Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5994579 | Process for lightening the color of polymeric diphenylmethane diisocyanate and the use of brightened diphenylmethane diisocyanate in the production of polyurethane | Juan Morell Torrel, Vicente Requena Alda | 1999-11-30 |
| 5354432 | Process for the production of isocyanates and for working up the residue | Javier C. Arribas, Ciriaco D. Arribas | 1994-10-11 |