Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1996-10-31
1998-12-15
McGinty, Douglas J.
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
134 2, 134 40, 134 42, 510255, 510258, B08B 308, C11D 724, C11D 726, C11D 760
Patent
active
058496807
ABSTRACT:
The specification describes a cleaning process for electronic devices and assemblies such as printed wiring boards. In the cleaning process deterioration of a terpene based cleaning solution, as evidenced by yellowing, is prevented using a copper chelating additive.
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Lucent Technologies - Inc.
McGinty Douglas J.
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