Encapsulated slow release fertilizers
US5186732A · kind A · utility
39Cited by
0References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1991 |
| Grant date | Feb 16, 1993 |
| Priority date | — |
| Expiry date | Nov 12, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2989
- 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.