Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882385 | 1,3,5-tris(1-isocyanatomethylethyl)benzene in polyurethanes | Singh Balwant | 1989-11-21 |
| 4873365 | Process for the preparation of isophorone diisocyanate from isophorone dicarbamyl esters using highly selective SnO.sub.2 or CuO catalysts | Yuhshi Luh | 1989-10-10 |