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: This invention relates to functional nonwoven filter media provided by radiation-induced graft copolymerization and its production method. Meltblown type of nonwoven (Meltblown) comprised of fine fibers, less than 8 micron in diameter, of polyolefin or polyamide is chosen as the suitable grafting trunk polymer. The production methods are composed of following steps, 1) irradiation less than 30 kGy dose to the Meltblown with electron beam or gamma ray; 2) graft copolymerization of emulsified vinyl monomer onto the Meltblown; and 3) chemical conversion of ion exchange group onto the grafted vinyl monomer. These steps are independently conducted in their suitable operation conditions.

Abstract: A surface hardened aluminum part having excellent heat resistance and abrasion resistance obtained by forming, on the surface of an aluminum base material, an alloy layer that has a uniform composition and uniform hardness, being free from cracks. An aluminum alloy powder made of aluminum and metals each of which forms an intermetallic compound of high hardness with aluminum is prepared. This aluminum alloy powder is supplied onto the aluminum base material and the aluminum or aluminum alloy contained in the aluminum base material is alloyed with the aluminum alloy powder using a high-density energy heat source to form an alloy layer. The alloy layer thus formed has an intermetallic compound of high hardness uniformly distributed throughout the layer so that the hardness of the alloy layer is uniform and cracking is unlikely to occur.

Abstract: A laser padding material in accordance with the present invention comprises copper as its main component and at least one, as other contained elements, selected from the group consisting of 1-5 weight % of nickel (Ni), 0.2-5 weight % of silicon (Si), less than 1 weight % of boron (B), less than 2 weight % of phosphorus (P) and less than 3 weight % of manganese (Mn), whereby there can be easily formed at a high speed a padded layer which is high both in sliding friction resistance and in quality.In accordance with a laser padding method of the present invention, since material powder having such a composition as mentioned above is blown onto a metal base material and at the same time a laser beam is irradiated thereon in an inert gas atmosphere to thereby melt the material powder and form a padded layer, there can be easily formed at a high speed a padded layer which is high both in sliding friction resistance and in quality.

Abstract: A fragrant fibrous structure, such as fabrics, apparels or the like, provided with microcapsules encapsulating a perfume and a resinous binder, preferably a silicone resin, in a weight ratio of 2/1 to 1/5, an add-on amount in the aggregate of said microcapsules and resinous binder being 0.3.about.7.0% based on the weight of the portion to which said microcapsules and resinous binder are adhered, of the fibrous structure. The process for preparing the above fibrous structures comprises applying a treating liquid comprising microcapsules composed of an external wall of a formaldehyde based resin enclosing a perfume and a resinous binder, preferably a low temperature reactive organopolysiloxane prepolymer emulsion, preferably together with a pressure absorbing agent, to at least a part of a fibrous structure and then drying the fibrous structure at a temperature of less than 150.degree. C. to fix said microcapsules on fiber surfaces of the fibrous structure.

Abstract: A fragrant fibrous structure, such as fabrics, apparels or the like, provided with microcapsules encapsulating a perfume and a resinous binder, preferably a silicone resin in a weight ratio of 2/1 to 1/5, an add-on amount in the aggregate of said microcapsules and resinous binder being 0.3.about.7.0% based on the weight of the portion to which said microcapsules and resinous binder are adhered, of the fibrous structure. The process for preparing the above fibrous structures comprises applying a treating liquid comprising microcapsules composed of an external wall of a formaldehyde based resin enclosing a perfume and a resinous binder, preferably a low temperature reactive organopolysiloxane prepolymer emulsion, preferably together with a pressure absorbing agent, to at least a part of a fibrous structure and then drying the fibrous structure at a temperature of less than 150.degree. C. to fix said microcapsules on fiber surfaces of the fibrous structure.

Abstract: The heat retaining article according to the invention comprises at least one inflatable envelope attached on a sheet material. The envelope is made of an air-impermeable sheet which is produced by treating a cloth with at least one synthetic or natural rubber. The heat retaining property of the article can be controlled by adjusting the amount of air filled in the envelope.

Abstract: Durable excellent water absorption property and antistatic property can be given to synthetic fiber by a simple method. In the method, a polymerization initiator is absorbed in the fiber and then the fiber is applied with a water-soluble polymerizable monomer and heat treated to form a polymer thereon.

Abstract: A novel process for imparting durable antistatic and hygroscopic properties together with an excellent hand to fibers comprised of a high polymer having active hydrogen atoms in its molecule or fibrous structures made thereof is provided. The process is performed by heat treating such fibers or fibrous structures in the presence of a treating solution comprising at least one water-soluble vinyl monomer, acid and water. When the fibers impregnated with the solution are heated, the water-soluble vinyl monomers are graft polymerized with the fibers. The fibers are considered to act as a polymerization initiator, so that the graft polymerization reaction according to the present invention, different from conventional processes, can be effected without the aid of any polymerization initiators such as persulfates or peroxides.