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Patent Searching and Data


Title:
SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL
Document Type and Number:
Japanese Patent JPH11218872
Kind Code:
A
Abstract:

To obtain a silver halide photographic sensitive material high in sensitivity and superior in storage stability by incorporating a compound having plural styryl bases combined through covalent bonds.

This photographic sensitive material contains a compound having ≥2 styryl bases combined through covalent bonds and represented by formula I: A1-L-A2 in which each of A1 and A2 has a styryl base structure; and L is a simple bond or a divalent bonding group; or formula I is selected from groups of formula II and the like, and in formula II, each of Z1 and Z2 is an atomic group necessary to form a 5- or 6-membered N-containing hetero ring; each of L1-L8 is a methine group; each of V1 and V2 is a univalent bonding group; each of l1 and l2 is 0, 1, 2, 3, or 4; each of p1 and p2 is 0 or 1; each of n1 and n2 is 0, 1, 2, or 3; each of R1 and R2 is an H atom or an alkyl group or the like; M1 is a charge balancing counter ion; m1 is a number of 0-10 necessary to neutraliz the molecular charge; and La is same as L in formula I.


Inventors:
Hioki, Takanori
Application Number:
JP1998000023666
Publication Date:
August 10, 1999
Filing Date:
February 04, 1998
Export Citation:
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Assignee:
FUJI PHOTO FILM CO LTD
International Classes:
G03C1/24; C09B23/00; (IPC1-7): G03C1/24; C09B23/00