 Å to about 100 Å and a narrow diameter distribution of less than or equal to about 30 Å, said material having a void volume from said mesopore-sized channels of at least about 0.1 cc/g.

Production of metallic paste and metallic coating

Abstract: PROBLEM TO BE SOLVED: To easily produce metallic paste at a low cost by blending a specified compound and an amino compound as a medium. SOLUTION: As the compound to be used for paste, an organic or inorganic compound of metals blonging to the group 3 to 15 in the Periodic Table which are solids under ordinary pressures is used. Concretely, the metallic salt of organic acid such as palladium formate and the metallic salt of nitric acid such as palladium nitrate are cited. Furthermore, the amino compound as a medium is the one showing viscosity so as to be applied with the organic or inorganic compound and capable of being formed into paste, and ordinarily, a liq. amino compound is used. Concretely, 1,3-diaminopropane or the like are used. Thus, in the case the metallic compound is added with the amino compound, and stirring is executed, stable metallic paste can be obtd. Thus, there is no need of using special substances and methods, and only by stirring the general inexpensive compounds, required pasting is easily made possible.

Electrochemical investigation on the redox chemistry of niobium in LiCl-KCl-KF-Na2O melts

Abstract: The system LiCl-KCl-KF-1 mole percent K 2 NbF 7 (molar ration F/Nb = 8) has been investigated in the temperature range 370 to 725°C by cyclic and square wave voltammetry In the temperature range from 370 to 520°C Nb(V) was reduced to Nb(III) in two reversible steps: Nb(V) → Nb(IV) → Nb(III) At these temperatures subvalent halides of niobium were formed at more negative potentials At temperatures above 660°C metallic niobium was formed during reduction When oxide (molar ratio O 2 /Nb = 11) was introduced in the melt at 725°C only minor changes were observed in the voltammograms It is suggested that oxide addition mainly leads to precipitation of oxide containing compounds

Toner for electrostatic image developing and electric charge controlling agent thereof

Abstract: A toner for developing an electrostatic image is formed from toner particles containing a binder resin, a colorant, and a charge-controlling agent. The charge-controlling agent comprises an aromatic oxycarboxylic acid, a metal compound of the aromatic oxycarboxylic acid, and an inorganic compound formed from an inorganic anion and an inorganic cation. The aromatic oxycarboxylic acid, the metal compound of the aromatic carboxylic acid and the inorganic anion are contained in proportions of A (wt. %), B (wt. %) and C (ppm), respectively, satisfying the following conditions: 1/99

Resin composition capable of being marked by irradiation with laser beam

Abstract: PROBLEM TO BE SOLVED: To obtain a resin composition which can be furnished with a black mark when irradiated with laser beams by including a molybdenum compound and a basic inorganic filler. SOLUTION: The molybdenum compound used may be of any type of compound of molybdenum and is exemplified by an oxide, a hydroxide, a carbide, a fluoride, a silicide, a carbonyl compound or a molybdate. It is used in the form of fine particles having a mean particle diameter of 10 μm or below and is used in an amount of 1040 wt.% based on the resin composition. The basic inorganic filler is an inorganic compound having a pH of 8 or above and is desirably a basic compound containing an alkaline earth metal, more particularly calcium silicate. Its mean particle diameter is desirably 30 μm or below. The amount of its use is 0.1-5 pts.wt. per 1 pt.wt. molybdenum compound. The matrix resin used is a thermoplastic resin or a thermosetting resin.

Use of mixtures with base of pt and of transition metal compounds other than pt for improving the resistance to arc tracking and to arc erosion of silicon elastomers

Abstract: The invention concerns the use as additive for improving properties of resistance to arc tracking and arc erosion: of a mixture A, B or C formed by: concerning mixture A: A1: platinum; and A2: at least an inorganic compound A2.1 of a metal with several degrees of oxidation selected from the group formed by V, Cr, Mn, Fe, Co, Ni, and Cu, in which the metal atom is at a degree of oxidation higher than zero, the least possible (abbreviation: DOX mini); or A3: a combination of at least an inorganic compound A2.1 with at least an inorganic compound A2.2 in which the atom of V, Cr, Mn, Fe, Co, Ni or Cu is at a degree of oxidation higher than DOX mini; concerning mixture B: B1 platinum; and B2: at least an inorganic compound B2.1 of cerium-IV or of lanthanum-III; or B3: a combination of at least an inorganic compound B2.1 with at least an inorganic compound B2.2 of titanium-IV; concerning mixture C3: C1 platinum; and C2 a combination of constituent A2 or A3 with the constituent B2 or B3; in a polyorganosiloxane composition D for obtaining a silicon elastomer, either cross-linkable at room temperature or by heat by reactions of polyaddition in the presence of a metal catalyst, or cross-linkable at high temperature by the action of organic peroxide(s).

Method for washing prefoamed particles

Abstract: A method of washing pre-expanded particles having a substantially water insoluble inorganic compound attached thereto by contacting the pre-expanded particles with an aqueous washing solution of a water soluble compound. The water soluble compound has a solubility with water of at least 1 g/100 g of water and has 1-500 surface bonding functional groups and 1-500 hydrophilic functional groups. At least one of the surface bonding functional groups of the water soluble compound attaches to the water insoluble inorganic compound.

Nonconductive carbonaceous powder and its production

Abstract: PROBLEM TO BE SOLVED: To improve the light blocking properties, blackness and nonconductivity by coating the surface of a carbonaceous powder with a specific organic polymeric compound and an insulated substance. SOLUTION: This nonconductive carbonaceous powder is obtained by adding an organic polymeric compound having iminium ion-producing groups or radical forming groups to a dispersion prepared by dispersing 100 pts.wt. carbonaceous powder in a solvent, carrying out the radical polymerization and coating at least a part of the surface of the carbonaceous powder with 0.1-200 pts.wt. organic polymeric compound having the affinity for the carbonaceous powder and then adsorbing 0.1-300 pts.wt. one or more insulated substances selected from (partial)hydrolyzates of metallic compounds and inorganic compound particles having the affinity for the organic compound on the surface of the carbonaceous powder.

Antimicrobial resin composition

Abstract: PROBLEM TO BE SOLVED: To obtain an antimicrobial resin composition that contains a reaction product of an inorganic divalent-metal compound and polyhydroxy organic compound, as well as a silver-based inorganic antimicrobial agent, has excellent antifungal and antialgal properties and fabricability, and is useful for pipes, films, electric appliances, etc SOLUTION: This antimicrobial resin composition comprises preferably 001-5 ptswt of a reaction product of (A) an inorganic compound of a divalent metal, such as zinc, and a polyhydroxy organic compound, such as ethylene glycol (to 100 ptswt of the antimicrobial resin composition), and preferably 001-10 ptswt of a silver-based inorganic antimicrobial agent (preferably in average particle size of 01-2μm), such as phosphate antimicrobial agent, of formula: Aga Ab M2 (PO4 )3 nH2 O (A is an alkali (or alkaline earth) metal ion, ammonium ion or hydrogen ion; M is tetravalent metal ion; (n) is 0-6; a+mb=1, where (m) is the valence of A) Furthermore, it is preferable that this antimicrobial resin composition contains one or more metal oxides selected from zinc oxide and titanium dioxide

Production of optically active amines

Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound useful as a synthetic intermediate for a medicine, a reagent for optical resolution, by using a catalyst high in generality, activity and selectivity and subjecting an imine compound to a hydrogen transfer type asymmetric reduction. SOLUTION: This optically active amine is produced by subjecting an imine compound to a hydrogen transfer type asymmetric reduction in the presence of a transition metal complex, an optically active nitrogen-containing compound and a hydrogen donative organic or inorganic compound. A compound of formula I (R is an aromatic monocyclic or polycyclic hydrocarbon, an alicyclic hydrocarbon, a cyclic hydrocarbon, etc.; R and R are each H, an aromatic hydrocarbon, etc.) is especially preferable as the imine compound. A compound of formula II is preferable as the optically active amine. A metal complex of a metal of the group VIII (e.g. a compound of formula III) is preferable as the transition metal complex. An optically active amine derivative is preferable as the optically active nitrogen-containing compound. An alcohol compound, formic acid, a formate, a hydrocarbon compound, a heterocyclic compound, hydroquinone or phosphorous acid is preferable as the hydrogen donative organic or inorganic compound.

Plane antenna and antenna unit

Abstract: PROBLEM TO BE SOLVED: To provide a plane antenna small in size, low in price and having stable performance by providing a patch and a ground on the surface and the back plane of a dielectric consisting of inorganic compound-mixed plastic. SOLUTION: The dielectric 1 is formed with an inorganic compound-mixed plastic material containing an inorganic compound >=50wt.%. The plastic dielectric 1 having high dielectric constant is obtained by mixing a filler being inorganic compound of >=50wt.%. The objective plane antenna is manufactured by providing an antenna patch 2 and the ground 3 on the surface side and back plane side of the dielectric 1, respectively.

Inorganic substance having sulfonic acid group on its surface and its production and use

Abstract: PROBLEM TO BE SOLVED: To obtain an surface-coated inorganic substance which has a sulfonic acid group on its surfaces and excels in surface hydrophilicity and dispersibility in water by coating the surface of an inorganic substance with a specific alkoxysilane compound and hydrolyzing or thermally decomposing the alkoxysilane compound. SOLUTION: A surface-coated inorganic compound having a surface coating whose structure is expressed by formula III (X is H, an alkali metal or ammonium), is obtained by forming, on the surface of an inorganic substance such as silica, Ti dioxide or alumina, a coating of an alkoxysilane compound (e.g. formula II) which is shown by formula I (R is a 1-6C alkyl; R is a 1-3C alkyl or phenyl; R is a 1-8C alkyl; Y is phenylene; (m) is 1-3; (n) is O-2; (m+n)=3; (p) is 2 or 3) and has a sulfonic acid ester group at its terminal, and by decomposing the sulfonic acid ester group in the coating by hydrolysis or thermal decomposition. This surface-coated inorganic substance excels in ability to capture basic compounds and metal ions and useful as a base scavenger, etc.

Method for stopping olefin polymerization reaction in emergency

Abstract: PROBLEM TO BE SOLVED: To stop an olefin polymerization reaction in an emergency within a short time by introducing a compound selected from among water, alcohols, molecular oxygen, CO2 and CO in polymerizing an olefin in a vapor phase in the presence of a specified catalyst. SOLUTION: A catalyst is prepared by bringing a compound containing a metal of group IV in the periodic table, a compound containing a metal of group I, II or III in the periodic table, an organic compound having a plurality of conjugated double bonds, a modified organoaluminum compound having an Al-O-Al bond and/or a boron compound and an inorganic compound support and/or a particulate polymer support into contact with each other. An olefin (e.g. ethylene) is (co)polymerized steadily in a vapor phase. When the emergency stop of the polymerization reaction is necessary, a compound selected from among water, alcohols, molecular oxygen, carbon dioxide and carbon monoxide is introduced into the reactor, whereupon the olefin polymerization reaction can be stopped within a short time.

Method for partly forming oxide layer

Abstract: A method for partly forming an oxide layer efficiently without fail on the surface of a substrate, e.g., glass, which comprises forming an oxide layer over a surface of the substrate, contacting part of the oxide layer with an inorganic compound different from the oxide to dissolve that part of the layer in the inorganic compound, and removing the dissolved layer together with the inorganic compound.

Reducing viscosity of aqueous sucrose fatty ester solution

Abstract: A method for reducing the viscosity of an aqueous solution of a sucrose fatty ester (I) comprises adding 1-50 parts by weight of an anionic surfactant (II) to 100 parts by weight of an aqueous solution containing 5-50% of (I) with a hydrophilic-lipophilic balance (HLB) of 5-20 Also claimed is a method of dispersing an inorganic compound, a cosmetic compound or a sparingly water-soluble substance in water, an emulsifying agent consisting of (I) (with HLB 5-20) and 1-50 (preferably 1-20) wt% (II) (based on (I))

Production of thin film/powder using mixed solid as raw material

Abstract: PROBLEM TO BE SOLVED: To increase film forming rate or powder producing rate and to improve film quality or powder quality in a method for producing a thin film/ powder by irradiating a solid organic material with laser. SOLUTION: The mixture solid 16 prepared by adding and mixing at least one of a metal, a metallic compound and an inorganic compound of a 2nd component to and with an organic compound of a 1st component is arranged in a reaction chamber 14 and after the reaction chamber 14 is evacuated into an reduced pressure state of 10 -10 Pa, molecules are deposited on a capturing body 20 by heating and exciting the mixture solid 16 with the irradiation of infrared laser and/or ultraviolet laser to emitting the molecules. As the metal of the 2nd component, at least one of Co, Fe, Ni and Cu is used, as the metallic compound, at least one of a Co compound, Fe compound, a Ni compound and a Cu compound is used and as the inorganic compound, a ceramic is used.

Synthetic porous material with microporous walls defining narrow size distribution mesopores

Abstract: A process for preparing an inorganic porous material, includes the steps of forming a solution of a hydrolyzable inorganic compound with a non-ionic surfactant having organic molecules; inducing growth and condensation of a solid composition comprising an inorganic composition in intimate contact with said organic molecules; and extracting said organic molecules from said inorganic composition so as to provide said inorganic porous material having wall portions defining mesopore-sized channels having a mean diameter of between about 15 % to about 100 % and a narrow diameter distribution of less than or equal to about 30 %, said material having a void volume from said mesopore-sized channels of at least about 0.1 cc/g.

Shear strength of C/C composites containing an inorganic compound effective for anti-oxidation

Abstract: Abstracts are not published in this journal

Material for forming electron emission portion, and manufacture of electron emission element, electron source, display element and image forming device

Abstract: PROBLEM TO BE SOLVED: To attain a large area of an image forming device, and reduce the manufacturing cost by making the material for forming an electron emission portion of an electron emission element forming an electron emission portion via the heating and burning process of a metal compound contain a metallic complex and resin. SOLUTION: On an element electrodes 2, 3-formed insulating board 1, liquid drops containing an organic metallic complex and water soluble resin is imparted by a liquid drop imparting means, the same is heated and burnt to produce metal or a metal inorganic compound so as to form a thin film for forming an electron emission portion 4. Stating details further. An organic metallic complex-applied board is heated up to a decomposition temperature or higher, and the organic component of the organic metallic complex and resin are decomposed on the board to obtain a thin film 4. When the organic metallic complex is heated and burnt, the organic component and the resin are decomposed in most cases at about 300 deg.C into metal, inorganic compounds such as a metal oxide, and the like. When a current is carried between the electrode 2, 3, an electron emission portion 5 having a changed structure is formed at the position of the thin film 4.

Surface-coated water-containing laminar silicate salt and water-softening agent containing the same as active ingredient

Abstract: PROBLEM TO BE SOLVED: To obtain a surface-coated water-containing laminar silicate salt improved in cation exchange capacity, cation exchange rate and dissolution characteristics by coating the surface of a specific water-containing lamellar silicate salt with an inorganic compound, a polymeric compound or an organic silicon compound. SOLUTION: The water-containing amorphous product or aqueous solution of sodium silicate having a SiO2 /Na2 O molar ratio of 0.05-6 and a H2 O/Na2 O molar ratio of 0.5-10 is subjected to a hydrothermal reaction and subsequently treated with an acidic substance. The produced lamellar silicate (salt) reduced in the content of the alkali metal is treated with the salt or hydroxide of an alkali metal including Na to produce the water-containing lamellar silicate salt of the formula: (Mx Na1-x )2 Siy O2y+1 .zH2 O (M is an alkali metal except Na; x is 0-0.5; y is 3-7.5; z is 1-20) and having a spin- lattice relaxation time ( Na-solid nuclear magnetic resonance spectrum) of <=0.35. The surface of the silicate salt is coated with at least one kind of inorganic compound selected from the (hydr)oxide and carbonate of a metal, a polymeric compound or an organic compound having a hydroxyl group-reacting functional group.

Method for copolymerizing olefin in vapor phase

Abstract: PROBLEM TO BE SOLVED: To facilitate the control of the density of a formed copolymer resin by adding an organoaluminum compound to the reaction system in copolymerizing an olefin in a vapor phase in the presence of a catalyst prepared by bringing five specified components into contact with each other. SOLUTION: A catalyst is prepared by bringing a compound (e.g. tetramethoxyzirconium) containing a metal of group IVB in the periodic table, a compound (e.g. trimethylboron) containing a metal of group I, II or III in the periodic table, an organic cyclic compound (e.g. cyclopentadiene) having a plurality of conjugated double bonds, a modified organoaluminum compound having an Al-O-Al bond and/or a boron compound and an inorganic compound support and/or a particulate polymer support into contact with each other. In copolymerizing an olefin in a vapor phase in the presence of this catalyst, an organoaluminum compound (e.g. trimethylaluminum) is added to the reaction system to control the density of the formed copolymer resin.

Manufacture of cds/cdte solar battery

Abstract: PROBLEM TO BE SOLVED: To uniformly dope copper into CdTe by a method wherein, after a CdS film and a CdTe film have been laminated on a glass substrate, carbon paste containing adhesive material, with which a carbon powder-copper organic compound and a copper organic compound can be soluble, is applied to the CdTe film, dried and heat treated, and copper is thermally diffused into the CdTe film SOLUTION: A CdS film 2 and a CdTe film 3 are laminated on a glass substrate 1 Diethylene glycol monobutyl ether is kneaded as the first adhesive material to carbon black and graphite powder, copper naphthenate, as an organic compound of copper, is dissolved and mixed into terpineol as the second adhesive material and carbon paste, in which inorganic compound of copper is uniformly dispersed, is obtained After the above-mentioned paste has been applied on the CdTe film 3 and dried up, the adhesive material component is removed by evaporation, and the organic compound of copper is uniformly presented in the film The organic compound of copper is thermally decomposed by heat treatment, copper is grown in uniform density, it is diffused into CdTe, and the copper can be doped uniformly in the CdTe