Moldable needle-like assemblies
Abstract
Abstract MOLDABLE EPOXY RESIN INPREGNATED FIBROUS NEDDLE-LIKE ASSEMBLIES ARE PROVIDED WHICH MAY BE UTILIZED IN THE PRODUCTION OF FIBER REINFORCED COMPOSITES. THE NEEDLE-LIKE ASSEMBLIES ARE FORMED BY AGITATING AT AN ELEVATED TEMPERATURE A MINOR QUANTITY OF DISCONTINUOUS FIBERS WITH AN EMULSION COMPRISING A MINOR QUANTITY OF AN A-STAGE EPOXY RESIN AND A CURING AGENT FOR SAID EPOXY RESIN WITHIN A MAJOR QUANTITY OF A CONTINUOUS PHASE COMPRISING A MIXTURE OF GLYCEROL, WATER, AND A WATER-SOUBLE NONIONIC SURFACE-ACTIVE AGENT. THE PRODUCT OF THE PRESENT INVENTION IS RECOVERED FROM THE SYSTEM IN WHICH IS FORMED AND IS SUITABLE FOR USE AS A GRANULAR MOLDABLE MATERIAL WHICH CONSISTS OF ESSENTIALLY UNIDIRECTIONALLY ALIGNED FIBERS IMPREGNATED WITH A B-STAGE EPOXY RESIN.
Inventors
- 👤 Ilmar L Kalnin
- 👤 George J Breckenridge
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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |