Abstract: Activated or partially activated zeolites can be included in analgesic balms or ointments as improved replacements for rubefacients. Upon hydration, the zeolite becomes warm, thereby helping to relieve pains associated with various musculoskeletal problems. An especially useful composition involves an ointment or balm that contains a combination of functional ingredients. A conventional analgesic such as a salicylate that can be absorbed through the skin supplies one form of relief that generally requires a period of time to become effective. When combined with the zeolite, which begins to hydrate at once, immediate relief is provided through the generated warmth.

Abstract: A method for binding particulate materials which involves mixing the particulate material with a solution containing lithiumions, blending sodium silicate into the mixture and subsequently shaping the mixture to the desired form and curing same by microwave radiation.

Abstract: Silicas that provide improved abrasive action when incorporated in dentifrice compositions can be prepared by dehydrating a silica hydrogel to a low water content and then reintroducing water to gel. The silica hydrogel is prepared by neutralizing a sodium silicate with an acid. This hydrogel is dried by any convenient method so that the gel contains about 15% water or less. This dried gel is rehydrated to about 30% or more. The rehydrated gel provides improved abrasion values over the prior art xerogels and hydrogels.

Abstract: Potassium silicate solutions combined with silanes that contain a hydrophilic functionality can be spray dried effectively to provide free-flowing powdered products.

Abstract: Almost complete elimination of metal ions in aqueous effluents can be effected by treating said effluent with a base and then adding amorphous, hydrated magnesium silicate. This sequential process allows metal ion concentration to be reduced to less than 0.1 part per million while using a fairly small amount of amorphous hydrated magnesium silicate.

Abstract: Silane-Zeolite composites are incorporated into phosphate free detergents as builders. The use of such composites allows compositional improvements and results in certain process advantages when compared to detergents utilizing plain zeolites as phosphate replacements. Hydrated zeolites which have been treated with functionally hydrophilic silanes do not agglomerate during incorporation into detergents. In addition, use of the silane-zeolite composite allows use of increased amounts of both the zeolite and silicate solids as builders in detergents.

Abstract: Flaked or plate-like materials that contain silicate were found to be useful as bases for the manufacture of defoaming compositions. Hollow microspheres with largely siliceous surfaces are crushed to form flaked fragments which are rendered hydrophobic by coating with a silane or silicone. The hydrophobized fragments are then dispersed in a water insoluble organic liquid to complete preparation of the defoamer. Especially useful are hollow microsphere fragments containing sodium silicate and a polysalt.

Abstract: Aqueous organic ammonium silicate-alkali metal silicate combination vehicles for zinc-rich, corrosion-resistant paints are improved by the addition of organosilicone-silicate polymers. The improvement is manifested by increased adhesion to poorly prepared metal surfaces and harder paint films.

Abstract: Silane-Zeolite composites are incorporated into phosphate free detergents as builders. The use of such composites allows compositional improvements and results in certain process advantages when compared to detergents utilizing plain zeolites as phosphate replacements. Hydrated zeolites which have been treated with functionally hydrophilic silanes do not agglomerate during incorporation into detergents. In addition, use of the silane-zeolite composite allows use of increased amounts of both the zeolite and silicate solids as builders in detergents.

Abstract: A binder system useful in formulating coatings for glass, metal, wood and especially light diffusive coatings for glass light bulb envelopes is disclosed. Excellent coatings can be formed using a binder system comprising dispersible colloidal particles of alumina and finely divided, precipitated silica. When a stable dispersion of these two materials is combined properly with a pigment and/or filler system and then dried upon a glass, metal or wood surface, a tough, continuous, tightly adhering coating is formed. By using the correct pigments, a light diffusive coating for light bulb envelopes can be formed.

Abstract: A method of indicating rheumatoid factors belonging to at least one of the immunoglobulin classes IgM, IgG and IgA in an aqueous sample is disclosed. According to this method any complement factor C1q present in the sample is pacified in a manner known per se, whereafter the sample is reacted with soluble, aggregated immunoglobulin labelled with one or more analytically indictable atoms or groups to form aggregates between rheumatoid factors and the aggregated, labelled immunoglobulin, said aggregate being precipitated out, whereafter the precipitate is separated and the analytically indicatable atoms or groups are indicated in the precipitation phase and/or in the solution.

Abstract: Zeolite NaA can be produced with a very short crystallization time, if an alumino-silicate gel of particular properties is prepared and heated at about 95.degree. C. The gel which is prepared by combining solutions of sodium aluminate and sodium silicate must contain a limited amount of water, be of a single phase and having a high viscosity. Gels of this nature can be heated for a fraction of an hour to yield essentially completely crystallized Zeolite NaA with no crystalline impurities.

Abstract: An apparatus and process for the preparation of colloidal dispersions of sodium metallo silicates, useful as coagulant aids, are disclosed. The dispersions are prepared by the controlled sequential mixing of separate streams of water, sodium silicate and a metal salt in a mixing block that has no moving parts. The apparatus and process are also useful in the mixing of other reactive solutions and fluids.

Abstract: Hydrophilic, silane-zeolite compositions, their preparation, properties and applications are disclosed. These unique composites are formed by condensing a hydrophilic silane onto the surface of a hydrated zeolite. The properties of the silane-zeolite composite are surprisingly similar to those of the zeolite without the surface modification of the silane. These composites are useful in numerous applications of zeolite, particularly in aqueous environments. The composites are particularly suited to be included in detergent compounds as the builder since they do not agglomerate with other detergent ingredients as do zeolites.

Abstract: The alkali rich raw material batch required to produce soluble alkali metal silicate glass is effectively agglomerated by contacting a concentrated alkali metal silicate solution with the agitating raw materials. Hard agglomerates that are free-flowing, storable and provide important process advantages are formed.

Abstract: Alkaline silicates such as sodium metasilicate are prepared by a method that prevents unreacted batch ingredients to come in contact with furnace walls. The method also prevents any molten material from contacting the floor of the furnace. The raw materials and unreacted melt are confined to the central portion of the furnace by maintaining vigorous bubbling around the periphery of the melting furnace. The vigorous bubbling action prevents migration of unreacted raw material to the furnace walls. The bubbling eminates from means that extend up from the furnace floor and therefore, the portion of the material in the lower part of the furnace bed is in the solid state.

Abstract: A process for the preparation of finely divided dispersible alpha-alumina monohydrate (boehmite) from alumina trihydrate is disclosed. The alumina trihydrate is calcined thereby increasing the surface area through a partial dehydration. The calcined intermediate is slurried in water and autoclaved to achieve crystallization and rehydration. Conventional drying methods are used to obtain the particles. The particle size of the product is much smaller than that of the starting raw material.