Raspberry amido amines and betaines as a delivery system for natural antioxidants
US7078545B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2003 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Dec 24, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C233/36
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to raspberry seed oil derivatives derived by the reaction of dimethyl amino propyl amine and cold pressed raspberry seed oil. This intermediate is subsequently reacted with sodium monochloroacetic acid to make a raspberry betaine. The choice of cold pressed raspberry seed oil as a raw material in the preparation of the compounds of the present invention is critical, since it has been found that the cold pressed raspberry seed oil contains antioxidants, antimicrobial compounds and which when reacted with a DMAPA result in products that deliver said actives to the skin and hair, resulting in protection of the skin and hair from environmental factors such as acid rain, ozone attack and UV degradation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.