36.
    发明专利
    未知

    公开(公告)号:DE50212289D1

    公开(公告)日:2008-07-03

    申请号:DE50212289

    申请日:2002-11-20

    Abstract: Layer comprises an aqueous dispersion containing a silicon-titanium mixed oxide powder applied to a substrate. Independent claims are also included for the following: (a) a process for the production of the layer comprising applying an aqueous dispersion containing a silicon-titanium mixed oxide powder to a substrate, and sintering by thermal treatment; and (b) a dispersion prepared from a silicon-titanium mixed oxide powder. Preferred Features: The layer is 100 nm to 1 mm, preferably 1-50 mu m, especially 5-15 mu m thick. The titanium dioxide content of the powder is 0.1-99.9, preferably 2-20 wt.%.

    38.
    发明专利
    未知

    公开(公告)号:AT334937T

    公开(公告)日:2006-08-15

    申请号:AT01125293

    申请日:2001-10-25

    Applicant: DEGUSSA

    Abstract: Pyrogenic oxides (A) of metals or metalloids, are doped with potassium by means of an aerosol. The base component is produced by flame oxidation or, preferably, flame hydrolysis, and is doped with 10 to 20 wt.%, preferably 1-20000 ppm potassium, supplied as a salt. (A) has BET surface area 1-1000 m /g and the width of the particle size distribution is at least 0.7. An Independent claim is also included for a process for preparing (A).

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