Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703158 | Aqueous anionic poly (urethane/urea) dispersions | Youlu Duan, Michael J. Dochniak | 1997-12-30 |
| 5637639 | Reduced solvent process for preparation of aqueous polyurethane dispersions with improved heat-and water-resistance | Youlu Duan | 1997-06-10 |
| 5610232 | Aqueous non-gelling, anionic polyurethane dispersions and process for their manufacture | Youlu Duan, Scott Rhein, Lowell Lindquist | 1997-03-11 |
| 5608000 | Aqueous polyurethane dispersion adhesive compositions with improved heat resistance | Youlu Duan | 1997-03-04 |