US2658048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic compositions and articles produced therefrom
Assignee: Visking Corp
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Filing: 1951-10-10
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Granted: 1953-11-03
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Expires: 1971-10-10
Abstract
No abstract record available.
Inventors
- 👤 Ralph J Signer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:50
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08K; C08K5/00; C08K5/04; C08K5/07; C08L2205/00; C08L2205/06; C08L9/00; C08L9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A COMPOSITION FOR PRODUCING, BY HOT-MELT EXTRUSION, ARTICLES SUBSTANTIALLY FREE OF THE TENDENCY TO BLOCK AND COMPRISING HALOGEN-CONTAINING VINYL RESIN, NITRILE RUBBER IN AN AMOUNT NOT MORE THAN SAID VINYL RESIN, SAID NITRILE RUBBER BEING FORMED OF 40% TO 75% OF BUTADIENE 1,3 AND CORRESPONDINGLY 60% TO 25% OF ACRYLONITRILE, AND AN ANTIBLOCKING AGENT WHICH ALSO ACTS AS A LUBRICANT DURING THE MELT EXTRUSION OPERATION CONSISTING OF STEARONE IN AN AMOUNT EQUAL TO 1 1/2% TO 4% BY WEIGHT OF THE COMBINED AMOUNTS OF SAID VINYL RESIN AND NITRILE RUBBER, SAID COMPOSITION BEING FREE OF VOLATILE SOLVENTS.
Claim 2
Dependent Claim
97 words
A COMPOSITION FOR PRODUCING, BY HOT-MELT EXTRUSION, ARTICLES SUBSTANTIALLY FREE OF THE TENDENCY TO BLOCK AND COMPRISING HALOGEN-CONTAINING VINYL RESIN, NITRILE RUBBER IN AN AMOUNT NOT MORE THAN SAID VINYL RESIN, SAID NITRILE RUBBER BEING FORMED OF 40% TO 75% OF BUTADIENE 1,3 AND CORRESPONDINGLY 60% TO 25% OF ACRYLONITRILE, AND AN ANTIBLOCKING AGENT WHICH ALSO ACTS AS A LUBRICANT DURING THE MELT EXTRUSION OPERATION CONSISTING OF STEARONE IN AN AMOUNT EQUAL TO 1 1/2% TO 4% BY WEIGHT OF THE COMBINED AMOUNTS OF SAID VINYL RESIN AND NITRILE RUBBER, SAID COMPOSITION BEING FREE OF VOLATILE SOLVENTS.
References Cited (Backward Citations)
US2098537A
Cited
US2445727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |