| 摘要 |
<p>An excellent lubricant and surface conditioner layer on formed metal surfaces, particularly aluminum cans that have been previously provided with a chromium oxide conversion coating, can be formed by contacting the cans with an aqueous lubricant and surface conditioner forming composition that contains at least one oxa acid or methyl ester thereof corresponding to the general formula (I): CH3(CH2)nO(CH2CH2O)xCH2C(O)OR, where each of n and x, which may be the same or different, is a positive integer and R represents H or CH3 and at least 20 weight % of the total content corresponding to the general formula (I) does so when x is at least 8, and then drying the thus-treated cans.</p> |
