Preset electrolytic capacitor
    16.
    发明专利

    公开(公告)号:CZ20011182A3

    公开(公告)日:2001-10-17

    申请号:CZ20011182

    申请日:1999-09-29

    Abstract: The adhesion of a conductive polymer film to an oxidized porous pellet anode is improved by the incorporation of a silane coupling agent in the polymer impregnating solution. The incorporation of the silane coupling agent also decreases leakage current and dissipation factor. Suitable silanes are those of the general formula (R1-R3)-Si-(OR2)3. Each of R2 and R3 is a C1-C6 alkyl group such as methyl, ethyl, or propyl. R1 can be chosen from a wide variety of organic functional groups such as epoxy, glycidoxy, amino, and pyrrole. The most preferred silane is 3-glycidoxypropyltrimethoxysilane.

    20.
    发明专利
    未知

    公开(公告)号:DE69821181D1

    公开(公告)日:2004-02-26

    申请号:DE69821181

    申请日:1998-09-18

    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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