US3689464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imido-substituted polyamide compositions
Assignee: Von Roll Isola USA Inc
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Filing: 1970-12-18
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Granted: 1972-09-05
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Expires: 1990-12-18
Abstract
Abstract POLYAMIDES HAVING TERMINAL ALIPHATICALLY UNSATURATED IMIDO RADICALS ARE PROVIDED AND A METHOD FOR MAKING SUCH MATERIALS. BLENDS OF THE IMIDOSUBSTITUTED POLYAMIDES AND A VARIETY OF ALIPHATICALLY UNSATURATED ORGANIC MONOMERS, SUCH AS STYRENE, N-PHENYLMALEIMIDE, BISMALEIMIDES OR ORGANIC POLYMERS, SUCH AS POLYPHENYLENE OXIDES, POLYVINYL CHLORIDE, POLYSTYRENE, POLYSULFONE, POLYCARBONATE, ETC., ALSO ARE PROVIDED. THE IMIDO-SUBSTITUTED COMPOSITIONS OF THE PRESENT INVENTION CAN BE EMPLOYED AS MOLDING COMPOUNDS, LAMINATES, VARNISHES AND ADHESIVES.
Inventors
- 👤 Fred F Holub
- 👤 Milton L Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:24
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/48; C08G73/00; C08G73/06; C08G73/10; C08G73/12; Y; Y10; Y10S; Y10S525/00; Y10S525/925; Y10S525/929
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |