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    • 4. 发明授权
    • Method for producing a (meth)acrylate
    • (甲基)丙烯酸酯的制造方法
    • US08859804B2
    • 2014-10-14
    • US13148206
    • 2010-02-04
    • Ryuichi AnsaiHiroyuki NogamiKuniyoshi Ogura
    • Ryuichi AnsaiHiroyuki NogamiKuniyoshi Ogura
    • C07C67/08C07C67/54C07C69/54
    • C07C67/08C07C67/54C07C69/54
    • Disclosed is a method for producing a (meth)acrylate ester wherein a high purity (meth)acrylate ester is obtained with a high yield, with a reduced loss of (meth)acrylic acid anhydride. In the method, (meth)acrylic acid is recovered with a high yield, and the (meth)acrylate ester is purified easily. Specifically disclosed is a method for producing a (meth)acrylate ester which comprises: (1) a step of producing (meth)acrylic acid anhydride by reacting a specific fatty acid anhydride and (meth)acrylic acid, while removing a by-produced fatty acid; (2) a step of obtaining a (meth)acrylate ester by reacting an alcohol and unpurified (meth)acrylic acid anhydride obtained in step (1) preferably at a temperature not less than 90° C.; and (3) a step of recovering (meth)acrylic acid by distillation preferably at a temperature not less than 90° C. The method may also comprise a step of heating or distilling the reaction liquid obtained in step (2) at a temperature not less than 90° C.
    • 公开了一种制备(甲基)丙烯酸酯的方法,其中以(Y)丙烯酸酐的损失减少,高产率获得高纯度(甲基)丙烯酸酯。 在该方法中,以高收率回收(甲基)丙烯酸,容易地纯化(甲基)丙烯酸酯。 具体公开了一种(甲基)丙烯酸酯的制造方法,该方法包括:(1)通过使特定的脂肪酸酐和(甲基)丙烯酸反应,同时除去副产的脂肪 酸; (2)优选在不低于90℃的温度下使醇与步骤(1)中得到的未纯化的(甲基)丙烯酸酐反应得到(甲基)丙烯酸酯的步骤; 和(3)优选在不低于90℃的温度下通过蒸馏回收(甲基)丙烯酸的步骤。该方法还可以包括在步骤(2)中获得的反应液体在不是 小于90℃
    • 6. 发明申请
    • METHOD FOR PRODUCING A (METH)ACRYLATE
    • 制备(甲基)丙烯酸酯的方法
    • US20110301379A1
    • 2011-12-08
    • US13148206
    • 2010-02-04
    • Ryuichi AnsaiHiroyuki NogamiKuniyoshi Ogura
    • Ryuichi AnsaiHiroyuki NogamiKuniyoshi Ogura
    • C07C67/08
    • C07C67/08C07C67/54C07C69/54
    • Disclosed is a method for producing a (meth)acrylate ester wherein a high purity (meth)acrylate ester is obtained with a high yield, with a reduced loss of (meth)acrylic acid anhydride. In the method, (meth)acrylic acid is recovered with a high yield, and the (meth)acrylate ester is purified easily. Specifically disclosed is a method for producing a (meth)acrylate ester which comprises: (1) a step of producing (meth)acrylic acid anhydride by reacting a specific fatty acid anhydride and (meth)acrylic acid, while removing a by-produced fatty acid; (2) a step of obtaining a (meth)acrylate ester by reacting an alcohol and unpurified (meth)acrylic acid anhydride obtained in step (1) preferably at a temperature not less than 90° C.; and (3) a step of recovering (meth)acrylic acid by distillation preferably at a temperature not less than 90° C. The method may also comprise a step of heating or distilling the reaction liquid obtained in step (2) at a temperature not less than 90° C.
    • 公开了一种制备(甲基)丙烯酸酯的方法,其中以(Y)丙烯酸酐的损失减少,高产率获得高纯度(甲基)丙烯酸酯。 在该方法中,以高收率回收(甲基)丙烯酸,容易地纯化(甲基)丙烯酸酯。 具体公开了一种(甲基)丙烯酸酯的制造方法,该方法包括:(1)通过使特定的脂肪酸酐和(甲基)丙烯酸反应,同时除去副产的脂肪 酸; (2)优选在不低于90℃的温度下使醇与步骤(1)中得到的未纯化的(甲基)丙烯酸酐反应得到(甲基)丙烯酸酯的步骤; 和(3)优选在不低于90℃的温度下通过蒸馏回收(甲基)丙烯酸的步骤。该方法还可以包括在步骤(2)中获得的反应液体在不是 小于90℃