Controlled release fertilizer with biopolymer coating and process for making same
US9266787B2 · kind B2 · utility
3Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2013 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Jul 22, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC05G5/37
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A controlled release fertilizer including a fertilizer granule, having an outer surface, a coating of biopolymer composition on the outer surface of the fertilizer granule, wherein the biopolymer composition includes at least one biopolymer, and a process of making the controlled release fertilizer including the steps of screening fertilizer granules to a preselected granule size, heating a biopolymer to become substantially fluid, and applying the biopolymer onto the surface of the fertilizer granule to produce a coating on the granule of a predetermined amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.