发明名称 |
COARSE GROUND CALCIUM CARBONATE WITH HIGH STEEPNESS |
摘要 |
A composition including ground calcium carbonate may have a coarse particle size and high steepness factor. Some compositions may include ground calcium carbonate and an additive, such as kaolin. A coating including ground calcium carbonate may have a course particle size and high steepness factor, and a carrier suspending the ground calcium carbonate. The ground calcium carbonate may have a mean particle size (d50) greater than about 2.4 μm. The ground calcium carbonate may also have a steepness factor greater than about 30. Also described are products including a substrate and a coating applied to the substrate, where the coating includes ground calcium carbonate having a coarse particle size and high steepness factor. |
申请公布号 |
US2016032532(A1) |
申请公布日期 |
2016.02.04 |
申请号 |
US201414777150 |
申请日期 |
2014.03.11 |
申请人 |
IMERYS PIGMENTS, INC. |
发明人 |
JONES PHIL;SMITH MIKEL DEAN;PRUETT ROBERT |
分类号 |
D21H19/14;C01F11/18;C08K3/34;D21H19/12;C09D1/00;C08K3/26 |
主分类号 |
D21H19/14 |
代理机构 |
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代理人 |
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主权项 |
1. A composition comprising ground calcium carbonate having a d50 of at least about 2.4 μm and a steepness factor of at least about 30. |
地址 |
Roswell GA US |