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Walter Kaminsky (born May 7, 1941) is a German chemist. His research dwells in olefin polymerization, and also in plastic recycling. He discovered the high activity of Group 4 metallocene/methylaluminoxane (MAO) mixtures as catalysts for olefin polymerization in 1980.
Kaminsky was born in Hamburg, Germany and studied Chemistry at the University of Hamburg. He joined their faculty in 1979, and is currently a full professor for Technical and Macromolecular Chemistry.