Fluorinated Gemini surfactants
US7164041B1 · kind B1 · utility
17Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2005 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Nov 17, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C311/09
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A gemini surfactant represented by the formula:wherein: each Rf independently represents perfluorobutyl or perfluoropropyl; each R1 independently represents alkyl having from 1 to 6 carbon atoms; L1 and L2 represent alkylene having from 2 to 18 carbon atoms; each R represents alkyl having from 1 to 6 carbon atoms; Z represents an organic divalent linking group; and nXm− represents an anion or anions having a charge m, wherein m and n are independently 1 or 2, and wherein the product of n and m is 2. Aqueous compositions containing the gemini surfactant are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.