Methods for the production of microcapsules using functionalized isocyanate
US5011885A · kind A · utility
5Cited by
15References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1989 |
| Grant date | Apr 30, 1991 |
| Priority date | — |
| Expiry date | Oct 27, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31551
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a method for preparing microcapsules which comprises: PA1 preparing an aqueous dispersion or emulsion of a hydrophobic oily core material containing a polyvalent isocyanate, a polyvalent isothiocyanate, or an adduct thereof, having an anionic moiety; and PA1 forming capsule walls around the droplets of said oily core material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.