Method for classifying resins

Abstract

A method for classifying at least two or more resins, the method comprising: a purification step of removing volatile components by subjecting resins to be classified to a heat treatment at a temperature lower than each decomposition temperature; a decomposition step of subjecting the resins to be classified to a pyrolysis treatment at a temperature higher than each decomposition temperature to obtain pyrolysates of the resins; an analysis step of separating and analyzing the pyrolysates using a two-dimensional gas chromatograph mass spectrometer; a table creation step of creating a table by performing assignment of peaks appearing in each two-dimensional chromatogram obtained after the analysis step and alignment between the two-dimensional chromatograms; and a classification step of classifying resins by performing multivariate analysis based on the created table.

Dependencies are inferred from the claim text.