| 摘要 |
An improved process for the production of hydroxy alkyl acrylates or hydroxy alkyl methacrylates which comprises adding an alkylene oxide to a solution of acrylic or methacrylic acid, at least 0.05% by weight of acid of chromium trioxide catalyst and at least 5% by weight based on acid of hydroxyalkyl acrylate or hydroxyalkyl methacrylate.
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