Method and a device for the continuous colorimetry of plastics molding compounds

US5953129A · kind A · utility

Assignee

• BASF SE

Inventors

• Rainer Anderlik · Heidelberg, DE
• Jurgen Ettmuller · Haßloch, DE
• Matthias Radle · Bad Dürkheim, DE
• Paulus Schmaus · Ludwigshafen, DE
• Norbert Modersheim · Bischofswerda, DE

Key dates

• Filing date: Jun 26, 1997
• Grant date: Sep 14, 1999
• Expiry date: Jun 26, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C2948/92904
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for the continuous colorimetry of plastics molding compounds, which involves light being introduced, via transmitter light pipes and a sensor head, into the melt of the molding compound and the light reflected there being passed, via receiver light pipes, to a spectrometer or multirange photometer, conjugate transmitter and receiver light pipes in each case being spaced equidistantly.