Microencapsulation product and process
US5051306A · kind A · utility
2Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1990 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | May 21, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2987
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An active principle microencapsulated in an envelope formed by interfacial polymerization of two non-miscible phases A and B, organic phase A comprising at least one water insoluble active principle which do not react with each other, a polyfunctional monomer a and a solvent for the active principle and aqueous phase B comprising a polyfunctional monomber b and a catalyst which allows a progressive diffusion of the active principle and protects the same from the environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.