Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646228 | Process for the preparation of blocked polyisocyanates, and their use in polyurethane coating systems | Siegfried Brandt | 1997-07-08 |
| 5633336 | Polyamines containing urea groups and process for their preparation | Elmar Wolf | 1997-05-27 |
| 5616658 | Process for the production of matt epoxy resin and hybrid powder coatings | Elmar Wolf | 1997-04-01 |
| 5608016 | Salts of pyromellitic acid, and their use as epoxy resin curing agents | Elmar Wolf | 1997-03-04 |