基本信息:
- 专利标题： PROCESS FOR REDUCING RESIDUALS CONTENT IN VINYL AROMATIC POLYMERS
- 专利标题（中）：方法来减少浪费强度乙烯基芳族聚合物
- 申请号：EP07787527.6 申请日：2007-07-13
- 公开(公告)号：EP2061817B1 公开(公告)日：2011-06-29
- 发明人： ROUSSEL, Thomas-Maurice , VUILLEMIN, Bruno , FAJULA, François
- 申请人： Total Petrochemicals France , Centre National de la Recherche Scientifique (CNRS)
- 申请人地址： 1 rue du Général Leclerc 92800 Puteaux FR
- 专利权人： Total Petrochemicals France,Centre National de la Recherche Scientifique (CNRS)
- 当前专利权人： Total Petrochemicals France,Centre National de la Recherche Scientifique (CNRS)
- 当前专利权人地址： 1 rue du Général Leclerc 92800 Puteaux FR
- 代理机构： Neel, Henry
- 优先权： EP06291223 20060726
- 国际公布： WO2008012217 20080131
- 主分类号： C08F12/00
- IPC分类号： C08F12/00 ; C08F6/00
摘要：
The present invention relates to a process for reducing residuals content in a vinyl aromatic polymer, said residuals comprising essentially unpolymerized vinyl aromatic monomer, wherein the vinyl aromatic polymer in the molten state is brought in contact with a solid in powder capable to catalyze the alkylation of said residual vinyl aromatic monomer on the vinyl aromatic polymer. Advantage of the present invention is a sharp reduction of the unpolymerized vinyl aromatic monomer in the vinyl aromatic polymer without generating a new residual and without inducing a colored vinyl aromatic polymer. The present invention also relates to said vinyl aromatic polymer having a low residuals content.