Patent · US Active

Encapsulated essential oils

US9079152B2 · kind B2 · utility

10Cited by

22References

18Claims

0Family size

Assignee

BEN GURION UNIVERSITY OF THE NEGEV RESEARCH AND DEVELOPMENT AUTHORITY · IL

Inventors

Arie Markus · Beer Sheva, IL
Charles Linder · Rehovot, IL

Key dates

Filing date	May 6, 2004
Grant date	Jul 14, 2015
Priority date	—
Expiry date	Sep 29, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2984
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention provides a process for the preparation of essential oil microcapsules comprising dissolving a di- or polyisocyanate into an essential oil, emulsifying the resulting mixture in an aqueous solution containing a di- or polyamine, and or a di or polyhydroxy compound to effect encapsulation of said essential oil through interfacial polymerization, whereby there is formed a polyurea and/or polyurethane film around the essential oil droplets which film enhances the stability of said essential oil, reduces its evaporation rate and controls its release rate when applied to a substrate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.