Method of forming encapsulated toner particles
US4016099A · kind A · utility
53Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1972 |
| Grant date | Apr 5, 1977 |
| Priority date | — |
| Expiry date | Mar 27, 1992 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2987
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method is provided for forming encapsulated particles comprising forming a dispersion of core material in a solution of wall material in a solvent; drowning said dispersion in at least one liquid which is miscible with the solvent and in which at least the wall material is substantially insoluble, to effect phase-separation of said wall material, whereby said wall material deposits about said core material forming a dilute dispersion of particles comprising said core material encapsulated with said wall material in said liquid, and recovering said encapsulated particles from said liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.