US3136735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition of carbonamides to polyethylene to increase abrasion resistance
Assignee: Polymer Corp
•
Filing: 1957-10-02
•
Granted: 1964-06-09
•
Expires: 1977-10-02
Abstract
No abstract record available.
Inventors
- 👤 Louis L Stott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:13
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A COMPOSITION FOR USE IN FORMING ABRASION RESISTANT ARTICLES COMPRISING A MIXTURE OF A FINELY DIVIDED SYNTHETIC LINEAR POLYMERIC CARBONAMIDE WHICH CONTAINS RECURRING CARBONAMIDE GROUPS AS AN INTEGRA PART OF THE MAIN POLYMER CHAIN SEPARATED BY AT LEAST TWO CARBON ATOMS AND POLYETHYLENE, THE COMPOSITION CONTAINING A SUFFICIENT AMOUNT OF HTE CARBONAMIDE TO MATERIALLY INCREASE THE ABRASION RESISTANCE OF AN ARTICLE FORMED FROM THE COMPOSITION AS COMPARED TO AN ARTICLE FORMED FROM POLYETHYLENE, BUT NOT MORE THAN ABOUT 25% BY WEIGHT OF SAID MIXTURE.
Claim 2
Dependent Claim
84 words
A COMPOSITION FOR USE IN FORMING ABRASION RESISTANT ARTICLES COMPRISING A MIXTURE OF A FINELY DIVIDED SYNTHETIC LINEAR POLYMERIC CARBONAMIDE WHICH CONTAINS RECURRING CARBONAMIDE GROUPS AS AN INTEGRA PART OF THE MAIN POLYMER CHAIN SEPARATED BY AT LEAST TWO CARBON ATOMS AND POLYETHYLENE, THE COMPOSITION CONTAINING A SUFFICIENT AMOUNT OF HTE CARBONAMIDE TO MATERIALLY INCREASE THE ABRASION RESISTANCE OF AN ARTICLE FORMED FROM THE COMPOSITION AS COMPARED TO AN ARTICLE FORMED FROM POLYETHYLENE, BUT NOT MORE THAN ABOUT 25% BY WEIGHT OF SAID MIXTURE.
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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |