Solid microspheres for agriculturally active compounds and process for their production
US5639710A · kind A · utility
40Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1994 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Jul 6, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N53/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Microspheres containing an agriculturally active material are produced by mixing a liquid phase containing the agriculturally active material and optionally an emulsifying agent and an aqueous phase containing polyvinyl alcohol and adding a material selected from clays, silicas, starch, and starch derivatives, followed by spray drying.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.