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Process for Reducing Residuals Content in Vinyl Aromatic Polymers
Process for Reducing Residuals Content in Vinyl Aromatic Polymers
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机译:减少乙烯基芳族聚合物中残留物含量的方法
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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.
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