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    23.
    发明专利
    未知

    公开(公告)号：FI901327A0

    公开(公告)日：1990-03-16

    申请号：FI901327

    申请日：1990-03-16

    Applicant: BASF AG

    Inventor： WEGNER GERHARD ,  CASERI WALTER ,  SAUER THOMAS

    IPC: G02B5/30 ,  C08G77/48 ,  C08G77/50 ,  C08G77/58 ,  C08J5/18 ,  C09B69/10 ,  G02B1/04 ,  G02B1/10 ,  H01J61/35 ,  C08G

    Abstract: Novel polymers contain phthalocyanine ring systems bonded via axial bonds to a central metal atom in the polymer chain and consist of repeating units of the general formula (I) (I) In the general formula (I), Pcs is a phthalocyanine ring system having peripheral substituents, Me is the central atom of the phthalocyanine ring system, which atom is bonded in the polymer main chain, suitable central metal atoms Me being silicon and germanium, R is alkylene, R' and R'' are each alkyl, cycloalkyl, aryl or alkoxy and Z is a silicon-carbon bond or further Si-containing groups. The novel polymers can be particularly advantageously used for the production of ultrathin layers by the LB technique, optically transparent films having high optical anisotropy and a high volume concentration of phthalocyanine radicals being formed.

    PRODUCTION OF THIN FILMS
    29.
    发明专利
    PRODUCTION OF THIN FILMS 未知

    公开(公告)号：CA1338082C

    公开(公告)日：1996-02-27

    申请号：CA572792

    申请日：1988-07-22

    Applicant: BASF AG

    Inventor： WEGNER GERHARD ,  SCHOUTEN AREND JAN ,  DUDA GISELA ,  ARNDT THOMAS

    IPC: B29C41/12 ,  B05C3/00 ,  B05D1/20 ,  B32B27/00 ,  C08J5/18

    Abstract: Thin films are produced by a process in which organic polymers having long-chain side groups are dissolved in an organic solvent, the solution is spread at the water/air interface by the LangmuirBlodgett technique and the film is transferred onto a solid base material after evaporation of the organic solvent, and the organic polymers used are those which contain longchain n-alkyl side groups bonded to the main chain of the polymer via polar groups, and some of these long-chain nalkyl side groups are replaced by shorter-chain n-alkyl side groups, by branched alkyl side groups having the same or a smaller number of carbon atoms or by equally long or shorter side groups having one or more C-C multiple bonds. This process can be used to produce film elements, for example for optical filters.

    30.
    发明专利
    未知

    公开(公告)号：FI923060A

    公开(公告)日：1993-01-07

    申请号：FI923060

    申请日：1992-07-01

    Applicant: BASF AG

    Inventor： SCHREPP WOLFGANG ,  FUCHS HARALD ,  HOFFMANN BERND F W ,  ERBACH RAINER ,  WEGNER GERHARD ,  SCHAUB MATTHIAS

    IPC: G01N27/414 ,  G01N27/22 ,  G01N27/333

    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.

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