Sealant compositions and process for sealing aluminum oxide film

Details Sealant compositions and process for sealing aluminum oxide film Sealant compositions and process for sealing aluminum oxide film

1993-07-15

1994-11-08

Brunsman, David

Compositions: coating or plastic

Coating or plastic compositions

O-containing organic compound

562 75, 562 88, C09D 100, C09K 1512

Patent

active

053623177

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 (1954-03-01), Pines et al.
patent: 2739124 (1956-03-01), Otto
patent: 2854477 (1958-09-01), Steinhauer
patent: 3264242 (1966-08-01), Teot
patent: 4531979 (1985-07-01), Bohler et al.
patent: 4588448 (1986-05-01), Baumann et al.

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