Viscosity measurement
US4286457A · kind A · utility
9Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 6, 1980 |
| Grant date | Sep 1, 1981 |
| Priority date | — |
| Expiry date | Mar 6, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/625
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for determining the solution viscosity of polymers using gel partition chromatography (GPC). The method comprises obtaining a GPC analysis of the solution and measuring the pressure drop at a selected point in the GPC flow path. The GPC analysis provides a measure of the polymer concentration in the solution. The viscosity can be determined from the pressure drop in combination with the known polymer concentration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.