C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
204/11.5, 204/21
C25D 11/18 (2006.01) B41N 3/03 (2006.01) C25D 11/24 (2006.01)
Patent
CA 1225961
ABSTRACT OF THE DISCLOSURE A process is disclosed for manufacturing sheets, foils, or strips which involves chemically, mechanically, and/or electrochemically roughening and anodically oxidizing aluminum or aluminum alloy surfaces, followed by two post-treatment steps. In the first step, the metal surface is treated with an aqueous alkali metal silicate solution; thereafter, the surface is treated with an aqueous solution comprising alkaline earth metal ions. The materials produced according to this process are particularly used as supports for offset-printing plates.
434745
Pliefke Engelbert
Usbeck Gerhard
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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