Coagulation of particles from emulsions by the insitu formation of a coagulating agent
US7285585B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2003 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Mar 17, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J3/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
This invention provides processes for isolating particles from an emulsion including the steps of: (a) forming an emulsion having a solid component having a population of particles, a liquid component, and a first ionic forming compound, wherein the presence of the first ionic forming compound in the emulsion does not result in the coagulation of the population of particles contained therein; (b) obtaining a composition having a second ionic forming compound which, by itself, is not sufficient to result in the coagulation of the population of particles contained in the emulsion; and (c) mixing the emulsion and the composition having the second ionic compound such that the first ionic forming compound reacts with the second ionic forming compound to form a coagulating agent which results in the coagulation of the population of particles. The invention also provides processes for preparing a polymer matrix system using the aforementioned process for isolating particles from an emulsion. In these processes, the plastic matrix system is prepared by adding, to a plastic resin, the emulsion and the composition having the second ionic forming compound, such that the first ionic forming co…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.