4.
    发明专利
    未知

    公开(公告)号:DE2855932A1

    公开(公告)日:1979-07-05

    申请号:DE2855932

    申请日:1978-12-23

    Abstract: A heat developable photosensitive material comprising: (a) an organic silver salt oxidizing agent; (b) a halogen molecule or an organic haloamide compound; (c) a reducing agent for silver ion; and (d) a nitrogen-containing organic base whose pKa of the conjugate acid ranges from 0.5 to 10.0 and the nitrogen-containing organic base having, in its molecule, no acidic proton or a nitrogen-containing organic base whose pKa of its conjugate acid ranges from 0.5 to 10.0 and the nitrogen-containing organic base having, in its molecule, an acidic proton whose pKa is more than 12.

    OPTICAL RECORDING MATERIALS METHOD FOR PREPARING THE SAME AND OPTICAL CARDS HAVING THE SAME

    公开(公告)号:CA1336312C

    公开(公告)日:1995-07-18

    申请号:CA610789

    申请日:1989-09-08

    Abstract: An optical recording material comprising: a thin film or membrane of a hydrophobic binding agent; and metallic particles having a diameter of 0.003 .mu.m to 3 .mu.m dispersed in said film or membrane wherein the density of said metallic particles is higher near at least one surface of said film or membrane as compared with another portion of said film or membrane, each metallic particle having a nucleus and an outer coating, said outer coating consisting of at least one metal having a melting point of 250 .degree.C to 1800 .degree.C and a thermal conductivity at 0 .degree.C of 5 W?m-1?K-1 to 450 W?m-1?K-1 wherein the reflectivity of the surface of said film or membrane where the density of said metallic particle is higher is 10 to 90 %., a method for preparing the optical recording material and an optical card containing the optical recording material.

    9.
    发明专利
    未知

    公开(公告)号:DE2830704A1

    公开(公告)日:1979-02-01

    申请号:DE2830704

    申请日:1978-07-12

    Abstract: A dry image forming material comprising: (a) a non-photosensitive organic silver salt oxidizing agent; (b) a reducing agent for silver ion; and (c) a compound of the formula, wherein R1 and R2 independently represent an aryl group or a substituted aryl group; and X represents a chlorine atom, a bromine atom or an iodine atom.

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