초록 ▼

An adsorbent includes core particles containing an adsorbing material; a porous coating layer including a polymer material that coats the core particles; and an underlying layer containing a metal compound and disposed between the core particles and the porous coating layer. The porous coating layer

An adsorbent includes core particles containing an adsorbing material; a porous coating layer including a polymer material that coats the core particles; and an underlying layer containing a metal compound and disposed between the core particles and the porous coating layer. The porous coating layer is formed by spraying and applying a suspension or a solution containing the polymer material over the adsorbing material, or by immersing the adsorbing material into the suspension or the solution.

대표청구항 ▼

1. An adsorbent comprising:core particles containing an adsorbing material; a porous coating layer including a polymer material that coats said core particles; and an underlying layer containing a metal compound and a water-soluble polymer and disposed between the core particles and the porous coati

1. An adsorbent comprising:core particles containing an adsorbing material; a porous coating layer including a polymer material that coats said core particles; and an underlying layer containing a metal compound and a water-soluble polymer and disposed between the core particles and the porous coating layer, said water-soluble polymer being at least one selected from the group consisting of polymers of sugar, cellulose derivatives, alginic acid, methacrylic acid, acrylic acid, vinylpyrrolidone, vinyl alcohol, and oxyolefins. 2. The adsorbent according to claim 1, wherein said adsorbing material is at least one selected from the group consisting of activated carbon, an inorganic oxide, a compound having ion exchange capacity and a modified compound thereof, an ion exchange resin, and a chemical deodorizer.3. The adsorbent according to claim 2, wherein said inorganic oxide is at least one selected from the group consisting of silica gel, alumina gel, zeolite, a molecular sieve, diatomearth and iron oxide.4. The adsorbent according to claim 2, wherein said compound having ion exchange capacity is at least one selected from the group consisting of chitosan, dextran sulfate, polyallylamine, sulfonated polystyrene resins, polyacrylic acid, polymethacrylic acid and a derivative thereof.5. The adsorbent according to claim 1, wherein said polymer material is at least one selected from the group consisting of a fluororesin, a polyamide resin, a polyimide resin, a polyester resin, a polystyrene resin, a polyolefin resin, a polycarbonate resin, a polysulfone resin, an acrylic resin, a cellulose resin, a vinyl chloride resin, a polyacetal resin, a polyurethane resin and a copolymer thereof, and a derivative thereof.6. The adsorbent according to claim 1, wherein said polymer material is at least one selected from the group consisting of polytetrafluoroethylene, polyhexafluoropropylene, polydifluoroethylene, polyvinyliden fluoride, polyvinyl fluoride, and a copolymer thereof.7. The adsorbent according to claim 1, wherein said porous coating layer has a thickness of 0.01 μm to 1,000 μm.8. The adsorbent according to claim 1, wherein said porous coating layer has an average pore diameter of 0.01 μm to 500 μm.9. The adsorbent according to claim 1, wherein said porous coating layer has a porosity of 3% to 90%.10. The adsorbent according to claim 1, wherein said core particles are formed by a tableting process.11. The adsorbent according to claim 1, wherein said porous coating layer is colored.12. The adsorbent according to claim 1, wherein said metal compound is at least one selected from the group consisting of oxide, hydroxide, carbonate, sulfates, phosphate, metasilicate, borate, oxalate, tungstate, molybdate, vanadate, chromate, selenate, and manganate of a metal.13. The adsorbent according to claim 1, wherein said metal compound contains at least one metal selected from the group consisting of titanium, zirconium, silicon, zinc, iron, manganese, aluminum, magnesium, nickel, copper, silver, barium, calcium, scandium, bismuth, molybdenum, niobium, neodymium, antimony, selenium, stannum, strontium, terbium, tellurium, thorium, and yttrium.14. The adsorbent according to claim 1, wherein said metal compound has a particulate shape having an average particle size of 0.001 μm to 50 μm.15. The adsorbent according to claim 1, wherein said underlying layer has a thickness of 1 μm to 10,000 μm.16. The adsorbent according to claim 1, wherein said core particles having said porous coating layer formed thereon are fixed on a member having a one-dimensional structure.17. The adsorbent according to claim 1, wherein said core particles having said porous coating layer formed thereon are fixed on a member having a two-dimensional structure.18. The adsorbent according to claim 17, wherein said core particles are fixed onto said member having the two-dimensional structure at a density of 0.1 to 100,000 particles per 1 cm2 of a surface of said member having the two-dimensional structure.19. The adsorbent according to claim 17, wherein said core particles having said porous coating layer formed thereon are fixed on one surface of said member having the two-dimensional structure, and an adhesive is applied on another surface of said member having the two-dimensional structure.20. The adsorbent according to claim 1, wherein said core particles having said porous coating layer formed thereon are fixed on a member having a three-dimensional structure.21. The adsorbent according to claim 20, wherein said core particles are fixed onto said three-dimensional structure at a density of 1 to 1,000,000 particles per 1 cm3 of a volume of said member having the three-dimensional structure.22. The adsorbent according to claim 1, wherein said core particles having said porous coating layer formed thereon are fixed to a member in a state of a layer having a thickness of a single particle to 1,000 particles.23. The adsorbent according to claim 22, wherein said core particles having said porous coating layer formed thereon are fixed to the member with an adhesive.24. The adsorbent according to claim 23, wherein said adhesive is an organic solvent type adhesive, a water type adhesive or a hot melt, type adhesive.25. The adsorbent according to claim 22, wherein said member includes a portion covered by an air permeable sheet.26. The adsorbent according to claim 22, wherein said member is entirely wrapped with an air permeable sheet.27. The adsorbent according to claim 22, wherein said member is contained in an air permeable container.28. The adsorbent according to claim 27, wherein said air permeable container is composed of an unwoven cloth, a woven cloth, a mesh, or a net.29. The adsorbent according to claim 1, wherein said core particles having said porous coating layer formed thereon are wrapped with an air permeable sheet.30. The adsorbent according to claim 29, wherein said core particles having said porous coating layer formed thereon are contained in the air permeable sheet in a number of 1 to 100,000,000.31. The adsorbent according to claim 29, wherein said air permeable sheet is composed of an unwoven cloth, a woven cloth, a mesh, or a net.32. A dehumidifying material for dehumidifying gas in a dual-glass window comprising the adsorbent according to claim 1.33. A drying agent for drying an organic solvent comprising the adsorbent according to claim 1.34. An adsorbent for a hard disk drive comprising the adsorbent according to claim 1.35. A freshness keeping member comprising the adsorbent according to claim 1.36. The freshness keeping member according to claim 35, wherein said core particles further comprises an oxidizing agent.37. The freshness keeping member according to claim 36, wherein said oxidizing agent is at least one selected from the group consisting of a mixture of ascorbic acid and an iron-containing compound, permanganates, manganese dioxide, chromates, dichromates, osmium tetraoxide, ruthenium tetraoxide, silver oxide and palladium chloride.38. The freshness keeping member according to claim 37, wherein said iron-containing compound is at least one selected from the group consisting of iron chloride, iron bromide, iron iodide, iron oxide, iron perchlorate, iron thiocyanate, iron sulfate, iron sulfide, iron acetate, iron oxalate, Mohr's salt, diiron monophosphide and triiron monophosphide.39. The freshness keeping member according to claim 36, wherein said porous coating layer includes a silver deposit layer.40. An indoor ambient air cleaning member comprising the adsorbent according to claim 1, wherein said adsorbing material adsorbs a toxic gas present within indoor ambience.41. An air cleaning machine comprising a cylindrical vessel containing the adsorbent according to claim 1, and a device for introducing air into said cylindrical vessel, wherein said adsorbent is freely moved when the air is introduced therein.42. The air cleaning machine according to claim 41, wherein said cylindrical vessel is tilted.43. A method for producing the adsorbent according to claim 1, comprising forming the coating layer by applying a liquid containing said polymer material onto a surface of said core particles.44. The method according to claim 43, wherein said coating layer is formed by spraying said liquid over said core particles.45. The method according to claim 43, wherein said coating layer is formed by immersing said core particles into said liquid.46. The method according to claim 43, wherein said liquid is a suspension of said polymer material.47. The method according to claim 43, wherein said liquid is a solution of said polymer material.48. The method according to claim 43, wherein, during said step of forming the coating layer or after said step of forming the coating layer, at least one of a step of heating and a step of decreasing a pressure is carried out to draw said porous coating layer.49. The method according to claim 43, wherein, during said step of forming the coating layer or after said step of forming the coating layer, a heating process is carried out so that said coating layer partially shrinks and partially expands.50. The method according to claim 43, wherein said core particles in said step of forming the coating layer are in a water-containing state, in an oil-containing state, or in a frozen state thereof.51. The method according to claim 43, wherein said liquid contains a pore-forming agent.52. The method according to claim 51, wherein said pore-forming agent is a water-soluble polymer or oligomer.53. The method according to claim 52, wherein said water-soluble polymer or oligomer is at least one selected from the group consisting of cellulose, poly(oxyolefin), polyvinylpyrrolidone, polyvinyl alcohol, a saponification compound of polyvinyl acetate, polyacrylic acid, polymethacrylic acid, and a derivative thereof.54. The method according to claim 53, wherein said water-soluble polymer or oligomer is at least one selected from the group consisting of methyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, polyvinylpyrrolidone, polyvinyl alcohol, polyethylene glycol, polypropylene glycol and a derivative thereof.55. The method according to claim 51, wherein said pore-forming agent is an oil soluble polymer or oligomer.56. The method according to claim 55, wherein said oil soluble polymer is liquid paraffin.57. The method according to claim 51, wherein said pore-forming agent is removed during or after the step of forming said coating layer.58. The method according to claim 57, wherein said pore-forming agent is removed by extraction, evaporation, sublimation or combustion thereof.59. A method for cleaning air comprising contacting air with an indoor ambient air cleaning member including the adsorbent according to claim 1.60. The method for cleaning air according to claim 59, wherein said adsorbent is contained in a cylindrical vessel, and said indoor ambient air cleaning member is freely convected when the air is introduced therein.61. The method for cleaning air according to claim 60, wherein said cylindrical vessel is tilted.62. An ambiance humidity regulating member, comprising core particles containing at least one humidity-regulating material of an acid, and a porous coating layer including a polymer material that coats said core particles, said acid being at least one selected from the group consisting of lactic acid, malic acid, tartaric acid, oxalic acid, chromic acid, dichromic acid, manganic acid, permanganic acid, thiocyanic acid, cyanic acid, carbonic acid, hydrochloric acid, perchloric acid, chloric acid, chlorous acid, hypochlorous acid, hydriodic acid, periodic acid, iodic acid, iodous acid, hypoiodous acid, sulfuric acid, sulfurous acid, nitric acid, nitrous acid, and phosphoric acid.63. The ambiance humidity regulating member according to claim 62, wherein said core particles further contains a hydrophilic polymer compound.64. The ambiance humidity regulating member according to claim 63, wherein said hydrophilic polymer compound is at least one selected form the group consisting of vinyl alcohol, vinylpyrrolidone, acrylic acid, methacrylic acid, a saponification compound of vinyl acetate, a cellulose ester, an oxyolefin, and a sugar.65. The ambiance humidity regulating member according to claim 62, wherein said core particles have an average particle size of 0.01 mm to 100 mm.66. The ambiance humidity regulating member according to claim 62, wherein said porous coating layer has a thickness of 0.1 μm to 1,000 μm. 67. The ambiance humidity regulating member according to claim 62, wherein said porous coating layer has an average pore size of 0.001 μm to 50 μm.68. The ambiance humidity regulating member according to claim 62, wherein said porous coating layer is formed of at least one selected from the group consisting of a fluororesin, a polyamide resin, a polyimide resin, a polyester resin, a polystyrene resin, a polyolefin resin, a polycarbonate resin, a polysulfone resin, an acrylic resin, a cellulose resin, a vinyl chloride resin, a polyacetal resin, a polyurethane resin, copolymers thereof, and derivative thereof.69. The ambiance humidity regulating member according to claim 62, wherein said porous coating layer is colored.70. A functional ambiance humidity regulating member comprising the ambiance humidity regulating member according to claim 62 and the adsorbent according to claim 1.71. An ambiance humidity regulating member, comprising core particles containing at least one humidity-regulating material of an acid salt, and a porous coating layer including a polymer material that coats said core particles, wherein the acid salt is at least one of an alkali metal salt, an alkaline earth metal salt, and an ammonium salt.72. The ambiance humidity regulating member according to claim 71, wherein said humidity regulating material is at least one selected from the group consisting of sodium sulfate, an alkali metal salt of phosphoric acid, an alkali metal salt of hydrogenphosphate, an ammonium salt of phosphoric acid, and an ammonium salt of hydrogen phosphate.73. The ambiance humidity regulating member according to claim 71, wherein said core particles further contains a hydrophilic polymer compound.74. The ambiance humidity regulating member according to claim 73, wherein said hydrophilic polymer compound is at least one selected from the group consisting of vinyl alcohol, vinylpyrrolidone, acrylic acid, methacrylic acid, a saponification compound of vinyl acetate, a cellulose ester, an oxyolefin, and a sugar.75. A functional ambiance humidity regulating member comprising the ambiance humidity regulating member according to claim 71 and the adsorbent according to claim 1.