OIL AGENT FOR METAL PROCESSING

摘要

PROBLEM TO BE SOLVED: To provide an oil agent for reducing a problem in a synthetic resin material contacted with a metal processed article. SOLUTION: The oil agent for metal processing comprises an unsaturated fatty acid ester and a maleic unsaturated fatty acid ester. An acid value of the oil agent is 1 (mgKOH/g) or more, preferably 60 (mgKOH/g) or less, further preferably 30 (mgKOH/g) or less and most preferably 6-10 (mgKOH/g). COPYRIGHT: (C)2006,JPO&NCIPI