PHOTOSENSITIVE AND PHOTOPOLYMERIZABLE PRINTING PLATE

    公开(公告)号:JPH10301275A

    公开(公告)日:1998-11-13

    申请号:JP33009497

    申请日:1997-12-01

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To improve adhesiveness between a carrier material and a relief layer and to shorten an exposure time required in the case of manufacturing a printing plate body from a printing plate by using an interlayer containing a specified arylglycidyl ether (meth)acrylate in a polymerized state. SOLUTION: This photosensitive and photopolymerizable printing plate suitable for manufacturing a printing plate body is deposited on a dimensional stability carrier with at least one layer of an interlayer and is deposited on this layer with a photosensitive relief-forming layer composed essentially of a mixture of a polymer binder, at least one kind of photopolymerizable ethylenic unsaturated compound, a photopolymerization initiator and a thermopolymerization inhibitor. Then, at least one layer of the interlayer contains the compound in a polymerized state represented by the formula in which R is an H atom or a 1-10C alkyl group or the like, R is an H atom or a methyl group, X is -C2 H4 -, -(CH2 -CH2 -O)n -C2 H4 or the like and (n) is an integer of 1-8.

    2.
    发明专利
    未知

    公开(公告)号:DE3803457A1

    公开(公告)日:1989-08-17

    申请号:DE3803457

    申请日:1988-02-05

    Applicant: BASF AG

    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.

    4.
    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

    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.

    RELIEF PRINTING PLATES AND LAMINATES FOR THEIR MANUFACTURE

    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

    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.

    9.
    发明专利
    未知

    公开(公告)号:DE2259360A1

    公开(公告)日:1974-06-12

    申请号:DE2259360

    申请日:1972-12-04

    Applicant: BASF AG

    Abstract: 1450906 Polyurethane layers; photopolymerizing unsaturated monomers BASF AG 3 Dec 1973 [4 Dec 1972] 55919/73 Headings C3R and C3P Polyurethane layers are prepared by adding a compatible monomer having at least two photocross-linkable C-C multiple bonds or a compatible monomer mixture comprising at least 50% by weight of one of such monomers and not more than 50% by weight of a photopolymerizable monoethylenically unsaturated monomer, and optionally also a photopolymerization initiator, to a liquid polyurethane elastomer forming reaction mixture comprising (A) (i) a polyether, polyester, hydroxypolyether urethane or hydroxypolyester urethane or a mixture thereof with a polyalcohol and/or a diamino and (ii) a diisocyanate or (B) (i) a prepolymer of a hydroxyl compound as defined in (A) and a diisocyanate and (ii) a polyester, polyether, hydroxypolyester urethane, hydroxypolyetherurethane, polyhydric alcohol, or diamine or a mixture of two or more thereof, the resulting mixture containing a major amount of the polyurethane elastomer-forming reaction mixture, applying the resulting mixture to a substrate to form a layer, irradiating the layer with electromagnetic radiation of wavelength less than 0À7 Ám to effect photocrosslinking of the monomer(s) and gelling of the layer and thermally curing the so-treated layer. The layer is suitably formed on a continuously moving substrate and has a thickness of from 0À2 to 5 mm. Conventional polyurethane elastomer-forming reactants are used. The monomer having at least two C-C multiple bonds is preferably an olefinically poly-unsaturated carboxylate, for example a diester of a C 2-6 aliphatic diol and acrylic or methacrylic acid, a triester of a C 3-10 aliphatic triol and acrylic or methacrylic acid, a divinyl ester of a C 2-8 dicarboxylic acid, a diallyl ester of a C 2-8 dicarboxylic acid and a vinyl ester or allyl ester of a C 3-5 olefinically unsaturated monocarboxylic acid. The unsaturated monomers are preferably used in amounts not exceeding 10% weight of the reaction mixture.

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