Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4477651 | Process for preparing polyphenylene oxides | Susan A. Nye | 1984-10-16 |
| 4468506 | Polyetherimide blends | Fred F. Holub, Daniel E. Floryan | 1984-08-28 |
| 4431779 | Polyetherimide-polyphenylene ether blends | Robert O. Matthews | 1984-02-14 |
| 4395518 | Polyetherimide-acrylate copolymer blends | Harold F. Giles, Jr. | 1983-07-26 |
| 4393168 | Blends of polyetherimides and rubber modified vinyl aromatic polymers | Harold F. Giles, Jr. | 1983-07-12 |
| 4356290 | Block polymers of polyphenylene oxide and aromatic polyformals | — | 1982-10-26 |
| 4340696 | Formal-coupled polyphenylene oxides | George R. Loucks | 1982-07-20 |
| 4334050 | Arene polysulfonyl halide coupled block polymers of polyphenylene oxide and aromatic polyformals | — | 1982-06-08 |
| 4330666 | Method for making polyetherimides | David G. Keyes | 1982-05-18 |
| 4324885 | Quaternary Group VA salt catalyzed method for making polyetherimide | David G. Keyes | 1982-04-13 |
| 4324883 | Method for making polyetherimide using a phenolic or carboxylic acid catalyst | David G. Keyes | 1982-04-13 |
| 4324884 | Organic amine catalyzed method for making polyetherimide | David G. Keyes | 1982-04-13 |
| 4238580 | Process of forming urethane-coupled polymers of quinone-coupled polyphenylene oxides | George R. Loucks | 1980-12-09 |
| 4238581 | Urethane-coupled block polymers of quinone-coupled polyphenylene oxides | — | 1980-12-09 |
| 4238584 | Block polymers of polyphenylene oxide and polystyrene | — | 1980-12-09 |
| 4234706 | Quinone-coupled polyphenylene oxides | — | 1980-11-18 |
| 4226951 | Block polymers of polyphenylene oxide and polystyrene | — | 1980-10-07 |
| 4221881 | Block polymers of polyphenylene oxide and polystyrene | — | 1980-09-09 |