Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882397 | Method for converting polyketals to polyaryletherketones in the presence of a metal salt | — | 1989-11-21 |
| 4855388 | Co-reagent stabilization of poly(aryl ether sulfones) using sodium, lithium, alkaline earth or lanthanide metal salts | — | 1989-08-08 |
| 4841009 | Substantially linear monomeric composition and liquid crystal polymeric compositions derived therefrom | — | 1989-06-20 |
| 4829143 | Modified poly(aryl ether ketones) derived from biphenol | Robert A. Clendinning | 1989-05-09 |