公开(公告)号：EP2604247A1

公开(公告)日：2013-06-19

申请号：EP11009866.2

申请日：2011-12-15

申请人： Dentsply DeTrey GmbH

发明人： Stelzig, Simon Dr., ,  Kempter, Jörg ,  Noerpel, Stephanie ,  Klee, Joachim E. Prof. Dr., ,  Facher, Andreas Dr., ,  Walz, Uwe ,  Weber, Christoph Dr.,

IPC分类号： A61K6/083 ,  A61K6/02

CPC分类号： C09D143/04 ,  A61K6/0008 ,  A61K6/0076 ,  A61K6/0085 ,  A61K6/0091 ,  A61K6/0215 ,  A61K6/024 ,  A61K6/025 ,  A61K6/083 ,  B01J2/16 ,  B05D7/24 ,  C01P2004/61 ,  C03C14/008 ,  C03C17/00 ,  C03C17/30 ,  C03C2214/12 ,  C08K3/40 ,  C08K5/5419 ,  C09C1/40 ,  C09C3/00 ,  C09C3/006 ,  C09C3/045 ,  C09C3/08 ,  C09C3/12 ,  C08L33/00

摘要： A process for the preparation of composite filler particles, comprising:
(a) coating a particulate filler having a median particle size (D50) of from 1 to 1200 nm with a coating composition containing a film-forming agent forming a coating layer on the surface of the particulate filler, said coating layer displaying reactive groups on the surface of the coating layer, said reactive groups being selected from addition polymerizable groups and step-growth polymerizable groups, thereby forming a coated particulate filler; subsequently or concurrently
(b) agglomerating the coated particulate filler, optionally in the presence of a further crosslinking agent and optionally in the presence of a further particulate filler not displaying reactive groups, for providing a granulation of the coated particulate filler wherein the granulation contains the coated particulate filler particles and the optional further particulate filler particles separated from and connected to each other by at least one coating layer, whereby the at least one coating layer may be crosslinked by crosslinking groups obtained by reacting the reactive groups and optionally a further crosslinking agent;
(c) optionally milling, classifying and/or sieving the granulation of the coated particulate filler; and
(d) optionally further crosslinking the granulation of the coated particulate filler; for providing composite filler particles having a median particle size (D50) of from 1 to 70 µm, wherein reactive groups are transformed into crosslinking groups obtained by reacting reactive groups and optionally a further crosslinking agent, and wherein the particulate filler is the main component by volume of the composite filler particles.

摘要翻译： 一种用于制备复合填料颗粒的方法，包括：（a）用含有在表面上形成涂层的成膜剂的涂料组合物涂布中值粒径（D50）为1-1200nm的颗粒填料 所述涂层在所述涂层表面上显示反应性基团，所述反应性基团选自可加聚的基团和可逐步生长的可聚合基团，从而形成涂覆的颗粒状填料; 随后或同时（b）任选地在另外的交联剂存在下和任选地在另外的没有显示反应性基团的颗粒状填料的存在下附聚涂覆的颗粒状填料，以提供涂覆的颗粒状填料的造粒，其中造粒剂含有 涂覆的颗粒状填料颗粒和任选的另外的颗粒状填料颗粒通过至少一个涂层彼此分离并且彼此连接，由此所述至少一个涂层可以通过交联基团交联，所述交联基团通过反应性基团和任选的另外的交联剂 ; （c）任选研磨，分级和/或筛分涂覆的颗粒状填料的颗粒; 和（d）任选地进一步交联涂布的颗粒状填料的颗粒; 用于提供具有1至70μm的中值粒径（D50）的复合填料颗粒，其中反应性基团被转化为通过反应性基团和任选的另外的交联剂反应获得的交联基团，并且其中所述颗粒填料为 复合填料颗粒的体积。