Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879346 | Blends of a silicone-polycarbonate block copolymer with a compatibilized alloy of polyphenylene ether resin/polyester resin | John B. Yates, III | 1989-11-07 |
| 4857390 | Low density extruded foam having high compressive strength | Richard B. Allen, Barbara M. Bacskai, Daniel L. Roberts | 1989-08-15 |
| 4843116 | UV light stabilizer composition comprising cyclic aliphatic epoxy, UV screener, and polyalkyldipiperidine (HALS) compounds | — | 1989-06-27 |
| 4835201 | Compositions of polyphenylene ether resin and high impact polystyrene resin having improved ultraviolet light resistance | — | 1989-05-30 |