| 发明名称 |
ALPHA-AL2O3 FLAKES |
| 摘要 |
The present invention relates to α-Al2O3 flakes prepared by a process comprising (1) preparation of an aqueous solution of at least one water-soluble and/or insoluble aluminum salt which optionally contains at least one sulfate compound, (2) adding a basic solution and optionally at least one dopant to the aluminum salt solution (1), (3) drying of the obtained gel, followed by calcination to obtain Al2 03 flakes and alkali salts in a molten salt, and (4) removal of the water soluble parts of the calcined molten salt obtained in step (3). |
| 申请公布号 |
US2017105915(A1) |
申请公布日期 |
2017.04.20 |
| 申请号 |
US201515312451 |
申请日期 |
2015.05.04 |
| 申请人 |
Merck Patent GmbH |
发明人 |
SUZUKI Ryuta;WATANABE Yukitaka;SCHOEN Sabine;MATSUDA Noriyuki |
| 分类号 |
A61K8/26;A61Q19/00;A61Q1/10;C09C1/00;A61Q3/02;A61Q1/02;C09C1/40;A61K8/02;A61Q1/06 |
主分类号 |
A61K8/26 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Al2O3 flakes prepared by a process comprising the following steps:
(1) preparation of an aqueous solution of at least one water-soluble and/or insoluble aluminum salt which optionally contains at least one sulfate compound, (2) adding a basic solution and optionally at least one dopant to the aluminum salt solution (1), (3) drying of the obtained gel, followed by calcination to obtain Al2O3 flakes and alkali salts in a molten salt, (4) removal of the water soluble parts of the calcined molten salt obtained in step (3). |
| 地址 |
Darmstadt DE |
