Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885407 | Method for recovering a dihydric phenol from a scrap polyester | Daniel W. Fox | 1989-12-05 |
| 4871830 | Polyestercarbonate containing divalent residue of polymerized alkadiene monomer | Victor Mark, by Carol M. Mark, representative, by Ester H. Mark, representative | 1989-10-03 |
| 4845158 | Telechelic polyisobutylene and block copolymer derivatives | — | 1989-07-04 |
| 4841015 | Low plate-out polycarbonate end capped with phenoxy acetic acid | Daniel W. Fox, Paul Dean Sybert | 1989-06-20 |
| 4837299 | Process for making polyimides | Michael Walter Schultz | 1989-06-06 |