Chromatography of polyolefin polymers
US8318896B2 · kind B2 · utility
7Cited by
9References
15Claims
0Family size
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Key dates
| Filing date | Dec 21, 2009 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Dec 21, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/885
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for multi-dimensional chromatography of a polyolefin polymer, comprising introducing a solution of the polyolefin polymer into a liquid flowing through a first liquid chromatography stationary phase or a field flow fractionation device and subsequently flowing the solution through a second liquid chromatography stationary phase, the second liquid chromatography stationary phase comprising graphitic carbon, the polyolefin polymer emerging from the liquid chromatography stationary phase with a retention factor greater than zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.