| 摘要 |
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 CH2=CHR wherein R represents H, CH3, OR1 or OCOR1 and R1 represents CH3 or CH2CH3. 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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