申请人:Donck C. Jan
公开号:US20050192414A1
公开(公告)日:2005-09-01
Tubular reactor apparatus and processes are provided for improved polymerization including using chain transfer agents and multiple monomer feeds spaced lengthwise along the tubular reactor providing high conversions of monomer into polymer. The invention also relates to polymers made from such a tubular reactor apparatus and processes including those polymers having a low haze value, a density over 0.92 g/cm
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and/or having terminal carbonyl groups. The apparatus and methods uncouple or reduce the dependency between the monomer concentration and transfer agent concentration. The uncoupling in other embodiments may also be varied leading to multiple desirable effects.
本发明提供了管式反应器设备和工艺,用于改进聚合,包括使用链转移剂和沿管式反应器纵向间隔的多个单体进料,提供单体到聚合物的高转化率。本发明还涉及用这种管式反应器设备和工艺制作的聚合物,包括雾度值低、密度超过 0.92 克/厘米 3 的聚合物。
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和/或具有末端羰基的聚合物。这些设备和方法可解除或减少单体浓度与转移剂浓度之间的依赖关系。其他实施例中的解偶联也可以变化,从而产生多种理想效果。