Coating processes – Immersion or partial immersion – Metal base
Patent
1993-12-08
1994-12-20
Brunsman, David
Coating processes
Immersion or partial immersion
Metal base
427436, 10628723, 501153, C23C 2266
Patent
active
053744551
ABSTRACT:
Aluminum oxide sealant compositions, concentrates, and processes employing the same are described which comprise an alkaline earth metal salt and certain sulfonated compounds. Unexpected improvements in seal quality are obtained using the compositions of the invention, and in the substantial absence of smut formation. Advantageously, the aqueous sealant compositions of the invention may be cobalt and nickel-free, can be prepared from tap water, and can be employed at temperatures below the boiling point.
REFERENCES:
patent: 2671815 (1954-05-01), Pines et al.
patent: 2739124 (1956-05-01), Otto
patent: 2854477 (1958-09-01), Steinhauer
patent: 3264242 (1966-08-01), Teat
patent: 4531979 (1985-07-01), Bohler et al.
patent: 4588448 (1986-05-01), Baumann et al.
Patel Pinakin
Ranieri Richard L.
Brunsman David
Furman Diane E.
Honor Robert S.
Sandoz Ltd.
Vila Richard E.
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