发明授权
- 专利标题: Method for producing a (meth)acrylate
- 专利标题(中): (甲基)丙烯酸酯的制造方法
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申请号: US13148206申请日: 2010-02-04
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公开(公告)号: US08859804B2公开(公告)日: 2014-10-14
- 发明人: Ryuichi Ansai , Hiroyuki Nogami , Kuniyoshi Ogura
- 申请人: Ryuichi Ansai , Hiroyuki Nogami , Kuniyoshi Ogura
- 申请人地址: JP Tokyo
- 专利权人: Mitsubishi Rayon Co., Ltd.
- 当前专利权人: Mitsubishi Rayon Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP2009-024835 20090205
- 国际申请: PCT/JP2010/051611 WO 20100204
- 国际公布: WO2010/090258 WO 20100812
- 主分类号: C07C67/08
- IPC分类号: C07C67/08 ; C07C67/54 ; C07C69/54
摘要:
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/授权文献
- US20110301379A1 METHOD FOR PRODUCING A (METH)ACRYLATE 公开/授权日:2011-12-08
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