发明名称 |
Cationically stabilized slurries of calcined kaolin clay |
摘要 |
A method for preparing high solids suspensions of calcined clay which are stable without the necessity of adding a colloidal thickening agent and have minimal dilatancy. A calcined kaolin clay pigment, substantially free of anionic dispersant, is dispersed in water by addition of alkali to provide a neutral to mildly alkaline aqueous slurry. To the dispersed slurry, a water-soluble cationic organic polymer is added in minor amounts, to partially flocculate and thicken the slurry, thereby stabilizing the slurry against sedimentation.
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申请公布号 |
US5537934(A) |
申请公布日期 |
1996.07.23 |
申请号 |
US19940325724 |
申请日期 |
1994.10.19 |
申请人 |
ENGELHARD CORPORATION |
发明人 |
JENSEN, AMY S.;SUITCH, PAUL R.;BEHL, SANJAY |
分类号 |
C09D17/00;(IPC1-7):C04B14/10 |
主分类号 |
C09D17/00 |
代理机构 |
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