28.
    发明专利
    未知

    公开(公告)号:DK1016454T3

    公开(公告)日:2003-12-08

    申请号:DK99125902

    申请日:1999-12-22

    Applicant: BASF AG

    Abstract: Preparation of stable fine particle powders comprises: (a) dissolving one or more substances (A) and one or more substances (B) in a super-critical, compressible fluid; and (b) relaxing the fluid along a residence path, where the solubility limit of (A) is earlier than that of (B) in the residence path. An Independent claim is included for an apparatus for carrying out the process comprising a first high pressure autoclave (2) for dissolving substance (A) in a super critical fluid and a second high pressure autoclave for dissolving substance (B) in a super critical fluid. Two separate feeds (3, 7) connected to relaxation devices (4, 8) relax both fluids so that their flows intersect.

    29.
    发明专利
    未知

    公开(公告)号:ES2148603T3

    公开(公告)日:2000-10-16

    申请号:ES96101636

    申请日:1996-02-06

    Applicant: BASF AG

    Abstract: The method for chemically differential imaging using a scanning force microscope uses chemically modified samples, where the imaging is in normal force, elasticity or tapping/non-contact mode. A detector (1), laser source (2), piezoelectric adjuster (3), tip and lever arm (4) are used to evaluate the sample (5). The scanning tip is either a metal or oxide layer, or it may be coated with one or more substances, such as thiol groups with additional acid or base functions, thiol with nuclein base, disulphide with acid base or nuclein base.

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