Abstract: Hydrogen peroxide is produced by a process which uses solid, insoluble, supported anthraquinone as catalyst. The supported anthraquinone is converted to supported anthrahydroquinone utilizing soluble reducing agentsor by hydrogenation with a hydrogen-donating organic substrate such as an alcohol, followed by reaction with oxygen, to regenerate anthraquinone and to form hydrogen peroxide, which can be solvent extracted from the solid catalyst.

Abstract: This invention relates to magnetic particles comprising mixed oxides of divalent metals and iron (III), having a diameter of 1-10 nm and a surface area of 120-350 m.sup.2 /g, with silanes bound to the surface of said particle. It also relates to (1) the process for making said particles by simultaneous precipitation and silanization from aqueous solution and (2) their use as carrier materials for the magnetic separation of substances immobilized therewith.

Abstract: Goniochromatic luster pigments based on multiply coated platelet-shaped metallic substrates comprising at least one layer packet ofA) a layer consisting essentially of silicon oxide, silicon oxide hydrate, aluminum oxide and/or aluminum oxide hydrate, andB) a nonselectively absorbing, silicon-containing layer which is at least partially transparent to visible light,and also, if desired, additionallyC) an outer layer which consists essentially of colorless or selectively absorbing metal oxide,are useful for coloring paints, inks, including printing inks, plastics, glasses, ceramic products and decorative cosmetic preparations.

Abstract: A metal paste comprising ultrafine particles of a metal. The particles have a particle size of 1000 angstroms (0.1 micron) or less and are individually uniformly dispersed in an organic solvent. A process for producing a metal paste comprises the steps of evaporating a metal in a vacuum chamber in an atmosphere of an inert gas at a pressure of 10 Torr or less and of collecting the vapor of the evaporated metal on a cooling surface in the form of ultrafine particles having a particle size of 1000 angstroms (0.1 micron) or less, wherein a vapor of an organic solvent is introduced into the vacuum chamber while the metal is being evaporated. A method for preparing a metallic thin film having a thickness of between 0.01 micron and 1 micron uses a metal paste containing ultrafine metal particles having a diameter of 0.1 micron or less uniformly dispersed in an organic solvent. In the method, the metal paste is coated on a substrate, dried and sintered.

Abstract: A compounding process for preparing a composite that includes introducing one or more fillers and a matrix material into a stirred ball mill and subjecting the fillers and the matrix material to a combination of shear and impact forces under reaction conditions including reaction time sufficient to reduce the size of agglomerates formed by the fillers to a value below a pre-determined value to disperse the fillers throughout the matrix material.

Abstract: A storage stable particulate composition for effectivly melting ice at cold temperatures without causing corrosion damage to metals it contacts in its use area, comprising primarily a water soluble chloride salt of a metal exhibiting a positive valence of from 1 to 2, such as potassium or magnesium chloride; a minor portion of a water soluble phosphate salt such as monosodium phosphate; and a substantial amount of water soluble alkaline earth metal carboxylate, such as magnesium acetate, coatingly covering the chloride and phosphate salts. Other corrosion inhibitors and modifiers of physical properties may be combined with the chloride and phosphate salts. A method of preparing the coated deicer granules is provided.

Abstract: A treated carbon black may be produced by treating carbon black with at least one polyethylene glycol having a molecular weight of from about 1,000 to about 1,000,000. The treated carbon black may be used in forming polymeric compositions, such as semi-conductive and insulating compounds, for example for use in electrical cables.

Abstract: A phosphor for a color cathode ray tube (CRT) characterized in which the phosphor is coated with a charge regulator such as nigrosine or quaternary ammonium salt and manufacturing method thereof are provided. The phosphor according to the present invention can be positively charged to a level suitable for forming a fluorescent screen by an electrophotographic process.

Abstract: Organophilic particles of a metal oxide chosen from alumina Al.sub.2 O.sub.3, silica SiO.sub.2, transition metal oxides, especially titanium oxide TiO.sub.2, and rare-earth metal oxides, especially cerium oxide CeO.sub.2, are prepared by reacting an aqueous-alcoholic suspension (a) of metal Oxide particles which have no pores less than 5 nm in di-meter at their surface with an anhydrous alcoholic solution (b) comprising at least one alkoxysilane of formula (1)Si(OR).sub.x R'.sub.4-x (1)in which R represents an alkyl group containing from 1 to 6 carbon atoms, R' represents a hydrocarbon group chosen from alkyl, cycloalkyl, aryl, alkylaryl, arylalkyl, alkenyl and alkynyl groups containing at least one carbon atom and x is an integer from 1 to 3, the said alcohols, which may be identical or different, containing from 1 to 5 carbon atoms.

Abstract: A protective monolayer is formed on e.g. silica gel and glass surfaces comprising a monolayer of silicon and oxygen atoms which is substituted with first and second hydrocarbyl substituents.

Abstract: A method for coating ceramic fibers such as Al.sub.2 O.sub.3 fibers includes immersing the Al.sub.2 O.sub.3 fibers in a polyelectrolyte solution. After the polyelectrolyte is allowed to adsorb on the fibers, the unabsorbed polyelectrolyte is washed from the fibers with a distilled water. The fibers are then deposited in an oxide solution such as SnO.sub.2. The SnO.sub.2 is allowed to adsorb on the fibers, and then the unabsorbed SnO.sub.2 is washed from the fibers with the distilled water. The fibers are then sintered at a temperature ranging from 400.degree. C. to 1200.degree. C.

Abstract: The present invention is hydrophobic silica gels and a method for their preparation under neutral conditions. The method comprises two steps, where in the first step the pH of a silica hydrosol is adjusted with a base to within a range of about pH 3 to pH 7 to facilitate formation of a silica hydrogel. In the second step the silica hydrogel is contacted with an organosilicon compound in the presence of a catalytic amount of a strong acid to effect hydrophobing of the silica hydrogel. In a preferred method, in a third step the hydrophobic silica gel is contacted with a sufficient quantity of a water-immiscible organic solvent to convert the hydrophobic silica hydrogel into a hydrophobic silica organogel.

Abstract: Organic peracids supported on inorganic macromolecular supports and a process for preparing them are provided. The peracids have general chemical formulae: Q--O--Si--A--NR--X--CO.sub.3 H (I) wherein Q represents the inorganic support, A is an alkylene or arylene group, R represents hydrogen, alkyl or an aryl group and X represents an optionally substituted alkylene or arylene group, or Q--O--Si--A--N X'--CO.sub.3 H (II) where Q and A are as defined above, and X' represents an optionally substituted alkylene or arylene group. The peracids have improved stability and recovery characteristics compared with those of the prior art.

Abstract: The extent of self-discharge of rechargeable Li-ion secondary batteries is significantly reduced by treatment of LiMn.sub.2 O.sub.4 intercalation compound electrode material with a chelating agent, such as acetylacetone. This treatment decreases the incidence of non-coordinated Mn-ion sites which can lead to battery electrolyte decomposition and resulting loss of battery capacity. The treatment, which also includes annealing at about 400.degree. C. to 800.degree. C., further prevents such decomposition by varying the surface area and topography of the potentially catalytic electrode material.

Abstract: A sizing agent is prepared from at least one specified kind of ester and at least one specified polyepoxy compound. A water-based sizing agent is prepared by emulsifying or dispersing it in water and is applied to carbon fibers at a specified ratio as sizing agent to improve lubricity, abrasion durability and spreadability of the carbon fibers at the same time.

Abstract: New lysine derivatives containing a containing an alkylsulphonyl or alkylaminocarbonyl group of formula (I):COOH--CH(NH.sub.2)--(CH.sub.2).sub.4 --NH--Xin which X represents an --SO.sub.2 R or --CONHR group, where R represents a linear or branched, saturated or unsaturated, alkyl radical having from 8 to 22 carbon atoms, salts thereof, and mixtures of the derivatives and the salts. A process for the preparation of these derivatives, salts, and mixtures and use of such derivatives, salts, and mixtures, especially in cosmetics. Compositions, especially cosmetic compositions, comprising the derivatives, salts, and mixtures.

Abstract: Lysine derivatives, the salts of the derivatives, their optical isomers of D or L configuration, or their mixtures, the derivatives containing an N.sup..epsilon. -alkoxy or N.sup..epsilon. -alkenoxycarbonyl group of formula: ##STR1## in which: R represents a linear or branched C.sub.13 -C.sub.24 alkyl radical, the C.sub.16 radical being branched, or a linear or branched C.sub.8 -C.sub.24 alkenyl radical. The lysine derivatives are used in cosmetic, pharmaceutical hygiene or food compositions.

Abstract: The present invention pertains to an absorbent coating and method for coating a fishing tackle item which absorbent coating will absorb a liquid fish attractant or attractants on contact by utilizing polymer and/or copolymer particles that are applied over a finish coating on the fishing tackle item while the finish coating is in a liquid state.

Abstract: A surface-modified solid fertilizer product is produced by preparing a mixture of a modifier, a water-soluble calcium salt, and water. The modifier is desirably a nitrification inhibitor such as dicyanodiamide and the calcium salt is desirably calcium chloride. A solid fertilizer is prepared, preferably in granular form. The fertilizer has a component reactive with calcium to produce a water-insoluble precipitate. The mixture is coated onto the solid fertilizer, and the solid fertilizer having the mixture coated thereon is dried. The calcium salt reacts with the reactive component of the fertilizer to produce an insoluble binding agent that binds the modifier to the surface of the fertilizer particles.

Abstract: An improved thermal ink jet recording paper, incorporating heat aged precipitated calcium carbonate ("PCC") and a binder, is disclosed. Heat aging the PCC in the presence of an organophosphonate produces discrete particles of PCC with a surface morphology and chemistry that enhances the ability of the PCC to bind to ink jet ink without binding so strongly that the color of the ink is changed. Ink jet recording papers incorporating the PCC and binders of the present invention have reduced feathering, spreading, and penetration or backside showthrough, as well as improved optical density, dry time, and water fastness.

Abstract: A method for suppressing the dissemination of fugitive dust particles into the atmosphere by using an aqueous solution of a water soluble graft copolymer of the general structure: ##STR1## wherein E is the repeat unit obtained after polymerization of an .alpha., .beta. ethylenically unsaturated compound, the molar percentage of a:b is from about 95:5 to 5:95, with the proviso that the sum of a and b equals 100%; G comprises the structure: ##STR2## wherein d, R.sub.1, R.sub.2 and R.sub.3 are the same or different and are hydrogen or a lower alkyl group having C.sub.1 to C.sub.3, F is a salt of an ammonium cation and the molar percentage of c:d is from 95:5 to 5:95 with the proviso that the sum of c and d equals 100%; or an aqueous solution of a water soluble block copolymer of the general structure: ##STR3## wherein J is a polymeric segment obtained from the polymerization of ethylenically unsaturated hydrophobic monomers initiated by a difunctional initiator; R.sub.4 and R.sub.5 are H or a C.sub.1 to C.sub.

Abstract: Method for the preparation of premixes for zootechnic and veterinary use, suitable for uniform distribution in feeds, consisting in coating the granule cores made of feed-grade organic material with a layer made of water-soluble materials, with an active ingredient being incorporated therein or firmly fixed thereto, the formation of said layer being obtained by mixing the ingredients fed in an appropriate order, in a mixer for powders, in the presence of an antitacking agent.

Abstract: An electrically conductive paste effectively protects copper powder from oxidation and provides good solderability and terminal strength. It is composed of a copper powder, a glass frit in an amount of 2-20 wt % of the copper powder, an organic vehicle in an amount of 10-30 wt % of the solid component (the copper powder and glass frit), and a solution of a borate ester having a high boiling point, a solution of boric acid, a solution of an organic salt of boron, and a solution of a borate ester having a low boiling point in an alcohol having a high boiling point, the amount of the solution being 0.01 to 0.5 wt % in terms of boron and based on the copper powder.

Abstract: Powder of ceramic materials is produced by mixing a powder of a basic ceramic composition, a solvent and a surfactant to prepare a slurry, adding at least one unsaturated fatty acid salt containing an additive metal element to the resultant slurry, polymerizing the at least one unsaturated fatty acid salt with a polymerization initiator to form a polymer of at least one unsaturated fatty acid salt, drying the resultant slurry to form a layer of the resultant polymer on particle surfaces of the basic ceramic composition, and then calcining the resultant coated powder of the basic ceramic composition.

Abstract: A protective monolayer is formed on e.g. silica gel and glass surfaces comprising a monolayer of silicon and oxygen atoms which is substituted with first and second hydrocarbyl substituents.

Abstract: Disclosed is a dust suppression suspension and method of suppressing dust evolution from a dust generating material by contacting the material with the suspension. The suspension includes sugar polymer particles suspended in an oil base, and further includes a thickener, a surfactant and an emulsifier. The suspension may be applied directly to the dust generating material followed by water addition, or may be emulsified in water and then applied to the material.

Abstract: In the method described, the degree of agglomeration of the nanometer-size particles can be readily checked, thus enabling dispersions of particles of this kind to be produced with high solids contents. The method calls for the unmodified powder to be dispersed in water and/or an organic solvent in the presence of a low-molecular organic compound including a functional group which can react and/or interact with groups present on the surface of the powder particles. The dispersant may subsequently be wholly or partly removed.

Abstract: This invention relates to hydrophobic free-flowing pellets having an average particle size of 5 to 150 .mu.m, which consist of one or preferably more hydrophilic inorganic powders having a particle size of >0 to 30 .mu.m and contain one or more hydrophobic polyorganosiloxanes in a quantity of 0.03 to 15% by weight, to a process for their production and to their use.

Abstract: Magnetite particles suitable for injection into the blood stream of patients having enhanced resistance against agglomeration and uptake by the RES of the liver and spleen. The particles essentially consist of an iron oxide core and a phosphoric acid mono alkyl or alkenyl ester or glycerophospholipid/surfactant three dimensional shell surrounding the core. The core and the monoester or a micellar glycerophospholipid form an urchin-like structure which is further interlaced or intertwined with a non-ionic surfactant to produce a protective three dimensional shell which renders particles almost undetectable by the macrophages. Particles prepared according to the invention are kept in the blood circulation for long periods and represent excellent long lasting blood pool agents. Key components in the shell are (a) a polybasic mineral-organic species such as glycero phosphatidic acid in micellar form and (b) a block copolymer having successive hydrophilic and hydrophobic segments.

Abstract: A soil top dressing is comprised of a mixture of sand, clay, a plasticizer material, water, and a coloring pigment, if desired. The components of the soil composition are preferably present in the following proportions by weight: sand 50-70%; clay 10-40%; plasticizer 0.5-5.0%; water 5-20%; coloring pigment 1-5%; all coated with kelp meal granules (5-20%). The method of making the invention involves continuously mixing a portion of the sand and the plasticizer in an agitation mixer. The sand becomes coated with the plasticizer, whereupon a quantity of clay is then added, followed by an additional portion of the plasticizing material. It is particularly important that the sand particles become coated with the plasticizing compound and clay. The coloring pigments are added and mixed thereafter. The foregoing particles are thereupon coated with particles of kelp meal. As soon as complete mixing takes place, material can be immediately transferred from the mixer to suitable packaging.

Abstract: The invention relates to an aqueous suspension for diagnostic or immunodiagnostic tests, comprising non-polymer nuclei surrounded by a hydrophilic copolymer that contains functional groups, and also to a method for the preparation of this suspension. The method involves adding a monomer mixture to a colloidal dispersion of non-polymer particles, the monomer mixture being so chosen that the resultant copolymer has a charge of identical sign to that of the original dispersion. The invention also relates to a method for the detection of a specifically binding substance or immunochemically active component in a test fluid, and to a reagent and a test kit to be used when employing said detection methods.

Abstract: Moldable ferromagnetic particles and method of making a magnetizable molding therefrom. The ferromagnetic particles are spray-coated with a slurry comprising insoluble thermoplastic particles suspended in a solution of a soluble polymer to produce a coating on the ferromagnetic particles which comprises a majority of the insoluble thermoplastic particles embedded in a lesser amount of a binder polymer. When compression molded, the insoluble thermoplastic particles form a continuous matrix for the ferromagnetic particles.

Abstract: This invention provides an extremely porous xerogel dried at vacuum-to-below supercritical pressures but having the properties of aerogels which are typically dried at supercritical pressures. This is done by reacting the internal pore surface of the wet gel with organic substances in order to change the contact angle of the fluid meniscus in the pores during drying. Shrinkage of the gel (which is normally prevented by use of high autoclave pressures, such that the pore fluid is at temperature and pressure above its critical values) is avoided even at vacuum or ambient pressures.

Abstract: The invention provides phospholipid coated particles capable of specifically binding antiphospholipid antibodies and a method for preparing such particles. Methods are also provided for determining antiphospholipid antibodies in a serum or plasma. Also provided are methods for isolating antiphospholipid antibodies from a fluid and for raising specific antiphospholipid antibodies.

Abstract: Microcrystalline chitosan is used in seed encrusting in the form of liquid dispersion containing 0.0001-10 wt. % of polymer characterized by average molecular weight not lower than 1000, water retention value ranging from 200 to 5000%, deacetylation degree not lower than 35%, particle size in the range of 0.1-100 .mu.m and energy of hydrogen bonds in a form of film of 10-25 kJ/mol. The liquid dispersion is introduced by spraying or mixing with a content of polymer not lower than 0.01 wt. %, whereafter the excess of solvent is removed and polymer film covering the seed is formed.

Abstract: A process for preparing water-based pyrotechnic active compositions containing metal powder is described, which comprises coating the metal powder with a plastic which is insoluble in dilute acids and water and is substantially impermeable to water and oxygen, the coating being present in a quantity of not more than 5 per cent by weight, relative to the total mass of the metal powder, and suspending the powder obtained in water, mixing it with the other constituents of the active composition and bringing it to the desired shape, the coating of the metal powder preferably being carried out by the fluidized-bed process.

Abstract: A method for preparing deagglomerated fibres and/or particles and for providing the fibres and/or particles with a substantially uniform protective coating, the fibres and/or particles being of a material selected from the group consisting of carbides oxides, nitrides, silicides, borides, metals and graphite, including SiC, TiC, ZrC, WC, NbC, AlN, TiN, BN, Si.sub.3 N.sub.4, MgO, Al.sub.2 O.sub.3, SiO.sub.2, ZrO.sub.2, Fe.sub.2 O.sub.3, Y.sub.2 O.sub.3, steel, tungsten, molybdenum and carbon, the method comprising (a) preparing an inorganic colloid sol, and (b) mixing the fibres and/or particles are deagglomerated and substantially homogeneously distributed. The fibres and/or particles, e.g. SiC whiskers provided with an aluminum oxide coating by treatment with an aluminum hydroxide-based sol, are used for the preparation of metal matrix composite materials, e.g. based on aluminum or an aluminum alloy.

Abstract: Storage stability of finely divided sodium percarbonate is improved by melt-coating of water-insoluble encapsulation agents.

Abstract: Disclosed are a method of coating a granular material comprising steps of: dropping a granular material from an upper portion in a draft disposed in a coating apparatus; spraying the granular material during falling with a coating solution containing a film-forming material dissolved in a solvent in the draft; drying the granular material sprayed with the coating solution by a drying gas flowing upwardly from a lower portion to an upper portion in the draft; and carrying the dropped granular material to an upper portion in the coating apparatus, and a coating apparatus for coating a surface of a granular material with a coating solution while dropping the granular material, comprising a guide for guiding the granular material, coating solution spray nozzles disposed inside a draft and a means for supplying a drying gas upwardly from a lower portion to an upper portion to the granular material falling in the draft.

Abstract: A coating method which is characterized in that, when the surfaces of solid particles kept flowing are spray-coated with a thermally melted wax, a two-fluid nozzle adapted to mix a thermally melted wax with a heating gas in and eject the resultant mixture from one flow passage and eject a heating gas from the other flow passage is used, the two-fluid nozzle having spray ports of a diameter of 1.5 to 5.8 mm, and the two-fluid nozzle having no needle valve. According to this method, the use of an organic solvent for melting wax is omitted, and complicated operations for pulverizing a wax and for thermally melting the wax powder after it has been deposed on solid particles are not required. This method can also prevents clogging of the nozzle, powdering of the melted wax and forming of agglomerated solid, and permits simple and easy production of sustained release preparations and preparations for masking materials of unpleasant and bitter tastes.

Abstract: This invention relates to wax capsules containing a structuring agent for encapsulation of an active material which is unstable in a liquid environment. The structuring agent is selected from the group of a hydrophobic silica, a hydrocarbon material and a molecular weight of about 50,000 to about 5,000,000 and an organophilic clay. The invention is especially useful for encapsulation of a surfactant. A process of making the capsules is also described.

Abstract: A fiber preform constituting the fiber reinforcement of the part to be made is itself made by shaping and consolidating a fiber fabric by a liquid process. An interphase layer between the fibers and the matrix is formed on the consolidated preform prior to densification thereof with the matrix, such that the operation of densifying the consolidated preform can be performed without requiring supporting tooling therefor.

Abstract: Passivated metallic pigments obtainable by gas-phase decomposition of volatile phosphorus compounds and of volatile nitrogenous silicon compounds with steam and/or oxygen in the presence of the agitated pigment particles, and the production of these pigments and their use for coloring water-based printing inks, other inks and paints.

Abstract: A histamine diagnostic assay device is provided in which glass microfibers treated with a polar organic polymer are deposited onto a carrier and used to selectively bind histamine in a sample. The polar organic polymer reduces the affinity of the glass microfibers for interfering components of the sample while substantially retaining the histamine-binding capacity. Preferably, the glass microfibers are provided as a conglomerate with the polar organic polymer. An agent which induces the release of histamine from cells in the sample may be included in the device.

Abstract: A process for producing nonionic detergent granules having a bulk density of from 0.6 to 1.2 g/ml is disclosed, which comprises the following steps (1) to (3):(1) mixing a detergent material comprising a nonionic surfactant;(2) granulating a mixture obtained in said step (1) by agitating in an agitating mixer provided at the center position thereof with a rotation shaft having an agitation impeller with a clearance between the agitation impeller and an inner wall of the mixer, wherein the agitation impeller agitates the mixture to form an adhesion layer of said mixture on said inner wall of said mixer so as to increase a bulk density of granules of the mixture; and(3) mixing the granules obtained in said step (2) with fine particles to thereby coat the surface of the granules with the fine particles.

Abstract: This invention provides a dispersion composition comprising (a) water and (b) a silylated epoxy resin prepared by reacting (i) a silane having at least two silicon atoms each bearing at least one hydrolyzable group and attached to a secondary amine by a hydrocarbon and (ii) a resin containing at least two epoxy groups and methods of using the dispersion.

Abstract: A novel inorganic particulate powder coated with an organic polymer is claimed. The product is obtainable by dispersing in water inorganic particles at a pH higher than their isoelectric point in the presence of a polymeric polybasic acid as a dispersing agent to produce particles having a modified isoelectric point. The pH of the dispersion is then adjusted to a value below 9 but above the modified isoelectric point and an ethylenically unsaturated monomer is polymerized in the presence of the dispersion so as to coat the inorganic particles with polymerized monomer. A method for forming the particles is also claimed.The particles prepared by the method have been shown to be uniformly and discretely coated with an organic polymeric coating and can be used in many applications where it is desired to disperse inorganic particles in organic media such as paints, inks and plastics compositions.

Abstract: A process is provided for making bulk calcium magnesium acetate in a substantially pure crystalline form. The crystalline CMA contains less than about 0.5% of water soluble impurities.

Abstract: A process for the preparation of a dry adsorbable extract of at least one active ingredient, comprising the steps of: first, preparing an extract of the active ingredient in a solvent medium specific to the active ingredient; second coating granules of an absorbent carrier with the extract; third drying and calibrating to a predetermined size the coated granules; and finally absorbing the coated granules produced in step 3 in and on porous excipient nebulized microgranules, which have cavities and ducts which are partially filled by the coated granules, with a ratio of between 5 and 20 parts by weight of coated granules to 100 parts microgranules.

Abstract: A process of producing hydrophobic titanium oxide fine particles, comprising the steps of dispersing titanium oxide fine particles in an aqueous alkaline solution, adding a trialkoxysilane to the resulting dispersion in an amount of 1 to 1,000 parts by weight per 100 parts by weight of the titanium oxide fine particles, and carrying out the hydrolysis, whereby a film of a hydrolysis condensation product of the trialkoxysilane is formed on the surface of the titanium oxide fine particles. According to the present invention, titanium oxide fine particles can be treated quite effectively to be rendered hydrophobic without damaging the powdery nature of the titanium oxide.