Abstract: The present invention relates to a metal collecting material formed of an organic polymer fiber base material into which a functional group having a metal adsorbing function is introduced, in which the metal collecting material has a nonwoven fabric form, an opening diameter of 10 to 300 ?m, an aperture ratio of 10 to 50%, a thickness of 10 to 500 ?m, and a weight per area of 5 to 25 g/m2, and a fiber diameter of the organic polymer fiber is 5 to 50 ?m.

Abstract: A method of preparing a gel from carboxymethyl cellulose alkali metal salt, which is an anionic cellulose derivative, by using acid or acid solution. To increase the strength and the elasticity of a gel, a water-insoluble metal compound or organic reinforcement is added when mixing. The obtained gel is one of environmentally friendly type gels because the raw material is derived from plant.

Abstract: Gel for radiation dosimeter including a gel part (A) and a gel part (B) that become cloudy when exposed to a fixed dose or more, wherein said gel part (A) exposed to more than a specified dose above the fixed dose maintains a cloudy state regardless of the decrease in external temperature; and said gel part (B) exposed to less than the specified dose above the fixed dose changes gradually from a cloudy state into a transparent state according to the decrease in external temperature.

Abstract: After adding water to the carboxymethyl carrageenan which is raw material and mixing them well, the ionizing radiation of more than fixed dose is irradiated to the obtained paste sample of fixed concentration. As a result, an excellent hydrogel in heat resistance which does not dissolve at 50° C. or more can be obtained. The manufactured gel can be used for many kinds of products. Because this gel has a biodegradation characteristic, it is possible to dispose by composting.

Abstract: A gel manufactured by irradiating ionizing radiation in the range of 5-1000 kGy to an obtained paste compound of a density of 10% by weight or more after adding water to carboxymethyl carrageenan and wherein each gram of dry gel obtained is capable of absorbing 20 grams or more of water. The ionizing radiation may be gamma rays, electron beams or X-rays.

Abstract: A method of forming a zirconium-loaded fibrous adsorbent material having phosphoryl groups, the method including: grafting a reactive monomer having phosphoryl groups onto a polymeric substrate; and loading zirconium such that the zirconium-loaded fibrous adsorbent material has a zirconium content in an amount of 4.0 or 4.2 mmol/g.

Abstract: [Problems to be Solved] To provide highly hydrous contact lenses having a cellulose derivative as an essential component. [Means to Solve the Problems] The highly hydrous contact lens formed by exposing a pasty mixture containing a cellulose derivative, a polymerizable compound couplable to the foregoing cellulose derivative, and water to radiation.

Abstract: A surface-modified blade rubber includes a surface modified by being subjected to irradiation treatment that generates radical active sites in the blade rubber and polymerization for graft polymerization starting from a generated radical active site. A method for modifying a blade rubber surface includes subjecting rubber of a blade rubber to irradiation treatment that generates radical active sites and polymerization for graft polymerization starting from a generated radical active site.

Abstract: Gel for radiation dosimeter including a gel part (A) and a gel part (B) that become cloudy when exposed to a fixed dose or more, wherein said gel part (A) exposed to more than a specified dose above the fixed dose maintains a cloudy state regardless of the decrease in external temperature; and said gel part (B) exposed to less than the specified dose above the fixed dose changes gradually from a cloudy state into a transparent state according to the decrease in external temperature.

Abstract: Filter media for liquid purification, which can remove metal compounds or metal ions containing in polishing or washing liquids such as alkali, acid solution or ultra-pure water used for silicon wafers of semiconductors. Removal of metals from various kind of liquid such as inorganic chemicals, organic solvent, or industrial waste water are also the subject of the present invention. The Filter media made of melt-blown nonwoven substrate comprising of aethylene/norbornene copolymer represented by the following formula [1] and/or a polycyclic norbornene polymer represented by the following formulae [2](a),(b),(c) as raw material, wherein said ethylene/norbornene copolymer and said polycyclic norbornene polymer have a glass transition temperature (Tg) selected in a range from 80 to 180° C. and melt volume rate (MVR) (ISO 1133, measuring conditions: 260° C., 2.

Abstract: [Problems to be Solved] To provide highly hydrous contact lenses having a cellulose derivative as an essential component. [Means to Solve the Problems] The highly hydrous contact lens formed by exposing a pasty mixture containing a cellulose derivative, a polymerizable compound couplable to the foregoing cellulose derivative, and water to radiation.

Abstract: A zirconium-loaded fibrous adsorbent material having phosphoryl groups which is produced by first grafting a reactive monomer having phosphoryl groups onto a polymeric substrate and then loading zirconium. One or more methods of using the zirconium-loaded fibrous adsorbent material to recover arsenic, phosphoric ions, and/or fluoride ions are disclosed.

Abstract: A method of forming a zirconium-loaded fibrous adsorbent material having phosphoryl groups, the method including: grafting a reactive monomer having phosphoryl groups onto a polymeric substrate; and loading zirconium such that the zirconium-loaded fibrous adsorbent material has a zirconium content in an amount of 4.0 or 4.2 mmol/g.

Abstract: After adding water to the carboxymethyl carrageenan which is raw material and mixing them well, the ionizing radiation of more than fixed dose is irradiated to the obtained paste sample of fixed concentration. As a result, an excellent hydrogel in heat resistance which does not dissolve at 50° C. or more can be obtained. The manufactured gel can be used for many kinds of products. Because this gel has a biodegradation characteristic, it is possible to dispose by composting.

Abstract: The high-frequency substrate is constructed of a base member and a conductor adhered to the base member, and the base member is composed of a polymer which is a fluoropolymer having a conductor-affinitive monomer graftpolymerized at a grafting percentage of 1% or less by weight. After reactive sites necessary for graftpolymerization are formed on a film of a fluoropolymer under an oxygen-free atmosphere by irradiating the film with an electron beam or the like, the fluoropolymer film is introduced into a solution of a conductor-affinitive monomer so as to cause graftpolymerization, and a conductor is adhered thereto to thereby produce a substrate, with a grafting percentage of the monomer to the fluoropolymer being 1% or less by weight in the graftpolymerization. The technique leads to the production of a high-frequency substrate having superior adhesion force with respect to the conductor.

Abstract: A fibrous catalyst for production of biodiesel by transesterification of oil/fat and alcohol, in which a graft chain is introduced into a polymer fiber substrate through graft polymerization, and the graft chain has one or more functional groups selected from amino groups and quaternary ammonium groups, and a hydroxide ion.

Abstract: An object is to provide a modified xanthan gum, a modified gum arabic, and a modified tamarind seed gum produced by crosslinking a naturally occurring polysaccharide such as xanthan gum, gum arabic, or tamarind seed gum, by irradiating them with radiation, and methods for crosslinking xanthan gum, gum arabic, and tamarind seed gum. In one aspect, the invention is a modified xanthan gum produced by crosslinking xanthan gum by irradiating a solution containing 10 to 70% by weight of xanthan gum with 5 to 200 kGy of radiation. In another aspect, the invention is a modified gum arabic produced by crosslinking gum arabic by irradiating a solution containing 10 to 50% by weight of gum arabic with 5 to 200 kGy of radiation. In another aspect, the invention is a modified tamarind seed gum produced by crosslinking tamarind seed gum by irradiating a solution containing 10 to 50% by weight of tamarind seed gum with 5 to 50 kGy of radiation.

Abstract: To provide a technique for producing a high-frequency substrate featuring a superior adhesion force of a conductor. The high-frequency substrate is constructed of a base member and a conductor adhered to the base member, and the base member is composed of a polymer which is a fluoropolymer having a conductor-affinitive monomer graftpolymerized at a grafting percentage of 1% or less by weight. After reactive sites necessary for graftpolymerization are formed on a film of a fluoropolymer under an oxygen-free atmosphere by irradiating the film with an electron beam or the like, the fluoropolymer film is introduced into a solution of a conductor-affinitive monomer so as to cause graftpolymerization, and a conductor is adhered thereto to thereby produce a substrate, with a grafting percentage of the monomer to the fluoropolymer being 1% or less by weight in the graftpolymerization.

Abstract: A zirconium-loaded fibrous adsorbent material having phosphoryl groups which is produced by first grafting a reactive monomer having phosphoryl groups onto a polymeric substrate and then loading zirconium. One or more methods of using the zirconium-loaded fibrous adsorbent material to recover arsenic, phosphoric ions, and/or fluoride ions are disclosed.

Abstract: A rubber product for wiping, a rubber for a wiper blade, a method for producing a rubber for a wiper blade, and a wiper unit. The rubber product for wiping, for example, includes a hydrophilic gel-like surface treatment layer coated on at least a wiping surface of the rubber product, wherein the wiping surface is softer due to water absorption when moistened than when dried.