Abstract: Dispersibility of extender pigments in ink formulations is improved by using as the extender pigment, a quaternary ammonium treated kaolin clay.

Abstract: TiO.sub.2 -based chromatic pigments are provided by coating core particles of TiO.sub.2 having a mean particle size from 0.01 to 0.1 .mu.m with a layer of metal oxide of Ni, Co, Ce, Cu, Cr, Mn, V, W or a mixutre thereof.

Abstract: A coated abrasive article having a printed coating of electrically conductive ink incorporated in the construction thereof, such that the buildup of static electricity during the use of the article is either reduced or eliminated. In another respect, a method to make the same is taught.

Abstract: A coating composition comprising a colloidal silica, an organohydroxysilane, a partial condensate of the organohydroxysilane and a liquid medium containing ethylene glycol monobutyl ether in an amount of at least 20% by weight, which is applied to a substrate, shows excellent properties such as storage stability, workability for coating or painting, heat resistance, surface hardness, chemical resistance, abrasion resistance, scratch resistance, stain resistance and weather resistance.

Abstract: Polyaniline fibers are spun from stable solutions of the polymer in certain amine solvents.

Abstract: A high temperature, preferably polycrystalline, ceramic fiber having a selectable diameter of between 1 and 200 microns. The fiber is stable in an inert atmosphere at a temperature above about 1700.degree. C. and is often stable even in air at a temperature above 1500.degree. C. The fiber comprises a sintered ceramic powder having a maximum particle size less than the diameter of the fiber and an average particle size less than 0.2 times the diameter of the fiber. The ceramic powder is also stable in an inert atmosphere at a temperature above about 1700.degree. C. At least 90% of the ceramic is selected from borides, nitrides, carbides, and silicides. The fiber is characterized by a smooth surface and is preferably out of round.The invention further comprises a textilable sinterable filament, comprising a flexible polymer matrix containing high temperature sinterable ceramic powder particles. The ceramic powder particles are selected from ceramic borides, nitrides, carbides, and silicides.

Abstract: The present invention discloses an improved method for forming stable dispersions of particulate matter. In particular, the present invention relates to a method of forming stable dispersions of particulate matter in both organic and silicone-based fluids.

Abstract: The invention relates to cement compositions and methods of use for cementing oil and gas and/or geothermal wells which reduce thermal thinning of slurries at elevated downhole temperatures. To combat thermal thinning, latex is added to a cement slurry without a latex stabilizing surfactant resulting in a slurry having low mixing viscosity and good solids suspension properties at downhole temperatures.

Abstract: An abrasive tape comprises a flexible substrate and an abrasive layer, which is overlaid on the flexible substrate and which is primarily constituted of abrasive grains and a binder. The abrasive grains are composed of first abrasive grains and second abrasive grains. The first abrasive grains and the second abrasive grains are constituted of at least one type of angular grains which are selected from the group consisting of Cr.sub.2 O.sub.3, SiC, and Al.sub.2 O.sub.3, and which are obtained from a pulverizing process. The mean grain diameter of the first abrasive grains falls within the range of 6 .mu.m to 9 .mu.m. The mean grain diameter of the second abrasive grains falls within the range of 4 .mu.m to 6 .mu.m. The binder is contained in a proportion falling within the range of 10% by weight to 30% by weight with respect to the abrasive grains. A 40% by weight to 65% by weight portion of the binder is constituted of a polyisocyanate.

Abstract: A high alumina ceramic composition has controlled small amounts of MgO and CaO. When refractories made from the composition are fired, the alumina and MgO react to form spinel. The CaO promotes such reaction while minimizing undesirable expansion, and results in a refractory having significantly improved hot strength and other desirable physical properties.

Abstract: A method is provided for improving the optical performance of fluorescent coatings. The appearance of fluorescent coatings is improved by the use of hollow polymer particles which scatter ultraviolet light and shorter wavelength visible light. These hollow polymer particles may be employed as an additive in a fluorescent coating, as an additive in a basecoat onto which a conventional fluorescent coating is applied, or as an additive in both the fluorescent coating and the basecoat onto which the fluorescent coating is applied.

Abstract: A recording liquid, comprising a recording agent which is a component that forms a recorded image and a liquid medium in which said recording agent is dissolved or dispersed, wherein said recording agent comprises a dye represented by the Formula (A) ##STR1## wherein R.sub.1 and R.sub.2 are selected from the group consisting of a hydrogen atom, a methyl group, a methoxy group, a chloro group, a sulfonic acid group; X represents a residual group of an organic acid; and M represents a base selected from the group consisting of an alkali metal group, an ammonium group, and an organic amine group and at least one dye selected from the group consisting of C.I. Acid Red 131, C.I. Acid Red 274, C.I. Direct Red 227 and C.I. Direct Red 9.

Abstract: Provided is an ink composition which comprises a fluorescent dye. The ink composition is useful in tagging for subsequent identification various articles having a polymeric or porous organic or inorganic surface. The ink composition comprises a non-fluorescent ink such as a black ink, a fluorescent dye, and a solvent for the fluorescent dye, which solvent swells and impregnates the surface of the article thereby permitting impregnation of the article by the fluorescent dye. The resulting tagged article has a printed surface with a fluorescent dye impregnated within the article directly beneath the printing on the surface. Identification of the article can then take place by removing printed material, and subjecting the article to UV irradiation. Observing a bright fluorescent color characteristic of the fluorescent dye used confirms the authenticity of the article.

Abstract: This invention provides a carbon-containing ceramic composite for molten non-ferrous metal, the composite being a sintered ceramic body to be used in contact with molten non-ferrous metal, the sintered body containing an aggregate of silicon carbide and/or silicone nitride, the sintered body being characterized in that it comprises,(a) 100 parts by weight of the aggregate,(b) 5 to 45 parts by weight of flake graphite, and(c) boron carbide in an amount of 10 to 40% by weight based on the flake graphite.

Abstract: A process for producing a dried particulate ceramic material in which a cake comprising a dispersion of at least 25% by volume of particulate ceramic material in a liquid medium is subjected to rapid drying. Also, a dried particulate ceramic material which may be dispersed in a liquid medium to form a dispersion containing at most only a small proportion of aggregates of the primary particles of the ceramic material.

Abstract: An ink comprises a dye and a liquid medium, wherein said dye is a dye represented by the following Formula: ##STR1## wherein R.sub.1 and R.sub.2 each represent hydrogen atom, a methyl group, a methoxy group or --SO.sub.3 M, R.sub.3 and R.sub.4 each represent a methyl group, methoxy group or an acetylamino group; X represents an acetyl group, a benzoyl group, --SO.sub.2 C.sub.6 H.sub.5, --SO.sub.2 C.sub.6 H.sub.4 --CH.sub.3, or --N.sub.3 C.sub.3 (NHR.sub.5)(NHR.sub.6), where R.sub.5 and R.sub.6 each represent a hydrogen atom, or --C.sub.2 H.sub.4 OH; and M represents an alkali metal, an ammonium group, or an organic ammonium group. An ink-jet recording process comprising applying the ink to a recording medium.

Abstract: A method for incorporating siloxane into a water-resistant, gypsum-based article is disclosed, comprising, (A) adding said siloxane to water; (B) mixing said siloxane/water mixture with calcined gypsum to form an aqueous slurry; and (C) allowing said slurry to set to form a set gypsum-based, water-resistant article.

Abstract: There is provided a new electro-optical effect composition having the general formula:(1-x)Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3 --xPbTiO.sub.3wherein 0.5.ltoreq..times..ltoreq.0.40.

Abstract: An electroless Pb-Sn alloy plating bath composition is obtained by mixing at least one of methane sulfonic acid, 1-hydroxyethane-1, 1-diphosphoric acid and a salt of 1-hydroxyethane-1, 1-diposphoric acid, compounds for forming Pb-Sn alloy and a reducing agent.

Abstract: The present invention employs poly(ethyloxazoline) as a temporary binder and lubricant during the preparation of greenware articles. According to the present invention, molten poly(ethyloxazoline) promotes the compressibility of the powder used to form the greenware article, thus improving the density and strength of both the greenware and the abrasive article. The molten poly(ethyloxazoline) acts as a lubricant to permit a more efficient grain rearrangement under applied pressure and thereby increases the average density of the greenware article by 6 to 8 percent as compared to standard cold pressing.