Abstract: A method for forming a waterproof film includes: providing a main component container that contains a main component for forming a waterproof film and discharges the main component as a piston is pushed, and a curing agent container that contains a curing agent for the main component and discharges the curing agent as a piston is pushed, the containers being encased in a pair of retainer cases arranged in a parallel arrangement, respectively; pushing the pistons for the main component container and the curing agent container in a synchronized manner by a single, compressed air-driven cylinder device that is arranged adjacent to the pair of retainer cases; through respective supply hoses, feeding the discharged main component and the curing agent to a spouting gun module that is held by an operator and supplied with compressed air; mixing the main component and the curing agent in a static mixer unit in the spouting gun module; and blowing the mixture with the flow of compressed air onto an object to be waterp

Abstract: An improved process for producing superfines of metal is disclosed, which comprises reacting a metal halide containing gas with a reducing gas by causing to flow both the stream of a metal halide containing gas and the stream of a reducing gas concurrently but at different velocities so as to form an interfacial instability region in the reaction zone, and nuclei are formed in said instability region whereas said reaction zone is quenched (cooled) to inhibit the excessive growth of said nuclei. Application of a magnetic field to the reaction zone can enhance the degree of fineness and magnetic properties of the superfines thus produced.

Abstract: Indium is recovered effectively from an aqueous leached solution containing indium ions, together with other ions such as ferric ions, zinc ions, etc. if any, by adjusting the pH of the aqueous solution to 0.25-4.5, extracting the indium ions from the aqueous solution with an organic solvent solution formed by diluting an extraction reagent containing a monoalkylphosphoric acid and/or a dialkylphosphoric acid and a trialkylphosphoric acid in 1:2-5 by volume ratio with a phase-stabilizing water-immiscible organic solvent and then back-extracting the indium ions in the organic solvent solution with an aqueous sulfuric acid solution.