Abstract: A catalyst suited for catalytic vapor-phase oxidation of isobutylene, t-butanol or propylene to produce respectively corresponding unsaturated aldehyde and unsaturated carboxylic acid is provided. Said catalyst consists of ring-formed shaped bodies composed of (i) a catalyst composition containing at least molybdenum and bismuth as the active ingredients and (ii) inorganic fibers. The catalyst excels in mechanical strength, can give the object products at high yield and shows little activity degradation with time.

Abstract: An ink jet ink for thermal ink jet point-of-sale printers is provided, comprising: (a) a vehicle comprising (i) 5 to 10 wt % of a drying agent selected from the group consisting of 1,2-hexanediol and 1,2-pentanediol, (ii) 15 to 32 wt % 2-pyrrolidone, (iii) 15 to 37 wt % of at least one humectant, and (iv) the balance water; (b) 0.5 to 10 wt % of a water-soluble dye; and (c) 0 to 3 wt % comprising buffers, corrosion inhibitors, surfactants, biocides, polymers, pigments, and binders, with the proviso that the total amount of surfactants is 0.1 wt % or less, based on the total ink composition. In particular, the ink jet ink is employed in combination with a printhead having a nickel orifice plate through which droplets of the ink are expelled onto a print medium. The ink jet ink composition is environmentally friendly, reliable, and fast drying, on the order of 300 msec and less. Further, the ink composition exhibits minimal puddling on the nickel orifice plate, leading to improved print quality.

Abstract: A device for analyzing samples by electrophoresis comprises a plurality of capillaries, receiver means comprising a multiplicity of independent units each made of a material that is thermally conductive and electrically insulating, and designed to be closely enclosed over the central portion of a capillary, and temperature regulator means comprising at least one Peltier unit for exchanging heat with the units via a solid/solid exchange so as to regulate the temperature of the capillaries via said units.

Abstract: The present invention relates to a multifunctional reusable catalyst and to a process for the preparation thereof on a single matrix of the support to perform multicomponent reaction in a single pot. The multifunctional catalysts of the invention are useful for the synthesis of chiral vicinal diols by tandem and/or simultaneous reactions involving Heck coupling, N-oxidation and AD reaction of olefins in presence of cinchona alkaloid compounds both as an native one and immobilized one in the said matrix support. This invention also relates to a process for preparing vicinal diols by asymmetric dihydroxylation of olefins in presence of cinchona alkaloid compounds employing reusable multifunctional catalysts as heterogeneous catalysts in place of soluble osmium catalysts.

Abstract: A multimetallic reforming catalyst and the preparation process thereof are disclosed. Said catalyst comprises the following components on the basis of mass percent: 0.01-2.0 of a Group VIII metal, 0.01-5.0 of a Group IVA metal, 0.01-10.0 of Eu, 0.01-10.0 of Ce, 0.10-10.0 of a halogen, and 63.00-99.86 of a refractory inorganic oxide. This catalyst has relatively high activity and selectivity, low carbon deposition rate and long lifetime for reformation of naphthas.

Abstract: A process for preparing a fluorination catalyst using a low pressure activating step followed by a high pressure activating step.

Abstract: A magnesium halide composition comprising and/or made from a magnesium halide, a solvent suitable for an electron donor compound and an electron donor compound. The composition is characterized by enhanced solubility whereby it has a solubility in the solvent that does not decrease as a function of temperature up to the boiling point of the solvent and the solubility of the magnesium halide in the solvent is greater than 0.7 mol/liter. A polymerization catalyst precursor composition can be made from magnesium halide composition by mixing the magnesium halide composition with a transition metal compound.

Abstract: A particulate, modified chromium oxide catalyst for the polymerisation of ethylene or ethylene with &agr;-olefins, comprising: a) a chromium-oxide catalyst, b) a transition metal compound, and c) a catalyst activator. A method for the preparation of the catalyst comprises the steps of: a) subjecting a chromium oxide catalyst precursor, which comprises a chromium oxide compound combined with an inorganic support, to a temperature in the range of from 400 to 950° C.

Abstract: A catalyst composition for living free radical polymerization. The catalyst composition includes a transition metal complex MXp and a ligand, wherein M is a transition metal; X is halogen, —NO2, —NCS, —NCO, —SCN, —CN, —N3, —SO4, carboxylate group, or —PF6; p is the valence of the transition metal, the ligand is represented by formula (I): wherein R1 can be the same or different and is C1-20 alkyl, C6-20 aryl, C7-20 alkylaryl, C7-20 arylalkyl, or heterocyclic groups; R2 can be the same or different and is H, C1-20 alkyl, C6-20 aryl, C7-20 alkylaryl, C7-20 arylalkyl, heterocyclic groups, alkyl sulfide groups, nitrile groups, alkylsilyl, or ester groups; n is an integer of 0 to 6; and A is deleted or an S or O atom, wherein the molar ratio of the transition metal complex MXp and the ligand is 1 to 4.

Abstract: Process of preparing silica-supported catalysts. A support material comprising silica particles impregnated with an alumoxane co-catalyst with at least one-half of the co-catalyst disposed within the internal pore volume of the silica is contacted with a dispersion of a metallocene catalyst in an aromatic solvent. The dispersion and support are mixed at a temperature of about 10° C. or less to enable the metallocene to become reactively supported on and impregnated within the alumoxane-impregnated silica particles. The supported catalyst is recovered from the aromatic solvent and washed with an aromatic hydrocarbon and then a paraffinic hydrocarbon at a temperature of about 10° C. or less. The washed catalyst is dispersed in a viscous mineral oil.

Abstract: A molten-salt type catalyst is adapted for purifying particulate materials, which are contained in an exhaust gas emitted from an internal combustion engine and contain carbon. It includes a solid support and a catalytic ingredient. The catalytic ingredient is loaded on the solid support, and includes at least one member selected from the group consisting of silver nitrate, alkali metal nitrate, alkaline-earth metal nitrate and rare-earth nitrate. The molten-type catalyst can efficiently burn and remove the particulate materials even in a low temperature range.

Abstract: Provided is a water based ink composition for a writing instrument comprising at least one of nonionic surfactants comprising polyhydric alcohol fatty acid esters, ethylene oxide adducts of polyhydric alcohol fatty acid esters, ethylene oxide adducts of higher alcohols and alkylphenols, ethylene oxide and propylene oxide adducts of higher alcohols, ethylene oxide adducts of castor oil or hardened castor oil, ethylene oxide adducts of hardened castor oil fatty acid esters and ethylene oxide adducts of higher alkylamines and fatty acid amides and further comprising a colorant, a perfume and water. It is less liable to cause feathering of the lines and has durability of fragrance, in which a perfume is dispersed and retained in an aqueous medium in a stable state.

Abstract: Organic molecules are partially oxidized in that the gas phase on supported and immobilized photocatalysts deposited having a nanostructure. the photocatalysts are semiconductors such as titanium dioxide and are preferentially coated onto a substrate by flame aerosol coating.

Abstract: A process for the preparation of a supported metallocene catalyst incorporating metallocene and co-catalysts components on a support. There is provided a particulate catalyst support material in which an alumoxane co-catalyst is incorporated onto the support particles and contacted with a dispersion of a metallocene catalyst in an aromatic hydrocarbon solvent. The metallocene solvent dispersion and the alumoxane-containing support are mixed at a temperature of about 10° C. or less for a period sufficient to enable the metallocene to become reactively supported on the alumoxane support material. The supported catalyst is recovered from the aromatic solvent and then washed optionally with an aromatic hydrocarbon and then sequentially with a paraffinic hydrocarbon solvent at a temperature of about 10° C. or less. The washed catalyst is dispersed in a viscous mineral oil having a viscosity which is substantially greater that the viscosity of the paraffinic hydrocarbon solvent.

Abstract: It is an object of the present invention to provide a pigment dispersed aqueous ink composition for use in ink jet printing which gives reliable printing performance and yields rapidly drying printed images with levels of color bleed, which are equal to or better than those obtained from comparable dye based inks. According to the present invention, there is provided a pigment dispersed aqueous ink jet ink composition comprising water as the principal solvent, a water-soluble organic solvent, and a polysaccharide compound represented by the formula: wherein A represents a polyamine.

Abstract: An ink suitable for application to a heat resistant substrate and firing to fuse the ink to the substrate, the ink being in a form for ink jet printing and including a carrier material; a pigment; a fusible vitreous agent including particles of less than 10 microns in size, and the carrier having a melting point for phase change of the ink. The pigment includes ceramic pigment particles of less than 10 microns in size and the pigment and fusible vitreous agent are combined in the form of ceramic pigment particles. Dispersant is chemisorbed to these particles.

Abstract: The present invention relates to a process for preparing vanadyl pyrophosphate catalyst with improved structural characteristics for the selective oxidation of butane to maleic anhydride.

Abstract: An ink jet ink composition includes a liquid vehicle, a colorant and at least one alkyl saccharide surfactant having at least one sugar moiety head and at least one alkyl chain tail.

Abstract: Solid catalyst components and catalysts which contain (a) magnesium compound, (b) titanium tetrachloride, and (c) a phthalic acid diester or its derivative are useful in the synthesis of olefin polymers in high yields. Particularly, propylene polymers can be obtain in very high yields while retaining high stereoregularity.

Abstract: A reversible thermochromic composition with light fastness feature comprises (a) an electron-donating color former, (b) an electron-accepting compound represented by Formula I, wherein R1 represents a straight-chain or a branch-chain alkyl group having 1 to 3 carbon atoms, R2 represents an alkyl group, an aromatic group or a heterocyclic group having 1 to 14 carbon atoms, (c) a solvent including an alcohol, ester, ether, ketone, carboxylic acid or acid amide, and (d) a light stabilizer. The reversible thermochromic composition can be encapsulated in microcapsules. Furthermore, the reversible thermochromic compositions undergoes reversible metachromatism at a temperature of −50° C. to 80° C.