| 摘要 |
PCT No. PCT/US91/08405 Sec. 371 Date May 21, 1993 Sec. 102(e) Date May 21, 1993 PCT Filed Nov. 14, 1991.A superior protective prepainting treatment for tin plated steel surfaces, particularly DI cans, may be achieved by contacting the surface with an aqueous liquid composition containing from 1 to 30 g/L of phosphate ions, from 0.1 to 5 g/L of condensed phosphate ions, from 0.5 to 5 g/L of reducing agent, and from 0.1 to 20 g/L of dissolved solids of a water soluble aminated poly{vinyl phenol} resin. |
