Mesoporous silica particles
US8449856B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2011 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Sep 23, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to (1) hollow silica particles including an outer shell portion having a mesoporous structure with an average pore size of from 1 to 10 nm, wherein the silica particles have an average particle diameter of from 0.05 to 10 μm, and 80% or more of the whole silica particles have a particle diameter falling within the range of ±30% of the average particle diameter; (2) composite silica particles including silica particles which include an outer shell portion having a mesoporous structure with an average pore size of from 1 to 10 nm, and have a BET specific surface area of 100 m2/g or more, and a hydrophobic organic compound or a polymeric organic compound incorporated inside of the silica particles; and a process for producing the hollow silica particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.