Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883856 | Flame-resistant polycarbonates, containing in their polymeric chain units deriving from mono-halogenated tetra-phenyl compounds | — | 1989-11-28 |
| 4857628 | Branched polycarbonate from 2,4,6-tris(4'-hydroxyaryl)-amino-S-triazine | — | 1989-08-15 |
| 4798882 | Branched polycarbonate from methylene-bis-naphthalene compound | — | 1989-01-17 |
| 4795797 | Branched polycarbonate from aliphatic polyicarboxylic acids or derivatives thereof, and process for their preparation | — | 1989-01-03 |