Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5549972 | Silver-plated fibers of poly(p-phenylene terephthalamide) and a process for making them | Che-Hsiung Hsu | 1996-08-27 |
| 5100434 | Polybenzobisthiazole and polybenzobisoxazole fibers of improved compressive properties | — | 1992-03-31 |
| 5077377 | Process for preparing melt-processible aromatic polyamides with alkali metal fluoride catalyst | — | 1991-12-31 |
| 5021123 | Process for producing paper from a poly(paraphenylene terephthalamide) fibrous gel | — | 1991-06-04 |
| 4980446 | Melt-processible aromatic containing copolyamide from 3,4'-bis (amino phenyl)ether | — | 1990-12-25 |
| 4959453 | Process for the preparation of a poly(paraphenylene terephthalamide)fibrous gel composition and a process to produce poly(paraphenylene terephthalamide) paper from the composition | — | 1990-09-25 |
| 4785038 | Solvent system for difficultly soluble polymers | — | 1988-11-15 |
| 4782131 | Ester interchange polyester preparation with alkali metal fluoride catalyst | — | 1988-11-01 |
| 4608427 | Method for making PBO and PBT polymers | Stephanie L. Kwolek | 1986-08-26 |
| 4603041 | Cyclization of acrylic fiber | — | 1986-07-29 |