Microencapsulation process
US4272398A · kind A · utility
193Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1979 |
| Grant date | Jun 9, 1981 |
| Priority date | — |
| Expiry date | Jun 15, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2989
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Pesticides, insect growth regulators and other substances are encapsulated by dissolving the substance to be encapsulated and a biodegradable polymer in a suitable organic solvent, dispersing the solution in an aqueous medium and stirring until the solvent evaporates to form a matrix of the substance in the polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.