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1. 发明授权

US06242546B1 Process for producing vinyl polymers 失效
标题翻译：制备乙烯基聚合物的方法
公开(公告)号：US06242546B1
公开(公告)日：2001-06-05
申请号：US09026745
申请日：1998-02-20
申请人： Toru Nakai , Takesi Asada
发明人： Toru Nakai , Takesi Asada
IPC分类号： C08F238
CPC分类号： C08F4/32 , C08F2/38
摘要： The present invention provides a process for producing a vinyl polymer characterized in that, in a radical polymerization of a vinyl monomer, a substituted hydroxylamine represented by a general formula: in which R1 and R2 represent hydrogen, a (substituted) aliphatic hydrocarbon group having one or more carbon atom(s) or an aromatic hydrocarbon group) and/or general formula: (in which R3 and R4 represent a (substituted) aliphatic hydrocarbon group having one or more carbon atom(s) is added. A radically polymerized vinyl polymer having a high molecular weight and a restrained molecular weight distribution can be obtained by the process of the present invention, even under a polymerization condition at a high temperature. The present invention provides, therefore, a process enabling to produce vinyl polymers which promise to have practical properties such as appearance, mechanical properties and heat resistance useful as materials for various moldings and coatings. Thus, the industrial and technical value of the present invention is extremely high.
摘要翻译：本发明提供一种乙烯基聚合物的制造方法，其特征在于，在乙烯基单体的自由基聚合中，由以下通式表示的取代羟胺：其中R 1和R 2表示氢，具有一个（取代的）脂族烃基或更多的碳原子或芳族烃基）和/或通式（其中R 3和R 4表示具有一个或多个碳原子的（取代的）脂族烃基）。自由基聚合的乙烯基聚合物即使在高温聚合条件下，也可以通过本发明的方法获得具有高分子量和约束分子量分布的方法，因此本发明提供一种能够生产具有希望具有的乙烯基聚合物的方法实用性能如外观，机械性能和耐热性可用作各种模塑和涂料的材料本发明的技术价值非常高。

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