Method and device for determining the isomer composition in isocyanate production processes

US7662634B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

• Jochen Mahrenholtz · Krefeld, DE
• Andrea Wimschneider · Goldkronach, DE
• Hans-Georg Pirkl · Leverkusen, DE
• Heinz Muller · Krefeld, DE
• Stefan Dresely · Reinheim, DE
• Jeffrey Bolton · Mülheim an der Ruhr, DE
• Martin Schiffhauer · Erkrath, DE
• Udo Wolf · Kempen, DE
• Johannes Schweer
• Martin Gerlach · Strullendorf, DE

Key dates

• Filing date: May 14, 2004
• Grant date: Feb 16, 2010
• Expiry date: Jul 21, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/172307
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a method for determining the isomer composition in an isocyanate isomer mixture, wherein a spectrum of the isomer mixture is recorded and the spectrum is entered into a chemometric calibration model.