Method of producing laminates from mixed thermosetting resin compositions containing polyphenylene ethers
Abstract
Abstract THIS SPECIFICATION DISCLOSES THE THERMOSETTING RESIN COMPOSITIONS OF IMPROVED QUALITIES MADE BY COMBINING A HIGH-TEMPERATURE THERMOPLASTIC RESIN, I.E., A POLYPHENYLENE ETHER POLYMER, WITH ORGANIC MATERIALS CONTAINING POLYMERIZABLE CARBON TO CARBON UNSATURATION, PARTICULARLY DIALLYLIC PHTHALATE MONOMERS AND PREPOLYMERS. THESE POLYPHENYLENE ETHER POLYMERS COMBINE WITH POLYMERIZABLE MATERIALS CONTAINING CARBON TO CARBON UNSATURATION IN THE PRESENCE OF A FREE RADICAL CATALYST. THESE COMPOSITIONS ARE FORMED BY MODERATE HEAT AND PRESSURE INTO ARTICLES WITH EXCELLENT ELECTRICAL AND MECHANICAL PROPERTIES WHICH ARE RETAINED AT ELEVATED TEMPERATURES, AND UNDER CONDITIONS HIGH HUMIDITY.
Inventors
- 👤 Carl L Wright
- 👤 Harry H Beacham
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |