专利检索 ap:("EASTMAN KODAK COMPANY") AND inv:"Haye, Shirleyanne E., c/o Eastman Kodak Company" 第 1 页

1.

发明公开
Calcium ion stable photographic color developing composition and method of use 有权
标题翻译：对钙离子供他们使用稳定照相彩色显影剂组合物和方法

公开(公告)号：EP1099979A3

公开(公告)日：2002-08-21

申请号：EP00203821.4

申请日：2000-11-01

申请人： EASTMAN KODAK COMPANY

发明人： Haye, Shirleyanne E., c/o Eastman Kodak Company , Huston, Janet M., c/o Eastman Kodak Company , Darmon, Charles M., c/o Eastman Kodak Company , Christ, Jr., Charles S., c/o Eastman Kodak Company , Schwartz, Paul A., c/o Eastman Kodak Company , Henry, William G., c/o Eastman Kodak Company

IPC分类号： G03C7/413 , G03C5/305

CPC分类号： G03C7/413 , G03C5/266 , G03C5/3053 , G03C7/00 , G03C7/421 , G03C2200/21

摘要： A color developing composition is stable in the presence of calcium ion because of the presence of two specific types of polyphosphonic acid sequestering agents. The composition also comprises a color developing agent in free base form and an antioxidant for the color developing agent. The mixture of sequestering agents includes a polyaminopolyphosphonic acid and either a hydroxyalkylidenediphosphonic acid or morpholinomethanediphosphonic acid. The composition can be used to provide images in various color photographic silver halide materials.