公开(公告)号：EP2221327A1

公开(公告)日：2010-08-25

申请号：EP08865151.8

申请日：2008-12-03

申请人： Handa, Hiroshi ,  Abe, Masanori ,  Hatakeyama, Mamoru ,  Sakamoto, Satoshi ,  Nishio, Kosuke ,  Masaike, Yuka ,  Kishi, Hiroshi

发明人： Handa, Hiroshi ,  Abe, Masanori ,  Hatakeyama, Mamoru ,  Sakamoto, Satoshi ,  Nishio, Kosuke ,  Masaike, Yuka ,  Kishi, Hiroshi

IPC分类号： C08F292/00

CPC分类号： C09C1/42 ,  B82Y30/00 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/84 ,  C08F2/38 ,  C08F2/44 ,  C08F292/00 ,  C08F293/005 ,  C08F2438/03 ,  C08J5/005 ,  C09C3/12 ,  C08F220/10 ,  C08F212/08

摘要： An object of the present invention is to provide a polymer coated magnetic fine polymer by coating an inorganic fine particle with a thin polymer layer under precise control of a polymerization reaction and a method for preparing the same. Onto a surface of the inorganic fine particle the iniferter is fixed and grafted chains are formed on the inorganic fine particle by a living radical polymerization using the iniferter as an initiator which is defined by the following chemical formula:

(wherein X is a hydrophilic atomic group being capable of binding to a surface of the inorganic fine particle, R1 and R2 are each independently selected from a mono-valent hydrocarbyl group which is formed by removing one hydrogen atom from hydrocarbon.)

摘要翻译： 本发明的目的在于提供一种聚合物涂覆的磁性微粒聚合物，其通过在聚合反应的精确控制下涂覆具有薄聚合物层的无机细颗粒及其制备方法。 在无机细颗粒的表面上，引发剂是固定的，并且通过使用引发剂作为引发剂的活性自由基聚合在无机细颗粒上形成接枝链，所述引发剂由以下化学式定义：（其中X是亲水性原子团 能够结合无机细颗粒的表面，R 1和R 2各自独立地选自通过从烃除去一个氢原子而形成的一价烃基。）