| 发明名称 | Coarse pigment addition and high solids slurries for higher coating colour concentrations | ||
| 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 %. | ||
| 申请公布号 | US9574305(B2) | 申请公布日期 | 2017.02.21 |
| 申请号 | US201013496960 | 申请日期 | 2010.09.21 |
| 申请人 | Omya International AG | 发明人 | Bluvol Guillermo;Kässberger Michael;Gane Patrick A. C. |
| 分类号 | C08K3/26;D21H17/67;C01F11/18;C09C1/02;D21H17/68;D21H19/38;D21H19/40;D21H21/52 | 主分类号 | C08K3/26 |
| 代理机构 | Amster, Rothstein & Ebenstein LLP | 代理人 | Amster, Rothstein & Ebenstein LLP |
| 主权项 | 1. An aqueous slurry comprising a mineral material consisting of 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% and 1.5 to 10% by weight of particles having a diameter greater than 5.0 μm, a percentage P2 by weight of particles having a diameter of less than 2.0 μm of from 96% to 80% and 4.0 to 20% by weight of particles having a diameter greater than 2.0 μm, wherein the ratio of P2/P5 is from 0.98 to 0.85, wherein the slurry has a solids content of more than 78 wt %, and wherein the natural ground calcium carbonate is the only inorganic material which is present in the aqueous slurry. | ||
| 地址 | Oftringen CH | ||