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    PRODUCTION OF THIN FILMS
    5.
    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.

    7.
    发明专利
    未知

    公开(公告)号：DK407688D0

    公开(公告)日：1988-07-21

    申请号：DK407688

    申请日：1988-07-21

    Applicant: BASF AG

    Inventor： WEGNER GERHARD ,  DUDA GISELA ,  BUBECK CHRISTOPH ,  SCHOUTEN AREND JAN

    IPC: C08K5/00 ,  B05D1/20 ,  C08J5/18 ,  C08L101/00 ,  C09K3/00 ,  G02B5/22 ,  B05D7/24 ,  B32B17/06

    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.

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