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Waltraud Poersch

DA Degussa Ag: 1 patents #925 of 2,007Top 50%
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Patent #TitleCo-InventorsDate
6875243 Catalysts for preparing polyisocyanates containing isocyanurate groups, and their use Michael Ewald, Manuela Windmueller, Stephan Kohlstruk 2005-04-05