- 专利标题: Kaolin pigment products
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申请号: US10518338申请日: 2003-08-15
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公开(公告)号: US20060096501A1公开(公告)日: 2006-05-11
- 发明人: David Light , Christopher Golley , Ernest Gay , Milton Constantin
- 申请人: David Light , Christopher Golley , Ernest Gay , Milton Constantin
- 优先权: GB0219256.5 20020816
- 国际申请: PCT/US03/23267 WO 20030815
- 主分类号: C04B14/04
- IPC分类号: C04B14/04
摘要:
A pigment product for use in a coating composition to provide a gloss coating on paper, the pigment product comprising a processed particulate kaolin having a particle size distribution such that at least about 80% by weight of the particles have an equivalent spherical diameter less than about 2 p,m and in the range of from about 10% to about 20% by weight of the particles have an equivalent spherical diameter less than about 0.25 wm, the particles have a shape factor in the range of from about 20 to about 36 and the particles have a particle steepness in the range of about greater than about 35, more preferably in the range of about 35 to about 40, and wherein the kaolin is derived from a secondary kaolin source.
公开/授权文献
- US07597755B2 Kaolin pigment products 公开/授权日:2009-10-06
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