Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8952109 | Process for preparing a block copolymer | Martin Weber, Thomas Weiß, Christian Maletzko, Bastiaan Bram Pieter Staal | 2015-02-10 |
| 5786402 | Production of polyurethane foams in the presence of aminoalkyl- or aminophenylimidazoles as catalyst, and the use of these catalysts for the preparation of polyisocyanate polyaddition products | Bernd Bruchmann, Ruth Zschiesche, Heinz-Dieter Lutter, Werner Hinz | 1998-07-28 |
| 5597885 | Preparation of chlorofluorocarbon-free flexible polyurethane foams using diphenylmethane diisocyanate-based polyisocyanate mixtures containing urethane groups, and modified polyisocyanate mixtures | Heinz-Dieter Lutter, Bernd Bruchmann, Roland Minges, Dietrich Scherzer, Michael Lugmayr +1 more | 1997-01-28 |
| 5596063 | Preparation of chlorofluorocarbon-free flexible polyurethane foams using diphenylmethane diisocyanate-based polyisocyanate mixtures containing urethane groups, and modified polyisocyanate mixtures of this type | Heinz-Dieter Lutter, Bernd Bruchmann, Roland Minges, Dietrich Scherzer, Michael Lugmayr +1 more | 1997-01-21 |
| 5494941 | Preparation of chlorofluorocarbon-free flexible polyurethane foams using diphenylmethane diisocyanate-based polyisocyanate mixtures containing urethane groups, and modified polyisocyanate mixtures of the type | Heinz-Dieter Lutter, Bernd Bruchmann, Roland Minges, Dietrich Scherzer, Michael Lugmayr +1 more | 1996-02-27 |
| 5173518 | Preparation of cellular polyurethane elastomers using polyether carbonate diols as a starting component | Kaspar Bott, Horst King, Roland Minges, Wolfgang Straehle | 1992-12-22 |