发明名称 |
Photographic reversal bath concentrate and method of preparing same |
摘要 |
A photographic reversal bath concentrate is formulated in such a manner as to avoid precipitates while including new biocides and excluding propionic acid. The concentrate is prepared by adding stannous ion nucleating agent to a solution of an organic phosphonic or phosphinic acid chelating agent, followed by addition of a quaternary ammonium compound as the sole biocide at a concentration of at least about 1 g/l. The quaternary ammonium compound has a molecular weight of from about 175 to about 440.
|
申请公布号 |
US5736302(A) |
申请公布日期 |
1998.04.07 |
申请号 |
US19970820323 |
申请日期 |
1997.03.12 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
BUONGIORNE, JEAN M.;HAIGHT, MICHAEL J. |
分类号 |
G03C5/50;G03C7/30;(IPC1-7):G03C7/407 |
主分类号 |
G03C5/50 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|