Two-phase acidic aqueous compositions
    2.
    发明授权
    Two-phase acidic aqueous compositions 失效
    两相酸性水性组合物

    公开(公告)号:US5427899A

    公开(公告)日:1995-06-27

    申请号:US189105

    申请日:1994-01-31

    摘要: A two-phase acidic aqueous composition for use as a neutralization layer is generally comprised of a water soluble aqueous phase and a water insoluble particle phase. The particle phase generally comprises a copolymer having recurring units of an organic acid monomer and an organic ester monomer. The aqueous phase comprises a water soluble polymer having recurring units of at least an organic acid monomer. The organic acid monomers selected for the aqueous phase polymer are capable of interacting with the particle phase polymers such that the particle phase polymers are brought into stabilizing, intimate association with the aqueous phase.

    摘要翻译: 用作中和层的两相酸性水性组合物通常由水溶性水相和水不溶性颗粒相组成。 颗粒相通常包含具有有机酸单体和有机酯单体的重复单元的共聚物。 水相包含具有至少有机酸单体的重复单元的水溶性聚合物。 选择用于水相聚合物的有机酸单体能够与颗粒相聚合物相互作用,使得颗粒相聚合物进入稳定状态,与水相密切相关。

    Image-receiving element for diffusion transfer photographic and
photothermographic film products
    3.
    发明授权
    Image-receiving element for diffusion transfer photographic and photothermographic film products 失效
    图像接收元件用于扩散转印照相和光热成像膜产品

    公开(公告)号:US5591560A

    公开(公告)日:1997-01-07

    申请号:US568937

    申请日:1995-12-07

    CPC分类号: G03C8/52

    摘要: An image-receiving element for use in photographic and photothermographic diffusion transfer film units of the type wherein the image-receiving element is designed to be removed or "peeled-apart" from a photosensitive element following exposure and processing. The present image-receiving element comprises in sequence, a support, an image-receiving layer, and a strip-coat layer. The strip-coat layer serves to facilitate separation of the image-receiving layer from a photosensitive element after processing. The strip-coat layer comprises a copolymer including: 1) at least about 50% by weight of monomer units, the same or different, derived from an ethylenically unsaturated carboxylic acid or salt thereof, 2) at least about 15% by weight of monomer units of vinyl pyrrolidone, and 3) at least about 5% by weight of monomer units, the same or different, represented by the formula: ##STR1## wherein R.sub.1 of each monomer unit is independently selected from: hydrogen, a substituted or unsubstituted alkyl having 1 to 4 carbon atoms, cyano, and halogen; X of each monomer unit is independently selected from --NH-- or --O--; and R.sub.2 of each monomer unit is independently selected from a hydroxy substituted alkyl group.

    摘要翻译: 用于照相和光热成像漫射转印膜单元的图像接收元件,其中图像接收元件被设计成在曝光和处理之后从光敏元件去除或“剥离”。 本图像接收元件依次包括支撑体,图像接收层和带状涂层。 带涂层用于促进图像接收层与处理后的感光元件的分离。 带涂层包括共聚物,其包括:1)至少约50重量%的衍生自烯键式不饱和羧酸或其盐的相同或不同的单体单元,2)至少约15重量%的单体 乙烯基吡咯烷酮单元,和3)至少约5重量%的单体单元,相同或不同,由下式表示:其中每个单体单元的R 1独立地选自:氢,取代或未取代的烷基 具有1至4个碳原子,氰基和卤素; 每个单体单元的X独立地选自-NH-或-O-; 每个单体单元的R2独立地选自羟基取代的烷基。