Patent · US Expired

Spectroscopic analysis process for plastic mixtures

US5206510A · kind A · utility

6Cited by

1References

4Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Udo Wolf · Kempen, DE
Hans-Alo Dohmen · Aldenhoven, DE
Jurgen Diefendahl · Neukirchen-Vluyn, DE

Key dates

Filing date	Nov 6, 1991
Grant date	Apr 27, 1993
Priority date	—
Expiry date	Nov 6, 2011

Classification

Technology area (CPC G)Physics
CPC primaryG01N21/3563
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a process for the analysis of plastic mixtures by infrared transmission spectroscopy in which the spectra are run while the samples are rotated. This measure improves the accuracy and reproducibility of the spectra and, hence, the determination of individual components of the plastic mixture.

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