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    • 41. 发明授权
    • Polymeric electrically active conductive layer (EAC) for electrically
activatable recording element and process
    • 用于电可激活记录元件和工艺的聚合物电活性导电层(EAC)
    • US4410614A
    • 1983-10-18
    • US388376
    • 1982-06-14
    • Mark LelentalJames M. Pearson
    • Mark LelentalJames M. Pearson
    • G03G5/026G03G5/153G03G13/22G03G17/00
    • G03G5/026G03G5/153
    • In an electrically activatable recording element and process comprising a polymeric electrically active conductive layer improvements are provided wherein the polymeric electrically active conductive layer comprises a polymer that has recurring units represented by the structure: ##STR1## wherein R is hydrogen or alkyl containing 1 to 20 carbon atoms;R.sup.1 and R.sup.3 are individually hydrogen or methyl;R.sup.2 is alkyl containing 2 to 20 carbon atoms;x is 0 or 1;y is 0 to 4;R.sup.4 is C.sub.6 H.sub.5-z X.sub.z ; wherein z is 1 to 5;X is chlorine, bromine or iodine;n is 40 to 100 weight percent;and the polymer has a glass transition temperature within the range of 20.degree. C. to 40.degree. C.Such a polymeric electrically active conductive layer is useful in, for example, an electrically activatable recording element comprising an electrically conductive support having thereon, in sequence:(a) a polymeric electrically active conductive layer, as described,(b) an electrically activatable recording layer comprising:(A) a dye-forming coupler, and(B) an oxidation-reduction combination comprising:(i) an organic silver salt oxidizing agent consisting essentially of a silver salt of a 1,2,4-mercaptotriazole derivative with(ii) a reducing agent which, in its oxidized form, forms a dye with said dye-forming coupler,(c) a photoconductive layer separated from (b) by an air gap of up to 20 microns or separated from (b) by an electrically conductive interlayer, and(d) an electrically conductive layer.The recording element is light handleable and provides a dye image and silver image by dry development processing.
    • 在可激活的记录元件和包含聚合物电活性导电层的方法中,提供了改进的改进,其中聚合物电活性导电层包含具有由以下结构表示的重复单元的聚合物:其中R是氢或含有1至20个 碳原子 R1和R3分别是氢或甲基; R2是含有2-20个碳原子的烷基; x为0或1; y为0〜4; R4为C6H5-zXz; 其中z为1至5; X是氯,溴或碘; n为40〜100重量% 并且聚合物的玻璃化转变温度在20℃至40℃的范围内。这种聚合物电活性导电层可用于例如依次具有其上的导电载体的可电激活的记录元件 (a)聚合物电活性导电层,如上所述,(b)可电致活化的记录层,包括:(A)染料形成成色剂,和(B)氧化还原组合,其包含:(i)有机银 基本上由1,2,4-巯基三唑衍生物的银盐组成的盐氧化剂,和(ii)以氧化形式与所述成色剂形成染料的还原剂,(c)分离的光电导层 从(b)到达20微米的气隙或者由(b)由导电中间层分离,和(d)导电层。 记录元件可轻易处理,并通过干式显影处理提供染料图像和银色图像。
    • 42. 发明授权
    • Polymeric electrically active conductive layer for electrically
activatable recording element and process
    • 用于电可激活记录元件和工艺的聚合物电活性导电层
    • US4332875A
    • 1982-06-01
    • US229701
    • 1981-01-29
    • Mark LelentalRichard C. Sutton
    • Mark LelentalRichard C. Sutton
    • G03C1/498G03G17/00G03G5/026G03G5/04
    • G03G17/00G03C1/49872G03C1/4989
    • In an electrically activatable recording element, such as one comprising an electrically conductive support having thereon, in sequence: (a) a polymeric electrically active conductive (EAC) layer, (b) an electrically activatable recording layer comprising (A) a dye-forming coupler, and (B) an oxidation-reduction combination comprising (i) an organic silver salt oxidizing agent consisting essentially of a silver salt of a 1,2,4-mercaptotriazole derivative, with (ii) a reducing agent which, in its oxidized form, forms a dye with the dye-forming coupler, (c) a photoconductive layer separated from (b) by an air gap of up to 20 microns, and (d) an electrically conductive layer; improvements are provided by means of a polymeric EAC layer (a) consisting essentially of a vinyl addition polymer, such as poly(methyl acrylate-co-vinylidene chloride). The recording element is room light handleable and provides a dye image and silver image by dry development processing.
    • 在可激活的记录元件中,例如包括其上的导电载体的顺序:(a)聚合物电活性导电(EAC)层,(b)可电激活的记录层,其包含(A)成染染色剂 成色剂和(B)氧化还原组合,其包含(i)基本上由1,2,4-巯基三唑衍生物的银盐组成的有机银盐氧化剂与(ii)还原剂,其在其氧化 形成染料,与染料形成成色剂形成染料,(c)通过高达20微米的气隙与(b)分离的光电导层,和(d)导电层; 通过基本上由乙烯基加成聚合物如聚(丙烯酸甲酯 - 共 - 偏二氯乙烯)组成的聚合物EAC层(a)提供改进。 记录元件是室内光线处理,通过干式显影处理提供染色图像和银色图像。