C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
101/61, 204/11.5
C25D 7/00 (2006.01) B41N 3/03 (2006.01)
Patent
CA 1107675
ABSTRACT OF THE DISCLOSURE In the production of lithographic printing plates, the method of anodizing the surface of an aluminum web substrate which comprises subjecting said web to an anodization treatment in an electrolyte comprised of a combination of sulfuric acid and phosphoric acid, and thereafter applying a lithographically acceptable photosensitive coating to the web to obtain a presensitized lithographic printing plate.
271991
Chu Simon L.
Golda Eugene
Osler Hoskin & Harcourt Llp
Polychrome Corporation
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