Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5312888 | Flexible polyurethane rebond foam having improved tear resistance and method for the preparation thereof | John L. Nafziger, Charles E. Koehler, Bruce Stevens | 1994-05-17 |
| 5290818 | Flexible polyurethane rebond foam having improved tear resistance and method for the preparation thereof | John L. Nafziger, Charles E. Koehler, Bruce Stevens | 1994-03-01 |
| 5216042 | Process for preparing viscosity-stabilized reactive toluene diisocyanate distillation residues and blends thereof | Rory D. Daussin, John L. Nafziger | 1993-06-01 |
| 5185384 | Method for reducing hydrolyzable chloride in toluene diisocyanate | Rory D. Daussin, Van A. Kent | 1993-02-09 |
| 5169878 | Composition and method of preparation of viscosity-stabilized polyisocyanates comprising triazine groups | Lao-Jer Chen, Shenghong A. Dai | 1992-12-08 |
| 4904704 | Rigid foams prepared from treated toluene diisocyanate residue | John L. Nafziger, Charles E. Koehler, Debkumar Bhattacharjee | 1990-02-27 |
| 4876380 | Color reduction of polymeric isocyanates via multiple solvent fractionation | Lao-Jer Chen | 1989-10-24 |
| 4428897 | Process for preparing particle board | Richard A. Prather, Howard R. Steele | 1984-01-31 |