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    • 37. 发明授权
    • Imaging element comprising solubilized collagen gelatin and hardener
    • 成像元件包括溶解的胶原明胶和硬化剂
    • US06573037B1
    • 2003-06-03
    • US10158656
    • 2002-05-30
    • Lloyd A. LoboHwei-Ling YauJames S. HonanPaul T. Hahm
    • Lloyd A. LoboHwei-Ling YauJames S. HonanPaul T. Hahm
    • G03C1047
    • G03C1/047G03C1/005G03C1/30
    • An imaging element is described comprising one or more hydrophilic colloid layers which include gelatin as a film forming binder which has been chemically crosslinked with a gelatin hardener, wherein at least 20% of the gelatin of at least one of the one or more hydrophilic colloid layers comprises a gelatin prepared from hydrolysis of ossein using sodium or potassium hydroxide, and the gelatin is chemical crosslinked with a gelatin hardener at a level from 70 to 120 effective &mgr;mole hardener per gram of gelatin. Improvements are obtained in the wet mechanical strength of an imaging element comprising gelatin as a binder, without needing to increase the amount of chemical crosslinker with respect to the gelatin. The invention further enables the use of relatively low molecular weight gelatins without compromising the wet mechanical strength of imaging elements and without needing to increase the amount of crosslinker relative to the amount of gelatin. The invention also enables the selective improvement in the wet mechanical properties of layers with a high ratio of non-binder materials to binder without substantially increasing the amount of chemical crosslinker.
    • 描述了一种成像元件,其包含一个或多个亲水胶体层,其包括明胶作为成膜粘合剂,其已经用明胶固化剂化学交联,其中至少20%的一种或多种亲水胶体层中的至少一种的明胶 包括使用氢氧化钠或氢氧化钾从骨胶原水解制备的明胶,明胶与明胶固化剂进行化学交联,每克明胶的水平为70至120有效的莫美尔硬化剂。 在包含明胶作为粘合剂的成像元件的湿机械强度方面获得了改进,而不需要相对于明胶增加化学交联剂的量。 本发明还使得能够使用相对低分子量的明胶,而不会影响成像元件的湿机械强度,并且不需要相对于明胶量增加交联剂的量。 本发明还能够以非粘合剂材料与粘合剂的高比率选择性地提高层的湿机械性能,而基本上不增加化学交联剂的量。