Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693864 | Process for the production of secondary amine terminated polyethers | William E. Slack, Hans G. Schmelzer | 1997-12-02 |
| 5672761 | Method for reducing the viscosity of high viscosity polyether polyols | William E. Slack | 1997-09-30 |
| 5648445 | Liquid 1,3-phenylene diisocyanate, 1,1'-biphenyl diisocyanate and 1,1'-oxy-bis-(isocyanato-benzene) | William E. Slack | 1997-07-15 |