Abstract: A multilayer glass structure constructed by joining the edge portions of a plurality of glass sheets by a sealant through spacers having an adsorbent filled therein. According to this invention, the adsorbent comprises a combination of a granular zeolite composed of a core of a synthetic zeolite/clay binder mixture containing the synthetic zeolite in an amount larger than its average content in the granular zeolite and a shell of a synthetic zeolite/clay binder mixture containing the clay in an amount larger than its average content in the granular zeolite, with granular activated carbon having on its surface 1 to 20% by weight, based on the activated carbon, of a coating of a synthetic resin latex. The adsorbent can effectively adsorb water vapor and the vapor of an organic solvent evaporated from the sealant, and prevent dew deposition on the glass surface. Moreover, it does not yield dust even when the glass structure is handled under severe conditions.

Abstract: Air-cleaning filter element prepared by applying a pressure-sensitive adhesive agent to at least a pair of three-dimensionally mesh-structured elastic-flexible webs, disposing evenly an adsorbent material, such as activated carbon, in a size range of 0.5 mm to 10 mm in diameter between said pair of elastic-flexible webs and pressing the same elastic-flexible webs together as superimposed. The air-cleaning filter element is free from such a deterioration of the adsorbent material as caused by an adhesive and any significant fluid pressure drop on passage of fluid.

Abstract: Air-cleaning filter element prepared by applying an adhesive agent such as a synthetic rubber latex to at least a pair of three-dimensionally mesh-structured elastic-flexible webs, disposing evenly an adsorbent material, such as activated carbon, in a size range of 0.5 mm to 10 mm in diameter between said pair of elastic-flexible webs and pressing the same elastic-flexible webs together as superimposed. The air-cleaning filter element is free from such a deterioration of the adsorbent material as caused by an adhesive and any significant fluid pressure drop on passage of fluid.

Abstract: A carbonaceous molecular sieve having micropores with diameters in the range of 4 to 6 Angstrom units and bromine as adsorbed on said carbonaceous molecular sieve is able to remove selectively low molecular weight organic gases such as ethylene, acetylene, methyl sulfide, acetaldehyde etc. from air and other gases containing the same with a reduced tendency toward deactivation with time, and is useful as a removing agent of low molecular weight organic gases.

Abstract: A closable container in which is enclosed brominated carbonaceous molecular sieve having micropores within the range of 4 to 6 Angstrom units in diameter and a method for prolonging the shelf-lives of green perishable foods and flowers by the use of said container.

Abstract: A deodorization method which comprises allowing a bad-smelling gas containing (a) hydrogen sulfide and/or a mercaptan, (b) a sulfide and/or a disulfide and (c) ammonia and/or an amine to contact (1) firstly with activated carbon, (2) then with activated carbon or clay mineral having an acid supported thereon, and (3) subsequently with activated carbon in the presence of chlorine or bromine.