Patent · US Active

Apparatus and method for polymer characterization

US7985593B2 · kind B2 · utility

4Cited by

0References

4Claims

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Assignee

DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

David T. Gillespie · Pearland, US
Colin Li Pi Shan · Pearland, US
Lonnie G. Hazlitt · Lake Jackson, US
Alexander W. Degroot · Lake Jackson, US
Peter B. Arnoudse · Lake Jackson, US
Charles A. Williams · Shallotte, US

Key dates

Filing date	Jan 19, 2006
Grant date	Jul 26, 2011
Priority date	—
Expiry date	Nov 19, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01N2030/3007
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Apparatus for GPC/TREF and TREF/GPC characterization of a polymer sample. The apparatus provides for the automated and integrated use of multiple TREF columns and a GPC system employing a multiple flow through detectors. In addition, a method for TREF/GPC characterization of a polymer sample by GPC analysis of TREF fractions at increasing TREF elution temperatures from multiple TREF columns operated in a coordinated and synchronized temperature cycle for increased sample throughput. Also, a method for GPC/TREF characterization of a polymer sample by GPC fractionation followed by TREF fractionation of the GPC fractionations.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.