| 发明名称 |
PHOTOGRAPHIC DEVELOPER POWDERS OBTAINABLE BY FREEZE-DRYING |
| 摘要 |
A storage stable and rapid dissolving packaged powder developer of uniform composition is produced by preparing developer or developer precursor solutions and removing solvent to provide powder for packaging in plastic impervious to the atmosphere. Preferably, the solvent is removed by freeze-drying or spray-drying. |
| 申请公布号 |
AU7947187(A) |
申请公布日期 |
1988.04.14 |
| 申请号 |
AU19870079471 |
申请日期 |
1987.10.08 |
| 申请人 |
DU PONT DE NEMOURS, E.I., & CO., |
发明人 |
DANIEL RAY FRUGE;PETER KEVIN SYSAK |
| 分类号 |
G03C5/30;G03C5/26 |
主分类号 |
G03C5/30 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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