Microcapsules containing suspensions of biologically active compounds and ultraviolet protectant
US5846554A · kind A · utility
7Cited by
22References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1995 |
| Grant date | Dec 8, 1998 |
| Priority date | — |
| Expiry date | Apr 27, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J13/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Microcapsules containing a biologically active material which is sensitive to ultraviolet light are prepared which contain an ultraviolet light protectant selected from titanium dioxide, zinc oxide and mixtures thereof, suspended and thoroughly dispersed in a liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.