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公开(公告)号：JPH0494107A
公开(公告)日：1992-03-26
申请号：JP21192690
申请日：1990-08-09
Applicant: KAO CORP
Inventor： SATO MASAHARU , IMANISHI KUNIHIKO , YASUDA YUTAKA
Abstract: PURPOSE:To improve high frequency characteristics and attainment of capacity by specifying a molecular weight of transition metallic salt of organic acid which is introduced for formation of solid electrolyte. CONSTITUTION:A surface of a metal (Al) foil 1 which becomes an anode is etched and a micro bore is formed to enlarge a surface area thereof. After a dielectric thin film 2 of metallic oxide (Al2O3) is formed along a wallside of the bore on the surface, a layer 3 of solid-state electrolyte which is formed by oxidation polymerization of aromatic compound is formed on a surface of the dielectric thin film 2 to get deep into the bore. An electrode 5 of a metal (Ag paste) which becomes a cathode is attached to the other side of the layer 3 of solid electrolyte. A graphite layer 4 is used between the electrode 5 and the layer 3 of solid electrolyte, and electrode leads 6 and 7 are attached. Use of transition metallic salt of a molecular weight of 600 or more as oxidizer enables uniform coating of oxidizer on the dielectric and formation of a conductive polymer all over a surface of the dielectric.
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公开(公告)号：JPH03123013A
公开(公告)日：1991-05-24
申请号：JP26179689
申请日：1989-10-05
Applicant: KAO CORP
Inventor： TANAKA YUKIOMI , SATO MASAHARU , IMANISHI KUNIHIKO , YASUDA YUTAKA
Abstract: PURPOSE:To contrive improvement in long-term stability of the title capacitor by a method wherein a conductive layer is formed by dry-hardening conductive paste of dry-hardening type, and packaging resin is formed by thermally setting epoxy resin using an acid-anhydride or imidazol compound as a hardening agent. CONSTITUTION:In the title solid electrolytic capacitor, a conductive layer 4 is formed by dry-hardening conductive paste of dry-hardening type, and packaging resin 5 is formed by heat-hardening epoxy resin using an acid anhydride or imidazol compound as a hardening agent. Polyolefin, polyester, polyamide and the like are named as the binder resin of the dry-hardening conductive paste used for the above-mentioned conductive layer 4. Also, as the acid anhydride to be used as the hardening agent of epoxy resin, an aromatic acid anhydride and aliphatic acid anhydride can be named. 2-methylimidazol, 2-ethyl-4- methylimidazol and the like are named as an imidazol compound. As a result, the title electrolytic capacitor, having excellent long-term stability and weatherability, can be obtained.
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公开(公告)号：JPH0346214A
公开(公告)日：1991-02-27
申请号：JP18181389
申请日：1989-07-14
Applicant: KAO CORP
Inventor： SATO MASAHARU , TANAKA YUKIOMI , IMANISHI KUNIHIKO , YASUDA YUTAKA
Abstract: PURPOSE:To obtain a solid electrolytic capacitor having both excellent high frequency characteristics and low leakage current by a method wherein the introduction of the mixture of an oxidizing agent and an aromatic compound is conducted at the temperature of -30 deg.C or lower, then temperature is raised, and the aromatic compound is oxidatively polymerized at the temperature of -20 deg.C or higher. CONSTITUTION:As the mixing of an oxidizing agent and an aromatic compound and the introduction of said mixture are conducted at the temperature of -30 deg.C or lower, the above-mentioned mixture can be introduced sufficiently into the internal part of the fine holes of a porous dielectric in a substantially unreacted state. Then, the temperature is raised to -20 deg.C or higher, and oxidative polymerization is conducted. Accordingly, a solid electrolyte, consisting of a conductive high molecular compound, is formed on the surface of the dielectric including the internal part of the fine holes, and a solid electrolytic layer, consisting of a highly conductive high molecular compound, is easily formed on the surface of the dielectric. As a result, a solid electrolytic capacitor, having both excellent high frequency characteristics and a small leakage current, can be obtained.
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公开(公告)号：JPH02288216A
公开(公告)日：1990-11-28
申请号：JP10895989
申请日：1989-04-27
Applicant: KAO CORP
Inventor： IMANISHI KUNIHIKO , SATO MASAHARU , TANAKA YUKIOMI , YASUDA YUTAKA
Abstract: PURPOSE:To obtain a solid electrolytic capacitor having excellent high-frequency characteristics by introducing an oxidizer composed of the transition metal salt of either of a fatty monocarboxylic acid compound, an aromatic monocarboxylic acid compound, etc., onto a dielectric and chemically oxidation- polymerizing the aromatic compound on the dielectric. CONSTITUTION:In the manufacture of a solid electrolytic capacitor using the oxide of a film formation metal as a dielectric and a conductive high-molecular compound as a solid electrolyte, an oxidizer consisting of the transition metal salt of either of a fatty monocarboxylic acid compound, an aromatic monocarboxylic acid compound, a fatty phosphoric acid compound and an aromatic phosphoric acid compound is introduced onto the dielectric, and the aromatic compound is chemically oxidation-polymerized on the dielectric and the solid electrolyte is formed. Various methods can be utilized regarding the method of chemical oxidation polymerization. A method in which a porous molded form into which the oxidizer is introduced is exposed in an aromatic compound atmosphere and polymerization is conducted, a method in which the porous molded form is dipped into an aromatic compound solution or the like is cited.
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公开(公告)号：JPH02224314A
公开(公告)日：1990-09-06
申请号：JP4616689
申请日：1989-02-27
Applicant: KAO CORP
Inventor： SATO MASAHARU , TANAKA MASAOMI , IMANISHI KUNIHIKO , YASUDA YUTAKA
Abstract: PURPOSE:To obtain a solid electrolytic capacitor of large capacitance having excellent characteristics to a high frequency region and also having excellent reliability by a method wherein a work electrode, which is provided in the vicinity of or making contact with the porous molded body of a film-forming metal having an oxide film, is used in an electrolyte containing monomer to be used for electrolytic polymerization. CONSTITUTION:A work electrode 2 is provided in the vicinity of or making contact with a porous molded body 1 of a film-forming metal having an oxide film. This work electrode 2 functions as the starting point of the electrolytic polymerization in which the conductive high molecular compound, as a solid electrolyte, is formed on the porous molded body 1, polymerization is accelerated easily, and the conductive high molecular compound is formed in such a manner that the fine holes are fully filled up with the conductive high molecular compound from the surface of the porous molded body 1. Consequently, as solid electrolyte having sufficiently high conductivity is filled up in the fine holes of the porous molded body 1, equivalent series resistance is made small, resonance frequency is increased to 1MHz or higher, excellent characteristics are shown as far as to the high frequency region, and a large capacitance solid electrolytic capacitor, having a large maximum allowable current and a small leakage current, can be obtained.
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Patent Agency Ranking
公开(公告)号：JPH01277270A
公开(公告)日：1989-11-07
申请号：JP10617588
申请日：1988-04-28
Applicant: KAO CORP
Inventor： SATO MASAHARU , IMANISHI KUNIHIKO , YASUDA YUTAKA
IPC: G03G15/20
Abstract: PURPOSE:To improve heat resistance, etc., by providing a surface layer consisting of an electron conjugate aromatic polymer. CONSTITUTION:The title heat roll is provided with the surface layer consisting of the electron conjugate aromatic polymer. The electron conjugate aromatic polymer is an organic aromatic polymer, and is regulated to the one having molecular structure realizing the conjugation of an electron extending over the entire of a molecular chain or the large part of the molecular chain, and especially, it is desirable to use the electron conjugate aromatic polymer having thermal diffusivity >=0.01cm/sec at a temperature 20 deg.. As such electron conjugate aromatic polymer; polypyrrole, polythiophen, polyfuran, polyparaphenylene and polyparapheninvinyle, and derivatives for them are superior in the points of stability and strength, therefore, they are selected desirably. In such a way, it is possible to obtain satisfactory heat resistance, chemical resistance, and mechanical strength.
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公开(公告)号：JPS63241022A
公开(公告)日：1988-10-06
申请号：JP7344887
申请日：1987-03-27
Applicant: KAO CORP
Inventor： SATO MASAHARU , YAMAZAKI HARUMASA
Abstract: PURPOSE:To form easily and simply the title film excellent in surface smoothness, high in purity and usable in the fields of chemical engineering and electronic engineering on an anode, by subjecting an aromatic compound to anodic oxidation by using an aromatic compound of a specified concentration in the electrolyte. CONSTITUTION:An aromatic compound (e.g., benzene) is subjected to electrochemical anodic oxidation in a concentration in the electrolyte of 20wt.% or higher. An aromatic conjugated polymer film having excellent surface smoothness and high purity can be obtained easily and simply, and this film can be suitably used in the fields of chemical engineering and electronic engineering.
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公开(公告)号：JPS63230381A
公开(公告)日：1988-09-26
申请号：JP6325087
申请日：1987-03-18
Applicant: KAO CORP
Inventor： SATO MASAHARU , YAMAZAKI HARUMASA , YAMAGUCHI SHINICHIRO
IPC: B41J31/00
Abstract: PURPOSE:To obtain excellent heat resistance and facilitate the production of the title ink film, by adopting an electronically conjugated aromatic polymer for forming a heat generating layer. CONSTITUTION:An electronically conjugated aromatic polymer is used for forming a heat generating layer. The electronically conjugated aromatic polymer has such a structure that conjugation of electrons can be achieved over the entire part or a major part of the molecular chain thereof, and may be, for example, polypyrrole, polythiophene, polyfuran, poly-p-phenylene, poly-p- phenylenevinylene or a derivative thereof obtained by polymerization of pyrrole, thiophene, furan, benzene or a derivative thereof. The electronically conjugated aromatic polymer has extremely favorable heat resistance, and enables printing at high temperatures, which makes it possible to lower the viscosity of an ink or raise the sublimation rate at the time of transferring, and therefore to enhance the printing speed. In addition, a base supporting the polymer can be inserted between a conductor layer and an ink layer, whereby the production process is facilitated.
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公开(公告)号：JPS63137925A
公开(公告)日：1988-06-09
申请号：JP28366386
申请日：1986-11-28
Applicant: KAO CORP
Inventor： SATO MASAHARU , YAMAZAKI HARUMASA
Abstract: PURPOSE:To obtain the titled film having a particularly improved strength, electric conductivity, etc., and suitable for the field of electronic engineering, etc., by drawing or rolling a polythiophene film synthesized by an electrolytic oxidative polymerization method of thiophene (derivative) in a specific electrolytic solution. CONSTITUTION:Thiophene (derivative) in an electrolytic solution in >=0.1mol/l electrolytic concentration is subjected to electrochemical and anodic oxidative polymerization to give a polythiophene film (preferably having
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公开(公告)号：JPS6399225A
公开(公告)日：1988-04-30
申请号：JP24500686
申请日：1986-10-15
Applicant: KAO CORP
Inventor： SATO MASAHARU , YAMAZAKI HARUMASA
Abstract: PURPOSE:To obtain the titled substrate, consisting of an organic high polymer film with a specific value or above of thermal diffusivity, having excellent heat radiation properties and capable of improving reliability of electronic parts as well as electronic devices. CONSTITUTION:A substrate consisting of an organic high polymer film having >=0.01cm /sec, preferably >=0.015cm /sec thermal diffusivity at 20 deg.C, preferably electron conjugated high polymer film, e.g. polypyrrole, polythiophene, polyfuran, poly-p-phenylene, poly-p-phenylenevinylene, polyanthracene, etc.
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