2.
    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.

    3.
    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

    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.

    7.
    发明专利
    未知

    公开(公告)号:DE3724542A1

    公开(公告)日:1989-02-02

    申请号:DE3724542

    申请日:1987-07-24

    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.

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