Abstract: This invention relates to a drying time accelerator for a water-based paint comprising mineral particles, a polymer binder with water-based dispersion and an emulsion polymerization agent, as well as the corresponding paint. The accelerator has a polymeric structure, is water-soluble, comprises cationic charges, and is selected from metallic polychlorides, metallic polyoxychlorides, or synthesis polyacrylamide polymer. The invention also relates to a method for applying a water-based paint according to the invention onto a support, according to which the paint is sprayed onto the support, light-reflecting balls are distributed in the paint, and a drying time accelerator is incorporated into the paint, preferably after distribution of the balls. The application of the invention is to road markings.

Abstract: A composition for rendering surfaces water repellent is formed by combining water or a solvent; a methylhydrogensiloxane polymer or copolymer; an alkoxysilane having the formula RaSi(OR′)4-a in which R represents an alkyl group containing 1-10 carbon atoms, an alkenyl group containing 2-8 carbon atoms, an aryl group, or an haloalkyl group, a has a value of 1 or 2, and R′ represents an alkyl group containing 1-6 carbon atoms; and a silicone resin. The composition can also contain other components such as a volatile methyl siloxane, a cationic oil-in-water emulsion of an aminofunctional polydimethylsiloxane, a surfactant, a catalyst, a beading agent, an organic wax, a preservative, an antifoam, a mildewcide, an UV absorber/UV light stabilizer, or a freeze-thaw additive.

Abstract: A method of constructing a resilient surface layer of particles bound together and to a base surface comprises uniformly dropping dry rubber particles from a moving apparatus and spraying the particles with a liquid, water based, latex binder as the particles are dropping, the apparatus comprises a movable vehicle with a particulate spreading assembly comprising a hopper with a controlled orifice, and a spray system with an array of nozzles directed to intersect the path of the particles after leaving the hopper and before the particles reach the base surface.

Abstract: A device for association with a rotatable powered roller (1) having an elongate cylindrical roll surface (2) adapted to be moved over a surface (9) of newly laid fluid and surrounding formwork (35), wherein the manner of association is such that the roller surface comprises an elongate substantially cylindrical texturing portion (2) and at least two guide portions (3), the guide portions (3) being adapted to support the texturing portion (2) at a required level with respect to the fluid surface (9) in manner to ensure partial embedding of texturing material distributed thereon, use thereof in texturing a fluid surface, method for texturing a fluid surface and a fluid surface obtained thereby.

Abstract: The present invention provides a method of curing a waterborne coating composition comprising the steps of: a) applying the waterborne coating composition, which comprises polymer solids of which at least 5% by weight thereof is UV curable, to a substrate; b) irradiating the coated substrate with microwave radiation; and c) irradiating the coated substrate with UV radiation.

Abstract: A global positioning system (GPS) controlled paint spray system. The system includes a paint sprayer driver program and a GPS paint sprayer. The paint sprayer driver program enables a user of a standard drawing program using a standard personal computer to generate a print file for a drawing pattern. The GPS paint sprayer includes a GPS receiver, a geographical converter for enabling a user to convert the drawing pattern to geographical locations, a location comparator for detecting a location match between the geographical locations of the drawing pattern and a current GPS-based location, and a spray nozzle to spraying paint for matched locations.

Abstract: The invention relates to a fast hardening aqueous coating composition comprising from about 95 to about 99 weight percent of an anionically stabilized aqueous emulsion of a copolymer having a Tg of from about 0° C. to about 40° C., the copolymer containing two or more ethylenically unsaturated monomers, wherein from 0 to about 4 weight percent of the monomers are &agr;,&bgr;-ethylenically unsaturated aliphatic carboxylic acid monomers; from about 0.2 to about 5 weight percent of a polyimine having a molecular weight of from about 250 to about 20,000; and from about 0.2 to about 5 weight percent of a volatile base, wherein the composition has a pH from about 8 to about 11, and wherein a cast film of the composition has a hardening rate measurement rating of at least 5 within 20 minutes after casting under ambient conditions of temperature up to 30° C. and relative humidity no less than 50 percent.

Abstract: In one embodiment, the present invention relates to an asphalt composition containing asphalt, a terpenoid liquid, a rubber at least partially soluble in the asphalt composition and a flexible aggregate.

Abstract: This invention relates to a method of producing traffic producing wear resistant traffic markings on road surfaces and to the traffic paint used therein. When a traffic paint containing a highly hydrophobic polymer, which is free from styrene is utilized, a wear resistant traffic marking is produced.

Abstract: The invention concerns a method of protecting a surface of a carbonatic material from corrosion, the method comprising treatment of the material surface with an acidic cationic silica sol, the pH of the sol preferably being from about 4 to about 7. The invention also concerns a new silica sol useful for performing the method and a method of preparing the new silica sol. Further, the invention concerns carbonatic material comprising a surface layer of silica, the surface of the silica particles comprising a polyvalent metal oxide/hydroxide.

Abstract: Apparatus and process for marking a surface with a highly visible and substantive mark comprising mixing a dry granular, free-flowing superabsorbent polymer powder with liquid, preferably water, and dye to form a semi-solid gel and depositing the gel onto the surface to be marked. The marking apparatus comprises a chamber for mixing the gel and a ram used to eject the gel from the chamber without excess mechanical agitation and without causing significant breakdown of the gel. The dye makes the gel very visible, the bulk of the gel makes it more easily visible, the nature of the gel makes it temporary; easily dispersed with time, sunlight or water.

Abstract: An aqueous coating composition for coating concrete-like materials to prevent loss of water vapor during hardening. The aqueous coating composition comprises 5.0-45.0% by weight of a wax or wax-like material, 1.0-10.0% by weight of polyvinyl alcohol, 0-1.0% by weight of a biocide and the balance of water. Also disclosed is a method of coating a concrete-like material including the step of applying, to the surface of the concrete-like material a coating of the aqueous coating composition of the invention. Also disclosed is an article of manufacture which includes a concrete-like material having applied thereto a coating as described above. The aqueous coating composition surprisingly meets the relevant ASTM and other standards for concrete curing without employing any hazardous materials and/or volatile organic compounds.

Abstract: A concrete sealer material is provided containing a corrosion inhibitor which is free to migrate upon leeching from the concrete sealer. The inhibitor retards the rate of corrosion of reinforcements contained within the concrete, including metallic mesh, grid, rebar, and other metallic articles utilized for reinforcement. The sealer material is preferably a film forming component of silicate or silane modified siloxanes. The corrosion inhibitor is preferably an amine salt, an amino alcohol, alkalized salt of glucoheptonates, or, calcium nitrite and mixtures thereof. A compatibility enhancer of an aminoalkyl silane can be added to the blend.

Abstract: A method and apparatus for continuously coating particulate such as rubber with liquid binder and applying the same to a substrate to form resilient athletic surfaces. Total encapsulation of the particulate with the liquid binder is accomplished prior to applying the mix to the substrate. In addition, the method of delivery of the particulate and binder maintains the ratios thereof uniform. In its method aspects, the instant invention involves separately introducing a stream of particulate and a stream of binder into a spray nozzle, where they are combined and delivered to the substrate. The apparatus includes a nozzle assembly having a central lumen and an elongated tip, the lumen being formed so as to force the particulate introduced therein to follow a circuitous or indirect path therethrough and thereby decrease its velocity prior to being ejected from the nozzle.

Abstract: Asphaltic materials are provided with increased resistance to damage from water, oil and weather by a process which comprises treating said materials with an aqueous composition containing: (A) from about 0.1 to 4% by weight, on a 100% solids basis, of an aqueous solution or self-dispersed emulsion or dispersion of a copolymer which is a reaction product of monomers containing fluorinated groups, cationic groups and nonionic groups, optionally (B) an effective amount of a penetration assistant, and (C) water to make up 100%.

Abstract: The present invention discloses aqueous paint compositions having enhanced adhesion characteristics. The compositions contain at least one water-soluble and/or water-dispersible polyether amide comprising the reaction product of polyoxyalkylene diamines and polycarboxylic acids. The dried compositions have improved adhesion characteristics making them particularly useful protective and/or decorative coatings on substrates including wood, metal, concrete, and plastic.

Abstract: An elastic water-permeable polymeric concrete composition, a formulation method therefor, an elastic water-permeable polymeric concrete structure using the composition, and a method for constructing the structure. The polymeric concrete composition is formulated by integrating a rubber powder ground from waste tires or waste rubber and an aggregate using a polymeric binder, and if required, by adding a pigment and aromatic capsules capable of providing remedial and psychological effects. The polymeric concrete structure manufactured using such polymeric concrete composition has appropriate elasticity, water permeability, strength and a pleasant aroma. Thus, the polymeric concrete composition is useful for paving a footpath, a roadway, a bikeway, a railway crossing, a parking lot, a stadium, a racing track, a landing strip, etc., and as a material for civil engineering and constructions such as blocks, tile sound-absorbing plates, soundproofing plates, soundproofing walls and retaining walls.

Abstract: A sprayable composition and a method of protecting material with the composition is disclosed. The composition comprises a bulking/setting material, a water soluble polymer and water to provide a cover layer which, after spraying, is tough, flexible and water-repellent. Other materials such as clay, fibrous material, a foam producing agent and a hardening retarder can be included in the composition. The composition is effective as a cover layer over material such as soil, refuse at a dump site, stockpiled material, a temporary cover for remediation sites, or tire piles.

Abstract: A global positioning system (GPS) controlled paint spray system. The system includes a paint sprayer driver program and a GPS paint sprayer. The paint sprayer driver program enables a user of a standard drawing program using a standard personal computer to generate a print file for a drawing pattern. The GPS paint sprayer includes a GPS receiver, a geographical converter for enabling a user to convert the drawing pattern to geographical locations, a location comparator for detecting a location match between the geographical locations of the drawing pattern and a current GPS-based location, and a spray nozzle to spraying paint for matched locations.

Abstract: An epoxy sealer/healer formulation for sealing and strengthening cracked concrete comprising an epoxy resin, an amine and a dialkylene triamine-alkylene oxide adduct, where the formulation provides a modulus and/or compressive strength at least that of uncracked concrete and effective for penetrating a concrete crack at a rate of at least 10 mm/min for a crack 0.5 mm wide when applied by gravity feed. The epoxy sealer/healer preferably has a viscosity of less than 100 centipoise and a tack-free time of less than 12 hours. The epoxy sealer/healer is advantageous in being able to bond to moist concrete surfaces. A method of using the epoxy sealer/healer for sealing and restoring the strength of cracked concrete is also set forth.

Abstract: Compositions for application to a soil for retaining water in the soil for plants are prepared by applying an aqueous solution containing sodium and/or potassium methylsiliconate to a substrate so that the siliconate applied is in an amount of between 180 g and 1,000 g per m.sup.3 substrate and then, the treated substrate is allowed to dry at ambient temperature. The substrates employed include tree bark, sawdust, compost and vegetable mould and also gravel and sand. Additionally, porous articles prepared for containing plants also may be treated for improving retention of water.

Abstract: A method for protecting concrete surfaces of sanitary sewers includes the steps of providing a concrete surface in a sanitary sewer environment; and coating the concrete surface with magnesium hydroxide or magnesium oxide.

Abstract: Retroreflective articles of the invention comprise a continuous base layer and a multi-color polymeric top layer. The invention also includes methods of making such retroreflective articles. The retroreflective articles of the invention provide excellent daytime contrast while maintaining nighttime retroreflectivity. Variously colored segments of polymer are directly and either sequentially or simultaneously coated onto a continuous backing to form a multi-colored top layer. Durability over existing multi-colored retroreflective articles is enhanced by use of a continuous base layer.

Abstract: The disclosed striping composition provides a fast cure on road or highway surfaces. The striping composition is a two-part (part A and part B) polyurethane forming system having good adhesion characteristics to a road or highway surface, and weathering and yellowing resistance over time. Part A contains an aliphatic polyol and part B contains an aliphatic polyisocyanate.

Abstract: The present invention is directed to a method of coating a substrate under ambient conditions by conventional single step application means, such as single spray heads with a single pack fast dry paint, containing a coating composition of the present invention, which contains a latex binder, an associative thickener and a water soluble organic volatile solvent. The amounts the associative thickener and the solvent are such that the paint has an in-can viscosity under ambient conditions in the range of from 1,000 cps to 6,000 cps and a set-to-touch dry time rating under ASTM D-1640 of less than 10 minutes. The method of the present invention and coating composition used therein can be used to produce a quick drying coating useful as, a pavement or road marking traffic paint for concrete, asphalt or bituminous roads, walkways, or parking lots.

Abstract: The subject of this invention is a binder layer which can be driven over for pavements composed of a primary binder film and of an opaque aqueous protective layer capable of reflecting luminous radiation which covers the surface of the said binder film.

Abstract: New secondary amines are described which are prepared from inexpensive, commercially available raw materials, are stable at room temperature, and are reactive toward electrophiles. The secondary amines are prepared by the addition of one or more primary amines with one or more male (amide/ester) and fumar (amide/ester) Michael receptors. The above amines can be used as coreactants with aliphatic polyisocyanates for polyurea coatings. The novel secondary amines are also described as particularly useful as part of a two-part liquid pavement marking composition for pavement markings.

Abstract: The invention concerns the production of a pre-mixed porous polymeric composition wherein granules of rubber are encapsulated with a first pre-polymer which is cured, a second uncured pre-polymer is then mixed with the encapsulated granules in a substantially moisture-free environment, the mixture is deposited into containers substantially impermeable to water vapor and is then stored for later use so that without further mixing it may be applied to a suitable sub-base surface and the second pre-polymer is allowed to polymerize by reaction with water.

Abstract: The present invention is directed to traffic paint compositions, which dry faster than conventional waterborne traffic paints and to a method of producing traffic paint road markings made therefrom. The traffic paint composition of the present invention includes a blend of an anionically stabilized polymer binder, a polyfunctional amine polymer having an amine and an acid functionality therein and an amount of volatile base sufficient to raise the pH of the composition to a point where essentially all of the polyfunctional amine polymer is in a non-ionic state. The traffic paint composition of the present invention further provides improved storage stability.

Abstract: The invention hereof is a new highway deicing additive and a method for deicing asphalt highways. It has been discovered that a small amount of starch added to the salt/water sprayed on highways provides the unexpected property of retaining salt particles in the top portion of the "voids" in the asphalt roads for a period of 2 to 4 hours. The starch can be incorporated into water by mixing; biocides can be added if the starch/water mixture is to be stored more than 2 days. Salt is added to the water/starch mixture prior to deposition on the road. The new treatment works by increasing the viscosity of the aqueous fluid sprayed on the highway to form a water gel structure on the road providing a "platform" for the salt particles in the top portion of the asphalt. The new additive also reduces the need and cost of "follow-up" salt treatments.The additive and method are particularly useful for the new type of asphalt being used on highways in Europe which has a super-porous structure when laid as a road-bed.

Abstract: A method for the surface stabilization of sand and/or soil is provided. The method is comprised of applying an aqueous polymer dispersion to the surface layer of soil. The aqueous polymer dispersion is comprised of triesters of glycerol with lower aliphatic monocarboxylic acids, citric acid triesters with lower aliphatic monohydric alcohols and/or epoxidized triglycerides of at least partly olefinically unsaturated fatty acids as biodegradable plasticizers in aqueous polyvinyl acetate dispersions.

Abstract: Compositions for controlling damage to cementitious materials as a result of alkali-silica reactions (ASR) are provided. The compositions include a lithium containing material and a surface active agent. The compositions are capable of effectively delivering lithium into a cementitious material after the composition is applied to a surface thereof. Processes for treating cementitious materials using the compositions are also provided.

Abstract: A gel-like emulsion containing natural rubber and crumb rubber from used vehicle tires which may be added to an asphalt paving emulsion at ambient temperature for chip coating, slurry sealing, microsurfacing, soil stabilization or pavement recycling.

Abstract: The present invention provides resilient cement compositions and methods which are particularly useful in the construction and repair of oil and gas wells. The cement compositions have improved mechanical properties including elasticity and ductility and are basically comprised of cementitious material, an aqueous rubber latex and a latex stabilizer.

Abstract: The leaching of metals from waste rock is retarded by coating the waste rock with a polymer that both adheres to the rock and chemically binds with the leaching metals. In some cases, the pH of the waste rock environment must be increased prior to polymer treatment with an addition of a neutralizing agent such as lime. Specifically, this neutralizing agent raises the pH of the waste rock environment thereby allowing the polymer to hold this neutralizing agent within the waste rock.

Abstract: A grid for producing a pattern on a surface. The grid includes elongated members connected together at intersections and extending about a plurality of open areas to form a mesh-like structure. Connecting members are connected to the elongated members at the intersections. The connecting members extend outwardly from at least one said elongated member. The connecting members have a thickness less than the thickness of the elongated members. The bottoms of the connecting members and bottoms of the elongated members are flush. The grid is placed on a surface and a liquid coating is spread over the surface in the open areas between the elongated members. The liquid coating is allowed to set. Preferably there is a removable coating on the grid which is removed after the liquid coating is set.

Abstract: A pavement marking and a method of making a pavement marking, where retroreflectivity and skid-resistance can be independently controlled while making efficient use of the optical elements and skid-resistant particles. One illustrative embodiment includes two topcoats on a base sheet having first and second major surfaces, the first major surface having a plurality of protuberances located thereon which are separated by valleys. A first topcoat is attached to the first major surface of the base sheet and a second topcoat is selectively located on the protuberances. A first mixture of optical elements and/or skid-resistant particles is attached to, e.g., partially embedded in, the first topcoat and a second mixture of optical elements and/or skid-resistant particles is attached to, e.g., partially embedded in, the second topcoat.

Abstract: This invention relates to a method of inhibiting alkali-silica or alkali-aggregate reactions (AAR/ASR) in concrete structures by introducing lithium compounds or the like in conjunction with conventional techniques for the treatment of steel reinforcement corrosion.It is also proposed to provide lithium compounds in repair concretes, grouts or mortars and use the difference in concentration between the article under repair and the repair material to introduce the lithium ions into the concrete under repair, once again inhibiting AAR/ASR reactions.

Abstract: A method for controlling both fugitive bauxite dust and sodium hydroxide contamination generated by the waste disposal of bauxite tailings from aluminum processing plants comprising using magnesium chloride or sodium chloride or mixtures thereof on the surface of the disposal pits, which are also known as mud lakes. Preferably, a solution of magnesium chloride is applied to the surface of a dry or partially dry mud lake. The magnesium chloride neutralizes the sodium hydroxide on the surface, forms a hard crust that covers the fine bauxite particles and also inhibits the migration of unreacted sodium hydroxide to the surface.

Abstract: This invention relates to the addition of antimicrobial agents to pavement marking systems to inhibit the growth of microorganisms on and under the pavement marking when it is affixed to a pavement.

Abstract: A new composition for the protection of a body of concrete sodium nitrate, sodium carbonate, sodium sulfate, calcium chloride, calcium carbide, lime, cement, and sand in a percent ratio of (0.9-1.8):(2-3):(2.5-3.6):(0.05-0.15):(0.75-1.15):(0-8-1):(36-40):(49-39.3 ) mixed with 8 to 10% of water. A process for preparing the composition involves comminution of certain components to a predetermined range of particle size and a treatment to insure certain ranges of moisture content of various components of the composition. A new method for the application of the protective composition involves the preparation of the surface being protected to increase the exposed surface area of the surface being protected by a factor of 1.15 to 1.36.

Abstract: Disclosed is an asphalt composition to which a water soluble prepolymer which is resinified while the reaction proceeds gradually in the aqueous solution is added, wherein the strength of the asphalt composition is notably improved. Further, the resinification speed can freely be controlled by the action of a resinification accelerator. Accordingly, the additive for the emulsified asphalt and the asphalt composition for blending at cold temperatures can be applied effectively to various applications such as road pavement, railroad, waterproof agents, and adhesives.

Abstract: A method for protecting concrete surfaces of sanitary sewers includes the steps of providing a concrete surface in a sanitary sewer environment; and coating the concrete surface with magnesium hydroxide or magnesium oxide.

Abstract: The present invention is directed to producing an efflorescence resistant sealer coating on a cementitious substrate, such as, a roof tile. A foamed layer of an efflorescence resistant coating composition is preferably applied on the surface of a wet cementitious substrate. The wet cementitious substrate is then hydrated to produce the cementitious substrate having the efflorescence resistant coating thereon. If desired, the efflorescence resistant coating composition is provided with a pigment to produce a pigmented efflorescence resistant coating on the cementitious substrate or a clear efflorescence resistant coating of the present invention may be applied over pigmented cementitious substrate. The efflorescence resistant coating produced in accordance with the process of the present invention substantially reduces the formation of esthetically unpleasant efflorescent layer on cementitious substrate surfaces.

Abstract: The disclosed striping composition provides a fast cure on road or highway surfaces. The striping composition is a two-part (part A and part B) polyurethane forming system having good adhesion characteristics to a road or highway surface, and weathering and yellowing resistance over time. Part A contains an aliphatic polyol and part B contains an aliphatic polyisocyanate.

Abstract: A metal detector and distance sensor for a motor vehicle. A departure of the motor vehicle from a correct path indicated by one or two metal lines covered with paint in the road is signaled. The metals lines are formed by projecting a jet of metal in the gaseous state at high speed onto the road surface. A covering of paint is then formed over the metal line on the road surface. A turbine supplied by an air compressor projects the jet of metal in the gaseous state from a vehicle or a trailer having a metal supply device and a painting device thereon. A display indicates the direction of departure from the correct path and the distance separating the motor vehicle from a preceding vehicle. Alarm signals can be emitted upon the departure.

Abstract: A traction aggregate suitable for antiskidding applications where reduced dust generation is desired. An expanded substrate is saturated with a liquid absorbed dust suppressant and sealed with a liquid water repellant sealant/dust suppressant. The aggregate traction material may be dispersed over thoroughfares to provide adequate traction for vehicles and, once the snow/ice melts and the roadway dries, leaves behind a non-dusting material that will remain a dust suppressant material during and after subsequent vehicular degradation.

Abstract: The process for the temporary consolidation of railroad track ballast, in particular during the time of redevelopment or reconstruction of a parallel set of tracks, is performed in that the ballast is cemented partially in particular in the side area by a multi component adhesive, wherein this cementation may be broken up mechanically later without affecting reuse of the ballast.

Abstract: Methods for suppressing the dissemination of dust emissions from dust producing materials are disclosed. Fugitive dust emissions are suppressed by applying aqueous solutions of a copolymer of tannin and a cationic monomer to the dust producing materials.

Abstract: This invention relates to a process for treating cementitious containing materials including asphalt with a binding composition containing a protein-polysaccharide complex to improve resistance to erosion caused by environmental forces and physical wear and to enhance internal adhesion of the compositions. The use of the binding compositions in asphalt paving compositions reduces the amount of bitumen or asphalt emulsion necessary to produce asphalt paving compositions while increasing the wear resistance of the asphalt paving composition.