2.
    发明专利
    未知

    公开(公告)号:DE59709602D1

    公开(公告)日:2003-04-30

    申请号:DE59709602

    申请日:1997-07-30

    Applicant: BASF AG

    Abstract: The method uses a laser light source (1) for illuminating the sample (10), with detection of the Raman dispersed light and division into its spectral lines via a grid spectrograph (6). The intensity of at least one spectral line is measured at least 10 times per second using a photodetector (8), with fluctuation analysis, autocorrelation, or frequency analysis of the measured intensity values.

    4.
    发明专利
    未知

    公开(公告)号:DE59510310D1

    公开(公告)日:2002-09-12

    申请号:DE59510310

    申请日:1995-10-14

    Applicant: BASF AG

    Abstract: The prodn. of polyurethane (PU) foam comprises reacting (a) polyisocyanate(s); with (b) high-mol. wt. polyol(s) with at least two reactive H atoms, comprising (B1) polyoxyalkylene-polyol(s) with an OH no. of 30-500, obtd. by alkoxylating N,N'-bis(3-aminopropyl)-ethylenediamine, tripropylene-tetramine and/or tetrapropylene-pentamine with alkene oxide(s); and opt. (c) low-mol wt. chain extenders and/or crosslinkers; in the presence of (d) blowing agents. Also claimed are polyols (b1) obtd. as above.

    5.
    发明专利
    未知

    公开(公告)号:DE59605528D1

    公开(公告)日:2000-08-10

    申请号:DE59605528

    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.

    6.
    发明专利
    未知

    公开(公告)号:DE59906669D1

    公开(公告)日:2003-09-25

    申请号:DE59906669

    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.

    7.
    发明专利
    未知

    公开(公告)号:DE59812591D1

    公开(公告)日:2005-03-31

    申请号:DE59812591

    申请日:1998-10-15

    Applicant: BASF AG

    Abstract: Polyurethane synthesis composition using a polymeric emulsifier having a backbone consisting of a copolymer of 4-12C unsaturated dicarboxylic acid or anhydrides and 2-40C olefins, with polyoxyalkylene side chains derived from 2-20C oxiranes. A polyurethane (PU) synthesis composition containing, as emulsifier, a polymer (T) with (at least) a copolymer backbone (TR) derived from 4-12 carbon(C) unsaturated dicarboxylic acid(s) and/or their anhydrides (TR1) and 2-40 C olefin(s) (TR2), and having polyalkylene oxide side chain (TP) derived from 2-20 C oxirane(s) (TP1), together with at least two compounds (a) comprising at least two reactive hydrogen atoms, at least one of which is insoluble. Independent claims are also included for: (a) a process for the production of synthesis composition by contacting the components in presence of a polymer; (b) a PU synthesis composition obtained; (c) a polyurethane obtained by bringing the synthesis composition into contact with a polyisocyanate; and (d) moldings, fibers, coatings, paint, sheets and a foam made from the PU compositions.

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