- 专利标题： COARSE PIGMENT ADDITION AND HIGH SOLIDS SLURRIES FOR HIGHER COATING COLOUR CONCENTRATIONS
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申请号： US15807945申请日： 2017-11-09
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公开(公告)号： US20180066139A1公开(公告)日： 2018-03-08
- 发明人: Guillermo Bluvol , Michael Kässberger , Patrick A.C. Gane
- 申请人： Omya International AG
- 优先权： EP09170864.4 20090921
- 主分类号： C09C1/02
- IPC分类号： C09C1/02 ; C09J11/04 ; D21H19/38 ; C04B14/28 ; C09D17/00 ; C01F11/18
摘要：
The present invention relates to an aqueous slurry comprising natural ground calcium carbonate which has a percentage P5 by weight of particles having a diameter of less than 5.0 μm of from 98.5% to 90%, a percentage P2 by weight of particles having a diameter of less than 2.0 μm of from 96% to 80%, wherein the ratio of P2/P5 is from 0.98 to 0.85, and wherein the slurry has a solids content of more than 78 wt %.
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