Patent · US Expired

Analyzing for alkyl ketene dimers

US5538899A · kind A · utility

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0References

10Claims

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Assignee

University of Manchester Institute of Science and Technology · GB

Inventors

John Roberts · Oklahoma City, US
Ya Zhou · Nashville, US

Key dates

Filing date	Aug 2, 1994
Grant date	Jul 23, 1996
Priority date	—
Expiry date	Aug 2, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/202499
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method of analysing a sample for alkyl ketene dimer (AKD) comprises treating the sample (or extract thereof) with a reagent which will react with an AKD to produce a detectable derivative. The preferred reagent is 4-(N,N'-dimethylamino)pyridine.

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