Encapsulated slow release fertilizers
US5089041A · kind A · utility
35Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1990 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Mar 22, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC05G5/37
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A coated product comprising a water soluble core material having a water insoluble polymeric coating encapsulating said core and a process for the production thereof. The encapsulating coating comprising a water-borne, polyvinylidene chloride-based latex composition which provides for the release of the water soluble core material over an extended period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.