| 摘要 |
PURPOSE: Provided is a carrier composition which contains no boron or produces no sludge, and is thus used for coating a metallic material in cold drawing. CONSTITUTION: The composition contains an ingredient (A) which is an alkali metal sulfate, an ingredient (B) which is an alkali metal silicate, and an ingredient (C) which is a water-soluble or water-dispersible polymer, within the range of weight ratios of (B) to (A) being 0.01 to 1 and (C) to ((A)+(B)) being 0.01 to 0.5. The water-soluble or water-dispersible polymer can be one or more selected from the group consisting of polyurethane resins, polycarbonates, water-soluble polyolefins, and polyethers.
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