Abstract: The present invention relates to a non-hydrated bentonite intimately contacted with a polypropene, polybutene, or mixtures thereof to provide a formable and shapable non-aqueous bentonite composition particularly useful as a water barrier. The bentonite composition can be extruded in the form of a rope, rod, sheet or the like and is sufficiently tacky for adherence to a wall or conduit, floor or roof in areas of potential water flow to prevent the seepage of water through the bentonite composition. In one embodiment, the bentonite composition includes a polypropene and a polybutene and an elastomer, such as butyl rubber, having sufficient resilience to stretch or expand with the expanding bentonite upon hydration and to aid in maintaining the structural integrity and cohesiveness of the composition. In another embodiment, the composition comprises bentonite, an elastomer, and any plasticizer compatible with the elastomer.

Abstract: Aqueous plastic molding compositions based on ceramic raw materials characterized by containing a dual binder system consisting of water-soluble and/or water-dispersed air-drying high molecular weight film-forming agents, as well as of water-insoluble thermoplasts of fine particle form sinterable at temperatures below 250.degree. C. and a method of producing molded articles using the said compositions are disclosed.

Abstract: Pigment dispersions contain, as dispersing agent novel water soluble polymers containing acid groups, preferably polyacrylic acid or copolymers of polyacrylic acid with AMPS, having polydispersity below 1.5 and molecular weight in the range about 1,000 to about 5,000.

Abstract: The instant invention is directed to shear thickening fluids to prevent unwanted flow in wells penetrating subterranean formations. The shear thickening fluids comprise (1) a water swellable granular clay present in sufficient quantity so that, upon interaction with an aqueous phase, a stiff paste rapidly forms having a strength of at least 2000 lbs/100 ft.sup.2, (2) a nonaqueous phase comprising a hydrocarbon material and a surfactant, and (3) an aqueous phase comprising water and a watersoluble polymer. The granular clay and water-polymer solution are kept separated by the intervening hydrocarbon-surfactant composition, which is the continuous phase. The intervening oil phase prevents the interaction between the water-polymer phase and the granular clay and results in a stable, nonreacting, pumpable composite until such time as the granular clay is fragmented by application of a sufficiently high shear force.

Abstract: Water absorbent compositions exhibiting increased gel strengths comprise a water-swellable hydrophilic polymer and an inorganic powder and are prepared by physically blending the polymer and powder. The compositions can be incorporated into film laminates and can be employed in preparing improved disposable diapers.

Abstract: Modified fillers prepared by contacting inert, particulate, mineral fillers with aqueous solution of vinyl alcohol polymer and aqueous colloidal dispersion of cationic melamine-formaldehyde resin to obtain a filler having adsorbed thereon from about 0.1 to about 3 percent, based on dry filler weight, of each of vinyl alcohol polymer and cationic melamine-formaldehyde resin are provided. Such modified fillers are useful in papermaking.

Abstract: A method for impeding the sedimentation of clays in water by adding a water-soluble compound. This compound is constituted by a polymer bearer of hydroxamic groups attached to a linear hydrocarbon chain. The amount of this adjuvant is small on the order of a few milligrams.

Abstract: A composite material is provided by contacting a clay mineral having laminated aluminum silicate layers with an organic monomer to allow the organic monomer to be adsorbed on or intercalated between the aluminum silicate layers, and contacting the clay mineral with a silane compound having 2 to 4 chlorine atoms to promote polymerization of the organic monomer, thereby forming a composite material composed of a clay mineral having organic high polymer adsorbed thereon or intercalated therebetween. The composite material thus obtained has a strong chemical bond between inorganic clay mineral and organic high polymer.

Abstract: A wide joint latex grout composition is disclosed comprising a thermoplastic film-forming resin latex and particulate mineral filler, the fillers comprising from about 74 to about 88 percent by weight of the grout composition and possessing a wide range of particle sizes, a major proportion of the grout comprising sand. Cracking in joints up to about one inch wide is avoided by the high sand loading, and dilatancy problems expected from such high sand loadings are obviated by closely controlling the particle size distribution of the sand and other inorganic fillers.

Abstract: A shear thickening composition which comprises a water-in-oil emulsion having dispersed in the continuous, oily phase thereof, hydratable, water-expandable hydrophillic clay, said oily phase having dissolved therein a polyamine derivative surfactant and an oil-soluble amine. The aqueous phase will preferably have dissolved therein a polymer, preferably a polyacrylamide, which will flocculate and congeal the clay when same is mixed with water. These compositions are useful as well control fluids and may be used in deep wells.

Abstract: The invention relates to a process for insulating surfaces for the purpose of preventing or reducing occurrence of condensation on the surface, comprising applying to the surface a layer of a coating composition containing a binder and, distributed therein, granules of an expanded inorganic material having a bulk density of at least 150 kgs/m.sup.3. The invention also provides for a composition suitable for carrying out such process, comprising a binder and granules of an expanded inorganic material of the nature indicated.

Abstract: A thermally stable thickener is composed of a stabilizing agent and a water dispersible polyurethane. The stabilizing agent is a smectite-type clay having a cation exchange capacity of at least 75 milliequivalents per 100 grams of clay, 100% active clay basis. The water dispersible polyurethane must possess the property that it forms an aqueous composition that experiences a decrease in Stormer viscosity upon thermal aging. Aqueous compositions incorporating the thermally stable thickener may be exposed to extended periods at elevated temperatures without substantially affecting the level of thickening.

Abstract: A silicone elastomeric emulsion having improved shelf life is produced by a method which mixes the ingredients of the emulsion with the exception of a filler other than colloidal silica, then ages the mixture for at least two weeks at room temperature then adds the filler other than colloidal silica. The improved emulsion yields a film upon drying that has better physical properties. The emulsion contains an anionically stabilized, hydroxyl endblocked polydiorganosiloxane, colloidal silica, and an alkyl tin salt, as well as the filler other than colloidal silica. The emulsion has a pH of greater than 9 and a solids content of greater than 40 percent by weight. The emulsion is useful in forming a protective elastomeric coating over a substrate and as a caulking material.

Abstract: A water absorbing composite comprises an inorganic powder, and a highly absorbent resin covering the whole surfaces of the individual particles of the inorganic powder. The resin is obtained by reacting with a basic substance a polymer containing as a monomeric constituent an .alpha.,.beta.-unsaturated compound having in its molecule one or two carboxyl groups, or one or two other groups convertible to a carboxyl group or groups, and by crosslinking the reaction product with a polyamine. The composite is useful as a water retaining agent for agriculture and horticulture, or as a dehydrating agent for oil.

Abstract: Disclosed is a sealing compound for can ends excellent in the adaptability to the lining operation, which comprises an aqueous latex of a styrene-butadiene rubber, a tackifier and a filler, wherein said latex contains styrene-butadiene rubber particles having a number average particle size of from 1600 to 3000 A, which are stabilized by an emulsifier or a dispersant.

Abstract: High strength pigment binders for paper coating having increased water retention and stability are disclosed. The coating compositions comprise an aqueous synthetic polymer latex and pigment and may contain other additives used in the art of pigmented paper coating. The latex comprises a dispersed interpolymer of a vinyl ester, a polyethylenically unsaturated comonomer and a ethylenically unsaturated mono- or dicarboxylic acid and optionally an alkyl acrylate.

Abstract: The instant invention is directed to shear thickening fluids which comprise a water swellable clay capable of rapidly forming a paste having a strength of at least 2000 lbs/100 ft.sup.2 upon interaction with the aqueous phase employed and present in sufficient concentration to form such a paste, a nonaqueous phase comprising a hydrocarbon material and surfactant, and an aqueous phase comprising water and a water-soluble polymer, wherein the clay and the aqueous phase are kept separated by the intervening hydrocarbon-surfactant phase. The intervening oil phase prevents the interaction between the water-polymer phase and the clay and results in a stable, non-reacting, pumpable composite, until such time as the oil barrier is ruptured by deliberate application of a sufficiently high shear force. Upon such rupture, the materials interact resulting in a semi-rigid high strength paste.

Abstract: There is provided an aqueous dispersion type vibration-damping coating composition containing, as essential components thereof, (a) a polyvinyl acetate emulsion, (b) a polyethylene in finely divided particulate or emulsion state and (c) a flaky inorganic powder. When this composition is applied to the surface of a structural member which could be source of noise or vibrations, the coating composition displays a high vibration-damping effect over a broad temperature range from low to high temperatures and is excellent in resistance to water, heat and weathering.

Abstract: A non-aqueous taphole mix comprising a binder, a non-aqueous solvent for the binder and a refractory filler, the binder comprising a mixture of polymers formed by the homopolymerization of resorcinol and a hardening agent. Also disclosed are carbon-containing specialties comprising a binder, a solvent for the binder, and a refractory filler, the binder comprising a mixture of polymers formed by the homopolymerization of resorcinol and a hardening agent.

Abstract: A mixture of a water swellable clay mineral and an alkali soluble and thickenable (meth)acrylic acid emulsion copolymer provides a highly effective thickening and gelling agent for aqueous systems at low concentrations. The gels are self-supporting and have high strength and thus are particularly useful as air fresheners and other applications where firm gels are desirable. A synergistic thickening effect between the (meth)acrylic acid copolymer and the clay mineral is observed.

Abstract: The present invention is directed to a trowelable, lightweight, synthetic stucco composition containing a crushable, lightweight aggregate, and specifically to the protection of the lightweight aggregate from substantial particle size reduction during troweling application by providing in the composition a protective amount of a hard, non-crushable aggregate having a protective particle size. The hard aggregate is strong enough to resist the troweling step without crushing, and serves to keep the trowel a spaced distance away from the substrate upon which the stucco composition is applied, to thereby substantially prevent crushable, lightweight aggregates of similar or smaller particle size from crushing, and to limit the crushing of crushable, lightweight aggregates having a larger particle size.

Abstract: A barytes-containing wood filler is prepared from essential ingredients including, on weight percent basis, 6-14% acrylic resin, 3-10% platy talc, 3-10% barytes filler, 3-12% clay filler, 40-65% calcium carbonate filler and 13-35% water. A barytes-free wood filler is prepared from the same proportions of acrylic resin, calcium carbonate filler and water, together with 5-18% platy talc and 0-15% clay filler. Desirably the average particle size of the talc is about 9 microns and the average particle size of the clay is about 5 microns.

Abstract: Nonwoven fabrics are bonded by a binding agent which comprises an aqueous dispersion of an organic polymer coupled to an inorganic filler by means of an organosilane or organotitanate coupling agent. Such fabrics possess properties which render them exceptionally suitable for use as top sheets for disposable diapers and the like.

Abstract: The present invention relates to an aqueous printing ink composition and method for improving printing using such aqueous based printing inks. The composition is comprised of a physical mixture of polyurethane resin, polyethylene resin and water as the vehicle. The invention provides a family of water-based inks with enhanced physical and mechanical properties. The inks have superior abrasion resistance and good adhesion to various substrates including metal and plastics.