Patent · US Active

Method for characterizing an ethylene and vinyl acetate copolymer

US9157877B2 · kind B2 · utility

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15Claims
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Key dates

Filing dateMar 2, 2012
Grant dateOct 13, 2015
Priority date
Expiry dateApr 23, 2032

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T436/216
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A process for characterizing a copolymer of ethylene and vinyl acetate (EVA) using a differential calorimetry analysis technique. This process is determining one or more values of characteristic(s) of a sample of EVA copolymer, one of which is a level of crosslinking of the sample. The process makes it possible to determine not only the degree of crosslinking, but also the vinyl acetate content and the molecular mass of an EVA sample, in a simple, rapid, easy and precise manner.

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