Issued Patents All Time
Showing 51–70 of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6127463 | Polymeric MDI color reduction | Clarence D. Blue | 2000-10-03 |
| 6031137 | Stable aromatic amine composition, a process for preparing color stable aromatic amines, and the production of light colored aromatic amine-based polyether polyols | — | 2000-02-29 |
| 6022937 | Polyether polyols based on triazole group containing compounds and a process for their production | Harold R. Parsons | 2000-02-08 |
| 6004482 | Stable aromatic amine composition, and a process for preparing color stable aromatic amines | Steven L. Schilling, Keith J. Headley | 1999-12-21 |
| 5942151 | Polymeric MDI color | Clarence D. Blue | 1999-08-24 |
| 5914409 | Tolyltriazole process | Craig M. Young | 1999-06-22 |
| 5874623 | Process for the production of polyether aminoalcohols | William E. Slack | 1999-02-23 |
| 5872292 | Stable aromatic amine composition, a process for preparing color stable aromatic amines, and the production of light colored aromatic amine-based polyether polyols | Steven L. Schilling, Keith J. Headley | 1999-02-16 |
| 5763667 | Ether-linked amine-terminated polyethers and a process for their production | William E. Slack | 1998-06-09 |
| 5739397 | Process for the production of secondary amines and the amines produced by the process | William E. Slack | 1998-04-14 |
| 5723670 | Liquid amines | William E. Slack | 1998-03-03 |
| 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 |
| 5525683 | Ether-linked amine-terminated polyesters and a process for their production | William E. Slack, Rudolf Sundermann | 1996-06-11 |
| 5510535 | Ether-linked amine-terminated polyethers and a process for their production | William E. Slack | 1996-04-23 |
| 5510445 | Process for castable polyurea elastomers | Karl W. Haider, William E. Slack, James W. Rosthauser, Peter H. Markusch | 1996-04-23 |
| 5326829 | Process for the production of activated polyethers | William E. Slack | 1994-07-05 |
| 5312971 | Color reduction of polymethylene polyphenyl polyisocyanates | Clarence D. Blue | 1994-05-17 |
| 5212275 | Urea and biuret prepolymers of MDI | William E. Slack | 1993-05-18 |