| 6087409 |
Production of rigid polyurethane foams |
Werner Schmiade, Michael Gassan |
2000-07-11 |
| 6069182 |
Recycling of plastic waste containing a mixture of polyurethanes with other plastics |
Vera Neiss, Michael Gassan, Werner Deutsch |
2000-05-30 |
| 5968992 |
Reduction of the amine content of recycled polyols |
Michael Gassan, Thomas Schupp, Sarbananda Chakrabarti |
1999-10-19 |
| 5654344 |
Production of rigid to semirigid polyurethane foams having an increased proportion of open cells and reduced shrinkage |
Peter Falke, Inge Rotermund |
1997-08-05 |
| 5556889 |
Preparation of recyclate polyols |
Maritta Lezius |
1996-09-17 |
| 5357006 |
Preparation of recyclate polyols, and the use thereof in the preparation of polyurethanes |
Michael Gassan, Vera Neiss, Peter Moeckel, Wolfgang Weissflog |
1994-10-18 |
