| 摘要 |
PURPOSE:To provide a safe and inexpensive rust preventive agent for metals having sustained powerful rust preventive power by contg. the partial ester of a polybasic salt such as alkenyl succinic acid and alkenyl maleic acid and alcohol or the soluble salt thereof as an effective component. CONSTITUTION:This rust preventive agent is constituted by contg. the partial ester of the polybasic acid of the alkenyl succinic acid or alkenyl maleic acid of 4-9C such as butinyl succinic acid or butinyl maleic acid and the satd. or unsatd. alcohol of 2-8C such as ethanol or >=1 kinds of the soluble salts of the alkaline metals, amine, etc. thereof as the effective component. The rust preventive agent is effective for metals and alloys such as steel, cast iron, copper brass and phosphor bronze. The rust preventive agent has a good sustaining effect and high rust preventive power when used at about 5-50,000ppm concn. Said agent is safe and inexpensive without having problems in pollution or sanitation such as water pollution and carcinogenic property. |
