发明公开
EP1152287A2 Asymmetric silver salt dimers and imaging compositions, materials and methods using same 有权
不对称Silbersalzdimere和成像的组合物,其中使用这些二聚体的材料和方法

  • 专利标题: Asymmetric silver salt dimers and imaging compositions, materials and methods using same
  • 专利标题(中): 不对称Silbersalzdimere和成像的组合物,其中使用这些二聚体的材料和方法
  • 申请号: EP01201548.3
    申请日: 2001-04-27
  • 公开(公告)号: EP1152287A2
    公开(公告)日: 2001-11-07
  • 发明人: Whitcomb, David R.
  • 申请人: EASTMAN KODAK COMPANY
  • 申请人地址: 343 State Street Rochester, New York 14650 US
  • 专利权人: EASTMAN KODAK COMPANY
  • 当前专利权人: EASTMAN KODAK COMPANY
  • 当前专利权人地址: 343 State Street Rochester, New York 14650 US
  • 代理机构: Nunney, Ronald Frederick Adolphe
  • 优先权: US201857P 20000504
  • 主分类号: G03C1/498
  • IPC分类号: G03C1/498 C07F1/00
Asymmetric silver salt dimers and imaging compositions, materials and methods using same
摘要:
A non-photosensitive silver dimer compound comprises two different silver salts, provided that when the two different silver salts comprise straight-chain, saturated hydrocarbon groups as the silver coordinating ligands, those ligands differ by at least 6 carbon atoms. Many of these silver dimer compounds can be represented by the following Structure I:
wherein each E is independently oxygen, sulfur, nitrogen, selenium, or tellurium, R and R' are different alkyl groups, aryl groups, aromatic heterocyclic groups, or halo atoms, provided that when E is oxygen, R and R' are both straight-chain, saturated hydrocarbon groups, those hydrocarbon groups differ from each other by at least 6 carbon atoms. These silver dimer compounds are useful in thermally-developable imaging materials including thermographic and photothermographic materials.
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