Abstract: A solvent-free composition contains the following components: 2,4,7,9-tetramethyl-5-decyne-4,7-diol, ethoxylates thereof, and polyethylene glycols, wherein the composition contains water and wherein the concentration of 2,4,7,9-tetramethyl-5-decyne-4,7-diol is greater than 40% by weight, based on the composition.

Abstract: The present invention concerns a suspension of a polymer comprising, in addition to said polymer, a) a liquid medium; b) a monovalent cation salt; c) an alginate.

Abstract: Provided is a gas sensor comprising a gas-sensitive layer consisting of nickel oxide (NiO) doped with chrome (Cr) so as to selectively detect methylbenzene gas. The gas sensor, according to the present invention, has a gas-sensitive layer consisting of Cr-doped NiO. The gas sensor exhibits superior selectivity for methylbenzene gas when compared to other gases. The gas sensor can be easily and mass produced according to the production method of the present invention and is not affected by the microstructures of the material forming the gas-sensitive layer. The present invention relates to a gas sensor exhibits a negligible sensitivity of benzene, formaldehyde, and alcohol and exhibits significantly high selectivity and sensitivity of methylbenzene gas such as xylene and toluene when the NiO sensor material with a hierarchical structure favorable to gas dispersion and response is doped with Cr.

Abstract: The present disclosure is directed to a composition comprising activated magnesium hydroxide, a thickening agent for said magnesium hydroxide, water, an emulsifier, and an oil comprising tall oil fatty acid. In certain embodiments, the composition contains no caustic soda or hydrogen peroxide. The composition comprises from about 5% to about 70% by weight magnesium hydroxide, based upon the weight of the composition. The composition is useful in pulp deinking. In certain embodiments, the thickening agent may be xanthan gum, and the emulsifier may be sodium lauryl sulfate.

Abstract: The present invention provides calcium phosphate platelets with a length between 250 nm and 800 nm and methods for producing the calcium phosphate platelets. The platelets may be used to provide dispersions or colloidal dispersions obtained by suspending the platelets in the presence of a dispersing agent. The platelets may be used in reinforcing fillers, polishing agents, building materials, additives for oral formulations, in dentrifices or in encapsulating agents.

Abstract: This invention relates to a method of making a composition comprising a colloid comprising particles having a colloidal silica core and a shell, said method comprising the steps of: simultaneously introducing into a vessel a first liquid stream containing silica core particles, a second liquid stream containing a polymer having amine functionalities; and a third liquid stream having a pH adjusting substance such that said vessel is maintained at a pH below 6.0, and followed by readjusting the pH of the colloid to a pH between about 7-10; the addition of a cross-linking reagent, and adjusting the pH of the colloid to approximately physiological conditions, wherein the core-shell colloid contains between 10 and 30 ?mol amine-monomer/m2 core surface area.

Abstract: A photocatalytic coating composition comprising photocatalytic titanium oxide, silver, copper and a quaternary ammonium hydroxide. The photocatalytic coating composition may include a photocatalytic titanium oxide sol dispersed in a binder. Furthermore, a photocatalytic member includes a substrate having a surface coated with the photocatalytic coating composition. The photocatalyst coating composition can contain highly antibacterial silver by skillfully utilizing copper and a quaternary ammonium hydroxide, and accordingly can show an antibacterial effect not only in a dark place simply due to silver, but also a higher antibacterial effect in a conventional application of employing ultraviolet sterilization by concomitantly using the photocatalyst titanium oxide sol according to the present invention and an ultraviolet sterilizer.

Abstract: The invention provides a method for producing ceramic nanoparticles, which comprises hydrolyzing a ceramic material in a thin film fluid formed between processing surfaces arranged to be opposite to each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other.

Abstract: An antipenetrating agent is to be added to a solvent ink for preventing penetration of the solvent ink into a medium to be printed. The antipenetrating agent includes inorganic fine particles and a resin soluble in an organic solvent.

Abstract: A process for the production of nano-structured olivine lithium manganese phosphate (LiMnPO4) electrode material comprising of the following steps: sol gel preparation in a chelating environment; preparation of lithium manganese phosphate/carbon composite by ball-milling; and electrode preparation.

Abstract: A slurry and method are disclosed for low damage gravel packing. The slurry comprises a solids mixture comprising a plurality of volume-averaged particle size distribution (PSD) modes such that a packed volume fraction (PVF) exceeds 0.75; a carrier fluid in an amount to provide a solids volume fraction (SVF) less than the PVF of the solids mixture; and a stability additive to inhibit settling of the solids mixture. The method comprises circulating the slurry into a wellbore to deposit the slurry downhole; terminating the slurry circulation for a period of time, wherein the stability additive inhibits settling of the solids mixture; and thereafter circulating the deposited slurry in contact with a surface of a screen. Stability additives disclosed include colloidal particles, hydratable polymer particles, and particles having an aspect ratio above 6.

Abstract: The present invention provides a process for dewatering a mineral slurry concentrate and increasing the production of the resulting filter cake consisting essentially of mixing an aqueous mineral slurry concentrate with an effective amount of a nonionic surfactant and an effective amount of a cationic polymer to form a nonionic surfactant and cationic polymer treated aqueous mineral slurry concentrate, and subjecting the treated aqueous mineral slurry concentrate to a liquid water removal process for dewatering the treated aqueous mineral slurry and for increasing the production of a resulting filter cake of the dewatered mineral slurry. An improved mineral slurry concentrate composition and an improved mineral concentrate filter cake is also disclosed.

Abstract: Methods for producing electronic grade metal nanostructures having low levels of contaminants are provided. Monolayer arrays, populations, and devices including such electronic grade nanostructures are described. In addition, novel methods and compositions for production of Group 10 metal nanostructures and for production of ruthenium nanostructures are provided, along with methods for recovering nanostructures from suspension.

Abstract: The invention provides colloidal dispersions of calcium phosphate platelets comprising at least one polymer which complexes the calcium and in which the length of the platelets, L, is between 5 and 500 nm and in which the thickness of the platelets is between 0.5 and 20 nm. Another subject-matter of the invention is the calcium phosphate platelets obtained by drying the colloidal dispersion according to the invention. The invention also provides a process for preparing these colloidal dispersions of calcium phosphate platelets according to the invention. Finally, another subject-matter of the invention is the use of the abovementioned colloidal dispersions of platelets as food additive, reinforcing filler, thermal insulation filler, pharmaceutical excipient, polishing agent, building materials, additive for oral formulations, in particular dentifrices, or encapsulating agent.

Abstract: A modified sol-gel method to create metal-rich siliceous material, such as colloidal silica or aluminosilicate particles is disclosed. Initially, the metal salt of choice is added to a silicic acid solution or a silicic acid solution containing aluminum salt. The aluminum is added to vary the metal-support interaction as it forms Al—O—Si linkages within the silica matrix. Besides aluminum, other metals can be added that form M—O—Si (M=Ti, B, etc.) linkages, which do not become reduced when treated with a reducing agent. Once the metal, silicic acid and/or aluminum salt is generated, it is subjected to colloidal growth by addition to a basic heel. Upon colloidal synthesis, the metal salt containing colloidal particle is left as is to maximize colloidal stability or is reduced with hydrazine to produce the zero valence metal-containing colloidal particle.

Abstract: A low viscosity filler boron nitride agglomerate particles having a generally spherical shape bound together by an organic binder and to a process for producing a BN powder composition of spherically shaped boron nitride agglomerated particles having a treated surface layer which controls its viscosity.

Abstract: A photocatalytic titanium oxide sol presents antibacterial properties in a dark place, and, in particular, relates to a photocatalytic titanium oxide sol which is stable and causes no discoloration by light even though containing silver, and relates to a coating composition and a member using the same. The photocatalytic titanium oxide sol includes silver, copper and a quaternary ammonium hydroxide, may be dispersed in a binder, and may be coated on the surface of a substrate.

Abstract: The invention provides colloidal dispersions of calcium phosphate platelets comprising at least one polymer which complexes the calcium and in which the length of the platelets, L, is between 5 and 500 nm and in which the thickness of the platelets is between 0.5 and 20 nm. Another subject-matter of the invention is the calcium phosphate platelets obtained by drying the colloidal dispersion according to the invention. The invention also provides a process for preparing these colloidal dispersions of calcium phosphate platelets according to the invention. Finally, another subject-matter of the invention is the use of the abovementioned colloidal dispersions of platelets as food additive, reinforcing filler, thermal insulation filler, pharmaceutical excipient, polishing agent, building materials, additive for oral formulations, in particular dentifrices, or encapsulating agent.

Abstract: Nanowire dispersion compositions (and uses thereof) are disclosed comprising a plurality of inorganic nanowires suspended in an aqueous or non-aqueous solution comprising at least one low molecular weight and/or low HLB (Hydrophile-Lipophile Balance) value dispersant. Methods of further improving the dispersability of a plurality of inorganic nanowires in an aqueous or non-aqueous solution comprise, for example, oxidizing the surface of the nanowires prior to dispersing the nanowires in the aqueous or non-aqueous solution.

Abstract: Aqueous dispersion containing a metal oxide powder with a fine fraction and a coarse fraction, in which—the metal oxide powder is silicon dioxide, aluminum oxide, titanium dioxide, zirconium dioxide, cerium oxide or a mixed oxide of two or more of the aforementioned metal oxides,—the fine fraction is present in aggregated form and has a mean aggregate diameter in the dispersion of less than 200 nm,—the coarse fraction consists of particles with a mean diameter of 1 to 20 ?m, —the ratio of fine fraction to coarse fraction is 2:98 to 30:70, and—the content of metal oxide powder is 50 to 85 wt. %, referred to the total amount of the dispersion. The aqueous dispersion is produced by a process comprising the steps:—production of a fine fraction dispersion by dispersing the pulverulent fine fraction in water by means of an energy input of at least 200 KJ/m3?, and—introducing the coarse fraction in the form of a powder into the fine fraction dispersion under dispersing conditions at a low energy input.

Abstract: Methods for manufacturing nanomaterial dispersions, such as nanomaterial concentrates, and related nanotechnology are provided. The nanomaterial concentrates provided can be more cheaply stored and transported compared to non-concentrate nanomaterial forms.

Abstract: The present invention provides a method of gel-casting WC—Co cemented carbide powder, where the resulting gelled body can be of complex shape and has a high green density, a good homogeneity and sufficiently good mechanical properties for the gelled body to be demolded and dried without significant shape-distortions and cracking. The method relates to the forming of a gelled body through the gelling of an aqueous slurry of WC—Co cemented carbide powder with good dispersion characteristics, where the gelling is achieved by the temperature induced polymerization reaction between a monomer and a cross-linker, catalyzed by a free-radical initiator. By further subjecting the body to drying, heating, and sintering, a dense cemented carbide body is obtained.

Abstract: A method for producing an inorganic nanoparticle dispersion liquid, including: substituting a first dispersion medium serving to disperse inorganic nanoparticles in an inorganic nanoparticle dispersion liquid by a second dispersion medium with a third dispersion medium intervening between the first dispersion medium and the second dispersion medium, wherein an absolute value of the difference in solubility parameter values (SP values) between the third dispersion medium and the second dispersion medium is smaller than 3.

Abstract: A method of use of polyaminomethylenephosphonates as dispersing, wetting, and/or stabilizing agents in formulations for cements, detergents, ceramic materials, dyes, synthetic resins, rubbers, drilling fluids, and for reverse osmosis includes the step of adding a polyaminomethylenephosphonate having the formula: wherein n is an integer higher than 2, M is an alkaline metal or the ammonium ion, and R is: —CH2PO3M2; —CH2Z, wherein Z is —CH2OH, —CHOHCH3, —CHOHCH2Cl, or —CHOHCH2OH; —(CH2)mSO3M, m being 3 or 4; —CH2CH2T, wherein T is —CONH2, —CONH2, —CHO, —COOQ, —COOX, CN, wherein Q is —CH3 or —C2H5 and X is an alkaline metal ion or the ammonium ion; and wherein the polyaminomethylenephosphonate is present in a weight quantity of over 0.01% with respect to the total weight of the formulation.

Abstract: The invention is to provide a process for industrially advantageously producing InP fine particles having a nano-meter size efficiently in a short period of time and an InP fine particle dispersion, and there are provided a process for the production of InP fine particles by reacting an In raw material containing two or more In compounds with a P raw material containing at least one P compound in a solvent wherein the process uses, as said two or more In compounds, at least one first In compound having a group that reacts with a functional group of P compound having a P atom adjacent to an In atom to be eliminated with the functional group in the formation of an In-P bond and at least one second In compound having a lower electron density of In atom in the compound than said first In compound and Lewis base solvent as said solvent, and InP fine particles obtained by the process.

Abstract: The present invention provides a metal nanocolloidal liquid characterized by containing a dispersion medium and nanocolloidal metal particles, and containing substantially no protective colloid-forming agent; and a method for producing a metal-on-carrier, characterized by including causing nanocolloidal metal particles to be carried on a carrier by use of the metal nanocolloidal liquid. According to the production method, nanocolloidal metal particles can be efficiently caused to be carried on a carrier, and a metal-on-carrier which is useful in a variety of fields can be industrially advantageously produced.

Abstract: The invention relates to a composition comprising a colloid which is stable under physiological pH and ionic strength, said colloid comprising particles having a silica core and a shell: a) wherein said shell comprises a cross-linked poly(ethylene)imine polymer having amine functionalities; b) wherein the particles have a volume-weighted mean particle size diameter of less than 200 nm, and c) wherein greater than 50% of said polymer in the colloid is bound to the core surfaces, wherein the polymer having amine functionalities has an average molecular weight less than 100,000 g/mol, the composition has a H of between 6 and 8; and d) wherein the colloid contains between 300 and 6000 .?mol amine-monomer/g core particles.

Abstract: A method for preparing a ceramic powder suspension is disclosed. A dispersant having a following structural formula is provided: wherein D is H or COOR1; R1 is a hydrogen atom, or an alkyl group, a cyclic aliphatic group, an aryl group, having 1 to 10 carbon atoms, or a cationic salt group; R2 is an alkyl group having 1 to 10 carbon atoms, a cyclic aliphatic having 1 to 10 carbon atoms or an aryl group having 1 to 10 carbon atoms; R3 is a hydrogen atom or a methyl group; Z is an oxygen atom or an NH group; A is —COO —SO3 or an acid form; a is an integer between 1 to 5000; and p and q are integers between 1 to 10. The dispersant is dissolved in a solvent. Ceramic powder is further added into the solvent with the dispersant.

Abstract: Metal-containing colloids are manufactured by reacting a plurality of metal ions and a plurality of organic agent molecules to form metal complexes in a mixture having a pH greater than about 4.25. The metal complexes are reduced for at least 0.5 hour to form stable colloidal nanoparticles. The extended reduction time improves the stability of the colloidal particles as compared to shorter reduction times. The stability of the colloidal particles allows for colloids with higher concentrations of metal to be formed. The concentration of metal in the colloid is preferably at least about 150 ppm by weight.

Abstract: A method for processing a ceramic powder suspension includes providing a dispersant having the following structure: wherein R1 is an H+ ion, an Na+ ion, an NH4+ ion or other cationic group; R2 is an H+ ion, an Na+ ion. an NH4+ ion or other cationic group; m is an integer from 10 to 5000 ; and n is an integer from 10 to 3000 . The dispersant is dissolved in a solvent. Ceramic powder is further added into the solvent with the dispersant.

Abstract: An object of the present invention is to provide a process to obtain a calcium carbonate material comprising GCC and PCC, presenting a fraction of particles finer than 1 ?m of greater than 80%, preferably of greater than 85%, more preferably of greater than 90%, and even more preferably of greater than 95%, and a specific surface area of less than 25 m2/g, in a cost efficient manner, wherein GCC and PCC are co-ground, possibly with at least another mineral material. An other object of the present invention lies in the co-ground calcium carbonate material in the form of an aqueous suspension and in the form of a dry product. An other object of the present invention lies in the uses of such products in any sector making use of mineral material, and notably in the paper, paint and plastic industries.

Abstract: The present invention provides a process for dewatering a mineral slurry concentrate and increasing the production of the resulting filter cake consisting essentially of mixing an aqueous mineral slurry concentrate with an effective amount of a nonionic surfactant and an effective amount of a cationic polymer to form a nonionic surfactant and cationic polymer treated aqueous mineral slurry concentrate, and subjecting the treated aqueous mineral slurry concentrate to a liquid water removal process for dewatering the treated aqueous mineral slurry and for increasing the production of a resulting filter cake of the dewatered mineral slurry. An improved mineral slurry concentrate composition and an improved mineral concentrate filter cake is also disclosed.

Abstract: An emulsion coagulant for coagulating a tire puncture sealant containing emulsion particles includes a mineral which induces aggregation of the emulsion particles by one or both of weakening of surface charge of the emulsion particles and formation of hydrogen bond between the mineral and the emulsion particles, and a gelation agent. The emulsion coagulant enables easy recovery of the tire puncture sealant from a tire as well as easy disposal of the recovered sealant.

Abstract: In one aspect, the invention provides a stable dispersion comprising a continuous phase comprising a continuous liquid phase and a plurality of organic nanoparticles; and a dispersed phase comprising particles dispersed in the continuous phase.

Abstract: In one aspect, the invention provides a stable dispersion comprising a continuous phase comprising a continuous liquid phase and a plurality of organic nanoparticles; and a dispersed phase comprising particles dispersed in the continuous phase.

Abstract: The present invention provides a sol of spinous inorganic oxide particles not containing coarse particles, in which particles having extremely homogeneous particles are dispersed in a solvent. An acidic silicic acid is added to a dispersion liquid of core particles to grow core particles, and then again the acidic silicic acid is added at the addition rate 1.2 to 1.8 higher than that in the previous step to prepare a sol of spinous inorganic oxide particles. Then the sol is subjected to centrifugation to remove coarse particles having the diameter of 800 nm or more, thus spinous inorganic oxide particles having peculiar form such as a spinous one being obtained.

Abstract: A purifying agent for purifying soil or ground water which comprises a water suspension containing iron composite particles comprising ?-Fe and magnetite, and having an average particle diameter of 0.05 to 0.50 ?m, an S content of 3500 to 10000 ppm and an Al content of 0.10 to 1.50% by weight, and polyaspartic acid or a salt thereof. The purifying agent is capable of decomposing aliphatic organohalogen compounds or aromatic organohalogen compounds contained in the soil or ground water in an efficient, continuous and economical manner.

Abstract: A metal nanoparticle colloid solution, metal-polymer nanocomposites, and methods for preparing the same are provided. The metal nanoparticle colloid solution and the metal-polymer nanocomposites can be prepared with a variety of polymeric stabilizers and have uniform particle diameter and shape. The metal nanoparticle colloid solution and the metal-polymer nanocomposites have wide applications, for example, as an antibacterial agent, a sterilizer, a conductive adhesiv, conductive ink or an electromagnetic wave shielder for an image display.

Abstract: A composition of matter comprising anionic clay having the general formula [M2+1-xM3+x(OH)2]x+(x/n)An?·yH2O??(I) or [M1+M3+2(OH)6]1+(1/n)An?·yH2O;??(II) where M1+ is a mono-valent metal; M2+ is a divalent metal; and M3+ is a trivalent metal; A is an inorganic or organic anion, chosen such that the rule of charge neutrality is obeyed; n is an integer; x is any rational number between 0 and 1; and y is any rational number between 0 and 10; where the anionic clay is in the form of particles having a volume weighted mean particle size diameter of less than 500 nm. Stable colloidal dispersions comprise such anionic clay particles having a volume weighted mean particle size diameter of less than 500 nm dispersed in a liquid medium.

Abstract: Produce titanium-group metal micro-dispersion water that contains ion vapor of titanium-group metal in micro-dispersed state and that can be used as a material for health products, medical products, cosmetics, etc., by using an apparatus comprising a water tank, a high-voltage discharge generator equipped with a titanium-group metal electrode and its counter electrode, a water inlet, an outlet for produced water, and a titanium-group metal electrode feeder, in a manner causing plasma discharge in water between the titanium-group metal electrode and its counter electrode.

Abstract: The present invention relates to a metal oxide particle comprising tin atom, zinc atom, antimony atom and oxygen atom, having a molar ratio SnO2:ZnO:Sb2O5 of 0.01–1.00:0.80–1.20:1.00 and having a primary particle diameter of 5 to 500 nm; and a process for producing the metal oxide particle comprising the steps of: mixing a tin compound, a zinc compound and an antimony compound in a molar ratio SnO2:ZnO:Sb2O5 of 0.01–1.00:0.80–1.20:1.00; and calcining the mixture at a temperature of 300 to 900° C. The metal oxide particle is used for several purposes such as antistatic agents, UV light absorbers, heat radiation absorbers or sensors for plastics or glass, etc.

Abstract: The present invention relates to a titanium dioxide material for coating on a substrate and method of making the same. The coated material is resistant to delamination and can be used for air-purification purposes.

Abstract: Comb polymers are used as dispersants to increase the stability of colloidal suspensions containing multivalent or high concentrations of monovalent ions. Stabilized colloidal suspensions and methods of forming stabilized colloidal suspensions are described, including suspensions containing ceramic precursors or bioactive agents useful in forming ceramic substrates or pharmaceutical compositions, respectively.

Abstract: Disclosed is a method for making amorphous spherical particles of zirconium titanate and crystalline spherical particles of zirconium titanate comprising the steps of mixing an aqueous solution of zirconium salt and an aqueous solution of titanium salt into a mixed solution having equal moles of zirconium and titanium and having a total salt concentration in the range from 0.01 M to about 0.5 M. A stearic dispersant and an organic solvent is added to the mixed salt solution, subjecting the zirconium salt and the titanium salt in the mixed solution to a coprecipitation reaction forming a solution containing amorphous spherical particles of zirconium titanate wherein the volume ratio of the organic solvent to aqueous part is in the range from 1 to 5. The solution of amorphous spherical particles is incubated in an oven at a temperature ?100° C. for a period of time ?24 hours converting the amorphous particles to fine or ultrafine crystalline spherical particles of zirconium titanate.

Abstract: The invention relates to an aqueous colloidal dispersion of a compound of cerium and at least one other element M chosen from among the rare earths other than cerium; titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, aluminium, gallium and zirconium. This dispersion is characterized in that it displays a conductivity of at most 5 mS/cm. It is obtained by a process in which there is reacted with a base a mixture of at least one salt of cerium with at least one salt of an element M mentioned above and in the presence of an acid in a quantity such that the atomic ratio H+/(Ce+M) is greater than 0.1, then the precipitate from the preceding reaction is re-dispersed in water. The dispersions of this type cane be used in catalysis, in lubrication, in ceramics, in the manufacture of luminophorous compounds, in cosmetics and as anticorrosion agents.

Abstract: A process of producing an organically modified metal oxide wherein an aqueous slurry of a metal oxide which can be peptized in the presence of an acid is admixed with an aqueous slurry of an oregano silage having the formula RySiX4-y, the mixture of the aqueous slurry and the oregano silage being thermally aged to produce a colloidal metal oxide sol which can be dried to produce a powder which is readily discernible in polar compounds such as alcohols, water and the like.

Abstract: The present invention is directed to a colloidal aqueous silicate dispersion containing silica and alumina, the molar ratio between silica and alumina being 2-12, as well as to a method for its preparation. Said method is characterized by dissolving a particulate mineral material, such as a mineral wool or fiber product containing silica and alumina in a molar ratio of 2-12 in an aqueous solution, nucleating and stabilizing the so obtained solution, and optionally adjusting the dry matter content of the dispersion so obtained. The said dispersion can also be made to gel. The invention is also directed to the use of the dispersion as a binder.

Abstract: A subject matter of the invention is a process for the preparation of particles comprising at least one metal ion, which comprises the stage of bringing into contact a precursor a metal cation, optionally partially hydrolyzed, with at least one water-soluble comb copolymer. Likewise, a subject matter of the invention is particles capable of being prepared according to the process of the invention, said particles exhibiting a mean size of between 2 and 500 nm and preferably between 2 and 300 nm. Finally, it relates to the use of such particles in the mechanical polishing of hard objects, in the preparation of pigments or mixed ceramics for the electronic industry, in the reinforcing of polymeric matrices, in fungicidal or biocidal dispersions, in the scavenging of sulfur derivatives or the scavenging of unpleasant smells.

Abstract: The present invention provides an aqueous dispersion containing at least two powder types selected from one or more metal oxide powders and/or one or more non-metal oxide powder. The present invention also provides a coating composition containing this dispersion, an inkjet recording medium containing the coating composition, and methods of making the same.

Abstract: A sol comprising diantimony pentoxide particles having a primary particle size of from 2 to 50 nm and a Sb2O3/Sb2O5 weight ratio of at most 4 wt %.