Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374667 | Process for the preparation of fluorochlorohydrocarbon-free, low-density polyurethan soft foams and soft elastic polyurethan molding foams and polyisocyanate mixtures modified with urethan groups on diphenylmethane-diisocyanate base | Werner Hinz, Ruth Zschiesche, Heinz-Dieter Lutter | 1994-12-20 |
| 5329003 | Process for the preparation of uretdione group containing polyisocyanates | — | 1994-07-12 |