发明授权
- 专利标题： Inhibiting polymerization of vinyl aromatic monomers
- 专利标题（中）： 抑制乙烯基芳族单体的聚合
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申请号： US48822申请日： 1998-03-26
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公开(公告)号： US6117276A公开(公告)日： 2000-09-12
- 发明人: Glen T. Cunkle , Thomas F. Thompson , Volker H. von Ahn , Roland A. E. Winter
- 申请人： Glen T. Cunkle , Thomas F. Thompson , Volker H. von Ahn , Roland A. E. Winter
- 申请人地址： TX Sugar Land
- 专利权人： Nalco/Exxon Energy Chemicals, L.P.
- 当前专利权人： Nalco/Exxon Energy Chemicals, L.P.
- 当前专利权人地址： TX Sugar Land
- 主分类号： C08F2/40
- IPC分类号： C08F2/40 ; C07B63/04 ; C07C7/20 ; C09K15/30 ; B01D3/34
摘要：
When a nitroxyl compound is heated in an oxygen-free atmosphere with a vinyl aromatic monomer at 50-140.degree. C. for up to 60 days, it forms an activated inhibitor mixture which is superior to the nitroxyl compound itself in preventing the premature polymerization of a vinyl aromatic monomer during its processing and purification.
公开/授权文献
- US5358195A Reel braking device for a video cassette recorder 公开/授权日：1994-10-25
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