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    PREPARATION OF RELIEF PRINTING PLATES
    31.
    发明专利
    PREPARATION OF RELIEF PRINTING PLATES 未知

    公开(公告)号：CA1334139C

    公开(公告)日：1995-01-31

    申请号：CA598578

    申请日：1989-05-03

    Applicant: BASF AG

    Inventor： TELSER THOMAS ,  KOCH HORST ,  KURTZ KARL-RUDOLF ,  BACH HELMUT ,  WERTHER HEINZ-ULRICH

    IPC: G03F7/00 ,  G03F7/32

    Abstract: The present invention relates to an improved process for preparing a photopolymerized flexographic relief printing plate or a photoresist from a photosensitive element comprising a photopolymerizable layer consisting essentially of at least one polymer as the binder; at least one photopolymerizable monomer compatible with the binder; and one photoinitiator, by imagewise exposing the photopolymerizable layer of the element to actinic light and washing out the unexposed, non-photopolymerized parts of the layer with a developer, thereby obtaining a photopolymerized flexographic relief printing plate or a photoresist. The improvement of the process comprises: washing out the nonphotopolymerized parts of the irradiated photopolymerizable layer with the developer which consists essentially of at least one hydrogenated petroleum fraction having a flashpoint above 45.degree.C and a boiling range of from 160 to 220.degree.C, 0 to 2% by weight, based on the developer, of at least one surface active compound and 0 to 10% by weight, based on the developer, of a monoterpene. In a preferred embodiment the improved process makes use of a developer which contains, in addition to the abovementioned components, 5 to 20 vol. %, based on the developer, of an alcohol selected from the group consisting of alcohols with 4 to 8 carbon atoms.

    33.
    发明专利
    未知

    公开(公告)号：NO914219L

    公开(公告)日：1991-10-28

    申请号：NO914219

    申请日：1991-10-28

    Applicant: BASF AG

    Inventor： TELSER THOMAS ,  KOCH HORST ,  KURTZ KARL-RUDOLF ,  BACH HELMUT ,  WERTHER HEINZ-ULRICH

    IPC: G03F7/32 ,  G03F7/00 ,  G03F

    Abstract: The invention relates to a process for the production of relief formes. After exposing layers which can be crosslinked by photopolymerisation to actinic light through an image, the uncrosslinked portions of the layers are washed out with hydrocarbon solvents or mixtures of hydrocarbon solvents and alcohols, certain hydrogenated petroleum fractions being used as hydrocarbon solvents. The process is suitable, in particular, for the production of flexographic printing formes.

    34.
    发明专利
    未知

    公开(公告)号：NO914219D0

    公开(公告)日：1991-10-28

    申请号：NO914219

    申请日：1991-10-28

    Applicant: BASF AG

    Inventor： TELSER THOMAS ,  KOCH HORST ,  KURTZ KARL-RUDOLF ,  BACH HELMUT ,  WERTHER HEINZ-ULRICH

    IPC: G03F7/32 ,  G03F7/00 ,  G03F

    Abstract: The invention relates to a process for the production of relief formes. After exposing layers which can be crosslinked by photopolymerisation to actinic light through an image, the uncrosslinked portions of the layers are washed out with hydrocarbon solvents or mixtures of hydrocarbon solvents and alcohols, certain hydrogenated petroleum fractions being used as hydrocarbon solvents. The process is suitable, in particular, for the production of flexographic printing formes.

    35.
    发明专利
    未知

    公开(公告)号：DK178991A

    公开(公告)日：1991-10-28

    申请号：DK178991

    申请日：1991-10-28

    Applicant: BASF AG

    Inventor： TELSER THOMAS ,  KOCH HORST ,  KURTZ KARL-RUDOLF ,  BACH HELMUT ,  WERTHER HEINZ-ULRICH

    IPC: G03F20060101 ,  G03F7/30 ,  G03F7/32

    Abstract: After image-producing exposure by actinic rays of layers which can be crosslinked by photopolymerization, the uncrosslinked parts of the layers are washed out with hydrocarbon solvents or mixtures of hydrocarbon solvents and alcohols, specific hydrogenated oil fractions being used as the hydrocarbon solvents. The method is particularly suitable for the production of flexographic printing formes.

    39.
    发明专利
    未知

    公开(公告)号：FI890480A0

    公开(公告)日：1989-02-01

    申请号：FI890480

    申请日：1989-02-01

    Applicant: BASF AG

    Inventor： KURTZ KARL-RUDOLF ,  KOCH HORST ,  TELSER THOMAS ,  ZUERGER MANFRED

    IPC: G03F7/004 ,  C08F2/50 ,  G03F7/00 ,  G03F7/027 ,  G03F7/028 ,  G03F7/033 ,  G03F

    Abstract: A novel sheet-like light-sensitive recording material I with at least one photopolymerisable, relief-forming layer (A) which, relative to (A), contains a1) 20 to 99.499 % by weight of at least one polymeric binder from the group comprising random ethylene/propylene/alkadiene terpolymers of an ethylene content of from 40 to 80 % by weight and a double bond content of 2 to 20 olefinic double bonds per 1000 carbon atoms, a2) 0.001 to 10 % by weight of at least one photopolymerisation initiator, a3) 0.5 to 50 % by weight of at least one monomer which is compatible with the binder (a1) and contains at least one photopolymerisable olefinic double bond, and a4) 0 to 40 % by weight of at least one auxiliary, by means of which the property pattern is varied, and the production of novel relief plates, relief printing plates and photoresists from these novel recording materials I and novel flexographic printing plates which have been produced from the recording materials I.

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