Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855327 | Process for producing pre-expanded particles of polyolefin resins | — | 1989-08-08 |
| 4839408 | Stabilized polyolefin composition | Kazuhisa Kuroda, Tamaki Ishii, Manji Sasaki | 1989-06-13 |