公开(公告)号：EP3119729A4

公开(公告)日：2018-01-03

申请号：EP15755094

申请日：2015-02-25

申请人： IMERYS USA INC

发明人： LYONS ANTHONY V ,  WYGANT ROGER ,  PANFIL DANIEL J ,  BOOTHBY CHRIS ,  JONES PHIL

IPC分类号： C04B14/04 ,  C09C1/42 ,  D21H17/68

CPC分类号： C09D17/004 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/82 ,  C01P2006/22 ,  C09C1/42 ,  C09D1/00 ,  C09D7/1283 ,  C09D7/1291 ,  C09D7/69 ,  C09D7/70 ,  D21H17/68 ,  D21H19/40

摘要： An inorganic particulate suspension may include a first kaolin having a shape factor of at least about 70, and a second kaolin having a shape factor less than or equal to about 20. The first kaolin and the second kaolin form a kaolin composition, which may have a content ratio of the first kaolin to the second kaolin ranging from about 90:10 to about 50:50. An inorganic particulate suspension may include a kaolin composition having a shape factor ranging from about 55 to about 75, wherein at least about 70% to about 90% by weight of the particles of the kaolin composition have an equivalent spherical diameter less than 2 microns. The suspension may have a Hercules viscosity ranging from about 600 rpm to about 700 rpm at 18.0 dyne using an “A” bob, and the suspension may have a solids content ranging from about 55% to about 75% solids.