EP0114973B1 - Wasserfester fotografischer Papierträger - Google Patents

Wasserfester fotografischer Papierträger Download PDF

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Publication number
EP0114973B1
EP0114973B1 EP83111927A EP83111927A EP0114973B1 EP 0114973 B1 EP0114973 B1 EP 0114973B1 EP 83111927 A EP83111927 A EP 83111927A EP 83111927 A EP83111927 A EP 83111927A EP 0114973 B1 EP0114973 B1 EP 0114973B1
Authority
EP
European Patent Office
Prior art keywords
barrier layer
layer
paper
hardened
gew
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83111927A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0114973A3 (en
EP0114973A2 (de
Inventor
Reiner Chem.-Ing. Anthonsen
Wieland Dr. Dipl.-Phys. Sack
Heinz Trentmann
Hans-Georg Wöllmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Felix Schoeller Jr Foto und Spezialpapiere GmbH
Felex Schoeller Jr and GmbH and Co KG
Original Assignee
Felix Schoeller Jr Foto und Spezialpapiere GmbH
Felex Schoeller Jr and GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Felix Schoeller Jr Foto und Spezialpapiere GmbH, Felex Schoeller Jr and GmbH and Co KG filed Critical Felix Schoeller Jr Foto und Spezialpapiere GmbH
Priority to AT83111927T priority Critical patent/ATE42838T1/de
Publication of EP0114973A2 publication Critical patent/EP0114973A2/de
Publication of EP0114973A3 publication Critical patent/EP0114973A3/de
Application granted granted Critical
Publication of EP0114973B1 publication Critical patent/EP0114973B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D21H19/822—Paper comprising more than one coating superposed two superposed coatings, both being pigmented
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper
    • G03C1/79—Macromolecular coatings or impregnations therefor, e.g. varnishes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/54—Starch
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/58—Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/60—Polyalkenylalcohols; Polyalkenylethers; Polyalkenylesters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/62—Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/84—Paper comprising more than one coating on both sides of the substrate
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/04—Physical treatment, e.g. heating, irradiating
    • D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper

Definitions

  • the invention relates to a multi-layer, waterproof photographic paper support with a particularly high surface flatness and good photographic properties, and to a method for the production thereof.
  • DE-AS 1 447 815 describes a paper support for photosensitive layers coated on both sides with polyolefin resin.
  • DE-OS 3 022 451 describes a paper support which is coated on both sides with lacquer layers hardened by electron beams.
  • DE-OS 3 022 709 finally describes a paper carrier coated with curable mixtures, in which a coating is cured in contact with a shaping surface, and which is consequently distinguished by high flatness of the surface.
  • the new waterproof lacquer coatings hardened by electron beams described in DE-OS 3 022 451 and DE-OS 3 022 709 are above all more scratch-resistant than the bis-. long common polyolefin coatings according to DE-AS 1 447 815.
  • the layer hardened by electron beams according to DE-OS 3 046 130 was covered with an additional polyolefin layer.
  • an additional polyolefin layer As a result, it was possible to ensure a storage stability of several months while almost maintaining the good surface characteristics of the support and to obtain a product that could be used under normal conditions.
  • a reduction in sharpness due to the polyolefin coverage had to be accepted.
  • the scratch sensitivity of the polyolefin surface is again disadvantageous in this embodiment.
  • the durability of the photographic material is limited by the polyolefin, which, in terms of its aging resistance, lags far behind the classic photo supports with baryta layers.
  • the paper backing consists of a fully glued base paper, which is coated with a radiation-hardened lacquer layer. At least one barrier layer is arranged between the paper and the lacquer layer.
  • the base paper preferably consists of fiber pulp or synthetic fibers or other constituents, also in a mixture, it is hydrophobized and equipped with other customary glues and strengthening agents.
  • the barrier layer which is described in detail below, lies on the base paper.
  • the permeability of the barrier layer for acrylate monomer is such that when testing with the Hercules sizing tester more than 100 seconds are required until the remission has dropped to 70%.
  • the permeability for an acrylate monomer does not fall below the stated value of 100 seconds and that the layer contains only minimal amounts of free wetting agent, preferably no free wetting agent.
  • the barrier layer consists of a polyolefin film which has been applied by extrusion coating.
  • the thickness of the layer in this case is 5-30 11 m, preferably 7-20 11 m.
  • the polyolefin is, for example, polypropylene or polyethylene or an ionomer resin or another ethylene copolymer resin.
  • the barrier layer can also consist of a mixture of the thermoplastic resins mentioned with one another or with other thermoplastic resins.
  • the front side barrier layer preferably contains pigments.
  • the barrier layer is applied as an aqueous solution of a water-soluble film-forming polymer and dried.
  • Suitable water-soluble polymers are, for example, polyvinyl alcohols, film-forming starch derivatives, film-forming cellulose derivatives, copolymers of acrylic acid with other vinyl monomers, alginates, casein, polyacrylamide, polystyrene sulfonate or mixtures of these polymers with one another or with other substances dissolved or dispersed in water.
  • the fat The dried barrier layer is between 4 and 30 pm, depending on the type of polymer.
  • the barrier layer is produced from the aqueous dispersion of a water-insoluble polymer or from a mixture of such a polymer dispersion with a water-soluble binder dissolved in water.
  • Suitable polymer dispersions are dispersions with ethylene polymers and copolymers, acrylate or methacrylate polymers and copolymers, vinyl acetate copolymers and mixtures of such polymer dispersions with one another which are film-forming at the drying temperatures customary in the paper machine or in the coating machine.
  • the thickness of the dried barrier layer is between 4 and 30 ⁇ m when it is produced from an aqueous dispersion.
  • the barrier layer can contain all the usual additives and auxiliaries such as pigments, dyes. Brighteners, plasticizers, electrolytes etc. contain. The only exception is the use of larger amounts of free wetting agents. Specifically, this means that the surface tension of an aqueous coating mixture should preferably not be less than 55 mN / m. In particular, non-ionic wetting agents in the barrier layer should be avoided as far as possible.
  • a mixture curable by electron beams is applied to the water-free barrier layer either directly or after carrying out an adhesion-improving pretreatment and solidified by the action of electron beams.
  • Conventional photographic layers based on photocatalytic redox systems, for example silver salts, are applied to this layer hardened by means of electron beams, optionally also after applying an adhesive layer.
  • the coating consolidated by means of electron beams preferably contains pigments and optionally small amounts of dyes and / or other additives in addition to the binder.
  • a coating has a basis weight of about 10 to 60 g / m 2 (preferably 15 to 40 g / m 2 ).
  • the curable mixture is applied using one of the known coating processes, leveled and, after being covered with a protective gas, cured by means of electron beams.
  • a protective gas cured by means of electron beams.
  • DE-OS 3 022 709 it can also be pressed against a shaping surface after application and then solidified by means of electron beams through paper and barrier layers without the use of a protective gas.
  • the two-sided layers according to DE-OS 3 022 709 can also be applied in one operation and solidified at the same time.
  • pigments in a layer to be hardened by means of electron beams are white pigments, e.g. Titanium oxide, zirconium oxide, zinc oxide, zinc sulfide, antimony oxide, barium sulfate, calcium carbonate. Color pigments, carbon black or soluble dyes can also be contained in the layer for special purposes or for taste considerations. However, the layer can also be transparent.
  • the back of the paper of the multi-layer carrier material produced according to the invention is also coated with a barrier layer and a hardenable layer and optionally further layers.
  • the single-sided multilayer structure according to the invention is sufficient for simple applications.
  • One or more photographic layers based on silver salt emulsions for black / white or color photographs are arranged over the front-side layer hardened by electron beams, optionally after application of a further intermediate layer.
  • FIGS. 1-3 For a better understanding of the structure of the carrier material according to the invention, different embodiments are shown in cross section in FIGS. 1-3.
  • 1 denotes the photographic layer, which in turn can consist of several layers.
  • 2 denotes an optionally present adhesion-promoting intermediate layer
  • 3 denotes the front layer which is solidified by means of electron beams and preferably contains pigment
  • 4 denotes the front barrier layer
  • 5 denotes the photographic base paper with a hydrophobizing inner sizing and / or optionally a surface sizing
  • 6 denotes the rear barrier layer
  • 7 denotes another layer hardened by electron beams
  • 8 denotes another functional back layer.
  • a photographic base paper weighing approx. 80 g / m 2 which is glued on the inside with alkyl ketene dimer and polyamide epichlorohydrin resin and which has been given a surface sizing made from anionic starch with NaCl, is coated on both sides by means of extrusion coating with approx. 12 g / m 2 of a polyethylene mixture.
  • the polyethylene mixture contains approx. 10% by weight of titanium dioxide and 0.2% by weight of cobalt violet pigment.
  • Polyethylene represents all extrudable thermoplastic polymers.
  • Parts of the thus pre-coated paper are then respectively by corona treatment of the poly äthylenoberfest on both sides according to the method described in DE-OS 3,022,709 with 25 g / m 2 coated with radiation-curable mixtures, and this is solidified by means of electron beams.
  • the coating on one side is solidified through the paper in contact with a high-gloss cylinder, and the coating on the opposite side is solidified under nitrogen as a protective gas after equalization.
  • the solidification takes place by means of electron beams with an energy dose of 40 J / g.
  • the dried barrier coating has a weight per unit area of approximately 15 g / m 2 . It is smoothed with the aid of a calendering device and, according to example 1, recipe F, is coated on both sides with 20 g / m 2 of a layer hardened by electron beams.
  • the layer is solidified under nitrogen by means of electron beams with an energy dose of 30 J / g and forms the back of the photographic support.
  • the weight per unit area of the barrier layer is approx. 25 g / m 2 .
  • the precoated paper is smoothed and, according to Example 1, recipe F, coated on one side with about 15 g / m 2 of a curable mixture. The mixture is pressed against a high-gloss cylinder and solidified from the back by means of electron beams at 50 J / g.
  • a comparative example 13 was taken from a photographic carrier paper coated on both sides with polyethylene, which according to comparative example A from DOS 3 022 451 was coated on the front with a 15/85 titanium dioxide / polyethylene mixture and on the back with a non-pigmented polyethylene layer.
  • barrier layers were determined with the Hercules sizing tester using hexanediol diacrylate (HDDA) as test equipment. The device and its function are described in the leaflet "Hercules - degree of performance tester " from Hercules NV. The Hague (Holland). These tests were carried out before the hardenable coating was applied to the papers.
  • HDDA hexanediol diacrylate
  • Papers coated on both sides with water resistance are generally only coated on the side with a barrier layer and an electron beam hardened layer which is intended for coating with light-sensitive layers.
  • the opposite side can be coated in any waterproof manner according to one of the methods described in the literature. All known types of surface design that are required by the use of the papers, i.e. Roughness, writeability, antistatic properties and rolling behavior of the papers are preferably controlled via the back coating.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)
  • Packages (AREA)
EP83111927A 1983-01-03 1983-11-29 Wasserfester fotografischer Papierträger Expired EP0114973B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83111927T ATE42838T1 (de) 1983-01-03 1983-11-29 Wasserfester fotografischer papiertraeger.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3300025A DE3300025A1 (de) 1983-01-03 1983-01-03 Wasserfester fotografischer papiertraeger
DE3300025 1983-01-03

Publications (3)

Publication Number Publication Date
EP0114973A2 EP0114973A2 (de) 1984-08-08
EP0114973A3 EP0114973A3 (en) 1985-03-06
EP0114973B1 true EP0114973B1 (de) 1989-05-03

Family

ID=6187663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111927A Expired EP0114973B1 (de) 1983-01-03 1983-11-29 Wasserfester fotografischer Papierträger

Country Status (9)

Country Link
US (1) US4645736A (enrdf_load_stackoverflow)
EP (1) EP0114973B1 (enrdf_load_stackoverflow)
JP (1) JPS59124336A (enrdf_load_stackoverflow)
AT (1) ATE42838T1 (enrdf_load_stackoverflow)
AU (1) AU566769B2 (enrdf_load_stackoverflow)
DD (1) DD217913A5 (enrdf_load_stackoverflow)
DE (2) DE3300025A1 (enrdf_load_stackoverflow)
ES (1) ES527998A0 (enrdf_load_stackoverflow)
HU (1) HU200634B (enrdf_load_stackoverflow)

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GB8429729D0 (en) * 1984-11-24 1985-01-03 Wiggins Teape Group Ltd Base paper
DE3569991D1 (en) * 1985-09-04 1989-06-08 Schoeller F Jun Gmbh Co Kg Waterproof paper support for photographic layers
DE3535954C2 (de) * 1985-10-09 1994-05-26 Schoeller Felix Jun Papier Wasserfester Papierträger für fotografische Aufzeichnungsmaterialien
DE3668995D1 (de) * 1986-07-22 1990-03-15 Schoeller F Jun Gmbh Co Kg Fotografischer papiertraeger und verfahren zu seiner herstellung.
US5084344A (en) * 1988-02-26 1992-01-28 Mitsubishi Paper Mills Limited Photographic support comprising a layer containing an electron beam hardened resin and white pigment of a thickness of 5-100 microns
JP2680333B2 (ja) * 1988-03-22 1997-11-19 三菱製紙株式会社 写真用支持体およびその製造方法
GB9014581D0 (en) * 1990-06-29 1990-08-22 James River Graphics Ltd Co-extrusion method
US5374508A (en) * 1990-12-21 1994-12-20 New Oji Paper Co., Ltd. Support sheet for photographic printing sheet
EP0492887B1 (en) * 1990-12-21 1997-08-27 Oji Paper Co., Ltd. Support sheet for photographic printing sheet
JPH06502026A (ja) * 1991-08-19 1994-03-03 イーストマン コダック カンパニー 低酸素透過率を有する写真用紙
US5264317A (en) * 1991-09-03 1993-11-23 Eastman Kodak Company Oxygen barrier coated photographic coupler dispersion particles for enhanced dye-stability
US5185230A (en) * 1991-09-03 1993-02-09 Eastman Kodak Company Oxygen barrier coated photographic coupler dispersion particles for enhanced dye-stability
US5470652A (en) * 1991-10-03 1995-11-28 Oji Paper Co., Ltd Support sheet for photographic printing paper and process for producing the sheet
US5290671A (en) * 1992-05-22 1994-03-01 Eastman Kodak Company Color photographic element providing improved dye stability
JPH06130551A (ja) * 1992-10-21 1994-05-13 Konica Corp ハロゲン化銀カラー写真感光材料
DE4302678A1 (de) * 1993-02-01 1994-08-04 Schoeller Felix Jun Papier Recyclierbarer Schichtträger
US5780213A (en) * 1993-12-22 1998-07-14 Fuji Photo Film Co., Ltd. Photographic printing paper support
JP3724822B2 (ja) * 1993-12-22 2005-12-07 富士写真フイルム株式会社 写真印画紙用支持体
JP3134644B2 (ja) * 1993-12-27 2001-02-13 富士ゼロックス株式会社 インクジェット用記録紙
JP3237363B2 (ja) * 1993-12-28 2001-12-10 王子製紙株式会社 写真印画紙用支持体
US5576152A (en) * 1994-08-26 1996-11-19 Eastman Kodak Company Photographic paper formed with low molecular weight polyvinyl alcohol having low oxygen permeability
DE19509511A1 (de) * 1995-03-16 1996-09-19 Bayer Ag Gegen Gamma-Strahlung stabilisierte (Co)Polycarbonate
DE19542186A1 (de) * 1995-11-13 1997-05-15 Bayer Ag Gegen gamma-Strahlung stabilisierte (Co)Polycarbonate
US20010005550A1 (en) * 1998-03-10 2001-06-28 Jorgen Bengtsson Laminated packaging materials and packaging containers produced therefrom
SE9801675D0 (sv) * 1998-05-13 1998-05-13 Tetra Laval Holdings & Finance Gas barrier packaging laminate, method for production thereof and packaging containers
US5936007A (en) * 1996-11-04 1999-08-10 Bayer Ag (Co)polycarbonates stabilized against γ-radiation
US5895074A (en) * 1997-10-02 1999-04-20 Moore U.S.A., Inc. Identification card and method of making
US5994045A (en) * 1997-12-24 1999-11-30 Eastman Kodak Company Composite photographic material with laminated biaxially oriented polyolefin sheets with controlled water vapor transmission rate
US6291127B1 (en) 2000-08-23 2001-09-18 Eastman Kodak Company Water-borne polyester coated imaging member
US7078447B2 (en) * 2003-11-21 2006-07-18 General Electric Company Ionizing radiation stable polyarylestercarbonate compositions
US20050123439A1 (en) * 2003-12-09 2005-06-09 Eastman Kodak Company Device for sensing contaminants
WO2005056658A1 (en) * 2003-12-09 2005-06-23 Celanese International Corporation Optical brightener and method of preparing it
US20070218254A1 (en) * 2006-03-15 2007-09-20 Xiaoqi Zhou Photographic printing paper and method of making same
JP7348177B2 (ja) * 2018-06-29 2023-09-20 株式会社カネカ パターン印刷用レジスト組成物及びパターン形成方法

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE3022709A1 (de) * 1980-06-18 1982-01-07 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Wasserfestes fotografisches papier und verfahren zu seiner herstellung

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Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE3022709A1 (de) * 1980-06-18 1982-01-07 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Wasserfestes fotografisches papier und verfahren zu seiner herstellung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
J.P. Casey, PULP AND PAPER, 1952, vol. 1, pp. 548/549, Interscience Publishers *

Also Published As

Publication number Publication date
DE3300025C2 (enrdf_load_stackoverflow) 1992-11-05
ES8406747A1 (es) 1984-08-01
DE3300025A1 (de) 1984-07-05
AU2246883A (en) 1984-07-05
JPH0563784B2 (enrdf_load_stackoverflow) 1993-09-13
DD217913A5 (de) 1985-01-23
HU200634B (en) 1990-07-28
US4645736A (en) 1987-02-24
DE3379804D1 (en) 1989-06-08
EP0114973A3 (en) 1985-03-06
EP0114973A2 (de) 1984-08-08
ATE42838T1 (de) 1989-05-15
ES527998A0 (es) 1984-08-01
AU566769B2 (en) 1987-10-29
JPS59124336A (ja) 1984-07-18
HUT37277A (en) 1985-11-28

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