High-temperature characterization of polymers
US6260407A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Apr 2, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/13
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Rapid characterization and screening of polymer samples to determine average molecular weight, molecular weight distribution and other properties is disclosed. Rapid flow characterization systems and methods, including liquid chromatography and flow-injection analysis systems and methods are preferably employed. High throughput, automated sampling systems and methods, high-temperature characterization systems and methods, and rapid, indirect calibration compositions and methods are also disclosed. In preferred high-temperature embodiments, the polymer sample is maintained at a temperature of not less than about 75.degree. C. during sample preparation, loading into a liquid chromatography or flow-injection analysis system, injection into a mobile phase of a liquid chromatography or flow-injection analysis system, and/or elution from chromatographic column. The described methods, systems, and device have primary applications in combinatorial polymer research and in industrial process control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.