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2. 发明授权

US09492805B2 Initiated chemical vapor deposition of vinyl polymers for the encapsulation of particles 有权
标题翻译：乙烯基聚合物的起始化学气相沉积用于颗粒的包封
公开(公告)号：US09492805B2
公开(公告)日：2016-11-15
申请号：US11589683
申请日：2006-10-30
申请人： Karen K. Gleason , Kenneth K. S. Lau
发明人： Karen K. Gleason , Kenneth K. S. Lau
IPC分类号： B01J13/14 , B01J13/04 , A61K9/20 , A61K9/50 , C23C16/44 , C23C16/452
CPC分类号： B01J13/04 , A61K9/2077 , A61K9/5026 , B01J13/14 , C23C16/4417 , C23C16/452
摘要： Described herein are all-dry encapsulation methods that enable well-defined polymers to be applied around particles. One aspect of the invention relates to a method of coating a particle, comprising the steps of: placing said particle in a vessel at a pressure; rotating said vessel at a rotating speed for a period of time; mixing together a first gaseous monomer at a first flow rate, and a gaseous initiator at a second flow rate, thereby forming a mixture; introducing said mixture into said vessel via a vapor feedline; heating said mixture, thereby forming a reactive mixture; contacting said particle with said reactive mixture; thereby forming a polymer coating on said particle. The methods may be modified forms of initiated chemical vapor deposition using a thermally-initiated radical polymerization to create conformal coatings around individual particles while avoiding agglomeration. Particle surfaces may be coated with a range of functional groups.
摘要翻译：本文描述的是全干封装方法，使得能够将明确定义的聚合物施加在颗粒周围。本发明的一个方面涉及一种涂覆颗粒的方法，包括以下步骤：在压力下将所述颗粒置于容器中; 以一段时间的旋转速度旋转所述容器; 以第一流速将第一气态单体和第二流速的气态引发剂混合在一起，从而形成混合物; 通过蒸气供给线将所述混合物引入所述容器; 加热所述混合物，从而形成反应性混合物; 使所述颗粒与所述反应性混合物接触; 从而在所述颗粒上形成聚合物涂层。所述方法可以是使用热引发的自由基聚合来引发的化学气相沉积的修饰形式，以在避免团聚的同时产生围绕单个颗粒的保形涂层。颗粒表面可以涂覆一系列官能团。

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