Method and apparatus to study a surfactant
US7155962B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2002 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | May 17, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2013/0275
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method of and an apparatus for studying properties, especially physical properties of a surfactant. A fluid is introduced in the form of a sample volume in another fluid which is immiscible with said fluid so that an interface is formed between the one fluid and the other fluid, at least in a partial area of a surface of the sample volume. The sample volume is configured so as to be axially symmetrical around a given defining axis, whereby the interface is formed axially symmetrically with respect to the given defining axis. The surfactant is spread across the interface to form a surface film in the area of the interface with the surfactant. Thereupon the surface film can by studied microscopically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.