Process for preparing polyurea microcapsules
US8426353B2 · kind B2 · utility
17Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2009 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Oct 19, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J13/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a process for producing perfume-containing microcapsules with a polyurea wall that can be used in home or personal care products, as well as to the microcapsules themselves and consumer products that include or incorporate these microcapsules. The process of the invention uses a particular colloidal stabilizer in the form of an aqueous solution that includes defined proportions of particular polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.