Oxidatively stable long-chain ethyl ester emollients
US6287579A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1999 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Jun 11, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/522
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compositions or fluids comprising esters of long-chain organic molecules derived from natural oils, particularly plant, bean, seed and nut oils can be provided with increased oxygen stability by their combination with mixtures of particular classes of antioxidants, particularly combinations of at least one tocopherol and a supplemental ingredient selected from the class consisting of kojic acid, malic acid and ascorbic acid. The stabilization combination is particularly effective in combination with esters of long-chain organic molecules having less than 20% methylene interrupted polyunsaturation. An emollient composition is described that comprises a long-chain ethyl ester in combination with an oxidation stabilizing systems comprising at least one tocopherol and at least one supplemental additive selected from the group consisting of kojic acid, malic acid, and ascorbic acid. The long-chain ethyl ester may comprise an ethyl ester of a natural oil. The long-chain ethyl ester may have a percent methylene interrupted unsaturation of less than 20%, less than 15%, less than 10%, or less than 5%. The emollient composition may have the at least one supplemental additive present in an am…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.