Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857627 | Amino phenol end capped aromatic polycarbonate reacted with sulfonate | — | 1989-08-15 |
| 4826928 | Copolyester-carbonate resins having trimellitic acid units in the polymer backbone and their use as crosslinking or branching agents | — | 1989-05-02 |
| 4814395 | Ester terminated polycarbonates | — | 1989-03-21 |
| 4814421 | Hydroxy terminated polycarbonates | — | 1989-03-21 |