Cleaning with limonene, BHT, and acetylacetonate

Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...

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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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