Abstract:
PURPOSE: To surely protect the core end of the light transmission tube from the external environment, to prevent the thermal influence by direct irradiation of the core of a light transmission tube with light by particularly mounting this window member at the end of a light incident side and to easily execute the attachment and detachment of a window member to and from the light transmission tube and the fixation thereof to the tube as well as the release thereof. CONSTITUTION: This window member is attachably and detachably mounted at the end of the light transmission tube formed by packing the solid core having a refractive index higher than the refractive index of the clad of a tubular clad into this clad so as to cover the end face of the core. The window member described above includes a first tubular body 1 which is inserted onto the clad and is mounted with a light transmissive window body 2 closing the aperture at the front end, a second tubular body 5 which is inserted onto the clad, a means which couple both these tubular bodies 1, 5 to each other and an O-ring 9 which is interposed between the two tubular bodies 1 and 5 and of which the inner peripheral surface comes into tight contact with the clad by plastic deformation in a radial direction when both tubular bodies 1, 5 are coupled.
Abstract:
PURPOSE: To ensure superior light transmittance and to improve optical transmission function by filling the interior of a tubular clad with a polymer of a purified monomer obtd. by treating an acrylic monomer with alumina as a core. CONSTITUTION: In an optical transmission tube obtd. by filling the interior of a tubular clad with a solid core having a higher refractive index than the clad, a polymer of a purified monomer obtd. by treating an acrylic monomer, an acrylic modified silicone monomer or an acrylic modified urethane monomer with alumina is used as the core. A material forming the hollow tubular clad is, e.g., a polydimethyl-siloxane polymer having a low refractive index and the acrylic monomer is, e.g. a compd. represented by the formula (where R is H or methyl and R us 1-20C alkyl). Basic alumina is preferably used as the alumina for treating the monomer because it has the highest polymn. inhibitor removing effect.
Abstract:
PURPOSE:To cut a light transmitting tube in a desirable length at the time of use and prevent occurrence of peeling at the time of bending the tube by filling the inside of a clad material made of fluororesin with a core material made of methacrylic resin or acrylic resin polymerized with graft polymer and uniting the clad material and the core material. CONSTITUTION:A fluororesin tube 3 in which a graft polymer face of methacrylic acid or acrylic acid monomer is formed in the inner face is used as a clad material, methacrylic acid or acrylic acid monomer is put in the tube and polymerized and the obtained methacrylic resin or acrylic resin is used as a core material. That is, methacrylic acid or acrylic acid monomer is graft-polymerized in the inner face of the fluororesin tube 1 and methacrylic acid or acrylic acid is further polymerized with the graft polymer in the inner face. Consequently, methacrylic acid or acrylic acid monomer is polymerized in the graft-polymer face and thus a light transmitting tube in which methacrylic resin or acrylic resin is firmly connected with the fluororesin is obtained.
Abstract:
PURPOSE:To lessen the coloration of a core material, improve transparency and bending property of the core material, and make the core material desirably usable for decorative purposes such as displays, etc., by using a polymer as the core material wherein the polymer is prepared by polymerization of a monomer to which saturated organic carboxylic acid is added. CONSTITUTION:Regarding a light transmitting tube composed of a hollow tubular transmitting clad material and a transparent core material having a refractive index higher than that of the clad material, a polymer prepared by polymerization of monomer to which a saturated organic carboxylic acid is added is used as the core material. In that case, the type of the monomer is not specifically limited and one or more kinds of (meth)acrylic acids, (meth)acrylic acid esters are effectively used and the copolymer is prepared by homopolymerization of one of the monomer or copolymerization of two or more monomers. Univalent saturated carboxylic acids with 1-3 carbon number e.g. formic acid, acetic acid, and propionic acid, and univalent saturated carboxylic acids with 2-30 carbon number e.g. oxalic acid, succinic acid, adipic acid are included in the saturated organic carboxylic acids.
Abstract:
PURPOSE:To eliminate foam-like voids in the interface between a core material and a clad material and prevent the peeling of the materials from each other by filling the inside of the transparent clad part with a liquid monomer from which transparent polymer can be formed and polymerizing the monomer successively in the direction from one end of the clad material to the other end. CONSTITUTION:The inside of a hollow tubular transparent clad material 1 one end opening of which is sealed is filled with a monomer 2 from which a transparent polymer having refractive index higher than that of the clad material 1 can be formed, and the monomer 2 is polymerized successively in the direction from one end 1a side of the clad material 1 to the other end 1b side to form a core material. In that case, a material such as plastics, elastomers, etc., which has flexibility and a low refractive index and can be formed into tubes is preferable as of the clad material 1. One or more kinds of (meth)acrylic acids and (meth)acrylic acid ester monomers are preferably used as the monomer 2 from the view points that the monomer should be fluidic, should have high adhesion strength particularly to the clad material 1, and should be transparent, so that the monomers are homopolymerized or copolymerized.
Abstract:
PURPOSE:To enhance org. solvent resistance, org. gas resistance, humidity resistance, water resistance and chemical resistance by forming a dry plating membrane of a metal or a metal compound to the outer peripheral surface of an inner pipe made of a synthetic resin and forming a rubber layer on said plating membrane through an adhesive. CONSTITUTION:A dry plating membrane 2 of a metal or a metal compound is formed to the outer peripheral surface of an inner pipe 1 made of a synthetic resin whose inner peripheral surface is directly brought into contact with a medium and an adhesive layer 3 is formed thereon by coating and a rubber layer 4 is applied thereto to be bonded to the inner pipe 1 made of the synthetic resin and, if necessary, a reinforcing layer 5 and a rubber cover layer 6 are further provided. The thickness of the resin pipe is pref. set to 5-300mum from the aspect of forming properties, barrier characteristics and flexibility. The kind of the metal or metal compound is not limited and the metal or metal compound can be appropriately selected with due regard to objective functions as a barrier layer such as org. gas resistance, org. solvent resistance, chemical resistance, water resistance, humidity resistance or the like and the thickness of the membrane is pref. 10Angstrom -100mum.
Abstract:
PURPOSE:To obtain the titled composition composed of a vinylpyridine/styrene/ butadiene terpolymer rubber, a phenol/formaldehyde condensed phenolic resin and an organic solvent, having excellent thermal stability, etc., and useful for the vulcanization and bonding of an unvulcanized rubber to various materials. CONSTITUTION:The objective composition is composed of (A) a vinylpyrodine/ styrene/butadiene terpolymer rubber preferably having a vinylpyridine content of 5-50mol%, (B) a phenol/formaldehyde condensed phenolic resin preferably composed of (i) a resol and novolak phenolic resins soluble in organic solvent and having a weight-average molecular weight of 200-3,000 and (ii) granular phenolic resin having high molecular weight and insoluble in organic solvent and (C) an organic solvent. The amounts of the components (i) and (ii) are preferably 80-250pts.wt. and 60-200pts.wt. per 100pts.wt. of the component A, respectively.
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of an electrode for a polymer electrolyte fuel cell with small deterioration of performance even if air is used in place of oxygen as an oxidizer gas, and superior in practical use. SOLUTION: The manufacturing method of the electrode for the polymer electrolyte fuel cell comprises (i) a process to produce a fibril-like polymer by electrolytic oxidation polymerization of a compound having an aromatic ring on a conductive porous support body, (ii) a process to calcine the fibril-like polymer and produce a carbon fiber on the conductive porous support body, (iii) a process to make carry a metal catalyst on the carbon fiber, and (iv) a process to coat a solution dissolving an ion conductive polymer in a solvent and having water over 50 wt.% of the solvent and the remainder being isopropanol and/or n-propanol on the carbon fiber carrying the metal catalyst. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for treating surfaces of carbon fibers by which permeability of a plating liquid into the interior of the carbon fibers is enhanced and a large amount of a metal can be uniformly supported. SOLUTION: The method for treating the surfaces of the carbon fibers is carried out as follows. A compound having an aromatic ring is subjected to oxidative polymerization to produce a fibrillar polymer. The resultant fibrillar polymer is baked to produce the carbon fibers. The surfaces of the carbon fibers are treated with an alkaline degreasing solution. Furthermore, an amine compound and a surfactant are preferably contained in the alkaline degreasing solution. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To realize improvement of luminance of an organic EL panel, reduction of a driving voltage and extension of a service life of an organic EL element by efficiently extracting luminescence of the organic EL element. SOLUTION: This organic EL panel is provided with: an antireflection film 5 between a positive electrode 2 formed of a transparent conductive film of the organic EL element 10 formed on a transparent substrate 1, and the transparent substrate 1. Reflection of light from the organic EL element 10 is prevented by the antireflection film 5, and luminescence of the organic EL element 10 is efficiently extracted. COPYRIGHT: (C)2006,JPO&NCIPI