2.
    发明专利
    未知

    公开(公告)号:FI923060A0

    公开(公告)日:1992-07-01

    申请号:FI923060

    申请日:1992-07-01

    Applicant: BASF AG

    Abstract: The invention relates to a miniaturisable, capacitively measuring chemical sensor system on a semiconductor basis, comprising a sensor and a reference element which are to be contacted with the electrolyte to be measured, the reference element being connected in series with the sensor, the reference element comprising a highly doped semiconductor substrate or metal/semiconductor substrate which is coated with a membrane, and the sensor comprising an insulator/semiconductor substrate which is coated with a sensitive membrane, and the sensitive membrane of the sensor being more sensitive than that of the reference element. Sensor and reference element of said sensor system can either be applied to the same chip or consist of individual components which can readily be interchanged.

    4.
    发明专利
    未知

    公开(公告)号:FI912596A0

    公开(公告)日:1991-05-30

    申请号:FI912596

    申请日:1991-05-30

    Applicant: BASF AG

    Abstract: The invention relates to a reference electrode for chemical sensors based on ion-selective field-effect transistors (CHEMFETs) in an electrolyte/insulator/semiconductor (EIS) system. The reference electrode consists essentially of an insulator/semiconductor substrate coated with polyglutamate or of a phthalocyaninato-polysiloxane polymer film which is coated with polyglutamate and mounted on an insulator/semiconductor substrate.

    5.
    发明专利
    未知

    公开(公告)号:DK407688A

    公开(公告)日:1989-01-25

    申请号:DK407688

    申请日:1988-07-21

    Applicant: BASF AG

    Abstract: Thin films which contain a defined concentration of dye per unit area and are useful as layer elements, e.g. for optical filters, are prepared by spreading an oleophilic dye which is soluble in an organic water-immiscible solvent and an organic polymer dissolved in an organic solvent as a thin film at the water/air interface and, after the solvent has evaporated, transferring said film by the Langmuir-Blodgett technique to a solid base material.

    LAYER ELEMENTS AND THEIR PRODUCTION

    公开(公告)号:CA1328786C

    公开(公告)日:1994-04-26

    申请号:CA536869

    申请日:1987-05-11

    Applicant: BASF AG

    Abstract: A layer element comprises a base having a hydrophobic surface and, applied on this, one or more solid, thin, ordered layers of defined uniform and regular structure, in particular monolayers or multilayers, having a uniform orientation of the layerforming molecules in one direction. The said layers are formed from a metallomacrocyclic polymer which is fusible and/or soluble in an organic, water-immiscible solvent and is of the general formula ¢M(Pcyc)O!n, where M is Si, Ge or Sn, (Pcyc) is a complex-forming centrosymmetric polycyclic ring system, in particular a phthalocyanine ring system having hydrophobic substituents, and n is the mean degree of polymerization and is equal to or greater than 3. The novel layer elements can advantageously be produced by the Langmuir-Blodgett technique, in which a solidlike monolayer Produced on a water surface from the metallomacrocyclic polymers is transferred to a substrate having a hydrophobic surface by immersion and withdrawal of the said substrate. The layer elements according to the invention can be used, for example, as optical filters, eg. grey filters, interference filters or polarization filters, in electrochemistry and the electrical industry, for example as electrodes, sensors, catalysts etc., as photosensitive elements for electrophotography, and for many other applications.

    9.
    发明专利
    未知

    公开(公告)号:DK164357C

    公开(公告)日:1992-11-16

    申请号:DK234787

    申请日:1987-05-08

    Applicant: BASF AG

    Abstract: This invention relates to a process, which comprises spreading a metallomacrocyclic polymer dissolved in an organic, water-immiscible solvent on a water surface, removing the solvent to form a monomolecular, uniformly oriented film of said polymer on the surface of the water, immersing a substrate in the water, and withdrawing the substrate from the water, whereby said polymer film is transferred from the water surface to the substrate.

    10.
    发明专利
    未知

    公开(公告)号:DK164357B

    公开(公告)日:1992-06-15

    申请号:DK234787

    申请日:1987-05-08

    Applicant: BASF AG

    Abstract: This invention relates to a process, which comprises spreading a metallomacrocyclic polymer dissolved in an organic, water-immiscible solvent on a water surface, removing the solvent to form a monomolecular, uniformly oriented film of said polymer on the surface of the water, immersing a substrate in the water, and withdrawing the substrate from the water, whereby said polymer film is transferred from the water surface to the substrate.

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