Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814411 | Increased reactivity of isocyanate terminated polyether prepolymers with metal halide salt complexes of methylenedianiline | Tristram W. Bethea, Joseph H. Tazewell, Douglas Hillshafer, Louis W. Meyer | 1989-03-21 |
| 4806322 | Process for the production of linear polyphosphazenes | William L. Hergenrother | 1989-02-21 |