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Patents Assigned to Bayer Aktiengesesellschaft

Fractionation and purification of aromatic polyamine mixtures and the use thereof

Patent number: 5648519

Abstract: The invention relates to a process for the fractionation and purification of aromatic polyamine mixtures and to the use thereof.

Type: Grant

Filed: March 28, 1996

Date of Patent: July 15, 1997

Assignee: Bayer Aktiengesesellschaft

Inventors: Hartmut Knofel, Michael Brockelt