Invention Grant
US08541542B2 Process for reducing residuals content in vinyl aromatic polymers
有权
降低乙烯基芳族聚合物残留物含量的方法
- Patent Title: Process for reducing residuals content in vinyl aromatic polymers
- Patent Title (中): 降低乙烯基芳族聚合物残留物含量的方法
-
Application No.: US12374807Application Date: 2007-07-13
-
Publication No.: US08541542B2Publication Date: 2013-09-24
- Inventor: Thomas-Maurice Roussel , Bruno Vuillemin , Francois Fajula
- Applicant: Thomas-Maurice Roussel , Bruno Vuillemin , Francois Fajula
- Applicant Address: BE Seneffe (Feluy)
- Assignee: Total Research & Technology Feluy
- Current Assignee: Total Research & Technology Feluy
- Current Assignee Address: BE Seneffe (Feluy)
- Priority: EP06291223 20060726
- International Application: PCT/EP2007/057259 WO 20070713
- International Announcement: WO2008/012217 WO 20080131
- Main IPC: C07C7/00
- IPC: C07C7/00 ; C07C7/148 ; C07C7/177 ; C08J11/02 ; C08J11/16
Abstract:
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.
Public/Granted literature
- US20100113707A1 Process for Reducing Residuals Content in Vinyl Aromatic Polymers Public/Granted day:2010-05-06
Information query
