Method for the production of scent capsules with improved surfactant stability
US10876081B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2016 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Apr 29, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J13/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a method for producing scent capsules with improved surfactant stability, comprising the following steps: (a) providing a scent composition containing at least one scent which has at least one functional group that can form an acid group by means of oxidation or hydrolysis, and (b) encapsulating the scent mixture, characterised in that a scent composition is used that has an acid value of no more than 5 mg KOH/g immediately before encapsulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.