12.
    发明专利
    未知

    公开(公告)号:DE3710146A1

    公开(公告)日:1988-10-13

    申请号:DE3710146

    申请日:1987-03-31

    Applicant: BASF AG

    Abstract: The invention relates to a method for closing and/or sealing apertures, cavities or interstices which are formed when printing plates are affixed to form cylinders, by means of a packing or sealing substance, which is viscous/plastic and pasty at room temperature and is based on a dispersion of a powdered, solid, highly fluorinated olefin polymer in an inert, non-volatile organic fluid.

    16.
    发明专利
    未知

    公开(公告)号:DE3864283D1

    公开(公告)日:1991-09-26

    申请号:DE3864283

    申请日:1988-02-06

    Applicant: BASF AG

    Abstract: Seamless and firm bonding of the ends and/or sides of thermoplastic light-sensitive films, using heat and pressure, is carried out by overlapping the ends and/or sides of unsupported, solvent-free film(s) and eliminating air to avoid bubbles, heating the lapped areas under pressure and after-treating and smoothing the bonded film, with accurate shaping.

    17.
    发明专利
    未知

    公开(公告)号:DE3862314D1

    公开(公告)日:1991-05-16

    申请号:DE3862314

    申请日:1988-02-06

    Applicant: BASF AG

    Abstract: For coating printing cylinders or sleeves with a seamless, smooth photosensitive layer, two or more strata of a thin, prefabricated, essentially solvent-free, unsupported, thermoplastically processible, solid, photosensitive layer are applied to the printing cylinder or the sleeve, without bubbles and with displacement of the air between the individual strata, and the total photosensitive layer material is then heated under pressure and with joining or fusion of the individual strata to form a single, continuous photosensitive layer, and the surface of the resulting photosensitive layer is aftertreated to shape it exactly to size and is smoothed, with formation of an exactly cylindrical shape.

    18.
    发明专利
    未知

    公开(公告)号:DE3736180A1

    公开(公告)日:1989-05-03

    申请号:DE3736180

    申请日:1987-10-26

    Applicant: BASF AG

    Abstract: A process for sealing cavities or interstices which are formed on fixing printing plates to a cylinder. The process employs a pasty, light-curable sealing compound composed of at least one photopolymerisable, ethylenically unsaturated low-molecular-weight compound (a), at least one polymeric binder (b) which is compatible with the photopolymerisable low-molecular-weight compounds of the component (a), at least one photopolymerisation initiator (c) and at least one finely divided oxidic filler (d) which, when mixed with the components (a) to (c), yields mixtures which are transparent to long wave UV light. Said sealing compound is cured after being applied by exposure to light and can be finally processed mechanically.

Patent Agency Ranking