Microparticulate material and method of making such material
US3959457A · kind A · utility
82Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1973 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Feb 8, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2989
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
In a finely dispersed emulsion of a water immiscible solution of an organic polyfunctional Lewis base and an aqueous solution of a partially hydrophilic, partially lipophilic polyfunctional Lewis acid, a reaction occurs at the phase interface to produce a novel microparticulate material comprised of the reaction product of the Lewis acid and the Lewis base. The maximum particle size dimensions of the microparticulate material depends on the degree of dispersion in the emulsified reaction mixture and may be as low as 2 microns or smaller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.