Preparation of discrete microdroplets of a high viscosity oil in water
US5084208A · kind A · utility
3Cited by
6References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1991 |
| Grant date | Jan 28, 1992 |
| Priority date | — |
| Expiry date | Jan 7, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/911
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
What is provided herein is a method for preparing discrete microdroplets of a high viscosity oil in water stabilized by in situ polymerization of a water-soluble vinyl monomer. The method comprises dispersing the oil in water containing a surfactant, adding the water-soluble vinyl monomer, preferably vinylpyrrolidone, optionally with a comonomer, and polymerizing the monomer or comonomers in situ such that the oil is stabilized in the resulting polymer solution as discete microdroplets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.