Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889896 | Process for the imidization of copolymers of maleic anhydride with vinyl-aromatic monomers | Luciano Canova, Umberto Giannini, Enrico Albizzati, Antonio Alfonso Proto | 1989-12-26 |
| 4849473 | Stengthened high impact styrene polymers showing improved physical-mechanical properties | Giuseppe Cigna, Gian C. Fasulo, Gianfranco Biglione | 1989-07-18 |