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    PRODUCTION OF PHOTOSENSITIVE RECORDING ELEMENT
    1.
    发明专利
    PRODUCTION OF PHOTOSENSITIVE RECORDING ELEMENT 失效

    公开(公告)号：JPH0647789A

    公开(公告)日：1994-02-22

    申请号：JP33135292

    申请日：1992-12-11

    Applicant: BASF AG

    Inventor： GEERUHARUTO BURETSUKUMAN ,  TOOMASU RERUTSUAA ,  TOOMASU TERUZAA

    IPC: B29B7/48 ,  B05D1/26 ,  B05D7/00 ,  B29C47/06 ,  B29C47/10 ,  B29C47/40 ,  B29C48/74 ,  G03F7/027 ,  G03F7/028 ,  G03F7/16 ,  G03F7/18

    Abstract: PURPOSE: To continuously produce a multilayered photosensitive recording element by a simple and economical method by melting components to be used in the production of the individual layers of a photopolymerizable recording layer in one screw extruder to mix them. CONSTITUTION: A component mixture comprising components (a), (b) is degassed at a degassing position and, next, about 5% of the component mixture is taken out of an extruder in front of a re-supply member 4. This partial flow is supplied into a bypass pipe by using a gear pump 5 and the component mixture is supplied to a multilayered nozzle 6 by a static mixer 7. A component (d) is supplied to the component mixture remaining in the extruder and this mixture is degassed in front of a kneading member 8 to be supplied to the multilayered nozzle 6. Individual layers are formed within the multilayered nozzle from mass flows (e), (f) to be mutually bonded. The obtained composite is rolled. By this method, a recording element having a photopolymerizable recording layer consisting of individual layers having different properties can be produced.

    MAKING OF RELIEF PRINTING PLATE
    2.
    发明专利
    MAKING OF RELIEF PRINTING PLATE 失效

    公开(公告)号：JPH027056A

    公开(公告)日：1990-01-11

    申请号：JP25743888

    申请日：1988-10-14

    Applicant: BASF AG

    Inventor： TOOMASU TERUZAA ,  HORUSUTO KOTSUHO ,  KAARUURUDORUFU KURUTSU ,  HERUMUUTO BATSUHA ,  HAINTSUUURURITSUHI BUERUTAA

    IPC: G03F7/00 ,  G03F7/32

    Abstract: PURPOSE: To shorten the relief developing time, to relieve the toxicity of solvent and to reduce malodor by using a hydrogenated petroleum fraction having a specified flash point and b.p. range as the solvent. CONSTITUTION: A picture is exposed in a layer cross-linkable by photopolymerization (e.g. a layer contg. styrene-isoprene-styrene/butadiene as a binder) by using active rays, the part of the unexposed part which is not cross-linked is washed out with a hydrocarbonic solvent A or a mixture of the solvent A and an alcohol B. A hydrogenated petroleum fraction having >=45 deg.C flash point and 160-220 deg.C b.p. is used as the solvent A. The aromatic content according to DIN 51378 of the fraction is preferably controlled to

    CONTINUOUS METHOD FOR PRODUCING PHOTOSENSITIVE RECORDING ELEMENT
    4.
    发明专利
    CONTINUOUS METHOD FOR PRODUCING PHOTOSENSITIVE RECORDING ELEMENT 失效

    公开(公告)号：JPH02154258A

    公开(公告)日：1990-06-13

    申请号：JP25800289

    申请日：1989-10-04

    Applicant: BASF AG

    Inventor： HORUSUTO KOTSUHO ,  KAARUURUDORUFU KURUTSU ,  TOOMASU TERUZAA ,  MANFUREETO TSUYURUGAA

    IPC: G03F7/004 ,  B05D3/06 ,  G03F7/00 ,  G03F7/16

    Abstract: PURPOSE: To obtain a photosensitive recording element fit for relief printing by separately melting mixtures each used for producing a single layer, gathering the resultant flows of melts before feeding into the gap in a calender, introducing them into the gap as a lapped molten flat formed body an carrying out rolling. CONSTITUTION: Mixture composed of a single layer contains a polymer having olefinic unsatd. groups as a binder, a photopolymn. initiator and one or more kinds of olefinic unsatd. compds. (monomers) compatible with the binder. The mixture is melted and the resultant flows of melts are gathered and introduced into the gap is calender as a lapped molten flat formed body. In this case, the pref. time from the gathering to the introduction is 10sec to 5min, especially 30sec to 3min. Layers are bonded by rolling with high bonding strength and the thickness is precisely regulated to the desired value.

    FLAT PHOTOSENSITIVE RECORDING MATERIAL
    5.
    发明专利
    FLAT PHOTOSENSITIVE RECORDING MATERIAL 失效

    公开(公告)号：JPH024256A

    公开(公告)日：1990-01-09

    申请号：JP2594789

    申请日：1989-02-06

    Applicant: BASF AG

    Inventor： KAARUURUDORUFU KURUTSU ,  HORUSUTO KOTSUHO ,  TOOMASU TERUZAA ,  MANFUREETO TSUYURUGAA

    IPC: G03F7/004 ,  C08F2/50 ,  G03F7/00 ,  G03F7/027 ,  G03F7/028 ,  G03F7/033

    Abstract: PURPOSE: To obtain a method for fine and precise exposure and development in a short time by forming a photopolymerizable relief-forming layer having a specified structure. CONSTITUTION: A photopolymerizable relief forming layer (A) contains at least one kind of polymer binder selected from among ethylene/propyelen/alkadiene random ternary polymers having a double bond part having 2 to 20 double bonds per 1000 carbon atoms and 40-80wt.% ethylene content. The binder is included by 20 to 99.499wt.% of the layer (A). Moreover, the layer contains 0.001-10wt.% photopolymn. initiator, 0.5-50wt.% monomers and 0-40wt.% assistant to change the characteristics. The obtd. recording material enables fast exposure and gives an extremely large latitude for exposure. Thereby, a fine motif of an image mask or a negative original can accurately be reproduced.

    MANUFACTURE OF PRINTING PLATE HAVING PHOTOPOLYMERIZATION FLEXOGRAPH RELIEF
    7.
    发明专利
    MANUFACTURE OF PRINTING PLATE HAVING PHOTOPOLYMERIZATION FLEXOGRAPH RELIEF 失效

    公开(公告)号：JPH04299343A

    公开(公告)日：1992-10-22

    申请号：JP15150891

    申请日：1991-06-24

    Applicant: BASF AG

    Inventor： TOOMASU TERUZAA ,  HERUMUUTO BATSUHA

    IPC: G03F7/00 ,  G03F7/027 ,  G03F7/028 ,  G03F7/32

    Abstract: PURPOSE: To provide an improved method of producing a photopolymerizable flexographic relief printing plate body by subjecting a photosensitive recording element to image forming exposure and washing away non-exposed parts with an org. developer solvent. CONSTITUTION: This process produces the photopolymerizable flexographic relief printing plate body by subjecting the recording layers (B) of the photosensitive recording element having (A) a dimensionally stable substrate and (B) at least one layer of the photopolymerizable recording layers contg. (b1) at least one kind of elastomer polymers as a binder, (b2) at least one kind of photopolymerizable monomers compatible with the binder (b1) and (b3) at least one kind of photopolymn. initiators to image forming exposure to chemical rays and developing the non-exposed parts, namely, non-photopolymerized parts of the recording layers (B) by washing away with an org. developer solvent, thereby forming relief layers. The org. developer solvent described above contains at least one kind of antistatic agents at 1pphm to 3wt.% of the entire amt. thereof.

    METHOD OF MANUFACTURING PHOTOPOLYMERIZABLE FLEXOGRAPHIC RELIEF PRINTING PLATE BODY
    8.
    发明专利
    METHOD OF MANUFACTURING PHOTOPOLYMERIZABLE FLEXOGRAPHIC RELIEF PRINTING PLATE BODY 失效

    公开(公告)号：JPH04280248A

    公开(公告)日：1992-10-06

    申请号：JP15150991

    申请日：1991-06-24

    Applicant: BASF AG

    Inventor： TOOMASU TERUZAA

    IPC: G03F7/00 ,  G03F7/027 ,  G03F7/32

    Abstract: PURPOSE: To provide a process for producing a flexographic printing plate body from a polymerizable recording element which does not exhibit the drawbacks of conventional technique even if a severe contrast standard is taken into consideration. CONSTITUTION: The org. developing solvent of this method contains 10 to 95vol.%, by the entire amt., thereof, at least one kind of mineral oil fractions from which arom. contents are removed and which have a b.p. range from 150 to 260 deg.C and a flash point higher than 45 deg.C and 90 to 5vol.% satd. alcohol having >=6C alkyl groups and/or at least one kind of esters of the satd. alcohol substd. with alkoxy having >=3C alkoxy alkyl groups as a whole and acetic acid, of which the b.p. or the b.p. range is adjusted to meet the b.p. of the mineral oil fractions subjected to the removal of the arom. components and/or at least one kind of alkyl glycolate and/or alkoxy alkyl glycolate.

    MANUFACTURE OF MULTI-LAYER PLANAR PHOTOSENSITIVE RECORDING MATERIAL AND PHOTOPOLYMERIZED PRINTING PLATE OR RELIEF PLATE AND PHOTORESIST
    10.
    发明专利
    MANUFACTURE OF MULTI-LAYER PLANAR PHOTOSENSITIVE RECORDING MATERIAL AND PHOTOPOLYMERIZED PRINTING PLATE OR RELIEF PLATE AND PHOTORESIST 失效

    公开(公告)号：JPH01154138A

    公开(公告)日：1989-06-16

    申请号：JP27337888

    申请日：1988-10-31

    Applicant: BASF AG

    Inventor： KAARUURUDORUFU KURUTSU ,  HORUSUTO KOTSUHO ,  TOOMASU TERUZAA ,  HERUMUUTO BATSUHA

    IPC: G03F7/004 ,  G03F7/00 ,  G03F7/09 ,  G03F7/11

    Abstract: PURPOSE: To obtain a novel multilayered flat planar photosensitive recording material suitable for forming a relief plate by incorporating specific ratios of compds of a group of specific third amine and third amide into a coating layer. CONSTITUTION: The recording material is formed by incorporating 1 to 20wt.% compd. from the third amine and third amide expressed by formula I by the total weight of the coating layer into the coating layer. In the formula I, R denotes 12 to 16C alkyl group, 18C alkenyl group 12, to 18C alkane carbonyl group or 18C alkene carbonyl group; n denotes an integer of 1 to 15; m denotes an integer of 1 to 15. As a result, the coating of a photosensitive relief forming layer with the light transparent coating layer having a uniform thickness is made possible. The exposure of the relief forming layer according to its image is not impaired and further, the sepn of the exposed relief forming layer from the relief layer photopolymerized at the time of development is made possible.

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