| 摘要 |
THE PRESENT INVENTION IS AN IMPROVEMENT IN A SOLID STATE DEVOLATILIZATION FINISHING PROCESS FOR A WET FEED MATERIAL OF SYNDIOTACTIC VINYL AROMATIC POLYMER CONTAINING VOLATILES, INCLUDING AT LEAST ONE VINYL AROMATIC MONOMER, WHEREIN THE IMPROVEMENT COMPRISES: @RAPIDLY HEATING THE WET FEED MATERIAL, SUCH THAT THE TEMPERATURE OF THE WET FEED MATERIAL IS INCREASED AT A RATE OF AT LEAST 10°C/MIN., TO A TEMPERATURE BETWEEN 150°C AND THE MELTING POINT TEMPERATURE OF THE SYNDIOTACTIC VINYL AROMATIC POLYMER, WHILE CONCURRENTLY REMOVING EVOLVED VOLATILES.
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