Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2000-06-13
2001-10-16
Kopec, Mark (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S175000, C510S176000, C510S182000, C510S225000, C510S233000, C510S252000, C510S271000, C510S272000, C510S401000, C510S432000
Reexamination Certificate
active
06303554
ABSTRACT:
SUMMARY OF THE INVENTION
According to the present invention, we provide a water-free solution for cleaning a plastic surface, said solution comprising potassium hydroxide (KOH) dissolved in a compound selected from the group consisting of alcohols.
Further, according to the present invention, we provide a method for cleaning and etching a plastic surface, the method comprising the step of: treating the plastic surface with a solution comprising potassium hydroxide (KOH) dissolved in a compound selected from the group consisting of alcohols.
REFERENCES:
patent: 4740562 (1988-04-01), Menke et al.
Casati Donato
Mauri Fabio
Passagrilli Silvano
Boyer Charles
Connolly Bove Lodge & Hutz
Fraley Lawrence R.
International Business Machines - Corporation
Kopec Mark
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