| 5654479 |
4-substituted bis(2,6-diisopropylphenyl)-carbodiimides, their preparation, their use, and 4-substituted 2,6-diisopropylphenyl isocyanates which can be used for their preparation |
Friedhelm Lehrich, Siegmund Pohl, Bernd Bruchmann, Helmut Tesch, Roland Minges +3 more |
1997-08-05 |
| 5621138 |
4-substituted bis (2,6-diisopropylphenyl)- carbodiimides, their preparation, their use, and 4-substituted 2,6-diisopropylphenyl isocyanates which can be used for their preparation |
Friedhelm Lehrich, Siegmund Pohl, Bernd Bruchmann, Helmut Tesch, Roland Minges +3 more |
1997-04-15 |
| 5597942 |
Carbodiimides and/or oligomeric polycarbodiimides based on 1 3-bis (1-methyl-1-isocyanatoethyl) benzene their use as hydrolysis stabilizers |
Siegmund Pohl, Friedhelm Lehrich, Manfred Genz, Bernd Bruchmann, Helmut Tesch +1 more |
1997-01-28 |
| 5532414 |
4-substituted bis(2,6-diisopropylphenyl)-carbodiimides, their preparation, their use, and 4-substituted 2,6-diisopropylphenyl isocyanates which can be used for their preparation |
Friedhelm Lehrich, Siegmund Pohl, Bernd Bruchmann, Helmut Tesch, Roland Minges +3 more |
1996-07-02 |
| 5504241 |
Carbodiimides and/or oligomeric polycarbodiimides based on 1,3-bis(1-methyl-1-isocyanatoethyl)benzene, their preparation, and their use as hydrolysis stabilizers |
Siegmund Pohl, Friedhelm Lehrich, Manfred Genz, Bernd Bruchmann, Helmut Tesch +1 more |
1996-04-02 |
| 5498747 |
Carbodiimides and/or oligomeric polycarbodiimides based on 1,3-bis (1-methyl-1-isocyanatoethyl)benzene, their preparation, and their use as hydrolysis stabilizers |
Siegmund Pohl, Friedhelm Lehrich, Manfred Genz, Bernd Bruchmann, Helmut Tesch +1 more |
1996-03-12 |
| 4897431 |
Process for the preparation of primarily closed cell rigid foams containing urethane groups or urethane- and isocyanurate groups, and their use |
Dietrich Scherzer |
1990-01-30 |
| 4845266 |
Process for the preparation of polyester polyols |
Matthias Marx, Joachim Jaehme |
1989-07-04 |
| 4837245 |
Process for the preparation of non-cellular or cellular polyurethane elastomers in the presence of a polyester polyol containing therein titanium and/or tin compounds as catalysts |
Wolfgang Straehle, Gerhard G. Ramlow |
1989-06-06 |
| 4798851 |
Process for the preparation of elastic, noncellular or cellular polyurethane- or polyurethane-polyurea molded articles |
Frank Werner, Herbert Mueller |
1989-01-17 |
| 4778830 |
Polyester polyols liquid at room temperature and their preparation and use in preparing plastics by polyisocyanate addition polymerization |
Matthias Marx, Peter Weyland, Dietrich Scherzer, Wolfgang Straehle |
1988-10-18 |
| 4731392 |
Process for the preparation of polyester polyols, based on 2-methyl-1,4-butanediol, which are liquid at room temperature, and their use for the preparation of plastic materials |
Wolfgang Straehle |
1988-03-15 |