Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1996-11-08
1997-12-16
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...
510175, 510255, 510257, 510259, 510475, 510421, 510493, 134 2, 134 40, 134 41, 134 42, C11D 708, C11D 750, C09K 1308, B08B 308
Patent
active
056985037
ABSTRACT:
An aqueous and acidic stripping and cleaning composition is provided which contains a polyhydric alcohol, ammonium fluoride, dimethylsulfoxide and water. The pH of the composition is greater than about 4 but less than 7. Also provided is a method of stripping and cleaning utilizing the compositions of the invention. Optionally, the composition may contain a phosphate buffer.
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Michelotti Francis W.
Peters Darryl W.
Ward Irl E.
Ashland Inc.
Lezdey John
McGinty Douglas J.
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