US3597382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carboxyl-containing ethylene copolymers
Assignee: Union Carbide Corp
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Filing: 1967-10-30
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Granted: 1971-08-03
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Expires: 1987-10-30
Abstract
Abstract THE SLIP PROPERTIES OF BOTH CARBOXYL C ONTAINING ETHYLENE POLYMERS CONTAINING FROM ABOUT 2 TO 25% BY WEIGHT OF AN A, B-ETHYLENICALLY UNSATURATED CARBOXYLIC ACID AND ALKALI METAL, ALKALINE EARTH, OR ZINC SALTS, OF THESE COPOLYMERS HAVE BEEN IMPROVED BY INCORPORATING THEREIN FROM ABOUT 0.02 TO 1.0% BY WEIGHT OF SECONDARY FATTY ACID AMIDES CONTAINING FROM ABOUT 20 TO 24 CARBON ATOMS AND IN WHICH THE NITROGEN ATOM IS SUBSTITUTED WITH A SATURATED HYDROCARBON RADICAL HAVING FROM 14 TO 26 CARBON ATOMS.
Inventors
- 👤 George N Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:43
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20
Claims Analysis
Total Claims: 0
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References 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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |