Issued Patents All Time
Showing 126–139 of 139 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4306037 | Process for the manufacture of elastic polyurethane foams capable of being flame laminated and high frequency welded | Peter Seifert, Wolfgang Reichmann, Hans-Walter Illger, Heinz Muller | 1981-12-15 |
| 4297455 | Process for the preparation of carbonic acid aryl esters of polyester-diols lengthened via carbonate groups and their use for the preparation of polyester-diol bis-diphenol carbonates and polyester/polycarbonates | Christian Lindner, Carlhans Suling, Herbert Bartl, Manfred Schreckenberg, Dieter Freitag | 1981-10-27 |
| 4281101 | Process for the preparation of aliphatic-aromatic polycarbonates with diphenol carbonate end groups and their use for the preparation of high-molecular, segmented, aliphatic-aromatic polycarbonate elastomers which can be processed as thermoplastics | Manfred Schreckenberg, Dieter Freitag, Gunther Lehnert, Christian Lindner | 1981-07-28 |
| 4267303 | Process for the preparation of polymers with diphenol carbonate end groups | Manfred Schreckenberg, Christian Lindner, Carlhans Suling, Dieter Freitag | 1981-05-12 |
| 4256849 | Process for the production of cold setting foams which contain urethane groups prepared from a mixture of 4,4-diphenyl methane diisocyanate and 2,4-diphenyl methane diisocyanate | Jurgen Ick, Hans-Joachim Meiners, Gunter Oertel, Gunter Hauptmann | 1981-03-17 |
| 4231952 | Process for the production of monoisocyanate | Hartmut Knofel | 1980-11-04 |
| 4220749 | Process for the production of modified polyisocyanates | Wolfgang Reichmann, Heinz-Georg Nordmann | 1980-09-02 |
| 4217297 | Process for the preparation of carbonic acid aryl esters of polyester-diols lengthened via carbonate groups | Christian Lindner, Carlhans Suling, Herbert Bartl, Manfred Schreckenberg, Dieter Freitag | 1980-08-12 |
| 4217437 | Process for the preparation of carbonic acid bis-diphenol esters of polyalkylene oxide-diols lengthened via carbonate groups and their use for the preparation of high-molecular, segmented polyether/polycarbonates which can be processed as thermoplastics | Manfred Schreckenberg, Dieter Freitag, Christian Lindner, Carlhans Suling, Herbert Bartl | 1980-08-12 |
| 4216298 | Process for the preparation of carbonic acid bis-diphenol esters of polyester-diols and their use for the preparation of high-molecular segmented polyester/polycarbonates which can be processed as thermoplastics | Manfred Schreckenberg, Dieter Freitag, Christian Lindner, Carlhans Suling, Herbert Bartl | 1980-08-05 |
| 4207128 | Reactive polyurethane coatings | Harro Traubel, Hans-Jurgen Muller, Bruno Zorn | 1980-06-10 |
| 4196276 | High-molecular weight, segmented, polycarbonate elastomers | Manfred Schreckenberg, Dieter Freitag, Volker Serini | 1980-04-01 |
| 4195031 | Process for the continuous production of monoisocyanates | Wolfgang Reichmann, Johannes Franciscus Gerardus Koster | 1980-03-25 |
| 4191705 | Process for the preparation of carbonic acid esters of polyester-polyols | Christian Lindner, Carlhans Suling, Herbert Bartl, Manfred Schreckenberg, Dieter Freitag | 1980-03-04 |