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    • 2. 发明授权
    • Preparation of relief printing plates
    • 可靠印刷板的制备
    • US5061606A
    • 1991-10-29
    • US425491
    • 1989-10-20
    • Thomas TelserHorst KochKarl-Rudolf KurtzHelmut BachHeinz-Ulrich Werther
    • Thomas TelserHorst KochKarl-Rudolf KurtzHelmut BachHeinz-Ulrich Werther
    • G03F7/00G03F7/32
    • G03F7/325
    • The present invention relates to an improved process for preparing a photopolymerized flexographic relief printing plate or a photoresist from a photosensitive element comprising a photopolymerizable layer consisting essentially of(A) at least one polymer as the binder,(B) at least one photopolymerizable monomer compatible with said binder (A) and(C) one photoinitiator, by(i) imagewise exposing said photopolymerizable layer of said element to actinic light and(ii) washing out the unexposed, non-photopolymerized parts of said layer with a developer, thereby obtaining a photopolymerized flexographic relief printing plate or a photoresist.The improvement of said process comprises: washing out the non-photopolymerized parts of the irradiated photopolymerizable layer with the developer which consists essentially of at least one hydrogenated petroleum fraction having a flashpoint above 45.degree. C. and a boiling range of from 160.degree. to 220.degree. C., 0 to 2% by weight, based on the developer, of at least one surface active compound and 0 to 10% by weight, based on the developer, of a monoterpene. In a preferred embodiment the improved process makes use of a developer which contains, in addition to the abovementioned components, 5 to 20 vol. %, based on the developer, of an alcohol selected from the group consisting of alcohols with 4 to 8 carbon atoms.
    • 本发明涉及一种由感光元件制备光聚合柔版印刷印版或光致抗蚀剂的改进方法,该光敏元件包括基本上由(A)至少一种聚合物作为粘合剂组成的可光聚合层,(B)至少一种可光聚合单体相容性 所述粘合剂(A)和(C)一种光引发剂,通过(i)将所述元件的所述可光聚合层成像曝光于光化光,和(ii)用显影剂洗涤所述层的未曝光的非光聚合部分,从而获得 光聚合柔版印刷版或光致抗蚀剂。 所述方法的改进包括:用显影剂洗涤照射的可光聚合层的非光聚合部分,该显影剂基本上由至少一种闪点在45℃以上且沸点范围为160至220℃的氢化石油馏分组成 0至2重量%,基于显色剂的至少一种表面活性化合物和0至10重量%,基于显影剂,单萜。 在优选的实施方案中,改进的方法使用显影剂,除了上述组分之外,还含有5至20体积% 基于显色剂的选自由具有4至8个碳原子的醇组成的组的醇。
    • 6. 发明授权
    • Continuous production of a photosensitive recording element
    • 连续生产光敏记录元件
    • US5049478A
    • 1991-09-17
    • US412995
    • 1989-09-26
    • Horst KochKarl-Rudolf KurtzThomas TelserManfred Zuerger
    • Horst KochKarl-Rudolf KurtzThomas TelserManfred Zuerger
    • G03F7/004B05D3/06G03F7/00G03F7/16
    • G03F7/16Y10S430/11Y10S430/111
    • A novel, improved continuous process for the production of a photosensitive recording element is described, whose photopolymerizable recording layer (A) consists of two or more individual strata (a.sub.n) lying one on top of the other and firmly bonded to one another. The individual strata (a.sub.n) may be of the same or roughly the same composition or of different compositions. In the novel, improved continuous process, the mixtures (a.sub.n) used for the production of the individual strate (a.sub.n) are prepared separately from one another and melted and, as separate molten material streams (a.sub.n), are combined even before entering the nip of a calender, without the said streams mixing as a result of turbulence. During, before or directly after they have been combined, the molten material streams (a.sub.n) are formed into molten sheet-like structures (a.sub.n) lying one on top of the other, without the said streams mixing as a result of turbulence. Thereafter, the molten sheet-like structures (a.sub.n) lying one on top of the other are introduced into the calender nip, one or both of the two outer molten sheet-like structures (a.sub.n) in contact with the calender rollers forming a rotating melt bead or rotating bank. In the calender nip itself, the said sheet-like structures (a.sub.n) are then calendered with production of the photopolymerizable recording layer (A) consisting of individual strata (a.sub.n) lying one on top of the other and firmly bonded to one another.
    • 描述了用于制备感光记录元件的新型改进的连续方法,其光聚合记录层(A)由两个或更多个单独层叠在一起而彼此牢固地结合的单个层(a)组成。 单个层(a)可以具有相同或大致相同的组成或不同组成。 在该小说中,改进的连续过程中,用于生产单个台阶(a)的混合物(a)彼此分开制备并熔化,并且作为单独的熔融材料流(an)甚至在进入辊隙之前组合 的砑光机,由于湍流,没有所述的流混合。 在组合之前或之后,熔融材料流(a)形成为位于另一个之上的熔融片状结构(a),而不会由于湍流而混合所述流。 此后,将一个位于另一个顶部的熔融片状结构(a)引入砑光辊隙中,两个外熔融片状结构(a)中的一个或两个与砑光辊接触,形成旋转熔体 珠或旋转银行。 在砑光辊隙本身中,随后生产由彼此顶部彼此牢固结合的单个层(a)组成的可光聚合记录层(A),然后压制所述片状结构(a)。
    • 7. 发明授权
    • Sheetlike light-sensitive recording
    • 片状光敏记录
    • US4994344A
    • 1991-02-19
    • US306547
    • 1989-02-03
    • Karl-Rudolf KurtzHorst KochThomas TelserManfred Zuerger
    • Karl-Rudolf KurtzHorst KochThomas TelserManfred Zuerger
    • G03F7/004C08F2/50G03F7/00G03F7/027G03F7/028G03F7/033
    • G03F7/027
    • A light-sensitive recording element useful for preparing photopolymer flexographic relief printing plates, comprising at least one photopolymerizable recording layer having a thickness of from 0.1 to 7 mm and made up of:from 20 to 99.499% by weight of at least one polymeric binder which may be random ethylene-propylene-alkadiene terpolymers having an ethylene content of from 40 to 80% by weight and a double bond content of from 2 to 20 olefinic double bonds per 1,000 carbon atoms;from 0.001 to 10% by weight of at least one photopolymerization initiator,from 0.5 to 50% by weight of at least one monomer which is compatible with the binder and has at least one photopolymerizable olefinic double bond, andfrom 0.001 to 2% by weight of at least one inhibitor of thermally initiated polymerization and from 0.0001 to 5% by weight of at least one antioxidant as assistants.
    • 用于制备感光聚合物柔版印刷版的感光记录元件,其包含至少一种厚度为0.1至7毫米的可光聚合记录层,由以下组成的至少一种聚合物粘合剂为20至99.499重量% 可以是乙烯含量为40至80重量%且每1,000个碳原子具有2至20个烯属双键的双键含量的无规乙烯 - 丙烯 - 链烯二烯三元共聚物; 0.001至10重量%的至少一种光聚合引发剂,0.5至50重量%的至少一种与粘合剂相容并具有至少一个可光聚合的烯属双键的单体和0.001至2重量% 的至少一种热引发聚合抑制剂和0.0001-5重量%的至少一种抗氧化剂作助剂。