Patent US3113120A successfully refreshed from Google Patents.
US3113120A
Expired / Lapsed
US
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Stabilized caprolactam polymer composition
Assignee: Honeywell International Inc
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Filing: 1960-06-14
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Granted: 1963-12-03
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Expires: 1980-06-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Patrick V Papero
- 👤 Jr Robert L Morter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:41
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41; C08K5/42
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
44 words
A POLYCAPROAMIDE STABILIZED AGAINST AGING, HAVING COPPER DISSOLVED THEREIN AND IN WHICH IS INCORPORATED AT LEAST 3 MOLECULAR PROPORTIONS PER ATOMIC PROPORTION COPPER, OF AT LEAST ONE SULFONIC COMPOUND OF THE GROUP CONSISTING OF ARYLSULFONIC ACIDS AND DERIVATIVES HYDROLYZABLE THERETO, FREE OF CHROMOPHORIC GROUPS.
Claim 2
Dependent Claim
44 words
A POLYCAPROAMIDE STABILIZED AGAINST AGING, HAVING COPPER DISSOLVED THEREIN AND IN WHICH IS INCORPORATED AT LEAST 3 MOLECULAR PROPORTIONS PER ATOMIC PROPORTION COPPER, OF AT LEAST ONE SULFONIC COMPOUND OF THE GROUP CONSISTING OF ARYLSULFONIC ACIDS AND DERIVATIVES HYDROLYZABLE THERETO, FREE OF CHROMOPHORIC GROUPS.
Claim 3
Dependent Claim
48 words
COMPOSITION AS DEFINED IN CLAIM 1 WHEREIN COPPER IS PRESENT IN AMOUNTS BETWEEN ABOUT 10 AND ABOUT 100 PARTS PER MILLION BY WEIGHT BASED ON THE POLYCAPROAMIDE AND THE SULFONIC COMPOUND PRESENT IS PARA-TOLUENESULFONIC ACID IN AMOUNT BETWEEN ABOUT 0.1% AND ABOUT 1% BY WEIGHT OF THE POLYCAPROAMIDE.
Claim 4
Dependent Claim
34 words
COMPOSITIONAS DEFINED IN CLAIM 4 WHEREIN THERE IS ADDITIONALLY PRESENT A HIGH TEMPERATURE, HIGH PRESSURE REACTION PRODUCT OF DIPHENYLAMINE AND ACETON, FURTHER REACTED WITH FORMALDEHYDE TO FORM THEREFROM A WATERINSOLUBLE SOLID, FUSABLE CONDENSATION PRODUCT.
References Cited (Backward Citations)
US1906942A
Cited
US2476661A
Cited
US2560053A
Cited
US2705227A
Cited
US2960489A
Cited
US3003995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |