Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870129 | Adhesive and use of the adhesive for the formation of bonds | Wolfgang Henning, Walter Meckel, Manfred Dollhausen | 1989-09-26 |
| 4870206 | Aromatic polyisocyanates, their preparation and use as components for adhesives | Josef Sanders, Helmut Reiff, Dieter Dieterich, Manfred Dollhausen | 1989-09-26 |
| 4868266 | Heat curable adhesive system | Walter Meckel | 1989-09-19 |
| 4824595 | Polyisocyanate compositions containing reversibly blocked catalysts and addition products of sulfonyl isocyanates with catalysts having a tin(II)- or tin(IV)-carboxylate structure | Roland Richter, Hanns P. Muller, Manfred Dollhausen, Geza Avar, Hans-Albrecht Freitag | 1989-04-25 |
| 4806412 | Laminates | Joachim Wank, Werner Waldenrath | 1989-02-21 |