41.
    发明专利
    未知

    公开(公告)号:DE1644050A1

    公开(公告)日:1971-03-25

    申请号:DE1644050

    申请日:1967-01-07

    Applicant: BASF AG

    Inventor: GRASER FRITZ DR

    42.
    发明专利
    未知

    公开(公告)号:DE1619355A1

    公开(公告)日:1971-03-11

    申请号:DE1619355

    申请日:1966-12-15

    Applicant: BASF AG

    Inventor: GRASER FRITZ DR

    48.
    发明专利
    未知

    公开(公告)号:DE3429671A1

    公开(公告)日:1986-02-20

    申请号:DE3429671

    申请日:1984-08-11

    Applicant: BASF AG

    Abstract: A process for the drying of inorganic hydrogels obtained from readily hydrolyzable compounds of the elements Al, Si, Ti, B, La, Zr, Cr, Sn, Th or Mg, and organic hydrogels based on gelatine, albumin or agar agar, from CO2, to give aerogels is easy to carry out industrially, and drying can be effected at from room temperature to 90 DEG C. The resulting aerogels are transparent and have a low bulk density and low thermal conductivity. The aerogels can be used as packing materials for liquid chromatography, as catalyst carriers, as substrates for enzymes and as adsorbents.

    ELECTROPHOTOGRAPHIC RECORDING MATERIAL

    公开(公告)号:DE3260235D1

    公开(公告)日:1984-07-19

    申请号:DE3260235

    申请日:1982-03-12

    Applicant: BASF AG

    Abstract: An electrophotographic recording medium which consists essentially of an electrically conductive base and a photosemiconductive double layer which comprises a first layer containing charge carrier-producing dyes, and a second layer containing one or more compounds which are charge carrier-transporting when exposed to light, wherein the charge carrier-producing dyes are dark in color, possess substantially panchromatic absorption characteristics, and are of the general formula where R1 is propyl, 1-hydroxypropyl, 1-methoxypropyl or 1-phenylethyl, Z is p-phenylazoanilino, phenylthio or anilino, and n is 0-6, and a process for the production of this electrophotographic recording medium.

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