WO2023169963 - METHOD FOR ENCAPSULATING A HYDROPHOBIC COMPOUND, SUSPENSION OF STRUCTURED LIPID PARTICLES ACCORDING TO THIS METHOD, AND USES OF SAID SUSPENSION
National phase entry:
Publication Number
WO/2023/169963
Publication Date
14.09.2023
International Application No.
PCT/EP2023/055480
International Filing Date
03.03.2023
Title **
[English]
METHOD FOR ENCAPSULATING A HYDROPHOBIC COMPOUND, SUSPENSION OF STRUCTURED LIPID PARTICLES ACCORDING TO THIS METHOD, AND USES OF SAID SUSPENSION
[French]
PROCÉDÉ D'ENCAPSULATION D'UN COMPOSÉ HYDROPHOBE, SUSPENSION DE PARTICULES LIPIDIQUES STRUCTURÉES SELON CE PROCÉDÉ, ET UTILISATIONS DE LADITE SUSPENSION
Applicants **
SEDERMA
29 rue du chemin vert
78610 LE PERRAY EN YVELINES, FR
Inventors
FOURNIAL, Arnaud
53 Boulevard Murat
75016 PARIS, FR
PLATCHECK RAFFIN, Renata
120/25 Rua Attilio Bilibio
91530-008 PORTO ALEGRE, BR
ROSSINI KOPP, Cristieli
1001 Avenida Arroio do Meio
Capão da Canoa
95555-000 RIO GRANDE DO SUL, BR
Priority Data
FR2201971
07.03.2022
FR
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
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International Searching Authority |
EPO
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1071 | |
| EPO | Filing, Examination | 4850 | |
| Japan | Filing | 591 | |
| South Korea | Filing | 575 | |
| USA | Filing, Examination | 3310 |
Total: 10397 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
A mixture is formed comprising an aqueous phase, a waxy phase, and an oily phase containing at least one hydrophobic compound, such as retinol, and a system of three surfactants, a hot emulsion of said mixture is thereafter formed, then a reduction in the size of the particles of said emulsion to substantially a submicron size is carried out, and finally according to a cooling is performed to form at room temperature a suspension of structured particles. An aqueous suspension of lipid particles structured substantially into a waxy shell and an oily core encapsulating the compound is obtained, having a satisfactory encapsulation rate and improved long-term stability, for use in particular in the cosmetics industry.[French]
L'invention concerne la formation d'un mélange comprenant une phase aqueuse, une phase cireuse et une phase huileuse contenant au moins un composé hydrophobe, tel que le rétinol, et un système de trois tensioactifs, la formation d'une émulsion à chaud de ce mélange, la réduction de la granulométrie de cette émulsion jusqu'à une taille sensiblement submicronique, et enfin le refroidissement pour former à température ambiante une suspension de particules structurées. Une suspension aqueuse de particules lipidiques structurées sensiblement en une coquille cireuse et un noyau huileux encapsulant le composé est obtenue, avec un taux d'encapsulation satisfaisant et une stabilité à long terme améliorée, pour une utilisation en particulier dans l'industrie des produits cosmétiques.