发明名称 |
Suspensions of Silicate Shell Microcapsules |
摘要 |
Aqueous suspensions of silicate shell microcapsules having a volume fraction of microcapsules of at least 30% that are gel free at 50° C. for at least one month and processes for obtaining them are disclosed. A process for improving the stability of an aqueous suspension of silicate shell microcapsules is disclosed which involves reducing non-volatile solid content of the continuous phase of the aqueous suspension of the silicate shell microcapsules to less than 0.3 weight percent. A process is also disclosed for improving the stability of an aqueous suspension of silicate shell microcapsules by adding a colloidal silicate sequestering agent to an aqueous suspension of silicate shell microcapsules and colloidal silicate particles.
|
申请公布号 |
US2011158923(A1) |
申请公布日期 |
2011.06.30 |
申请号 |
US200913062551 |
申请日期 |
2009.09.10 |
申请人 |
GALEONE FABRIZIO S;MARTEAUX LEON;ZIMMERMAN BRETT |
发明人 |
GALEONE FABRIZIO S.;MARTEAUX LEON;ZIMMERMAN BRETT |
分类号 |
A61K8/89;A61Q17/04;C08K3/34;C09K3/00 |
主分类号 |
A61K8/89 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|