| 摘要 |
PURPOSE:To diffuse a perfume and a drug in uniform concentration for a long period by a method wherein a perfume, a fertilizer, or a drug are carried by a molded product containing optical anisotropic porous carbon microgranular activated coal or microgranular activated coal. CONSTITUTION:A perfume, fertilizer, or a drug is carried to a molded product containing optical anisotropic porous carbon microgranular activated coal or microgranular activated coal. Precursor particles of optical anisotropic porous carbon microgranular activated coal can be manufactured by producing spherulite, in which carbon six-membered ring net surfaces are laminated in parallel in a pitch, in a process of heating petroleum series and coal series pitch. Using activated coal is produced by activating mesocarbon microbeads, being precursor particles, as it is or after an activating assistant is applied on the surface of mesocarbon microbead. Various perfumes, fertilizers, a moldproofing agent, a rustproofing agent, a repellent, and agricultural chemicals are used as a perfume, a fertilizer, and drug, carried to granular activated coal or a molded product containing activated coal, according to application. |
