摘要:
A discharge hole of a lower nozzle is directed at an angle of 5 degrees to 40 degrees slanting inward with respect to a normal to the upper surface of a bottom plate. Thus, the flow pressure of a processing solution discharged through the discharge hole is not excessively reduced. Further, a circulation area of the processing solution does not expand widely in an inner bath. As a result, the processing solution in the inner bath is effectively displaced while the processing solution smoothly flows into gaps between substrates.
摘要:
An object of the present invention is to solve problems of conventional ozone-scavenging materials and to provide an ozone-scavenging material capable of effectively decomposing/removing ozone at low cost. To attain the above object, the present invention provides an ozone-scavenging material characterized in that a metal having ozone-decomposing ability or an oxide thereof is supported on an organic polymer base having a polymer side chain having an ion exchange group on the backbone of a polymer. Said ozone-scavenging material can be prepared by introducing a polymer side chain having an ion exchange group onto the backbone of an organic polymer base, bringing the resulting organic polymer material into contact with a salt of a metal having ozone-decomposing ability to support the ion of said metal on the ion exchange group, and then precipitating fine particles of said metal or an oxide of said metal on the organic polymer material by oxidation or reduction.
摘要:
An object of the present invention is to provide a filter material capable of killing microorganisms, bacteria, fungi or viruses in air or liquids. Antimicrobial organic polymer materials of the present invention comprise an organic polymer material having a polymer side chain containing a unit derived from an N-alkyl-N-vinylalkylamide on a backbone of a polymer substrate, wherein triiodide ion is carried on said organic polymer material.
摘要:
An object of the present invention is to provide a water adsorbing/desorbing organic polymer material having excellent water adsorbing/desorbing performance and which is inexpensive and readily disposable by incineration or the like. In order to attain this object, water adsorbing/desorbing organic polymer materials of the present invention are characterized by having a polymer side chain containing a hydrophilic group on the backbone of an organic polymer base.
摘要:
A method for evaluating performance of a chemical filter element is disclosed. A moisture content, a weight or a pressure loss of a filter element including an ion exchanger is determined, and the determined value is compared with a prescribed value. Alternatively, the determined value is converted into a residual ion exchange capacity of the filter element, and the residual ion exchange capacity is compared with a prescribed value. When the determined value or the residual ion exchange capacity is equal to or less than the prescribed value, the filter element is exchanged. On the other hand, when the determined value or the residual ion exchange capacity is more than the prescribed value, after waiting a prescribed period, the determining step and the comparing step are repeated.
摘要:
Separation functional fibers are produced by exposing fibers with a core/sheath structure to an ionizing radiation and then grafting a polymerizable monomer to the fibers. Ion-exchange fibers are produced by introducing, through radiation-initiated graft polymerization, ion-exchange groups into the sheath of each of composite fibers the core and the sheath of which are composed of different kinds of high-polymer components. The separation functional fibers and the ion-exchange fibers are useful in various applications such as the production of pure water in electric power, nuclear, electronic and pharmaceutical industries and the demineralization of high-salt content solutions in the production of foods and chemicals. The fibers are also useful in removing harmful components from gases, as well as odorous components such as ammonia.
摘要:
The improved electrically regenerable demineralizing apparatus uses ion exchangers that are produced by radiation-initiated graft polymerization and that are packed in the demineralizing compartment of an electrodialyzer. The apparatus may use a mosaic ion exchanger that consists of alternately arranged cation- and anion-exchange groups. Alternately, the apparatus may have an immobilized amino acid packed in the demineralizing compartment of an electrodialyzer. The apparatus maintains consistent water quality for a prolonged time, is capable of treating from small to large volumes of water and yet is easy to service and manage.
摘要:
A high frequency induction coupled plasma torch is disclosed. The torch is comprised of a multi-pipe structure and is used for forming a plasma flame by high frequency power induction. The torch is comprised of a plurality of pipes which are coaxially arranged within each other. Each of the pipes has one or more flanged openings positioned on its surface whereby it is interconnected to the adjacent pipe. By means of the flanged openings any given pipe may be interconnected with any number of outer pipes. The torch can be economically produced and maintained.
摘要:
A process for producing an optical transmission fiber is provided which comprises feeding highly pure halides, hydrides or organic compounds of Si and B by way of carrier gas on the outer surface of a fused silica rod or a fused silica pipe, or inner surface of a fused silica pipe, oxidizing them and depositing the products to form a pure fused silica layer or a doped fused silica layer containing B.sub.2 O.sub.3, melting the pipe and the deposited layer followed by a spinning. The SiO.sub.2 layer can alternatively contain fluorine instead of B.sub.2 O.sub.3. A further SiO.sub.2 layer can be deposited thereon to improve the spinning processability and lower the index of refraction of the B.sub.2 O.sub.3 containing layer.
摘要:
A method of manufacturing glass rod for optical waveguides is proposed. In this method, several gaseous mixtures or powdery mixtures of materials for glass forming are reacted at a high temperature and deposited on the top or end of a rotating glass rod which is initially deposited on a rotating base plate and grown in the form of a rod of a fixed powdery or vitreous state. It is possible to obtain the glass rod having a predetermined radial distribution of index of refraction.