发明名称 |
Process for the preparation of halogenated (meth)acrylic esters and poly (meth) arcylates obtained with said (meth)acrylic esters |
摘要 |
<p>The present invention is directed to a process for the preparation of (meth)acrylates of halogenated alcohols by direct esterification of said alcohols with (meth)acrylic acid (chloride) wherein at least 2,6-substituted pyridine derivative is used as a polymerization inhibitor at room temperature or lower. Suitable at least 2,6-substituted pyridine derivatives are 2,6-lutidine, 2,4,6-collidine or 2,6-di-tert.butyl-4-methyl pyridine. With the halogenated (meth)acrylate esters prepared with the process according to the invention, very pure homo- and copolymers can be prepared, resulting in polymers having a low optical loss of 0.1 dB/cm or lower at 1300 nm and lower than 0.4 dB/cm at 1550 nm.</p> |
申请公布号 |
EP0824096(A2) |
申请公布日期 |
1998.02.18 |
申请号 |
EP19970202331 |
申请日期 |
1997.07.29 |
申请人 |
AKZO NOBEL N.V. |
发明人 |
HOFSTRAAT, JOHANNES WILLEM;WAKSELMAN, CLAUDE;LEQUESNE, CHRISTELLE;WIERSUM, ULFERT ELLE;BLAZEJEWSKI, JEAN CLAUDE |
分类号 |
C07D213/68;C07C67/14;C07D213/64;C08F220/22;G02B6/00;(IPC1-7):C07C67/14;C07C69/653 |
主分类号 |
C07D213/68 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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