Rust removal process using removable coatings of maleic acid copolymers
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United States of America Patent
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May 14, 1985
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N/A
app pub date -
May 22, 1984
filing date -
Dec 29, 1982
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Expired
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Abstract
Rust is removed from metal surfaces by applying a coating of an aqueous solution of a copolymer of maleic acid and monomer of the formula CH.sub.2 .dbd.CHR wherein R represents H, CH.sub.3, OR.sup.1 or OCOR.sup.1 and R.sup.1 represents CH.sub.3 or CH.sub.2 CH.sub.3. The rust becomes incorporated into the coating during drying and the coating detaches itself from the metal surface for easy removal.
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