Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873287 | Flame retardant ternary blends of polyetherimide, polyphenylene ether and block copolymer of a vinyl aromatic hydrocarbon and an alkene compound | Fred F. Holub, John A. Rock | 1989-10-10 |
| 4808647 | Crosslinkable flame retardant composition of polyolefin and polyphenylene ether | Joseph E. Betts, Fred F. Holub, Gim F. Lee, Jr. | 1989-02-28 |