Adsorbents, process for producing the same, and applications thereof

Abstract

An adsorbent of free of the dust emission derived from an adsorbing material is provided. The surface of the adsorbing material such as activated carbon is coated by a porous coating layer of a polymer material. 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. The polymer material may preferably be fluororesins, polyamide resins, polyimide resins, polyester resins, polystyrene resins, polyolefin resins, polycarbonate resins, polysulfone resins, acrylic resins, cellulose resins, vinyl chloride resins, polyacetal resins, and polyurethane resins. The adsorbent can be employed for indoor ambient air cleaning members, methods for cleaning air, air cleaning devices, dehumidifying materials for inner gas of dual-glass window, drying agents for organic solvents, adsorbents for hard disk drives and freshness keeping member. Alternately, the adsorbent can be employed for ambiance humidity regulating members having better long duration of intake and release ability of moisture, comprising the adsorbing material such as sodium sulfate, the surface of which is coated with the porous coating layer comprising polymer materials.

Dependencies are inferred from the claim text.