Emulsion manufacturing process
US5938581A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1998 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Apr 6, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/929
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a process for preparing a secondary emulsion consisting of droplets of a phase A, dispersed in a phase B, A being immiscible in B, starting with a polydispersed primary emulsion of identical formulation and consisting of droplets of the said phase A dispersed in the said phase B, the droplets of the secondary emulsion having a diameter in all cases which is less than the diameter of the droplets of the primary emulsion, characterized in that the starting primary emulsion is viscoelastic and in that the said starting primary emulsion is subjected to a controlled shear such that the same maximum shear is applied to the entire emulsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.