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    • 3. 发明授权
    • Phosphoric acid ester surface modifiers for silver carboxylate nanoparticles
    • 用于银羧酸盐纳米粒子的磷酸酯表面改性剂
    • US06387611B2
    • 2002-05-14
    • US09764665
    • 2001-01-18
    • Mark LelentalDavid A. DickinsonJames L. WakleyMichael W. OremPeter J. Ghyzel
    • Mark LelentalDavid A. DickinsonJames L. WakleyMichael W. OremPeter J. Ghyzel
    • G03C1498
    • G03C1/498G03C1/49809G03C1/4989
    • There is disclosed an oxidation-reduction imaging forming composition comprising an aqueous based dispersion of (i) nanoparticulate silver carboxylate particles having on the surface of the particles a surface modifier which is a phosphoric acid ester and (ii) an organic reducing agent. In particular, the surface modifiers can be mixtures of mono- and di-esters of orthophosphoric acid and hydroxyl-terminated, oxyethylated long-chain alcohols or oxyethylated alkyl phenols or derivatives thereof. Also disclosed are various compositions including the dispersions including oxidation-reduction imaging forming compositions, thermographic elements and photothermographic compositions and elements. The preferred carboxylate is a silver salt of a long chain fatty acid such as silver behenate. A media milling method and a controlled precipitation method of making the dispersions are also disclosed
    • 公开了一种氧化还原成像组合物,其包含(i)纳米颗粒状羧酸银颗粒的水性分散体,其在颗粒表面上具有作为磷酸酯的表面改性剂和(ii)有机还原剂。 特别地,表面改性剂可以是正磷酸和羟基封端的羟乙基化长链醇或羟乙基化烷基酚或其衍生物的单酯和二酯的混合物。 还公开了包括包括氧化还原成像组合物,热成像元件和光热成像组合物和元素的分散体的各种组合物。 优选的羧酸酯是长链脂肪酸的银盐,例如山嵛酸银。 还公开了制备分散体的介质研磨方法和受控沉淀法
    • 9. 发明授权
    • Imaging materials comprising electrically conductive polymer particle layers
    • 成像材料包括导电聚合物颗粒层
    • US06709808B2
    • 2004-03-23
    • US10139684
    • 2002-05-06
    • Mark LelentalGary M. MosehauerRoger J. OwersJames L. Wakley
    • Mark LelentalGary M. MosehauerRoger J. OwersJames L. Wakley
    • G03C183
    • B41M5/44G03C1/7614G03C1/89G03F7/093G03G7/00G03G7/002G03G7/0026G03G7/0053
    • Image-forming materials including photographic, thermographic, and thermally-developable imaging materials include one or more transparent electrically conductive, non-charging layers to provide antistatic control on one or both sides of subbed or unsubbed supports. The electrically conductive, non-charging layers comprise colloidal, electrically conductive polymer particles that can be dispersed in a film-forming binder in an amount to provide from about 10 to about 90 volume % of polymer particles. Particularly useful polymer particles include pyrrole-containing, thiophene-containing, and aniline-containing polymers. The particles generally exhibit a packed powder specific resistivity of 105 ohm-cm or less and generally have a mean diameter of 0.5 &mgr;m or less. The electrically conductive, non-charging layers generally exhibit a surface electrical resistivity of less than 1×1012 ohm per square.
    • 包括照相,热成像和热显影成像材料的图像形成材料包括一个或多个透明导电的不带电层,以在副床或未支撑的支撑件的一侧或两侧上提供抗静电控制。 导电的不带电层包括胶体的导电聚合物颗粒,其可分散在成膜粘合剂中,其量为约10至约90体积%的聚合物颗粒。 特别有用的聚合物颗粒包括含吡咯,含噻吩和含苯胺的聚合物。 颗粒通常表现出10 -5欧姆 - 厘米或更小的填充粉末电阻率,并且通常具有0.5μm或更小的平均直径。 导电的非充电层通常表现出小于1×10 12欧姆/平方的表面电阻率。