Utilization of ethoxylated fatty acid esters as self-emulsifiable compounds
US6103770A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1997 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | Jul 9, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/44
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to the use of ethoxylated fatty acid esters self-emulsifiable compounds particularly useful for the preparation of phytosanitary treatment products or as drugs for veterinary or human use. According to the invention, said fatty acid esters comprise a total number of ethylene oxide molecules such that the HLB value (hydrophilic-lipophilic balance) of said compounds is comprised between about 4 and about 10, preferably between about 5 and about 9. Said ethoxylated fatty acid esters form in an original way self-emulsifiable components without requiring any other surfactant, and they are biodegradable and capable of dissolving active principles which are little or non water-soluble.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.