JP2007536387A5 - - Google Patents

Claims (40)

A hydrophobic composition for construction and civil engineering comprising a core material coated with a hydrophobic powder, wherein the hydrophobic powder contains at least one impure element having a bonded hydrocarbon chain, and the hydrophobic powder are adhered to the core material via an adhesive layer is an aqueous, the core material, building and civil engineering dried at a range of temperatures of 90 ° C. to 120 ° C. in a state which is not covered with the hydrophobic powder Hydrophobic composition for use . The building and civil engineering hydrophobic composition according to claim 1, wherein the core material in a dried state has a moisture content of 1% by weight or less . The building and civil engineering hydrophobic composition according to claim 1 or 2 , wherein the temperature is 104 ° C. The hydrophobic composition for construction and civil engineering according to claims 1 to 3, wherein the water-based pressure-sensitive adhesive layer is prepared at a temperature of 40 to 90 ° C. The hydrophobic composition for architectural and civil engineering according to claim 1 , wherein the water-based pressure-sensitive adhesive layer is prepared by mixing for 10 minutes . The building and civil engineering hydrophobic composition according to claim 1, wherein the hydrocarbon chain comprises at least 10 carbon atoms . The building and civil engineering hydrophobic composition according to claim 1, wherein the hydrocarbon chain is covalently bonded to the at least one impure element . The building and civil engineering hydrophobic composition according to claim 1, wherein the hydrocarbon is a fatty acid residue having at least 12 carbon atoms . The building and civil engineering hydrophobic composition according to claim 8 , wherein the fatty acid is selected from the group consisting of stearic acid, lauric acid, myristic acid, palmitic acid, oleic acid, linolenic acid and arachidonic acid . The building and civil engineering hydrophobic composition according to claim 1, wherein the element is selected from the group consisting of metal elements, metalloid elements, and transition metal elements . The said at least one element is selected from the group consisting of magnesium, calcium, aluminum, zinc, sodium, barium, zirconium, manganese, titanium, vanadium, chromium, iron and combinations thereof. Hydrophobic composition for construction and civil engineering . The hydrophobic composition for construction and civil engineering according to claim 1, wherein the hydrophobic powder has an average particle size ranging from 0.02 μm to 50 μm . The hydrophobic composition for construction and civil engineering according to claim 1, wherein the hydrophobic powder has a surface area of between 1 m 2 / g and 60 m 2 / g . The building and civil engineering hydrophobic composition according to claim 1, wherein the core material is selected from the group consisting of a particulate material and a granular material . The core material is sand, gravel, slag, polyceranite, dolomite, porcelain clay, basalt, quartz sand, coal ash, chalk, zeolite, montmorillonite, agapurite, flint, bentonite, perlite, mica, wood chips, walnut shell, sawdust and their The hydrophobic composition for construction and civil engineering according to claim 1, which is selected from the group consisting of combinations . The building and civil engineering hydrophobic composition according to claim 1, wherein the core material has an average particle size in the range of 25 mm to 5 μm . The hydrophobic composition for construction and civil engineering according to claim 1, wherein the core material is quartz sand . The building and civil engineering hydrophobic composition of Claims 1-17 in which the said adhesive layer contains a film formation agent . The hydrophobic composition for construction and civil engineering according to claim 1, wherein the film-forming agent is a film-forming polyurethane . The hydrophobic composition for construction and civil engineering according to claim 1, wherein the pressure-sensitive adhesive layer further contains an adhesive . 21. The architectural and civil engineering hydrophobic composition of claim 20, wherein the adhesive is a volatile hydrocarbon having at least 12 carbon atoms . 22. The architectural and civil engineering hydrophobic composition of claim 21, wherein the adhesive is selected from the group consisting of liquid asphalt, paraffin wax, beeswax, lanolin wax, linseed oil and combinations thereof. The hydrophobic composition for construction and civil engineering according to claim 20 , wherein the water-based pressure-sensitive adhesive layer contains a water-based pressure-sensitive adhesive . 24. The building and civil engineering hydrophobic composition according to claim 20, wherein the adhesive occupies 0.1 to 50% by weight of the pressure-sensitive adhesive layer . The hydrophobic composition for construction and civil engineering according to claim 1, wherein the hydrophobic powder further comprises hydrophobic fume silica . The hydrophobic composition for building and civil engineering according to claim 25, wherein the hydrophobic fume silica accounts for 1 to 99 % by weight of the hydrophobic powder . 27. The building and civil engineering hydrophobic composition according to claim 1, wherein the pressure-sensitive adhesive layer accounts for 0.5 to 7 % by weight of the building and civil engineering hydrophobic composition. 28. The hydrophobic composition for building and civil engineering according to claim 1-2, wherein the hydrophobic powder accounts for 0.1 to 5% by weight of the hydrophobic composition for building and civil engineering. The building and civil engineering hydrophobic composition according to claim 1, further comprising at least one additive selected from the group consisting of a colorant, an anti-UV agent, a bleaching agent and an abrasive. 30. The building and civil engineering hydrophobic composition of claim 29, wherein the colorant comprises 0.1 to 2% by weight of the building and civil engineering hydrophobic composition. 31. The building and civil engineering hydrophobic composition according to claim 29 or 30, wherein the UV-resistant agent and the bleaching agent comprise 0.01 to 2% by weight of the building and civil engineering hydrophobic composition, respectively. Architecture having a step of drying a core material in a temperature range of 90 ° C. to 120 ° C., a step of applying an adhesive layer on the core material, and a step of coating the core material with a hydrophobic powder, and A method for preparing a hydrophobic composition for civil engineering, wherein the hydrophobic powder contains at least one impure element having a bonded hydrocarbon chain, and the adhesive layer adheres the hydrophobic powder to the core material. Further comprising a step,
The pressure-sensitive adhesive layer includes a water-based adhesive, and the step of applying the pressure-sensitive adhesive layer onto the core material mixes the core material with the water-based pressure-sensitive adhesive mixture including the water-based adhesive and an aqueous solvent while volatilizing. A method for preparing a hydrophobic composition for construction and civil engineering, comprising the step of removing all of the reactive solvent from the mixture of the core material and the pressure-sensitive adhesive mixture, thereby providing the core material coated with the pressure-sensitive adhesive layer. 33. The method of claim 32 , wherein the step of drying the core material comprises the step of reducing the moisture level of the core material to 1% by weight or less . The method according to claim 32 or 33, wherein the drying step includes a step of drying at 104 ° C. The method according to claims 32 to 34, comprising a step of preparing the pressure-sensitive adhesive layer at a temperature of 40 to 90 ° C before the step of applying . 36. The method according to claims 32 to 35, comprising a step of preparing the pressure-sensitive adhesive layer by mixing for 10 minutes before the step of applying . 37. A method according to claims 32-36, wherein the concentration in the aqueous adhesive mixture ranges between 1 wt% and 99 wt% . The method according to claims 32 to 37, wherein the aqueous solvent is water . The method according to claims 32 to 38 , wherein the step of removing the aqueous solvent is performed by tumble drying . The step of mixing the core material having the pressure-sensitive adhesive layer with an additive selected from the group consisting of a colorant, a UV-resistant agent, a bleaching agent, and an abrasive before the covering step is further included. 40. The method according to 39.