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    Photomechanical production of printing plates
    8.
    发明专利
    Photomechanical production of printing plates 未知

    公开(公告)号：GB1147776A

    公开(公告)日：1969-04-10

    申请号：GB3475966

    申请日：1966-08-03

    Applicant: BASF AG

    Inventor： WILHELM HANS ,  HENKLER HERBERT ,  FLOSS JOSEF GEORG

    IPC: C08G69/48 ,  C08L77/00 ,  G03F7/037

    Abstract: 1,147,776. Photographic processes. BADISCHE ANILIN - & SODA - FABRIK A. G. Aug. 3, 1966 [Aug. 4, 1965], No.34759/66. Heading G2C. Printing plates are produced by imagewise exposing a material containing 40-99% by weight of a polyamide and 60-1% of a compound containing at least one photo-polymerizable double bond and at least one hydrogen capable of reacting with an isocyanate, treating the exposed material with a polyisocyanate and then removing the unexposed areas. Specified compounds are acrylamides and methacrylamides, partial esters of glycols with acrylic or methacrylic acid and hydroxy- or aminostyrenes. The polyisocyanate may be hexamethylene-, p-phenylene, 2, 5 or 2, 6-toluene -, or 1 5-naphthalene-di-isocyanate, 4, 4', 4" triphenylmethane tri-isocyanate or tri-methylolpropane/2, 4-toluene di-isocyanate addition product. The material may also contain a thermal polymerization inhibitor and photo-initiator.

    Electrochemical hydrodimerization of acrylonitrile
    9.
    发明专利
    Electrochemical hydrodimerization of acrylonitrile 未知

    公开(公告)号：GB1137544A

    公开(公告)日：1968-12-27

    申请号：GB1613366

    申请日：1966-04-13

    Applicant: BASF AG

    Inventor： GUTHKE HARALD ,  WINTERSBERGER KARL ,  BECK FRITZE ,  FLOSS JOSEF GEORG ,  HABERMANN WOLFGANG

    IPC: C25B3/29

    Abstract: 1,137,544. Electrolytic hydrodimerization of acrylonitrile. BADISCHE ANILIN- & SODA FABRIK A.G. 13 April, 1966 [14 April, 1965], No. 16133/66. Heading C2C. [Also in Division C7] Adiponitrile is produced electrolytically by hydrodimerizing acrylonitrile as catholyte in a cell wherein the anolyte and catholyte are separated by a solid polyelectrolyte which directly covers either or both of the opposed faces of the two electrodes, or joins together the anode and cathode, leaving no interspace between the electrode and polyelectrolyte, the or each covered electrode being permeable to the anolyte and/or catholyte. The catholyte or anloyte may contain a conducting salt solution or water; an acid and/or a base may be added to the anolyte. The polyelectrolyte may be a copolymer layer, e.g. of (dimethyl) styrene and divinylbenzene, phenyl-formaldehyde resins or vinyl chloride containing sulphonic or carboxylic or arsenic acid, phosphonium, ammonium, phosphine, hydroxyl or amino groups; or particles of inorganic ion exchanger, e.g. hydrated zirconium oxides, glauconite, zeolite (hydroxy) apatite, distributed in a binder, e.g. polystyrene, polybutadiene, polyisoprene or cement. The anode may be a porous sintered graphite tube surrounded first by the copolymer layer then by the cathode, e.g. of amalgamated silver netting, the catholyte being acrylonitrile and tetraethyl ammonium p-toluene-sulphonate solution, and the anolyte pure water. The anode may also be of a platinum group metal, lead, lead dioxide, sintered nickel, nickel coated with nickel sulphide or arsenide, or magnetite, and may be vibrated; the cathode may also be of lead, lead amalgams or alloys.

    Photomechanical production of printing plates
    10.
    发明专利
    Photomechanical production of printing plates 未知

    公开(公告)号：GB1148328A

    公开(公告)日：1969-04-10

    申请号：GB3301266

    申请日：1966-07-22

    Applicant: BASF AG

    Inventor： WILHELM HANS ,  HENKLER HERBERT ,  FLOSS JOSEF GEORG ,  GEHM ROBERT

    IPC: G03F7/037

    Abstract: 1,148,328. Photo-polymerization process. BADISCHE ANILIN- & SODA-FABRIK A.G. 22 July, 1966 [23 July, 1965], No. 33012/66. Heading C3P. [Also in Division G2] A photographic process for the production of printing plates comprises image-wise exposing a photo-polymerizable material in the form of a plate or sheet and containing 80 to 40% by weight of a synthetic linear polyamide, 0À5 to 15% by weight based on the polyamide of benzene-sulphonic acid n-butylamide, 20-60% by weight of monomer(s) containing at least one monomer having at least two polymerizable double bonds and optionally at least one monomer with a single double bond, the single double-bond monomer content being up to 40% of the total monomer content, and a photo-initiator (e.g. benzoin methyl ether) and then developing the exposed material. A polymerization inhibitor may also be present in the composition of the layer. Exemplified monomers with at least two double bonds are alkylene and arylene bisacrylamides; 4,4 1 -bis-(acryloylamino cyclohexyl)-methane and triallyl cyanurate, while styrene, maleic anhydride, methyl methacrylate and butane diol-(1,4)-monoacrylate are exemplified as monomers with single double bonds.

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