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    • 11. 发明授权
    • Print stabilizers and antifoggants for photothermography
    • 用于光热照相印刷稳定剂和防雾剂
    • US5370988A
    • 1994-12-06
    • US203121
    • 1994-02-28
    • Frank J. ManganielloKumars Sakizadeh
    • Frank J. ManganielloKumars Sakizadeh
    • G03C1/498
    • G03C1/49845G03C1/498
    • The present invention is a heat developed, photothermographic element comprising a support bearing at least one photosensitive, image-forming photothermographic emulsion layer comprising:(a) a photosensitive silver halide;(b) a non-photosensitive, reducible silver source;(c) a reducing agent for silver ions;(d) a binder; and(e) a substituted hydroxyphenyl compound which provides antifoggant and print stabilizing properties to the photothermographic element. The substituted hydroxyphenyl compound may be of the formula: ##STR1## wherein: R represents hydrogen, benzoyl, a five or six membered heterocyclic ring system, or a fused ring system; or of the formula ##STR2## wherein: R.sup.1 represents a disubstituted or a trisubstituted s-triazine group, a disubstituted benz-bis-triazole group, a disubstituted benz-bis-thiazole group, a disubstituted benz-bis-oxazole group, and a disubstituted benz-bis-imidazole group.
    • 本发明是一种热显影的光热敏成像元件,其包括承载至少一个感光成像光热敏成像乳剂层的支撑体,其包含:(a)感光卤化银; (b)非感光性可还原银源; (c)银离子还原剂; (d)粘合剂; 和(e)向光热敏成像元件提供防雾剂和印刷稳定性质的取代羟苯基化合物。 取代的羟基苯基化合物可以具有下式:其中:R表示氢,苯甲酰基,五或六元杂环系统或稠环体系; 式中:R 1表示二取代或三取代的三嗪基,二取代苯并双三唑基,二取代苯并双噻唑基,二取代苯并双恶唑基和 二取代的苯 - 双 - 咪唑基。