Patents Examined by Hoa Yan Le
  • Patent number: 4898808
    Abstract: An antistatic silver halide photographic light-sensitive material having a support, provided thereon, at least one light-sensitive layer and at least one non-light-sensitive layer is disclosed. Said at least one non-light-sensitive layer comprises a polymer compound consisting essentially of a repeated structural unit represented by Formula [I], and a formamide compound represented by Formula [II]; ##STR1## wherein Z, and Z.sub.2 represent the group of the atoms necessary to form a six-membered ring with--N.sup..sym. --; R represents a divalent group; R.sub.1 and R.sub.2 represent independently one selected from the group consisting of an alkyl group and an aryl group; R.sub.3 represents a hydrocarbon group; R.sub.5 and R.sub.6 represent independently a hydrogen atom or an alkyl group; X.sub.1.sup..crclbar. and X.sub.2.sup..crclbar. represent an anion; a and l represent an integer of 0 and 1.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: February 6, 1990
    Assignee: Konica Corporation
    Inventors: Noriki Tachibana, Masato Nishizeki, Nobuaki Kagawa