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    54.
    发明专利
    未知

    公开(公告)号：DE58907866D1

    公开(公告)日：1994-07-21

    申请号：DE58907866

    申请日：1989-03-07

    Applicant: BASF AG

    Inventor： BECK ERICH DR ,  BRONSTERT BERND DR ,  HUEMMER WOLFGANG DR ,  LITTMANN DIETER DR

    IPC: C08F2/50 ,  G03F7/00 ,  G03F7/027 ,  G03F7/033 ,  G03F7/095 ,  G03F7/11

    Abstract: The invention relates to photopolymerisable printing plates suitable for producing soft-elastic printing formes. These carry, on a dimensionally stable carrier, at least one interlayer and, on top thereof, a photopolymerisable layer which essentially consists of a mixture of a water-soluble copolymer or derivative of polyvinyl alcohol, a defined copolymerisable monofunctional (meth)acrylate, a photoinitiator and a thermal polymerisation inhibitor.

    55.
    发明专利
    未知

    公开(公告)号：DE58902169D1

    公开(公告)日：1992-10-08

    申请号：DE58902169

    申请日：1989-02-23

    Applicant: BASF AG

    Inventor： RAABE ELEONORE DR ,  BECK ERICH DR

    IPC: G03F7/004 ,  G03F7/00 ,  G03F7/027 ,  G03F7/031

    Abstract: The invention relates to a light-sensitive recording material for producing intaglio printing plates and to a process for producing intaglio printing formes. … The photopolymerisable and/or photocrosslinkable material, which is soluble or dispersible in a developer fluid and becomes insoluble or no longer dispersible in this developer fluid by exposure to actinic light, contains, at least in a surface zone of the surface of the layer which later forms the surface of the printing forme, finely disperse abrasive particles, the mean particle size of the abrasive particles being in the range from 0.1 to 6 mu m, the abrasive particles having a hardness of >4.0 on the Mohs hardness scale, the surface of the layer which later forms the surface of the printing forme having a peak-to-valley height of

    57.
    发明专利
    未知

    公开(公告)号：DE3870648D1

    公开(公告)日：1992-06-11

    申请号：DE3870648

    申请日：1988-02-06

    Applicant: BASF AG

    Inventor： BECK ERICH DR ,  WEISS WOLFRAM DR ,  SCHMIDT HORST DR

    IPC: C08F20/26 ,  C07C67/08 ,  C07C67/26 ,  C07C67/60 ,  C07C69/54 ,  C08F2/50 ,  C08F20/28 ,  C08F299/00 ,  C08F299/04 ,  C08L63/00 ,  C09D167/07

    Abstract: Acrylates (I) obtainable by reacting (A) 1equiv. 2- to 6-functional oxyalkylated 2-10C alcohol (B) 0.05-1 equiv. 2-to 4-functional 3-36 carboxylic acid or its anhydride and (C) 0.1-1.5 equiv. acrylic and/or methacrylic acid and reaction of excess COOH gps. with (D) equiv. amt. of an epoxide cpd. are claimed. Prepn. of (I) by 1) esterifying (A), (B) and (C) at 60-140 deg. C in presence of acid esterification catalyst, at least one hydrocarbon forming azeotropic mixt. with water, and small amt. of polymerisation inhibitor 2) removing the hydrocarbon by distn. 3) neutralising the esterification catalyst 4) reacting excess COOH with (D).

    59.
    发明专利
    未知

    公开(公告)号：DE3927632A1

    公开(公告)日：1991-02-28

    申请号：DE3927632

    申请日：1989-08-22

    Applicant: BASF AG

    Inventor： SEITZ FRIEDRICH DR ,  BECK ERICH DR ,  ROSER JOACHIM DR ,  SCHULZ GUENTHER DR ,  BUEESCHGES ELEONORE DR ,  ZWEZ THOMAS DR

    IPC: G03F7/027 ,  C08F20/36 ,  C08F299/06 ,  C08G18/32 ,  C08G18/34 ,  C08G18/67 ,  C08G18/83

    Abstract: The invention relates to a reaction product containing urea and urethane groups and carboxyl groups and obtained by reacting …… i) a mono- or polyethylenically unsaturated mono- or polyalcohol with … ii) a diisocyanate or polyisocyanate, … iii) at least one amino compound and … iv) at least one acid anhydride of an at least dibasic carboxylic acid, where the total number of NCO and anhydride groups in ii) and iv) is less than or equal to the number of groups reactive therewith in i) and iii). …… This reaction product is suitable for the production of radiation-sensitive materials, in particular materials whose solubility in water or aqueous-alkaline solutions is increased by irradiation.

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