Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6828270 | Supported catalyst for producing syndiotactic styrenic polymer with high productivity and significantly reduced reactor fouling | Xuequan Zhang, Sung-Cheol Yoon, Young Sub Lee | 2004-12-07 |
| 6780938 | Reactor alloy of syndiotactic polystyrene having high impact resistance | Sung-Cheol Yoon, Xuequan Zhang, Hyun Joon Kim, Young Sub Lee | 2004-08-24 |
| 6767965 | Method of preparing monomer-grafted syndiotactic polystyrene with polarity | Xuequan Zhang, Jung Hyun Baik, Hyun Joon Kim | 2004-07-27 |