| 摘要 |
PROBLEM TO BE SOLVED: To provide an economically excellent method for providing acryloxy-γ-butyrolactones such as GBLMA, BMGBL and the like in a high recovery rate. SOLUTION: The acryloxy-γ-butyrolactone is distilled by adding an N-oxyl compound as a polymerization inhibitor. COPYRIGHT: (C)2007,JPO&INPIT
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