| 发明名称 |
Defoamer composition and use thereof |
| 摘要 |
A defoamer comprised of silica having hydrophobic surfaces dispersed in a water insoluble hydrophobic organic liquid, wherein the silica has a surface area of no greater than 0.1 m2/g and the hydrophobic silica comprises in excess of 25 wt. percent of the composition.
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| 申请公布号 |
US4377493(A) |
申请公布日期 |
1983.03.22 |
| 申请号 |
US19810277630 |
申请日期 |
1981.06.26 |
| 申请人 |
DREW CHEMICAL CORPORATION |
发明人 |
BOYLAN, FRANCIS J.;PORTER, CLEMMON;BRUNO, OLGA D. |
| 分类号 |
B01D19/04;(IPC1-7):B01D19/02 |
主分类号 |
B01D19/04 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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