👤 PersonKarl Ziegler1898–1973 · GermanyWikipediaWikipedia (es)Wikidata🌍 View on the globeInventions and discoveries · 21953-1954Ziegler-Natta catalysts: HDPE and polypropyleneInvention or technique · inventor1953-1954Ziegler-Natta polymerization catalystsDiscovery · discoverer