METHOD OF PREVENTING POLYMERIZATION OF METHACRYLIC ACID
PURPOSE:To provide a method of inhibiting the polymerization of methacrylic acid in order to obtain a methacrylic acid product of high purity by avoiding addition of foreign substances to this acid. CONSTITUTION:In order to prevent methacrylic acid from polymerizing during the processes such as puri...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PURPOSE:To provide a method of inhibiting the polymerization of methacrylic acid in order to obtain a methacrylic acid product of high purity by avoiding addition of foreign substances to this acid. CONSTITUTION:In order to prevent methacrylic acid from polymerizing during the processes such as purification, storage or transportation, or esterification reaction, a trinuclear complex of manganese methacrylate having a trivalent manganese ion, expressed by the formula, [Mn3(mu-O) (mu-MAA)6(H2O)3]X (Mn is a trivalent manganese atom, MAA is an methacrylcarboxylate anion, X is chloride ion, nitrate ion or methacrylcarboxylate anion), is added. |
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