Showing papers on "Inorganic compound published in 2002"

Layered nickel hydroxide salts: synthesis, characterization and magnetic behaviour in relation to the basal spacing

Abstract: Layered nickel hydroxide salts Ni(OH)2−x(A)x·nH2O (A = NO3−, n-alkylsulfonates CnH2n+1SO3− with n = 10, 14, 18) have been prepared by exchange reaction in aqueous medium at pH = 8.5, starting from the layered hydroxide acetate Ni(OH)1.5(CH3COO)0.5·nH2O. This parent compound has been synthesized by hydrolysis in polyol medium. The obtained compounds present the typical features of the brucite-like structure with turbostratic disorder and an interlayer spacing varying in the range 7.5–32 A. The magnetic properties have been investigated by means of dc and ac measurements. Two main interactions are found in these materials. On one hand, ferromagnetic in-plane exchange interactions dominate at high temperature, as deduced from the positive Weiss constant, while interlayer ferromagnetic interactions of dipolar origin are responsible for the 3D order at low temperature. This order is indicated by the hysteresis loops below a critical temperature lying in the range 16–18 K. The magnetic properties will be discussed in relation to the structural features, and are mainly driven by the length of the intercalated anion and its head-group functionality. It will be shown that these compounds form a novel series of layered materials for which the model of ferromagnetic layers interacting through dipolar coupling can be successfully applied.

Surface inorganic chemistry: The reaction of hydroxyl-terminated thiols on gold with a zirconium coordination compound

Abstract: We produced a well-defined inorganic/organic double layer system by the reaction of a zirconium coordination compound with a hydroxyl-terminated alkanethiol monolayer. The hybrid system was prepared by wet chemistry, immersing a thiol-covered gold substrate in a dilute solution of the reagent bis(acetylacetonato)bis(1,1,1,3,3,3-hexafluoro2-propanolato)zirconium, Zr(acac)2(hfip)2, in isooctane. Characterization of the layered structure was carried out by means of contact-angle measurements, X-ray photoelectron spectroscopy, and mass spectroscopy. The inorganic compound was found to establish a monolayer on top of the supporting organic film, with a packing density of approximately 1 order of magnitude lower than the underlying thiol film. The rate constant of the reaction was found to be significantly lower than that of thiol adsorption on gold. While the films were stable under hexane and isooctane, the reaction of the zirconium reagent with the surface-immobilized alcohol was completely reversible when i...

Polynuclear coordination compounds as precursors for CuFe2O4

Abstract: The possibility of obtaining copper ferrite through the thermal decomposition of the two polynuclear coordination compounds: (NH4)8[Fe2Cu(C2O4)8] (I) and [Fe2Cu(C2O4)2(OH)4]·4H2O (II) was considered. The polynuclear compounds were characterized by various physical chemical techniques, e.g., IR, UV-VIS, EPR, Mossbauer spectra, thermal analysis and magnetic measurements. The final products obtained after thermal decomposition of the complex compounds were analysed by X-ray diffraction. A mixture of tetragonal CuFe2O4, α-Fe2O3 and CuO is generated from the thermolysis of compound I, while a clean tetragonal CuFe2O4 with saturation magnetization of 26.89 emu g−1 is obtained from compound II.

Particulate coated flame-retardant for polymer

Abstract: Disclosed is a coated particulate flame retardant for a polymer, which comprises inorganic compound particles, each having, bonded to the surface thereof through a covalent bond, a coating compound so that the inorganic compound particle is coated with the coating compound, wherein the coated inorganic compound particles have an in situ-found number average particle diameter (α) in the range of from 1 to 1,000 nm, as measured with respect to the coated inorganic compound particles in a composition comprising a polymer having dispersed therein the coated inorganic compound particles.

Multilayer barrier film structure, organic electroluminescent display panel, and manufacturing method

Abstract: PROBLEM TO BE SOLVED: To provide a multilayer barrier film structure in which gas barrier property is high, an organic EL display panel, and a manufacturing method. SOLUTION: The multilayer barrier film structure of the organic EL display panel is formed on the surface of a support substrate, and this has a multilayer body composed of middle film in which the number of penetrating molecules of oxygen, water, etc. decreases by heating or radiating and an inorganic compound film laminated by pinching this, and a sealing region which is installed so as to surround the multilayer body on the surface of the support substrate and which is deformed from the middle film by heating and radiating. In the manufacturing method of the organic EL display panel composed of an organic EL element and the support substrate carrying this, a first inorganic compound film is formed so as to cover the surface of the support substrate, the middle film in which the number of penetrating molecules of oxygen, water, decreases by heating and radiating is formed on the first inorganic compound film, a second inorganic compound film is formed on the middle film, a first and a second display electrodes and the organic EL element composed of one or more organic functional layers composed of an organic compound pinched and laminated between the first and second display electrodes, are formed on the second inorganic compounbd film. The sealing region converted from the middle film so as to surround the organic EL element is formed by heating or radiating the circumference other than the organic EL element. COPYRIGHT: (C)2004,JPO

Transparent base with cured film

Abstract: PROBLEM TO BE SOLVED: To provide a material having a sufficient antireflection performance only with a single antireflection film. SOLUTION: A transparent base comprises a cured film formed of porous fine particles, non-porous inorganic compound fine particles, and a composition containing a binder component selected from the group consisting of a curable compound and a resin on a surface of a base. The porous fine particles are preferred to be silica fine particles, and a porous silica having a double structure with its coated surface or a porous composite oxide containing a silica is effective. As the binder component, a curable compound such as, for example, a multifunctional radical polymerizable compound, a cationic polymerizable compound, a hydrolyzable organic silicon compound or the like is effective. As the cationic polymerizable compound, an oxetane compound is used, and as desired, an epoxy compound, a multifunctional radical polymerizable compound, a hydrolyzable organic silicon compound or the like can be used together. COPYRIGHT: (C)2003,JPO

Organic el device and substrate used for it

Abstract: PROBLEM TO BE SOLVED: To provide an organic EL element which is excellent in transparency and durability, drives on low voltage, emits light of high luminance, using an electrode layer containing a special inorganic compound. SOLUTION: The organic electro-luminescence device 100 is prepared by piling an anode layer 10, an organic light emitting layer 14 and a cathode layer 16 in order. At least one of the anode layer 10 and the cathode layer 16 contains at least one of inorganic compound among group A-1 and at least one compound among group B-1; where group A-1 includes chalcogenides, oxynitrides, nitrides of Si, Ge, Sn, Pb, Ga, In, Zn, Cd, and Mg, while group B-1 includes chalcogenides, oxynitrides, nitrides of lanthanoids. The anode, and so on, containing these special compound provide an organic EL device which is excellent in transparency and durability and emits light of high luminance even if it is driven at low voltage. COPYRIGHT: (C)2004,JPO

Electrically conductive inorganic compound including alkali metal

Abstract: PROBLEM TO BE SOLVED: To obtain substances having a high electrical conductivity (>10 -4 Scm -1 ) at room temperature in a solid solution system of CaO and Al 2 O 3 . SOLUTION: The substances include a 12CaO-7Al 2 O 3 compound including alkali metal atoms or ions of a concentration of ≥1x10 18 cm -3 , a 12SrO-7Al 2 O 3 compound including alkali metal atoms or ions of a concentration of ≥1x10 18 cm -3 , and further a mixed crystal compound of 12CaO-7Al 2 O 3 and 12SrO-7Al 2 O 3 including alkali metal atoms or ions of a concentration of ≥1x10 18 cm -3 . These compounds have an electrical conductivity of ≥10 -4 Scm -1 . COPYRIGHT: (C)2004,JPO

Inorganic compound-containing resin composition, and laminate and packaging form using the same

Abstract: PROBLEM TO BE SOLVED: To provide an inorganic compound-containing resin composition suppressed in resin physical property deterioration even if dispersed with an inorganic compound having drying ability in high concentrations and provided with processability improvement despite increasing moisture absorption rate. SOLUTION: The inorganic compound-containing resin composition is obtained by compounding 100 pts. wt. of a resin prepared by incorporating 50-99 wt.% of a polyolefin resin with 1-50 wt.% of a blend resin containing an ethylene-α,β-unsaturated carboxylic acid or an ion-crosslinked product thereof with 1-100 pts. wt. of an inorganic compound and a resin-based pigment dispersant 500-10,000 in molecular weight determined by viscosity method so that the weight ratio R of the dispersant to the inorganic compound meet the relationship:0.1≤R≤5. COPYRIGHT: (C)2004,JPO

Crystal structure of ammonium indium (monophosphate-hydrogenmonoborate-monophosphate), (NH4)In[BP2O8(OH)]

Abstract: BH5InNO9P2, triclinic, P1 (No. 2), a = 5.2980(4) A, b = 8.4880(4) A, c = 8.3901(5) A, = 93.077(5)°, = 93.331(6)°, = 80.634(5)°, V = 371.3 A 3 , Z =2 , Rgt(F) = 0.038, wRref(F 2 ) = 0.091, T = 293 K.

Neutron shielding material for maintaining sub-criticality based on unsaturated polymer

Abstract: The invention concerns a neutron shielding material for maintaining sub-criticality based on unsaturated polymer: Said material comprises an unsaturated polyester resin, at least an inorganic boron compound, and at least a hydrogenated inorganic compound, in amounts such that the boron concentration is 4.1021 to 25.1021 atoms per cm3 and the hydrogen concentration is 3.1022 to 5.5.1022 atoms per cm3.

Inorganic function-adding agent

Abstract: PROBLEM TO BE SOLVED: To provide an inorganic function-adding agent which can add an excellent function to a substrate. SOLUTION: This inorganic function-adding agent comprises an inorganic compound whose surface is covered with at least one compound selected from the group consisting of compounds containing silicon, compounds containing aromatic groups and polymers and an average particle size is not less than 1 nm and less than 1,000 nm. The ratio of the particles whose size is not less than 100 nm is not more than 10% of all the particles. COPYRIGHT: (C)2004,JPO

Method for manufacturing inorganic-nanoparticle fusion or accretion structure, and fusion or accretion structure

Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method for producing an inorganic-nanoparticle fusion structure or accretion structure from a nano-size inorganic compound material, and to provide the inorganic nanoparticle fusion structure or accretion structure obtained through the manufacturing method. SOLUTION: The manufacturing method is characterized by a plasma treatment for a plurality of inorganic nanoparticles having the surface coated with an organic film, which decomposes and removes the above organic film, and fuses or accretes the above inorganic nanoparticles to form the inorganic nanoparticle fusion or accretion structure. The inorganic nanoparticle fusion or accretion structure has a linear structure in which the ratio of a full length to a width length is 3 or larger. COPYRIGHT: (C)2004,JPO&NCIPI

Material for gas barrier film

Abstract: PROBLEM TO BE SOLVED: To provide a material exhibiting high gas barrier performance for a gas barrier film, and a gas barrier film. SOLUTION: The material for a gas barrier film comprises (A) a hardly water-soluble inorganic fine particle having an average particle size of 500 nm or less dispersed in or compound with (B) a polymer compound, where (A) comprises an ion crystal of a non-layered structure synthesized by reacting (a) an inorganic compound comprising as an essential ingredient at least one selected among group 2 elements of the periodic table, aluminum, silicon, the fourth period transition metals, zinc, zirconium, silver and tin, or a mixture thereof with (b) at least one compound selected among organic acids, inorganic acids, and salts thereof. The film is prepared using the same.

Electrode substrate and manufacturing method

Abstract: PROBLEM TO BE SOLVED: To aim at a removal of a surface defect layer existing on the surface of an anode of a CCM board, protection of the anode surface, and, by extension, at prevention of rise of drive voltage of an organic EL element as well as maintenance of luminous uniformity. SOLUTION: A CCM layer 14 is laminated on a board 12 for making wave-length change of light, and an anode 16 made of an IZO is formed on the CCM layer 14. A surface protection layer 18 made of an inorganic compound is laminated on the anode 16 by a sputtering process with a plasma-supporting magnetron sputter of an inductive coupling type. SiO 2 is preferable as the inorganic compound. While removing the surface defect layer of the anode 16 the inorganic compound can maintain a state in which the surface defect is removed. As a result, electric stability of the anode 16 can be maintained for a long period of time to improve display image quality of an organic EL display device 100. COPYRIGHT: (C)2004,JPO

Isotypism and low-dimensional physical properties of CuAs2/3H2/3O3 (theoparacelsite), the spin-Peierls phase CuGeO3 and CuSiO3

Abstract: Theoparacelsite is a recently discovered orthorhombic copper arsenate hydroxide mineral with the ideal chemical formula Cu 3 As 2 O 7 (OH) 2 , but because of disorder only two smaller formula units CuAs 2/3 H 2/3 O 3 are established in the orthorhombic unit cell with lattice parameters a = 4.6644(5) A, b = 8.3212(8) A and c = 2.9377(3) A, and space group Pbmm. We show that this rare mineral is isotypic to the unique inorganic spin-Peierls phase CuGeO 3 (T SP =14.3 K) and to the recently discovered copper polysilicate, CuSiO 3 , which is also a quasi-one-dimensional S=1/2 anti-ferromagnetic chain compound (T N = 7.9 K). We discuss in detail the previously reported crystallographic data of the phases at room temperature in view of its ability to attain similar low-dimensional physical properties and conclude that the arsenate with its S=1/2 spin chains of edge-sharing CuO 4+2 octahedra may be a further inorganic compound that could show the spin-Peierls effect. Although the Cu-O(2)-Cu angle, which is considered to be important for the magnetic interaction and ground state properties, has been found for the arsenate (98.8°) almost identical to that of the germanate (99.1°), the modified inter-chain coupling of the arsenate as a defect variant of the CuGeO 3 structure type may suppress the spin-Peierls effect and favour other states of magnetic order (chiral spin chains, AF order). With respect to the rarity of the mineral some remarks on synthesis routes are made.

無機化合物におけるGa+ 1次イオンTOF-SIMSフラグメント・パターンの規則性

Abstract: Regularity of Ga+ primary ion TOF-SIMS fragment pattern of inorganic compounds is discussed. For an inorganic compound as formulated M-A, where the valence of cation M is +n and that of anion A is −p, the molecular formulas of appeared TOF-SIMS fragments are MxAy, which satisfy the rule nx ≥ (py + 1) for positive ion fragments and nx ≤ (py + 1) for negative ones. For example, for oxide fragments of molecular formula, MxOy (the valence of M is +n), the fragment pattern obeys the rule nx ≥ (2y + 1) for positive ions and nx ≤ (2y + 1) for negative ones, respectively. The regularity of TOF-SIMS fragment patterns of sulfides, nitrates, sulfates, etc. is discussed.

Aromatic polycarbonate type flame-retardant resin composition excellent in residence stability

Abstract: PROBLEM TO BE SOLVED: To obtain an aromatic polycarbonate type resin composition being excellent in melt stability and heat resistance and giving a molding excellent in flame retardancy and surface appearance SOLUTION: This flame-retardant aromatic polycarbonate resin composition comprises (A) 100 pts wt aromatic polycarbonate, (B) 0-40 pts wt thermoplastic resin except the aromatic polycarbonate, (C) 001-10 pts wt one or more types of inorganic compound particles selected from among acicular inorganic compound particles, platy inorganic compound particles, and branched-structure-containing inorganic compounds, (D) 00001-1 pt wt at least one metal salt selected from an alkali metal salt and an alkaline earth metal salt, and (E) 001-1 pt wt fluoropolymer The water content of the inorganic compound particles (C) is 5 wt% or lower COPYRIGHT: (C)2004,JPO

Process for producing inorganic fine grains, inorganic fine grains, rare earth element-activated barium fluorohalide fluorescent substance, and radiation image conversion panel

Abstract: A process for producing inorganic fine grains in a definite form having a small grain size, the inorganic fine grains obtained by this process, a rare earth element-activated barium fluorohalide fluorescent substance made using the grains, and a radiation image conversion panel with a layer of the fluorescent substance. The process features adding, to a solution containing an inorganic compound, a solid matter substantially insoluble in the solution, promoting crystallization or precipitation in the solution to form crystal or precipitate, and separating out the resulting crystal or precipitate. The inorganic fine grains produced by this process are represented by the formula BaFI:xLn (Ln represents at least one of Ce, Pr, Sm, Eu, Tb, Dy, Ho, Nd, Er, Tm and Yb, and 0

- fast kinetics lithium-sulfur batteries

Abstract: PURPOSE: Provided is a lithium-sulfur battery showing a fast electrochemical reaction and having excellent discharge property, which contains an electrolyte containing a lithium salt, a weak polar solvent, and a strong polar solvent. CONSTITUTION: The lithium-sulfur battery comprises: a cathode containing lithium metal or lithium alloy as a cathode active material; an anode containing an anode active material and an electrically conductive material and additionally a first additive such as an inorganic compound, an organic compound, and an electroactive substance or a second additive such as transition metal, IIIA and IVA group metal, and etc., wherein the anode active material contains at least one sulfur material selected from the group consisting of sulfur atom, Li2Sn(n>=1), an organic sulfur compound, and a carbon-sulfur polymer; the electrolyte containing the lithium salt such as lithium trifluoromethanesulfonimide, the weak polar solvent such as xylene and tetrahydrofuran, and the strong polar solvent such as hexamethyl phosphoric triamide. When the lithium-sulfur battery is reduced, a first reduction peak of a cyclic voltammetry is shown at 2.4-2.0V at a scan speed of less than 0.1mV/s.

Electrode junction body for solid polymer fuel cell

Abstract: PROBLEM TO BE SOLVED: To provide an electrode junction body for a solid polymer fuel cell with sustained output characteristics for a long period of time with drying restrained even when gas supplied is not humidified well. SOLUTION: With the electrode junction body for the solid polymer fuel cell provided with an anode, a cathode, and an ion exchange membrane arranged between the anode and the cathode, inorganic compound such as an inorganic ion exchanger and an inorganic phosphate with an angle of contact of 10° or lower to water is made included in the anode and/or the cathode. COPYRIGHT: (C)2003,JPO

Hybrid structure, and its production method

Abstract: PROBLEM TO BE SOLVED: To propose an industrially inexpensive method for producing an organic/inorganic composite or an inorganic/ inorganic composite in which an inorganic filler has been oriented in a specified direction on the molecular order so as to most efficiently or arbitrarily exhibit the performance positively for a purpose by effecting structural control of a superfine particle filler, particularly a tabular superfine particle filler (inorganic filler) constituting a molecular composite in the composite suitably for a purpose. SOLUTION: A hybrid structure has fine particles as the oriented filler in an organic polymer, an inorganic polymer or an inorganic compound by applying an electric field to an organic polymer solution, an inorganic polymer dispersion or a dispersion of an inorganic compound which contains the fine particles of a laminar inorganic compound, and its production method is provided.

Process for the preparation of a resin composition comprising a thermoplastic resin and an aluminum-containing inorganic compound

Abstract: A resin composition comprising a thermoplastic resin and an aluminum-containing inorganic compound, wherein the thermoplastic resin and the aluminum-containing inorganic compound form a parent phase and a dispersed phase, respectively, and the following inequality (1) 0< d ≤ -0.0997  + 2.97 is satisfied, in which d (µm) is the wall-to-wall distance of the dispersed phases and  (% by weight) is the content of the aluminum-containing inorganic compound based on the weight of the resin composition, is produced by melt-blending a thermoplastic resin with an aluminum-containing inorganic compound powder having a BET specific surface area of from 30 to 500 m 2 /g, a maximum particle diameter of not more than 20 µm, and a pore volume of pores having a radius of from 50 to 1000 nm measured by mercury porosimetry of not less than 0.3 cm 3 /g.