Patent US3280053A successfully refreshed from Google Patents.
US3280053A
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US
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Polyamide stabilized with a copper compound and a stannous salt
Assignee: Honeywell International Inc
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Filing: 1963-06-17
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Granted: 1966-10-18
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Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 Ian C Twilley
- 👤 Frederick P Poznick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:32
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K3/00; C08K3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A HEAT STABILIZED COMPOSITION OF A POLYMERIC AMIDE HAVING RECURRING AMIDE GROUPS AS AN INTEGRAL PART OF THE MAIN POLYMER CHAIN AND CAPABLE OF BEING FORMED INTO A FILAMENT, WHEREIN THE POLYMERIC AMIDE IS POLY-E-CAPROAMIDE; THE COPPER IS IN A FORM SOLUBLE IN MOLTEN E-CAPROLACTAM MONOMER AND IS IN AMOUNT BETWEEN ABOUT 0.001 PART AND ABOUT 0.03 PART AS COPPER PER 100 PARTS BY WEIGHT OF THE POLYCAPROAMIDE; AND THE STANNOUS SALT IS IN AMOUNTS BETWEEN ABOUT 0.001 PART AND ABOUT 2 PARTS PER 100 PARTS BY WEIGHT OF THE POLYCAPROAMIDE.
Claim 2
Dependent Claim
91 words
A HEAT STABILIZED COMPOSITION OF A POLYMERIC AMIDE HAVING RECURRING AMIDE GROUPS AS AN INTEGRAL PART OF THE MAIN POLYMER CHAIN AND CAPABLE OF BEING FORMED INTO A FILAMENT, WHEREIN THE POLYMERIC AMIDE IS POLY-E-CAPROAMIDE; THE COPPER IS IN A FORM SOLUBLE IN MOLTEN E-CAPROLACTAM MONOMER AND IS IN AMOUNT BETWEEN ABOUT 0.001 PART AND ABOUT 0.03 PART AS COPPER PER 100 PARTS BY WEIGHT OF THE POLYCAPROAMIDE; AND THE STANNOUS SALT IS IN AMOUNTS BETWEEN ABOUT 0.001 PART AND ABOUT 2 PARTS PER 100 PARTS BY WEIGHT OF THE POLYCAPROAMIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |