Methods and systems for coating granular substrates
US11142488B2 · kind B2 · utility
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17References
16Claims
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Key dates
| Filing date | Feb 9, 2012 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Feb 9, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC05G5/37
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for producing a coated particle to provide controlled release characteristics. In this process the mixing of the substrate and coating is made in a mixing device and that mixture is then transferred to a reactor vessel different from the mixing device where the chemical curing of the coating over the particles takes place. Several layers of coating can be applied by repeating the steps and it can be run in a fully continuous manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.