| 发明名称 |
MOVIE FILM CLEANING SOLVENT |
| 摘要 |
This invention relates to a solvent system and process for cleaning photographic film, especially cellulose triacetate polymer movie film. The solvent system comprises n-propyl bromide and an alkyl bromide in which the alkyl group contains 4 to 7 carbon atoms.
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| 申请公布号 |
CA2247613(A1) |
申请公布日期 |
1997.09.04 |
| 申请号 |
CA19972247613 |
申请日期 |
1997.02.26 |
| 申请人 |
ALBEMARLE CORPORATION |
发明人 |
SHUBKIN, RONALD L.;LIIMATTA, ERIC W.;AZARNIA, FARAH D.;LEE, BURNELL |
| 分类号 |
C11D7/28;C11D7/30;C11D7/50;G03C11/06;(IPC1-7):C11D7/50 |
主分类号 |
C11D7/28 |
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