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公开(公告)号：CA1039100A
公开(公告)日：1978-09-26
申请号：CA212086
申请日：1974-10-23
Applicant: BASF AG
Inventor： ZUERGER MANFRED , ELZER ALBERT , RICHTER PETER , WIGGER AUGUST , WERTHER HEINZ-ULRICH
Abstract: The invention relates to relief plates for flexographic printing comprising a relatively soft elastomeric base (U) having a modulus of elasticity of from 10 to 200 kg/cm2 and a thickness of from 0,5 to 6 mm and, firmly bonded thereto, a thin, relatively hard, difficultly soluble intermediate layer Z having a modulus of elasticity of from 1 x 103 to 2.1 x 106 kg/cm2 and a thickness of from 5 to 500.mu. and, firmly bonded to said intermediate layer Z, a relief layer P' consisting of a photo-crosslinked elastomeric mixture having a modulus of elasticity of from 30 to 2,000 kg/cm and a thickness of from 200 to 300.mu., the modulus of elasticity of the photo-crosslinked relief layer P' being the same as or higher than that of the base U and the neutral surface of the relief plate lying in or near the intermediate layer Z. The invention also relates to photosensitive laminates for the production of such plates.
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公开(公告)号：DE3619698A1
公开(公告)日：1987-12-17
申请号：DE3619698
申请日：1986-06-16
Applicant: BASF AG
Inventor： ELZER ALBERT , SANNER AXEL DR , SCHUPP HANS DR , BECK ERICH DR
Abstract: A photosensitive recording element which is suitable for the production of printing plates or resist images possesses a photopolymerizable recording layer which is applied to a dimensionally stable base, can be developed in an aqueous alkaline medium and contains, as a polymeric binder, one or more film-forming copolymers which are insoluble in water but soluble or dispersible in aqueous alkaline solutions and consist of from 10 to 50% by weight of one or more N-vinylamides, preferably N-vinylcaprolactam and/or N-vinylpyrrolidone, from 5 to 30% by weight of acrylic acid and/or methacrylic acid, from 30 to 80% by weight of one or more comonomers from the group consisting of the vinyl aromatics and (meth)acrylates of monoalkanols and from 0.2 to 5% by weight of an olefinically unsaturated compound which contains basic nitrogen atoms and has a pKa>4.
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公开(公告)号：DK164933C
公开(公告)日：1993-01-18
申请号：DK327282
申请日：1982-07-21
Applicant: BASF AG
Inventor： LYNCH JOHN , ELZER ALBERT
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公开(公告)号：DK162126B
公开(公告)日：1991-09-16
申请号：DK123882
申请日：1982-03-19
Applicant: BASF AG
Inventor： ECKELL ALBRECHT , EILINGSFELD HEINZ , ELZER ALBERT , FEICHTMAYR FRANZ , HOFFMANN GERHARD , LEYRER REINHOLD J , NEUMANN PETER
IPC: G03G5/00 , C07D209/44 , 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 I where R1, R2, R3 and R4 are each hydrogen or a non-ionic substituent, X and Y are each the radical of a methylene-active 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.
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公开(公告)号：CA1259218A
公开(公告)日：1989-09-12
申请号：CA498088
申请日：1985-12-19
Applicant: BASF AG
Inventor： ELZER ALBERT , SCHORNICK GUNNAR , SANNER AXEL
Abstract: In dry film resists possessing a solid photopolymerizable resist layer, which is applied on a temporary base and can be developed with aqueous, in particular aqueous alkaline, media, and, if required, a cover sheet on the resist layer, the said resist layer is built from a homogeneous mixture of a) not less than 40% by weight of one or more oligomers which contain free carboxyl groups and more than two acryloyl and/or methacryloyl groups and are soluble or dispersible in aqueous alkaline solutions, b) from 1 to 35% by weight of one or more film-forming compatible polymers which are soluble in aqueous media, c) from 1 to 30% by weight of one or more compatible photopolymerizable monomers, d) from 0.001 to 10% by weight of one or more photoinitiators and e) from 0 to 30% by weight of further additives and/or assistants. Resist images are produced on a substrate by a process employing photopolymerizable resist layers of the type stated above.
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Patent Agency Ranking
公开(公告)号：DK162126C
公开(公告)日：1992-02-17
申请号：DK123882
申请日：1982-03-19
Applicant: BASF AG
Inventor： ECKELL ALBRECHT , EILINGSFELD HEINZ , ELZER ALBERT , FEICHTMAYR FRANZ , HOFFMANN GERHARD , LEYRER REINHOLD J , NEUMANN PETER
IPC: G03G5/00 , C07D209/44 , 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 I where R1, R2, R3 and R4 are each hydrogen or a non-ionic substituent, X and Y are each the radical of a methylene-active 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.
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公开(公告)号：CA1177685A
公开(公告)日：1984-11-13
申请号：CA407745
申请日：1982-07-21
Applicant: BASF AG
Inventor： LYNCH JOHN , ELZER ALBERT
Abstract: Gravure printing plates which are highly abrasion-resistant and scratch-resistant can be produced rapidly and simply from a photosensitive recording material by exposing the latter through a photographic positive, washing out the unexposed areas and drying the resulting gravure printing plate, if the photosensitive recording material employed, which comprises a photopolymerizable and/or photocrosslinkable layer (L) applied to a dimensionally stable base, contains finely divided, hard, abrasive particles in the layer (L), the surface of this layer, which subsequently constitutes the surface of the printing plate, has a peak-to-valley height of
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公开(公告)号：NO141506B
公开(公告)日：1979-12-17
申请号：NO743605
申请日：1974-10-04
Applicant: BASF AG
Inventor： ELZER ALBERT , RICHTER PETER , WIGGER AUGUST , WERTHER HEINZ-ULRICH , ZUERGER MANFRED
Abstract: The invention relates to relief plates for flexographic printing comprising a relatively soft elastomeric base (U) having a modulus of elasticity of from 10 to 200 kg/cm2 and a thickness of from 0.5 to 6 mm and, firmly bonded thereto, a thin, relatively hard, difficultly soluble intermediate layer Z having a modulus of elasticity of from 1 x 103 to 2.1 x 106 kg/cm2 and a thickness of from 5 to 500 mu and, firmly bonded to said intermediate layer Z, a relief layer P' consisting of a photocrosslinked elastomeric mixture having a modulus of elasticity of from 30 to 2000 kg/cm2 and a thickness of from 200 to 300 mu , the modulus of elasticity of the photocrosslinked relief layer P' being the same as or higher than that of the base U and the neutral surface of the relief plate lying in or near the intermediate layer Z. The invention also relates to photosensitive laminates for the production of such plates.
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公开(公告)号：DK164933B
公开(公告)日：1992-09-07
申请号：DK327282
申请日：1982-07-21
Applicant: BASF AG
Inventor： LYNCH JOHN , ELZER ALBERT
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公开(公告)号：CA1176896A
公开(公告)日：1984-10-30
申请号：CA407734
申请日：1982-07-21
Applicant: BASF AG
Inventor： LYNCH JOHN , ELZER ALBERT , SCHOEFFEL GERHARD
Abstract: O.Z. 0050/35291 A photopolymer gravure printing plate which has improved hardness and abrasionresistance is produced by imagewise exposure of a layer which is applied to a base and comprises a photoinitiatorcontaining mixture of polymers and photopolymerizable monomers, development of the relief image by removing the unexposed areas of the layer, drying the resulting plate at from 60.degree. to 130.degree.C, and subsequently baking it at from 200.degree. to 260.degree.C to reduce its thickness by 10 to 50%.
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