发明名称 |
High chloride tabular grain emulsions and processes for their preparation |
摘要 |
Photographically useful radiation-sensitive high chloride {100} tabular grain emulsions containing iodide are disclosed. A high proportion of the {100} tabular grains contain crystal lattice dislocations extending inwardly from their peripheral edges. The dislocations are created by introducing elemental iodine into a high chloride {100} tabular grain emulsion, reducing the iodine to iodide, displacing chloride ions at the peripheral edges of the tabular grains with iodide ions, and then continuing growth of the high chloride {100} tabular grains. The dislocations in the peripheral and, particularly, corner regions of the tabular grains increase their sensitivity.
|
申请公布号 |
US5885762(A) |
申请公布日期 |
1999.03.23 |
申请号 |
US19970955867 |
申请日期 |
1997.10.21 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
MASKASKY, JOE E.;SCACCIA, VICTOR P.;CHEN, SAMUEL |
分类号 |
G03C1/015;G03C1/005;G03C1/035;(IPC1-7):G03C1/035 |
主分类号 |
G03C1/015 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|