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    PROCEDIMIENTO PARA LA FABRICACION DE FORMAS DE RELIEVE RETICULADAS MEDIANTE POLIMERIZACION
    44.
    发明专利
    PROCEDIMIENTO PARA LA FABRICACION DE FORMAS DE RELIEVE RETICULADAS MEDIANTE POLIMERIZACION 未知

    公开(公告)号：ES2021586B3

    公开(公告)日：1991-11-16

    申请号：ES86117726

    申请日：1986-12-19

    Applicant: BASF AG

    Inventor： HOFFMANN GERHARD ,  KURTZ KARL-RUDOLF

    IPC: G03F7/00 ,  G03F7/30 ,  G03F7/32

    Abstract: PROCEDIMIENTO PARA LA FABRICACION DE FORMAS DE RELIEVE RETICULADAS MEDIANTE POLIMERIZACION: EXPOSICION GRAFICA CON LUZ ACTINICA DE UNAS CAPAS QUE PUEDEN SER RETICULADAS MEDIANTE FOTOPOLIMERIZACION Y LAVADO DE LAS PARTES NO RETICULADAS DE ESTAS CAPAS CON DISOLVENTES REVELADORES. SE UTILIZAN DISOLVENTES REVELADORES CUYOS COMPONENTES BASICOS SON: HIDROCARBUROS, ALCOHOLES O CETONAS (CON 8 - 15 ATOMOS DE CARBONO), CICLICOS Y ALIFATICOS, NO SATURADOS SIMPLE O TRIPLE OLEFINICAMENTE Y RAMIFICADOS O NO RAMIFICADOS, O LAS MISMAS SUSTANCIAS RAMIFICADAS O NO RAMIFICADAS, NO SATURADAS O SATURADAS SIMPLE O TRIPLE OLEFINICAMENTE Y ACICLICAS.

    46.
    发明专利
    未知

    公开(公告)号：DK160339C

    公开(公告)日：1991-07-29

    申请号：DK124282

    申请日：1982-03-19

    Applicant: BASF AG

    Inventor： HOFFMANN GERHARD ,  NEUMANN PETER

    IPC: C07D209/46 ,  C07D209/50 ,  G03G5/06

    Abstract: An electrophotographic recording medium which consists essentially of an electrically conductive base and a photosemiconductive double layer which comprises a first layer containing charge carrier-producing dyes, and a second layer containing one or more compounds which are charge carrier-transporting when exposed to light, wherein the charge carrier-producing dyes are those of the general formula (I) where R1, R2, R3 and R4 are each hydrogen or a non-ionic substituent, X is the radical of a methyleneactive compound, or of an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic amine or hydrazine, and Z is hydrogen, methyl or phenyl, and the production of this recording medium.

    DYE-CONTAINING LAYER OF A PHOTOPOLYMERIZABLE MIXTURE, AND THE PRODUCTION OF RELIEF PLATES AND PRINTING PLATES
    47.
    发明专利
    DYE-CONTAINING LAYER OF A PHOTOPOLYMERIZABLE MIXTURE, AND THE PRODUCTION OF RELIEF PLATES AND PRINTING PLATES 未知

    公开(公告)号：CA1252330A

    公开(公告)日：1989-04-11

    申请号：CA443943

    申请日：1983-12-21

    Applicant: BASF AG

    Inventor： BRONSTERT BERND ,  HOFFMANN GERHARD ,  LYNCH JOHN

    IPC: G03F7/004 ,  G03F7/027 ,  G03F7/105 ,  G03C1/68

    Abstract: A layer of a photopolymerizable mixture for the production of relief plates and printing plates contain (a) one or more photopolymerizable olefinically unsaturated compounds, (b) one or more photoinitiators which, on exposure, initiate rapid photopolymerization in the layer, and (c) a combination, which on exposure does not initiate any appreciable photopolymerization in the layer and comprises (c1) a soluble acridinium, phenothiazinium, phenoxazinium or phenazinium dye and (c2) a mild reducing agent for the dye (c1). The layer gives an improved relief image (greater shadow well depths) in the production of relief plates, and is also advantageous in the production of gravure printing plates. On exposure, it undergoes a color change which facilitates evaluation of the exposed layers before development.

    WATER SOLUBLE ELASTOMERIC GRAFT COPOLYMER BINDERS IN PHOTOSENSITIVE LAYER FOR RELIEF PLATES
    48.
    发明专利
    WATER SOLUBLE ELASTOMERIC GRAFT COPOLYMER BINDERS IN PHOTOSENSITIVE LAYER FOR RELIEF PLATES 未知

    公开(公告)号：AU6553586A

    公开(公告)日：1987-05-28

    申请号：AU6553586

    申请日：1986-11-20

    Applicant: BASF AG

    Inventor： HOFFMANN GERHARD ,  KOCH HORTS ,  SCHULZ GUENTHER

    IPC: G03F7/032 ,  C08G65/32 ,  G03F7/00 ,  G03F7/033 ,  G03C1/68 ,  G03C1/71 ,  G03F7/02

    Abstract: The invention relates to a novel photosensitive recording material which can be developed in aqueous solvents after its imagewise irradiation with actinic light and which consists essentially of a dimensionally stable base (A) and of a photosensitive recording layer (B). The said photosensitive recording layer (B) contains from about 48 to about 85% by weight, based on the photosensitive recording layer (B) of one or more elastomeric graft copolymers (B1) which are selected from the group consisting of polyalkylene oxide - vinyl ester - graft copolymers whose vinyl ester structural units have been hydrolyzed to a degree of not less 50 mol.-% from about 0.01 to about 10% by weight, based on the photosensitive recording layer (B), of one or more photoinitiators (B2), and from about 5 to about 30% by weight, based on the photosensitive recording layer (B), of one or more photopolymerizable monomers (B3). In addition to these components, the photosensitive recording layer (B) might contain further assistants or additives. The novel photosensitive recording material is especially well suited for the production of lithographic printing plates, resists and relief plates, in particular relief printing plates. The invention is furthermore related to a process for preparing the novel photosensitive recording material by polymerizing vinylesters in the presence of polyalkylene oxides to yield polyalkylene oxide - vinylester - graft copolymers, hydrolyzing or transesterifying said polyalkylene oxide - vinylester - graft copolymers to yield the said elastomeric graft copolymer (B1), mixing the said elastomeric graft copolymers (B1) with the other components of the photosensitive recording layer (B), and forming the said photosensitive recording layer (B) from the mixture consisting of its components on the dimensionally stable base (A).

    49.
    发明专利
    未知

    公开(公告)号：NO870012D0

    公开(公告)日：1987-01-02

    申请号：NO870012

    申请日：1987-01-02

    Applicant: BASF AG

    Inventor： HOFFMANN GERHARD ,  KURTZ KARL-RUDOLF

    IPC: G03F7/00 ,  G03F7/30 ,  G03F7/32

    Abstract: Relief plates crosslinked by photopolymerization are produced by exposing layers which are crosslinkable by photopolymerization imagewise to actinic light and washing out the noncrosslinked parts of the layers with a developer, by a process in which the developer used contains, as an essential component, a branched or straight-chain, monoolefinically, diolefinically or triolefinically unsaturated acryclic or saturated or monoolefinically, diolefinically or triolefinically unsaturated cyclic aliphatic hydrocarbon, alcohol or ketone of 8 to 15 carbon atoms.

    50.
    发明专利
    未知

    公开(公告)号：DK1187D0

    公开(公告)日：1987-01-02

    申请号：DK1187

    申请日：1987-01-02

    Applicant: BASF AG

    Inventor： HOFFMANN GERHARD ,  KURTZ KARL-RUDOLF

    IPC: G03F7/00 ,  G03F7/30 ,  G03F7/32 ,  G03C1/68

    Abstract: Relief plates crosslinked by photopolymerization are produced by exposing layers which are crosslinkable by photopolymerization imagewise to actinic light and washing out the noncrosslinked parts of the layers with a developer, by a process in which the developer used contains, as an essential component, a branched or straight-chain, monoolefinically, diolefinically or triolefinically unsaturated acryclic or saturated or monoolefinically, diolefinically or triolefinically unsaturated cyclic aliphatic hydrocarbon, alcohol or ketone of 8 to 15 carbon atoms.

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