Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1990-09-25
1991-07-23
Powell, William A.
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
156656, 252 792, 252 794, B44C 122, C23F 100, C09K 1300
Patent
active
050340930
ABSTRACT:
The present invention is directed to a chemical etching composition for etching metals or metallic alloys. The composition includes a solution of hydrochloric acid, phosphoric acid, ethylene glycol and an oxidizing agent. The etching composition is particularly useful for etching metal surfaces in preparation for subsequent fluorescent penetrant inspection.
REFERENCES:
patent: 4944807 (1990-07-01), Sova
patent: 4970015 (1990-11-01), Garcia
Foster Robert E.
O'Tousa Joseph E.
Thomas Clark S.
Broad, Jr. Robert L.
Powell William A.
Seemann Jerry L.
The United States of America as represented by the Administrator
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