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公开(公告)号：AU2444902A
公开(公告)日：2002-05-15
申请号：AU2444902
申请日：2001-10-25
Applicant: KEMET ELECTRONICS CORP
Inventor： HAHN RANDOLPH S , LESSNER PHILIP M , MELODY BRIAN J , KINARD JOHN T
Abstract: An intrinsically conductive polymer is prepared with a chemical oxidative process. The polymer is prepared by first dipping or coating a substrate with an Fe(III)-containing oxidizer solution and drying. The substrate is then dipped or coated with a monomer, such as 3,4-ethylenedioxythiophene solution, and reacted to form the conductive polymer. The monomer is dissolved in a solvent in which it has a high solubility but in which the Fe(III)-containing oxidizer has low solubility. This minimizes cross-contamination of the monomer and oxidizer dipping solutions thereby making this process suitable for high volume production. Dissolving the monomer in a solvent allows control over the stoichiometric ratio of monomer to oxidizer and prevents an excess of monomer thereby facilitating the removal of any unreacted monomer by water. The substrate is then dipped in an aqueous solution of para-toluenesulfonic acid to facilitate the removal of Fe(II) byproducts by enhancing their solubility in water and then the substrate may be washed with an aqueous solution or pure water. The process produces low ESR and low leakage valve metal capacitors with conductive polymer cathodes.
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公开(公告)号：DE19925845A1
公开(公告)日：1999-12-09
申请号：DE19925845
申请日：1999-06-01
Applicant: KEMET ELECTRONICS CORP
Inventor： MELODY BRIAN J , KINARD JOHN T , LESSNER PHILIP M
Abstract: An electrolyte solution, containing glycerin and an acidic organic salt and/or inorganic salt and having an acidic pH, is new. An Independent claim is also included for anodizing a metal using the above electrolyte solution. Preferred Features: The electrolyte solution is produced by dissolving an acidic salt (especially p-toluene sulfonate) in glycerin or adding acidic and basic ionic components (especially potassium acetate and sulfuric or tartaric acid) to glycerin, followed by heating to above 150 deg C.
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公开(公告)号：SG67563A1
公开(公告)日：1999-09-21
申请号：SG1998003809
申请日：1998-09-23
Applicant: KEMET ELECTRONICS CORP
Inventor： KINARD JOHN T , MELODY BRIAN J , LESSNER PHILIP M
Abstract: An electrolytic solution comprising glycerine and dibasic potassium phosphate. The electrolytic solution has a water content of less than 1000 ppm and is prepared by mixing the glycerine and the dibasic potassium phosphate and then heating to about 150 to 180°C for about 1 to 12 hours. A method of anodizing a metal comprising forming a film on the metal with an electrolytic solution comprising glycerine and dibasic potassium phosphate. The metal is preferably a valve metal, such as tantalum, and the film is formed at a temperature of 150°C or higher.
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Patent Agency Ranking
公开(公告)号：CZ436298A3
公开(公告)日：1999-07-14
申请号：CZ436298
申请日：1998-12-29
Applicant: KEMET ELECTRONICS CORP
Inventor： LESSNER PHILIP M , KINARD JOHN T , MELODY BRIAN J
Abstract: Conductive polymers are formed with a self-regenerating oxidant system made with a reversibly reducible metal salt at amounts sufficient to polymerize a cyclic monomer through oxidation and leave a reduced metal ion, and an oxidant in an amount sufficiently small and under conditions sufficient to oxidize the reduced metal ion but avoid oxidation or degradation of the polymer. The most preferred combination of agents includes ferric nitrate and a small amount of ammonium nitrate at a pH within the range of 2 to 7.
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公开(公告)号：CZ9803446A3
公开(公告)日：1999-05-12
申请号：CZ344698
申请日：1998-10-27
Applicant: KEMET ELECTRONICS CORP
Inventor： MELODY BRIAN J , KINARD JOHN T , LESSNER PHILIP M
CPC classification number: H01G9/025 , C08G73/0266 , H01B1/128 , Y10T29/417 , Y10T29/43
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公开(公告)号：CZ344698A3
公开(公告)日：1999-05-12
申请号：CZ344698
申请日：1998-10-27
Applicant: KEMET ELECTRONICS CORP
Inventor： MELODY BRIAN J , KINARD JOHN T , LESSNER PHILIP M
Abstract: A process for forming a polymeric film comprises: (i) applying to an article a solution comprising an acid-doped polyaniline polymer dissolved in a solvent comprising N-ethyl pyrrolidone; and (ii) allowing the solvent to evaporate.
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47.发明公开ELECTRONIC COMPONENT TERMINATION AND ASSEMBLY BY MEANS OF TRANSIENT LIQUID PHASE SINTERING AND POLYMER SOLDER PASTES 有权连接和安装过渡和液相的电子元件的POLYMERLÖTPASTEN
公开(公告)号：EP2577694A4
公开(公告)日：2014-07-02
申请号：EP11787439
申请日：2011-05-26
Applicant: KEMET ELECTRONICS CORP
Inventor： MCCONNELL JOHN E , BULTITUDE JOHN , PHILLIPS REGGIE , HILL ALLEN , RENNER GARRY L , LESSNER PHILIP M , CHACKO ANTONY P , BELL JEFFREY , BROWN KEITH
CPC classification number: H01G4/2325 , B23K1/0016 , B23K1/0053 , B23K1/008 , B23K1/203 , B23K35/0227 , B23K35/3613 , B23K2201/42 , H01G4/005 , H01G4/30 , H01L2224/83825 , H01L2924/01322 , H01L2924/01327 , H01L2924/10253 , H01L2924/1461 , Y10T29/435 , H01L2924/00012 , H01L2924/00015 , H01L2924/00
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48.发明公开HIGH VOLTAGE AND HIGH EFFICIENCY POLYMER ELECTROLYTIC CAPACITORS 有权HOCHSPANNUNGS- UND HOCHLEISTUNGSPOLYMERELEKTROLYTKONDENSATOREN
公开(公告)号：EP2422350A4
公开(公告)日：2012-08-29
申请号：EP10767666
申请日：2010-04-20
Applicant: KEMET ELECTRONICS CORP
Inventor： FREEMAN YURI , QIU YONGJIAN , HUSSEY STEPHEN C , LESSNER PHILIP M
CPC classification number: H01G9/15 , H01G9/012 , H01G9/028 , H01G9/052 , H01G9/10 , H01G11/48 , H01G11/56 , Y02E60/13 , Y10T29/417 , Y10T29/43
Abstract: A capacitor, and method of making a capacitor, is provided wherein the capacitor has exceptionally high break down voltage. The capacitor has a tantalum anode with an anode wire attached there to. A dielectric film is on the tantalum anode. A conductive polymer is on the dielectric film. An anode lead is in electrical contact with the anode wire. A cathode lead is in electrical contact with the conductive polymer and the capacitor has a break down voltage of at least 60 V.
Abstract translation: 提供电容器和制造电容器的方法，其中电容器具有非常高的击穿电压。 电容器有一个钽阳极，阳极线连接在那里。 电介质膜位于钽阳极上。 导电聚合物在介电膜上。 阳极引线与阳极电线电接触。 阴极引线与导电聚合物电接触并且电容器具有至少60V的击穿电压。
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