发明申请
US20080139759A1 Process For Continuously Producing (Meth)Acrylic Ester Polymer or Copolymer
有权
用于连续生产(甲基)丙烯酸酯聚合物或共聚物的方法
- 专利标题: Process For Continuously Producing (Meth)Acrylic Ester Polymer or Copolymer
- 专利标题(中): 用于连续生产(甲基)丙烯酸酯聚合物或共聚物的方法
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申请号: US11659964申请日: 2005-08-11
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公开(公告)号: US20080139759A1公开(公告)日: 2008-06-12
- 发明人: Kenichi Hamada , Yoshihiro Morishita , Tatsufumi Watanabe , Kazushige Ishiura
- 申请人: Kenichi Hamada , Yoshihiro Morishita , Tatsufumi Watanabe , Kazushige Ishiura
- 申请人地址: JP Okayama
- 专利权人: Kuraray Co., Ltd.
- 当前专利权人: Kuraray Co., Ltd.
- 当前专利权人地址: JP Okayama
- 优先权: JP2004-236111 20040813
- 国际申请: PCT/JP05/14721 WO 20050811
- 主分类号: C08F118/02
- IPC分类号: C08F118/02 ; C08F2/01
摘要:
A continuous production process, which can allow polymerization to proceed at a milder polymerization temperature and a higher polymerization speed as compared with the conventional method while maintaining a high level of living properties and can produce an (meth)acrylic ester (co)polymer having a narrow molecular weight distribution in a high yield with good productivity. The continuous production process for producing an (meth)acrylic ester (co)polymer comprises the step of continuously feeding an organoaluminum compound-containing polymerization initiator solution and an (meth)acrylic ester into a reactor to continuously obtain a living polymer-containing polymer reaction liquid. The {[molar quantity of methacrylic ester or acrylic ester]/([molar quantity of organoaluminum compound]−[molar quantity of polymerization initiator])} fed into the reactor is regulated to be 15 to 80, and the content of the (meth)acrylic ester in the total feed amount of a polymerization initiator solution and an (meth)acrylic ester fed into the reactor is regulated to not more than 5% by mass.
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