| 摘要 |
In an embodiment, a melt polymerization process comprises melt polymerizing reactants in at least two polymerization units, in the presence of a catalyst composition to form polymerized polycarbonate; adding a quencher composition comprising one or both of a liquid quencher composition and a solid quencher composition; mixing the quencher composition with the polymerized polycarbonate for a period of time of greater than or equal to 5 seconds prior to the addition to the polymerized polycarbonate of any additives having a reactive OH group or reactive ester group; directing the polymerized polycarbonate to an extruder; and directing an additive to the extruder. |
