Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888442 | Reduction of free monomer in isocyanate adducts | Peter H. Markusch, Clarence D. Ferrell | 1989-12-19 |
| 4810820 | Process for the production of polyisocyanates containing allophanate groups | William E. Slack, Terry A. Potter | 1989-03-07 |