Invention Grant
- Patent Title: Organic compounds
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Application No.: US16968284Application Date: 2019-03-06
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Publication No.: US11351096B2Publication Date: 2022-06-07
- Inventor: Sarah El-Habnouni , Emmanuel Aussant , Vladica Bocokic , Sandra Guinebretiere , Florent Robert
- Applicant: GIVAUDAN SA
- Applicant Address: CH Vernier
- Assignee: GIVAUDAN SA
- Current Assignee: GIVAUDAN SA
- Current Assignee Address: CH Vernier
- Agency: Norris McLaughlin PA
- Priority: GB1804038 20180314
- International Application: PCT/EP2019/055484 WO 20190306
- International Announcement: WO2019/174978 WO 20190919
- Main IPC: A61K8/11
- IPC: A61K8/11 ; A61K8/06 ; A61K8/84 ; A61Q13/00

Abstract:
Disclosed is a process for preparing an encapsulated fragrance composition. The composition comprises a plurality of microcapsules dispersed in a dispersion medium. The microcapsules comprise a core and a shell around the core. The process comprises the consecutive steps of: a) Providing an aqueous phase (I) comprising at least one anionically modified polyisocyanate (A); b) Providing an organic phase (II) comprising at least one fragrance ingredient; c) Mixing the aqueous phase (I) and the an organic phase (II) to obtain a mixture; d) Forming an emulsion comprising droplets of the organic phase (II) in the continuous aqueous phase (I); e) Adding at least one polyfunctional amine; f) Effecting formation of shells around the droplets formed in step d), to obtain a dispersion of microcapsules. The process comprises the additional step of adding a polyisocyanate (B), which is different from polyisocyanate (A).
Public/Granted literature
- US20210030639A1 IMPROVEMENTS IN OR RELATING TO ORGANIC COMPOUNDS Public/Granted day:2021-02-04
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