Organic sol and solid compound based on cerium oxide and an amphiphilic compound and method for preparing same
US6649156B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 2001 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Nov 26, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/2683
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An organic sol containing: cerium oxide particles; an organic liquid phase; and at least one amphiphilic compound chosen from polyoxyethylenated alkyl ethers of carboxylic acids, polyoxyethylenated alkyl ether phosphates, dialkyl sulphosuccinates and quaternary ammonium compounds. A process for preparing the sol is characterized in that the abovementioned amphiphilic compound and the organic liquid phase are mixed together and the cerium oxide particles are then dispersed in the mixture obtained. According to a second variant, a mixture of cerium oxide and of at least one abovementioned amphiphilic compound is formed and the said mixture is then dispersed in the organic liquid phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.