Abstract: Rapid-drying, one-package, epoxy traffic paint composition comprises (1) an adduct of an epoxy resin and a polymerized fatty acid, (2) a thermoplastic resin and (3) one or more pigments.

Abstract: A method for repelling animals and birds consists of applying to an area being protected a composition consisting essentially of an aqueous solution or dispersion of a carboxylated hydrophilic acrylic copolymer, a cross-linking agent for the carboxylated hydrophilic copolymer, a stabilizingly effective amount of an ultraviolet-absorbing agent and an animal or bird repelling compound.

Abstract: Voids in at least a part of an artificial or natural structure adjacent an exposed surface of the structure are filled with hardenable material to strengthen the structure by closely fitting over the exposed surface a flexible fluid-impermeable covering having adjacent its boundary edges an endless hollow wall that surrounds and opens towards said covered surface and sealing boundary edges of the covering to the structure to form a substantially fluid-tight enclosure incorporating the hollow walls. Air and any other fluid is evacuated from the hollow wall and from voids adjacent said covered surface and hardenable material in a liquid or semi-liquid state is allowed to enter into the evacuated voids until the hardenable material appears at openings of voids in said covered surface. The hardenable material is then allowed to set.

Abstract: A waterproof covering is manufactured by depositing a fluid product, forming an adhering and watertight film, on the surface of the basis or support to be waterproofed. A textile layer is laid on the film before its complete formation, i.e., while a portion of the film forming fluid is still in its fluid state, in such a way that the central portion of this layer is not impregnated and a second fluid forming an elastic waterproof film is laid on the textile in such a way that the central portion of the textile layer is not impregnated. The roll of material used in this process is also disclosed as well as is thewaterproof covering obtained by this process and its use to waterproof terraces, front walls, foundation walls, tanks or the like.

Abstract: A finely crushed mixture is prepared which contains at least 10 to 25% by weight of felspar and/or China clay, at least 60 to 85% by weight of quartz and/or calcium carbonate and up to 5% by weight of mica. Said mixture when laid over the desired track is wetted with water or an emulsion of paraffin oil in water. Such an artificial track can remain in position unaltered for several seasons and be covered with snow in winter under favorable climate conditions.

Abstract: A concrete surface is treated with a low viscosity sealant solution comprising an epoxy resin and an organic elastomeric polysulfide curing component which solution penetrates deeply into the surface and fills voids therein.

Abstract: Compositions of carboxy methyl cellulose and method for treating cured concrete and bituminous concrete, the surfaces of which are subject to the accumulation of water, melting ice and snow, to reduce spalling or degradation of such surfaces when subjected to the freezing and thawing action of the water and water based solutions which are absorbed into the same. A protecting agent is used to maintain the carboxy methyl cellulose in a soluble state when applied to concrete surfaces.

Abstract: A method for preventing surface cracking of a portland cement mortar or concrete containing a film-forming polymeric modifier, comprising applying onto a fresh, non-cured mortar or concrete surface a substantially continuous coating comprising from about 0.06 to about 1 lb/yd.sup.2 of said mortar or concrete surface of a material selected from the group consisting of polyglycerine, glycerine and mixtures thereof.

Abstract: Superficial aggregate material (e.g. soil, sand) is consolidated by means of a water-insoluble, moisture-curable NCO-terminated prepolymer having defined physical properties.

Abstract: A process for drying concrete to the appropriate moisture content for proper impregnation of the concrete with a polymer or a monomer for in situ polymerization. This is accomplished by heating the concrete until its temperature at the desired depth of polymer penetration is at least about 230.degree. F. In another embodiment of the invention the dried concrete is impregnated with a monomer composition capable of polymerization and is polymerized within the concrete.

Abstract: Methods and compositions for preventing or reducing spalling or degradation of pavement materials, including portland cement concrete and bituminous concrete, when a pavement is subjected to a freezing and thawing action while in contact with water or with de-icing solutions which have been produced by the action of de-icing compounds.

Abstract: An additive for admixture with road surface preparation materials to prevent formation of ice and to melt snow on the finished road surface. The additive is distributed throughout the road surface and comprises coated particles of a halide, e.g. calcium chloride, coated particles of an alkali metal hydroxide, e.g. sodium hydroxide and a trace of coated or uncoated particles of calcium hydride, the coatings being of a water-tight inert substance such as linseed oil. These coatings are worn away at the road surface by traffic to expose the particles.

Abstract: A method of treating barren earthen areas for inhibiting air and sun spoilation is disclosed, the method comprising forming an aqueous slurry of calcium sulfate hemihydrate with a small amount of defoamer using a quantity of water about 25-56% above normal consistency, the hemihydrate particles having a surface area of about 4,000-16,000 square centimeters per gram; and spraying the slurry onto the barren area to form a set, substantially air-impermeable covering to the barren area that will substantially exclude outside air from the area. The method is particularly applicable to controlling burning coal spoils and inhibiting spontaneous combustion of coal refuse banks.

Abstract: An improvement in the waterproofing of a shaped article having a porous surface by initially subjecting said surface to a hydromechanical treatment by impinging cold or hot water or steam under pressure thereon and thereafter impregnating the same with a liquid form organo silicon compound, said improvement comprising treating the surface with a basically acting substance before or during the impregnation.

Abstract: An improved method and composition for consolidating a porous and permeable subterranean particulated formation into a high strength water resistant mass is provided by a particular combination of vinyl monomers, catalyst system and optional features such as solvent, particulate filler, chelates and binders.

Abstract: A method for protecting porous inorganic substrates from damage by salt water, gaseous pollutants, graffiti, and erosion consists of applying to the porous inorganic substrate a gas and vapor permeable preservative composition consisting of an aqueous solution or dispersion of a carboxylated hydrophilic acrylic polymer, a cross-linking agent for the carboxylated hydrophilic acrylic polymer, and an effective amount of an ultraviolet-absorbing agent.

Abstract: The present invention relates to improvements in binding dust particles such as coal dust in mining operations by coating exposed surfaces in mine workings with a dust binding agent. Additives to the binding agent enhance dust entrapment and may be coated on the exposed surfaces after an initial layer of binding agent has been structured in the mine workings.

Abstract: A paint composition that rapidly congeals to traffic-bearing condition when sprayed at an elevated temperature onto a paved surface, comprising a paint vehicle and a normally solid substantially neutral polyamide reaction product dispersed in the paint vehicle, characterized in that the ingredients from which the reaction product was made include diphenolic acid.

Abstract: Ambient drying traffic paint compositions and methods for their application are disclosed comprising a resin binder and pigment(s) in a three-component or four-component solvent system, in parts by weight of:Solvent boiling point: 190-141.degree. F.; 5-11solvent boiling point: 140-106.degree. F.; 12-17solvent boiling point: 105-90.degree. F.; 2-28solvent boiling point greater than 225.degree. F; 0-12The disclosed compositions are applied at ambient temperatures without the use of external heating means and a relatively fast dry time of about 20 to 60 seconds is obtained.

Abstract: A water-proofing/sound-proofing coating composition comprises, in order, from a surface to be coated (A) a prime coat comprising (1) a paint binder, (2) a heat absorber, comprising a dark, preferably black, pigment, (3) a volatile solvent, and optionally (4) an inert fller, and (B) a membrane coat comprising (1) a polyurethane formed from (a) a mixture of high molecular weight polyols and low molecular weight chain stiffeners and (b) a polyisocyanate, (2) a nonvolatile extender and (3) a volatile solvent. The surfacing composition can also include an overlay of a wearing surface such as an asphalt concrete.

Abstract: A composition for admixture with road surface preparation materials to prevent formation of ice and to melt snow on the finished road surface. The composition is distributed throughout the road surface and comprises particulate thawing substances at least some of which have a watertight coating resistant to the thawing substance and to the temperature at which the composition materials are prepared for application as a road surface. The coating may, however, be worn away by mechanical action, e.g. traffic movement, to expose the thawing substance.

Abstract: A method for inhibiting stress-corrosion cracking of a steel pipeline transmitting gas under elevated pressure provided with an external protective coating and means for cathodic protection, and steep pipe and pipelines so protected are described. The method consists of introducing a composition containing at least one of the inhibitors, calcium monobasic phosphate, sodium monobasic phosphate, sodium tripolyphosphate and potassium silicate, into a buried pipeline environment. The inhibiting composition may be simply introduced to the environment adjacent the pipeline or it may be incorporated in a coating on the pipeline, either in the primer or in a top coating thereover or in an intermediate coating between a conventional primer and topcoating, or in a tape applied to the pipeline.

Abstract: Ground surfaces are rendered impervious by first covering the ground with netting and then spraying glass fiber and polyester resin on the netting and allowing it to cure.

Abstract: Liquid impervious surface structures are formed by permeating a fabric and a portion of an earthen foundation with an aqueous gel wherein the permeated earthen foundation is covered by the permeated fabric.