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    3.
    发明专利
    未知

    公开(公告)号：FI922786A

    公开(公告)日：1992-06-16

    申请号：FI922786

    申请日：1992-06-16

    Applicant: HOECHST AG

    Inventor： HAUBS MICHAEL ,  PRASS WERNER

    IPC: B01D53/22 ,  B01D69/12 ,  B32B7/02 ,  C01B13/02 ,  B01D

    Abstract: PCT No. PCT/EP90/02021 Sec. 371 Date Jul. 2, 1992 Sec. 102(e) Date Jul. 2, 1992 PCT Filed Nov. 26, 1990 PCT Pub. No. WO91/09669 PCT Pub. Date Jul. 11, 1991.Composite membrane, process for its production and its use A composite membrane for gas separation having a three-layer structure, constructed from A) a supporting membrane layer made of porous polymer, B) a nonporous, gas-permeable intermediate layer, C) a permselective layer of regularly arranged organic molecules having a layer thickness of 3 to 100 nm, the layers (A) and (C) enclosing the intermediate layer (B), wherein the permselective layer (C) is constructed from regularly arranged amphiphilic molecules which contain one or two alkyl chains each having 7 to 25 carbon atoms per polar hydrophilic group.

    Measuring system for the determination of the concentration of inorganic and organic compounds in a sample
    8.
    发明专利
    Measuring system for the determination of the concentration of inorganic and organic compounds in a sample 未知

    公开(公告)号：AU655519B2

    公开(公告)日：1994-12-22

    申请号：AU2991892

    申请日：1992-12-04

    Applicant: HOECHST AG

    Inventor： ZIMMERMANN ANDREAS ,  BARGON JOACHIM ,  STEHLIN THOMAS ,  PRASS WERNER ,  GROH WERNER

    IPC: G01N21/78 ,  C09K11/06 ,  G01N21/64

    Abstract: Measuring device for the determination of the concentrations of inorganic and organic compounds in a sample, with a sensor which is to be brought into contact with the sample and which contains a fluorescence-optical indicator which after excitation via an excitation light source fluoresces as a function of the present concentration of the inorganic or organic compound to be detected. The measuring device has an arrangement for measuring and analyzing the incident radiation and the re-emitted fluorescence light. The measuring device contains a sensor element which is to be brought into contact with the sample and consists of a polymer matrix which is prepared from a) a matrix component which is derived from one or more units of the formula I where R - is hydrogen, deuterium or methyl; R - and R -, independently of one another, are hydrogen, deuterium or methyl, and the degree of polymerization, n is an integer in the range from 80 to 2500, preferably from 200 to 2000; b) a dye component which is immobilized covalently on the acyl chloride groups of the matrix component and c) one or more swelling components which are bound covalently to the remaining free acyl chloride groups of the matrix component.

    9.
    发明专利
    未知

    公开(公告)号：FI933628A0

    公开(公告)日：1993-08-17

    申请号：FI933628

    申请日：1993-08-17

    Applicant: HOECHST AG

    Inventor： APPEL GUNTHER ,  BAUER JACQUELINE ,  HICKEL WERNER ,  LUPO DONALD ,  PRASS WERNER ,  SCHEUNEMANN UDE

    IPC: B05C3/09 ,  B05C3/132 ,  B05D1/20

    Abstract: For the continuous production of an ultra-thin, ordered layer of amphiphilic molecules on the surface of a polar liquid, an aligned flow of the polar liquid is generated in a channel, which polar liquid contains the amphiphilic molecules, dissolved or undissolved, on the surface in spread form. In the channel, a channel section with relatively high flow rate at the surface is provided, which section has a ramp which is arranged on the channel bottom and over which the polar liquid flows. Following this there is a channel section with a relatively low flow rate at the surface, in which channel section the flow is dammed at an obstruction with the liquid level constant over time, so that an ultra-thin, ordered layer of amphiphilic molecules continuously forms, as a result of flow compression, at the polar liquid/air phase boundary in these channel sections. The ramp over which the liquid flows is arranged so as to be movable.

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