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公开(公告)号：JPH03155110A
公开(公告)日：1991-07-03
申请号：JP29529789
申请日：1989-11-13
Applicant: KAO CORP
Inventor： SATO MASAHARU , IMANISHI KUNIHIKO , TANAKA MASAOMI , YASUDA YUTAKA
Abstract: PURPOSE:To improve high frequency characteristics and to reduce leakage current by introducing alcohol solution of oxidizing agent to the surface of deviative of a porous formed body, by bringing it into contact with water solution of pyrrole or pyrrole deviate and by forming a solid electrolyte through oxidation polymerization. CONSTITUTION:Oxidizing agent alcohol solution is introduced to the surface of deviative of a porous formed body; thereafter, it is brought into contact with water solution of pyrrole or pyrrole deviative and oxidation and polymerization are carried out; and then, a solid electrolytic layer which consists of highly conductive polypyrrole or dielectric thereof is formed on a surface of a dielectric inside a fine hole. Since oxidization agent is alcohol solution, it penetrates well inside the fine hole to cover a surface thereof. Since it is brought into contact with water solution of pyrrole or dielectric of pyrrole in the state, pyrrole or dielectric of pyrrole also penetrate well inside the fine hole and come into contact with oxidizing agent. Thereby, a solid electrolytic layer consisting of polymer of uniform and highly conductive polypyrrole or pyrrole deviative is formed on the surface of deviative inside the fine hole in a short time.
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公开(公告)号：JPH03127813A
公开(公告)日：1991-05-30
申请号：JP26768289
申请日：1989-10-13
Applicant: KAO CORP
Inventor： TANAKA YUKIOMI , SATO MASAHARU , IMANISHI KUNIHIKO , YASUDA YUTAKA
Abstract: PURPOSE:To improve heat resistance and weather resistance by introducing inert gas containing 1vol.% or lower of concentration of oxygen to an air gap in a capacitor element at the time of manufacturing the element or before sealing a sheath after manufacturing. CONSTITUTION:Inert gas containing 1vol.% or lower of concentration of oxygen is introduced into an air gap in a capacitor element before a heat treating step such as sealing of a sheath in the case of manufacturing a solid electrolytic capacitor in which a cathode material is formed of conductive polymer made of heterocyclic compound. Thus, it can prevent reaction of oxygen with conductive polymer such as polypyrrole, etc., at high temperature. Accordingly, even if a sheath is sealed and a heat resistance test is conducted, a decrease in its capacitance is extremely small, and an increase in its equivalent series resistance(ESR) is reduced. Thus, heat resistance and weather resistance can be improved.
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公开(公告)号：JPH03109713A
公开(公告)日：1991-05-09
申请号：JP24836089
申请日：1989-09-25
Applicant: KAO CORP
Inventor： SATO MASAHARU , TANAKA YUKIOMI , IMANISHI KUNIHIKO , YASUDA YUTAKA
Abstract: PURPOSE:To improve high temperature durability by specifying a ratio of oxygen permeability of a sheathing base material for sheathing a capacitor element in which part of electrodes for holding a dielectric material is polypyrrole to an average thickness. CONSTITUTION:A capacitor element 1 in which at least part of electrodes for holding a dielectric material is polypyrrole, and a sheathing base material 2 for sheathing the element 1 are provided. In this case, the material 2 has 0.2 or less of P/t, where P (unit, 10 cm .cm/cm .sec.cmHg) is oxygen permeability at 105 deg.C of the base material and t (unit, cm) is average thickness from the surface of the sheath to the element 1. Thus, the permeability of the material and the thickness of the material are controlled to suppress influence of oxygen to the polypyrrole for forming at least part of the electrodes. Accordingly, excellent high frequency characteristic and high temperature durability are improved.
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公开(公告)号：JPH0341160A
公开(公告)日：1991-02-21
申请号：JP17673889
申请日：1989-07-07
Applicant: KAO CORP
Inventor： HOSOKAWA YASUTOKU , YASUDA YUTAKA
IPC: C08K5/10 , C08L101/00
Abstract: PURPOSE:To obtain the title composition improved in liquid repellency and persistence thereof by using a specified perfluoroalkylated long-chain fatty acid ester. CONSTITUTION:A perfluoroalkyl alcohol is condensed with a linear or branched fatty acid through dehydration in the presence of p-toluenesulfonic acid, and the product is neutralized in an aqueous alkali solution to obtain a perfluoroalkylated long-chain fatty acid ester of the formula [wherein Rf is a 5-16C perfluoroalkyl; R1 is a 1-4C alkylene; and R2 is a 21-50C (un)saturated alkyl]. A thermoplastic resin such as PS, PVC or PE is melt-blended with 0.1-5wt.% said ester and optionally a filler, a pigment, an antistatic agent, etc.
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公开(公告)号：JPH02288215A
公开(公告)日：1990-11-28
申请号：JP10895889
申请日：1989-04-27
Applicant: KAO CORP
Inventor： TANAKA YUKIOMI , SATO MASAHARU , IMANISHI KUNIHIKO , YASUDA YUTAKA
Abstract: PURPOSE:To obtain a solid electrolytic capacitor having excellent heat resistance and high-frequency characteristics by introducing an oxidizer composed of the transition metal salt of an organic sulfonic acid compound or an organic sulfuric acid compound onto a dielectric and oxidation-polymerizing an aromatic compound on the dielectric. CONSTITUTION:A porous aluminum foil is chemical-conversion treated at 100V in an ammonium borate aqueous solution and an oxide film is formed, and the foil is washed and dried. The foil is dipped in a 25wt.%-methanol solution of dodecyl benzenesulfonic acid-iron (III) salt, and decompression-dried. A glass vessel 1 in which a pyrrole monomer 3 is admitted in a petri dish 2 is sealed with a silicone rubber plug 5 while the porous aluminum foil 4 is hung into the sealed vessel and brought into contact with the vapor of the pyrrole monomer for three hr at a normal temperature and normal pressure. The foil 4 is washed by methanol, and dried. The surface of the porous aluminum foil 4 is covered with dark black and green polypyrrole by the operation. The packing of polypyrrole into the air gap of the porous aluminum foil 4 obtained from the change of weight before and after a reaction after the operation is repeated five times is represented by 95%.
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Patent Agency Ranking
公开(公告)号：JPH02224316A
公开(公告)日：1990-09-06
申请号：JP4616889
申请日：1989-02-27
Applicant: KAO CORP
Inventor： SATO MASAHARU , TANAKA MASAOMI , IMANISHI KUNIHIKO , YASUDA YUTAKA
Abstract: PURPOSE:To obtain a large capacitance solid electrolytic capacitor having excellent characteristics as far as to a high frequency region and also having excellent reliability by a method wherein the surface of a porous molded body, made of film-formation metal having an oxide film, is wetted with an electrolyte containing a monomer to be used for electrolytic polymerization, and electrolytic polymerization is conducted using a work electrode provided making contact with said porous molded body. CONSTITUTION:The surface of the porous molded body of a film-forming metal 1, having an oxide film, is wetted with an electrolyte 4 containing a monomer for electrolytic polymerization, an electrolytic polymerization operation is conducted using the work electrode which is provided making contact with the porous molded body, and a resin or reticulate conductive high molecular compound is formed on the surface of the porous molded body. Then, a solid electrolyte is formed by conducting electrolytic polymerization on an aromatic compound using the above-mentioned conductive high molecular compound as the anode. Accordingly, the porous molded body is filled into their fine holes with solid electrolyte having sufficiently high conductivity. As a result, equivalent series resistance is made small, resonance frequency is increased to 1MHz or higher and excellent characteristics are shown as far as to a high frequency region, and a large capacitance solid electrolytic capacitor, having a large maximum allowable current and small leakage current, can be obtained.
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公开(公告)号：JPH02224315A
公开(公告)日：1990-09-06
申请号：JP4616789
申请日：1989-02-27
Applicant: KAO CORP
Inventor： TANAKA MASAOMI , SATO MASAHARU , IMANISHI KUNIHIKO , YASUDA YUTAKA
Abstract: PURPOSE:To obtain a solid electrolytic capacitor of large capacitance having excellent characteristics as far as to a high frequency region by a method wherein a work electrode, which is composed of a conductor having a monomer permeability provided in the vicinity of or making contact with a porous molded body of film-forming metal having an oxide film, is used in an electrolyte containing a monomer to be used for electrolytic polymerization. CONSTITUTION:A work electrode 3, composed of a conductor having monomer permeability provided in the vicinity of or making contact with a porous molded body 1 made of film-forming metal having an oxide film 2, is used. This work electrode 3 works as the starting point of electrolytic polymerization with which the conductive compound 7 as a solid electrolyte. The above-mentioned electrolytic polymerization occurs almost simultaneously on the whole part of the opposing surface of the porous molded body 1, reaction is effectively makes progress, and a conductive high molecular compound 7 is formed by sufficiently filling up the fine holes. Consequently, as the porous molded body 1 is sufficiently filled up to its fine holes with the solid electrolyte of high conductivity, equivalent series resistance is reduced, resonance frequency becomes 1MHz or higher, excellent characteristics are shown as far as to a high frequency region, and a large capacitance solid electrolytic capacitor, having a large maximum allowable current and small leakage current can be obtained.
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公开(公告)号：JPH01223161A
公开(公告)日：1989-09-06
申请号：JP5033488
申请日：1988-03-03
Applicant: KAO CORP
Inventor： FUJIO AKIRA , KOUMAE TOMOKO , YASUDA YUTAKA , TAKAIWA MIKIO
IPC: C08L33/02 , C08K3/28 , C08K3/30 , C08L101/00
Abstract: PURPOSE:To obtain the title composition with high water absorptivity, excellent in gel strength when swollen and stability with time of the swollen gel therefrom, thus suitable for absorptive materials for hygienic articles etc., by incorporating a water-absorptive resin with a specified amount of a reductive substance. CONSTITUTION:The objective composition comprising, as the essential components, (A) a water-absorptive resin, pref. a polyacrylic acid salt crosslinked form and (B) a reductive substance, pref. a compound selected from sulfur-contg. inorganic compounds and marcaptan compounds. This composition can be obtained by the following process: 0.01-10pts.wt., based on 100pts.wt. of the component A (on a dry basis), of the component B is incorporated in the component A directly or in the form of an aqueous or ethanol (or the like) solution, and furthermore, if needed, followed by incorporation of a phenolic antioxidant, a radical chain reaction inhibitor, a metal chelating agent etc. The resultant blend is then dried.
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公开(公告)号：JPS63125502A
公开(公告)日：1988-05-28
申请号：JP27153286
申请日：1986-11-14
Applicant: KAO CORP
Inventor： FUJIO AKIRA , YASUDA YUTAKA , KATADA NAOKI , TAMAOKI SEIJI
Abstract: PURPOSE:To prepare a lowly odorous telomer with a high efficiency and low cost, by first preparing a telomer using alkylmercaptan or a specified monomer as a taxogen and subsequently submitting the telomer to alkaline hydrolysis and distillation under reduced pressure to deodorize odorous matters contained therein. CONSTITUTION:A telomer is prepared using an alkylmercaptan, an ethylenically unsaturated carboxylic acid or sulfonic acid monomer as a taxogen. Subsequently, the telomer is submitted to alkaline hydrsolysis to convert odorous matters contained therein into lowly odorous matters and then distilled under reduced pressure to further deodorize it. The above-mentioned alkylmercaptan used herein should preferably be one having a 4-24C alkyl or hydroxyalkyl group. The ethylenically unsaturated carboxylic acid and sulfonic acid monomers used herein should preferably be (meth)acylic acid and 2-acrylamido-2- methylpropane-sulfonic acid.
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公开(公告)号：JPS61289009A
公开(公告)日：1986-12-19
申请号：JP12961385
申请日：1985-06-14
Applicant: KAO CORP
Inventor： FUKAZAWA JUNICHI , YASUDA YUTAKA , SATO TOMOJI , SHIDA JUN
IPC: A61K8/72 , A61K8/00 , A61K8/81 , A61Q1/00 , A61Q1/02 , A61Q1/04 , A61Q1/06 , A61Q1/10 , A61Q1/12 , A61Q3/02
Abstract: PURPOSE:A cosmetic, containing a copolymer of a long-chain alkyl (meth) acrylate and (meth)acrylic acid ester containing fluoroalkyl group linked thereto readily soluble in a volatile solvent for the cosmetic without irritancy to the skin and having good lasting makeup. CONSTITUTION:A cosmetic containing one or two or more of copolymers obtained by copolymerizing a long-chain alkyl (meth)acrylate prepared by esterifying an alcohol having >=8C alkyl group with (meth)acrylic acid, etc. and a methacrylic or acrylic acid ester having a fluoroalkyl group, e.g. >=4C perfluoroalkyl group or polyfluoroalkyl group, linked thereto, preferably at 10:1-1:5 weight ratio, particularly 7:1-1:1 weight ratio as a film-forming component. The cosmetic has resistance to water, oil and further physical friction due to the film-forming property thereof.
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