Method for encapsulating oils in an aqueous medium with hase polymer emulsions, products obtained, and uses thereof
US8524260B2 · kind B2 · utility
0Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2008 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Aug 10, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/286
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention consists of a method for manufacturing an aqueous formulation containing at least one oil, and comprising the steps of mixing at least one associative polymer, one oil, and water, encapsulating the oil by increasing the pH to a value greater than 8, potentially precipitating the mixture by reducing the pH to a value less than 6, and potentially isolating the resulting particles by removing the water. The aqueous formulations, as with the aqueous dispersions, and the resulting solid particles constitute other objects of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.