Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1999-01-13
2000-09-05
Skane, Christine
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
134 40, 134 42, 510412, B08B 308, C11D 730, C11D 750
Patent
active
06114293&
ABSTRACT:
A process for cleaning movie film, and especially cellulose acetate based polymer film, without causing film damage, comprises immersing the film into a cleaning solvent composition which comprises one or more halogenated hydrobromocarbons having from 1 to 3 carbons, from 1 to 3 bromine atoms and at least one chlorine or fluorine atom, such as 3-bromo-1,1,1-trifluoropropane, removing the film from the solvent and drying the film.
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Beaver Phillip R.
Boone James E.
Goins Dixie E.
Liimatta Eric W.
Shelton David L.
Albemarle Corporation
Skane Christine
Spielman, Jr. E. E.
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