公开(公告)号：US20070287758A1

公开(公告)日：2007-12-13

申请号：US11666090

申请日：2005-10-24

申请人： Myriam Ricaud ,  Karine Cavalier ,  Roberto Rosa ,  Francis Larche

发明人： Myriam Ricaud ,  Karine Cavalier ,  Roberto Rosa ,  Francis Larche

IPC分类号： C01F11/18

CPC分类号： B82Y30/00 ,  C01F11/18 ,  C01F11/183 ,  C01P2004/50 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12

摘要： Aqueous suspension of particles of precipitated calcium carbonate meeting the following requirements: dP≦D50≦q.dP where dP is the mean diameter of the particles (nm), measured by the Lea-Nurse method, D50 is the diameter of the particles (nm) for which 50% of the distribution (measured by the sedimentation technique) is smaller and 50% of the distribution is greater, q is a number between 1.0 and 20.0, and comprising an additive chosen from nonionic compounds comprising more than one carbon atom, the content of which, with respect to the calcium carbonate, is greater than 0.4% by weight.

摘要翻译： 沉淀碳酸钙颗粒的水悬浮液，其满足以下要求：其中d P为P 是通过Lea-Nurse法测量的颗粒的平均直径（nm），D 50是分布的50％（nm），其分布的50％ 通过沉降技术）较小，分布的50％更大，q为1.0至20.0之间的数，并且包含添加剂，其选自包含多于一个碳原子的非离子化合物，其含量相对于钙 碳酸盐，大于0.4重量％。