Method for encapsulating very finely divided particles
US5945159A · kind A · utility
0Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1996 |
| Grant date | Aug 31, 1999 |
| Priority date | — |
| Expiry date | Dec 12, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J13/043
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is directed to a method for the encapsulation of very finely divided solids within a continuous impervious coating of thermoplastic material. The method is carried out with continuous agitation during which the particles are coated with a plurality of sprayed layers of thermoplastic coating material while maintaining the particles in free-flowing powder consistency during the coating steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.