| 6096238 |
Preparation of CFC-free, highly resilient, flexible polyurethane foams, and diphenylmethane diisocyanate-based polyisocyanate mixtures modified by means of urethane groups which can be used for this purpose |
Heinz-Dieter Lutter, Jurgen Mertes, Bernd Bruchmann, Klaus Pittrich, Peter Brandt |
2000-08-01 |
| 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, Heinz-Dieter Lutter, Claudia Spang, Werner Hinz |
1998-07-28 |
| 5739173 |
Preparation of flame-resistant soft polyurethane foams of reduced smoke density, and melamine/expandable graphite/polyether-polyol dispersions for this purpose |
Heinz-Dieter Lutter, Hans-Jurgen Gabbert, Volker Hasse, Karl Fimmel |
1998-04-14 |
| 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, Claudia Spang, Roland Minges, Dietrich Scherzer +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, Claudia Spang, Roland Minges, Dietrich Scherzer +1 more |
1997-01-21 |
| 5534185 |
Process for the preparation of fluorochlorohydrocarbon-free low density polyurethane soft foams and soft elastic polyurethane molding foams and polyisocyanate mixtures modified with urethane groups and diphenylmethane-diisocyanate base |
Werner Hinz, Heinz-Dieter Lutter, Bernd Bruchmann |
1996-07-09 |
| 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, Claudia Spang, Roland Minges, Dietrich Scherzer +1 more |
1996-02-27 |
| 5476969 |
Highly reactive polyoxyalkylene-polyols containing tertiary amino groups in bonded form, their preparation, and their use for the preparation of polyisocyanate polyaddition products |
Werner Hinz, Stefan Adams, Ulrich Koehler, Christian Maletzko, Klaus Vorspohl |
1995-12-19 |
| 5374667 |
Process for the preparation of fluorochlorohydrocarbon-free, low-density polyurethan soft foams and soft elastic polyurethan molding foams and polyisocyanate mixtures modified with urethan groups on diphenylmethane-diisocyanate base |
Werner Hinz, Heinz-Dieter Lutter, Bernd Bruchmann |
1994-12-20 |
