Abstract: Filtration apparatus prevents a membrane filter from fouling by providing a UV irradiation apparatus. The filtration apparatus comprises a filtration tank which contains a membrane filter with a pore size of 0.1 to 1 &mgr;m connected to the UV irradiation equipment, an air diffusing pipe placed below the membrane filter, an air blower for sending air to the air diffusing pipe, a filtrate discharge pipe connected to the membrane filter, a flow meter and a flow control valve.

Abstract: A fine copper wire for electronic instruments is disclosed which comprises 0.05 to 10 ppm in total amount of either one or not less than two kinds of Ti, Zr, V, Hf, Cr, Ca, Mg, Y and rare-earth elements, 1 to 30 ppm pf oxygen and the remainder of Cu. A method of manufacturing therefor is described wherein the hot rolling is given to the ingot obtained by melting and casting in a nonoxidative atmosphere or in vacuum, then stretch processing and at least once or more times of intermediate annealing are repeated to finish to a fixed diameter of wire, and thereafter annealing is carried out under nonoxidative or reducible atmosphere to obtain desired mechanical characteristics.

Abstract: A thermal transfer image receiving material is disclosed comprising a support having thereon at least one dye image receiving layer containing a polyester resin containing anionic groups and containing phenylene groups in the linear chain of the resin.

Abstract: A fine copper wire for electronic instruments is disclosed which comprises 0.05 to 10 ppm in total amount of either one or not less than two kinds of Ti, Zr, V, Hf, Cr, Ca, Mg, Y and rare-earth elements, 1 to 30 ppm of oxygen and the remainder of Cu. A method of manufacturing therefor is described wherein the hot rolling is given to the ingot obtained by melting and casting in a nonoxidative atmosphere or in vacuum, then stretch processing and at least once or more times of intermediate annealing are repeated to finish to a fixed diameter of wire, and thereafter annealing is carried out under nonoxidative or reducible atmosphere to obtain desired mechanical characteristics.