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公开(公告)号：GB2368850A
公开(公告)日：2002-05-15
申请号：GB0203922
申请日：2000-09-12
Applicant: KEMET ELECTRONICS CORP
Inventor： MOORE KEITH L , MELODY BRIAN J , KINARD JOHN T , WHEELER DAVID A
Abstract: Metal powders are pressed into compacts more readily through the addition of a minor percentage of dimethyl sulfone binder. Dimethyl sulfone may be dry-blended with the metal powder by mixing it in the form of a powder, or it may be wet-blended by first dissolving it in a suitable solvent, then adding it to the metal powder and evaporating the solvent. Dimethyl sulfone may be almost completely removed from compacts pressed from tantalum, etc.. either by vacuum distillation or by water leaching, to leave compacts uncontaminated by the binder and suitable for further processing into capacitor anodes, etc.
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公开(公告)号：CZ20012814A3
公开(公告)日：2002-01-16
申请号：CZ20012814
申请日：2000-01-10
Applicant: KEMET ELECTRONICS CORP
Inventor： MELODY BRIAN J , KINARD JOHN T , WHEELER DAVID A
Abstract: A process for treating an impregnated electrolytic capacitor anode whereby the anode body is immersed in a liquid electrolytic solution and a voltage is applied to the anode body, whereby a current flows through and repairs flaw sites in the anode body. The liquid electrolytic solution includes an organic solvent comprising at least one of polyethylene glycol, polyethylene glycol monomethyl ether, and polyethylene glycol dimethyl ether. Alternatively, the electrolytic solution includes an organic solvent and an alkali metal phosphate salt. Preferably, the electrolytic solution contains both an alkali metal phosphate salt and an organic solvent comprising at least one of polyethylene glycol, polyethylene glycol monomethyl ether, and polyethylene glycol dimethyl ether.
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公开(公告)号：GB2363681B
公开(公告)日：2003-02-26
申请号：GB0126532
申请日：2000-05-18
Applicant: KEMET ELECTRONICS CORP
Inventor： WHEELER DAVID A , LESSNER PHILLIP M
Abstract: Capacitor elements made with a solid polymeric electrolyte show reduced leakage current when reformed at about 60-85% of formation voltage during the impregnation phase between successive layers of polymeric electrolyte.
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公开(公告)号：DE10084029T1
公开(公告)日：2002-01-03
申请号：DE10084029
申请日：2000-01-10
Applicant: KEMET ELECTRONICS CORP
Inventor： MELODY BRIAN J , KINARD JOHN T , WHEELER DAVID A
Abstract: A process for treating an impregnated electrolytic capacitor anode whereby the anode body is immersed in a liquid electrolytic solution and a voltage is applied to the anode body, whereby a current flows through and repairs flaw sites in the anode body. The liquid electrolytic solution includes an organic solvent comprising at least one of polyethylene glycol, polyethylene glycol monomethyl ether, and polyethylene glycol dimethyl ether. Alternatively, the electrolytic solution includes an organic solvent and an alkali metal phosphate salt. Preferably, the electrolytic solution contains both an alkali metal phosphate salt and an organic solvent comprising at least one of polyethylene glycol, polyethylene glycol monomethyl ether, and polyethylene glycol dimethyl ether.
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公开(公告)号：AU2604000A
公开(公告)日：2000-08-25
申请号：AU2604000
申请日：2000-01-10
Applicant: KEMET ELECTRONICS CORP
Inventor： MELODY BRIAN J , KINARD JOHN T , WHEELER DAVID A
Abstract: A process for treating an impregnated electrolytic capacitor anode whereby the anode body is immersed in a liquid electrolytic solution and a voltage is applied to the anode body, whereby a current flows through and repairs flaw sites in the anode body. The liquid electrolytic solution includes an organic solvent comprising at least one of polyethylene glycol, polyethylene glycol monomethyl ether, and polyethylene glycol dimethyl ether. Alternatively, the electrolytic solution includes an organic solvent and an alkali metal phosphate salt. Preferably, the electrolytic solution contains both an alkali metal phosphate salt and an organic solvent comprising at least one of polyethylene glycol, polyethylene glycol monomethyl ether, and polyethylene glycol dimethyl ether.
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Patent Agency Ranking
公开(公告)号：GB2418433B
公开(公告)日：2009-09-30
申请号：GB0600327
申请日：2004-06-07
Applicant: KEMET ELECTRONICS CORP
Inventor： MELODY BRIAN J , KINARD JOHN TONY , WHEELER DAVID A
Abstract: An electrolyte solution for anodizing a metal and a capacitor comprising the anodized metal. The electrolyte comprises more than about 5%, by weight, and less than about 30%, by weight, water; about 0.1 to 20%, by weight, ionogen and an aprotic polar solvent. The ionogen comprises phosphoric acid and an alkanol amine in an amount, and ratio, sufficient to maintain a pH of about 4 to about 9.
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公开(公告)号：AU2002252042A1
公开(公告)日：2002-09-24
申请号：AU2002252042
申请日：2002-03-06
Applicant: KEMET ELECTRONICS CORP
Inventor： MELODY BRIAN J , LESSNER PHILIP M , HARRINGTON ALBERT K , KINARD JOHN T , WHEELER DAVID A
Abstract: A method of anodizing an aluminum substrate comprising heating the substrate to a first temperature of 200° C. to about 380° C.; suspending the substrate into a first electrolyte and applying a first anodizing current to the first electrolyte; rinsing the substrate; heating the substrate to a second temperature of 200° C. to about 380° C.; and suspending the substrate into a second electrolyte and applying a second anodizing current to the second electrolyte, wherein the first electrolyte and second electrolyte each comprise an aqueous solution of at least one salt of alpha-hydroxy acid.
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公开(公告)号：CZ2002952A3
公开(公告)日：2002-09-11
申请号：CZ2002952
申请日：2000-09-12
Applicant: KEMET ELECTRONICS CORP
Inventor： MOORE KEITH L , MELODY BRIAN J , KINARD JOHN T , WHEELER DAVID A
Abstract: Metal powders are pressed into compacts more readily through the addition of a minor percentage of dimethyl sulfone binder. Dimethyl sulfone may be dry-blended with the metal powder by mixing it in the form of a powder, or it may be wet-blended by first dissolving it in a suitable solvent, then adding it to the metal powder and evaporating the solvent. Dimethyl sulfone may be almost completely removed from compacts pressed from tantalum, etc., either by vacuum distillation or by water leaching, to leave compacts uncontaminated by the binder and suitable for further processing into capacitor anodes, etc.
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公开(公告)号：DE10084940T1
公开(公告)日：2002-08-14
申请号：DE10084940
申请日：2000-09-12
Applicant: KEMET ELECTRONICS CORP
Inventor： MOORE KEITH L , MELODY BRIAN J , KINARD JOHN T , WHEELER DAVID A
Abstract: Metal powders are pressed into compacts more readily through the addition of a minor percentage of dimethyl sulfone binder. Dimethyl sulfone may be dry-blended with the metal powder by mixing it in the form of a powder, or it may be wet-blended by first dissolving it in a suitable solvent, then adding it to the metal powder and evaporating the solvent. Dimethyl sulfone may be almost completely removed from compacts pressed from tantalum, etc., either by vacuum distillation or by water leaching, to leave compacts uncontaminated by the binder and suitable for further processing into capacitor anodes, etc.
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公开(公告)号：AU7612800A
公开(公告)日：2001-04-30
申请号：AU7612800
申请日：2000-09-25
Applicant: KEMET ELECTRONICS CORP
Inventor： MELODY BRIAN J , KINARD JOHN T , MOORE KEITH L , WHEELER DAVID A
Abstract: Organic acid-based binders are efficiently removed from powder metallurgy compacts, such as tantalum capacitor anode bodies, by immersion in a heated aqueous alkanolamine solution followed by rinsing in warm water. This method results in lower residual carbon and oxygen levels than are found with thermal binder removal methods.
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