| 摘要 |
PURPOSE: A method and storage are to inhibit the coloring, precipitation and polymerization of alkylamino(meta)acrylate. CONSTITUTION: For handling alkylamino(meta)acrylate in contact with stainless steel, the stainless steel is to indicate Ra value specified in JIS B0601 as less than 1.6 m at the surface, and the gas portion of the container is to have the moisture of 0.1% or molecular oxygen concentration of less than 10v% in excess of 0. Under the above conditions, the concentration of (meta) acrylic acid in alkylamino(meta)acrylic acid in alkylamino(meta)acrylate may be maintained at less than 0.1w% even at 40°C to inhibit polymerization, precipitation and coloring of the compound.
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