| 摘要 |
<p>PCT No. PCT/US96/18554 Sec. 371 Date Jun. 1, 1998 Sec. 102(e) Date Jun. 1, 1998 PCT Filed Nov. 27, 1996 PCT Pub. No. WO97/20903 PCT Pub. Date Jun. 12, 1997An 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 general: CH3(CH2)aO(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 general formula (I) does so when x is at least 8, and then drying the thus-treated cans.</p> |
