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    Organic photoconductive composition
    75.
    发明授权
    Organic photoconductive composition 失效
    有机光电导组合物

    公开(公告)号：US06376144B1

    公开(公告)日：2002-04-23

    申请号：US09631785

    申请日：2000-08-03

    申请人： Harald Baumann

    发明人： Harald Baumann

    IPC分类号： G03G505

    CPC分类号： G03G13/28 ,  G03G5/0208 ,  G03G5/0542 ,  G03G5/0546 ,  G03G5/0553 ,  G03G13/283

    摘要： A photoconductive composition useful for the preparation of printing plates is disclosed. The composition comprising an organic photoconductor, a charge carrier generating material, and a binder comprising a mixture of at least two copolymers. Copolymer (a) comprises an aromatic vinyl monomer, such as styrene or a substituted styrene, and maleic acid anhydride ring opened with a first aliphatic alcohol. Copolymer (b) comprises the following monomers: CH2═CH—(CH2)n—OR, in which n is 0 or 1, and R is selected from the group consisting of hydrogen, aliphatic groups having 1 to about 10 carbon atoms, and —COR′ in which R′ is an aliphatic group having 1 to about 10 carbon atoms, such as vinyl alcohol; maleic acid anhydride ring opened by a second aliphatic alcohol; and optionally CH2═CH—R″, in which R″ is a substituted or unsubstituted aromatic residue comprising from about 6 to about 20 ring atoms selected from the group consisting of carbon, oxygen, nitrogen, and sulfur, in which not more than 3 ring atoms are selected from the group consisting of oxygen, nitrogen and sulfur.

    摘要翻译： 公开了可用于制备印刷版的光导组合物。 所述组合物包含有机光电导体，电荷载体产生材料和包含至少两种共聚物的混合物的粘合剂。 共聚物（a）包含芳族乙烯基单体，例如苯乙烯或取代的苯乙烯，以及用第一脂族醇打开的马来酸酐环。 共聚物（b）包含以下单体：CH 2 = CH-（CH 2）n -OR，其中n为0或1，R选自氢，具有1至约10个碳原子的脂族基团，和 -COR'，其中R'是具有1至约10个碳原子的脂族基团，例如乙烯醇; 由第二脂肪族醇打开的马来酸酐环; 和任选地CH 2 = CH-R“，其中R”是取代或未取代的芳族残基，其包含选自碳，氧，氮和硫的约6至约20个环原子，其中不多 3个以上的环原子选自氧，氮和硫。

    UV-SENSITIVE LITHOGRAPHIC PRINTING PLATE PRECURSOR WITH BENZOXAZOLE DERIVATIVE AND ANALOGUES THEREOF AS SENSITIZER
    79.
    发明申请
    UV-SENSITIVE LITHOGRAPHIC PRINTING PLATE PRECURSOR WITH BENZOXAZOLE DERIVATIVE AND ANALOGUES THEREOF AS SENSITIZER 失效
    紫外线敏感光刻印刷板前体与苯并噻唑衍生物及其类似物作为敏化剂

    公开(公告)号：US20100291355A1

    公开(公告)日：2010-11-18

    申请号：US12161720

    申请日：2007-01-31

    申请人： Bernd Strehmel ,  Harald Baumann

    发明人： Bernd Strehmel ,  Harald Baumann

    IPC分类号： G03F7/004 ,  G03F7/20 ,  C07D413/10 ,  B32B3/10

    CPC分类号： G03F7/031 ,  C08F2/50 ,  Y10T428/24802

    摘要： Lithographic printing plate precursor comprising (a) a lithographic substrate with a hydrophilic surface and (b) a radiation-sensitive coating on the hydrophilic surface comprising (i) one or more types of monomers and/or oligomers and/or polymers, each comprising at least one ethylenically unsaturated group accessible to a free-radical polymerization, (ii) at least one sensitizer, and (iii) at least one coinitiator capable of forming free radicals together with the sensitizer, said coinitiator being other than metallocenes, characterized in that the at least one sensitizer comprises a compound of formula (I) wherein at least one of the groups R9 to R12 is a bulky group which has a van der Waals volume of at least 55 Å3.

    摘要翻译： 该平版印刷版原版包括（a）具有亲水表面的平版印刷基材和（b）亲水表面上的辐射敏感涂层，其包含（i）一种或多种类型的单体和/或低聚物和/或聚合物， 至少一种可自由基聚合的烯键式不饱和基团，（ii）至少一种敏化剂，和（iii）至少一种能够与敏化剂一起形成自由基的共引发剂，所述共引发剂不是茂金属，其特征在于： 至少一种敏化剂包括式（I）的化合物，其中基团R 9至R 12中的至少一个是大体积基团，范德华体积至少为Å3。