Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868223 | Use of amine initiated butylene oxide polyols in polyurethane products | Donald L. Nelson, Douglas P. Waszeciak | 1989-09-19 |
| 4814411 | Increased reactivity of isocyanate terminated polyether prepolymers with metal halide salt complexes of methylenedianiline | Tristram W. Bethea, James Oziomek, Joseph H. Tazewell, Louis W. Meyer | 1989-03-21 |