Process for post-treating aluminum oxide layers with aqueous sol

Details Process for post-treating aluminum oxide layers with aqueous sol Process for post-treating aluminum oxide layers with aqueous sol

1985-05-15

1987-03-17

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430155, 430157, 430165, 430166, 430169, 430175, 430191, 430276, 430278, 204 17, 204 33, 204 58, G03C 194, G03C 154, G03F 708

Patent

active

046507396

ABSTRACT:
A process for manufacturing materials in the form of sheets, foils or webs comprising chemically, mechanically and/or electrochemically roughened and anodically oxidized aluminum or one of its alloys, wherein the resultant aluminum oxide layers are post-treated with an aqueous solution containing phosphoroxo anions, is performed such that a post-treatment of the aluminum oxide layers is effected by immersion in an aqueous solution containing hexametaphosphate anion. In a preferred embodiment, the aqueous solution is adjusted to a pH of 1 to 5 by addition of an acid. The resulting materials, which have reduced adsorption properties, are preferably employed as support materials for offset printing plates.

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Patent Abstracts of Japan, "Surface Treatment of Tin Plated Steel", vol. 6, No. 149, (Aug. 10, 1982).

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