US2882246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethylene-wax composition and process of blending same
Assignee: Phillips Petroleum Co
•
Filing: 1954-06-01
•
Granted: 1959-04-14
•
Expires: 1974-06-01
Abstract
No abstract record available.
Inventors
- 👤 Gerald T Leatherman
- 👤 Clyde V Detter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:30
CPC Classifications
C; C08; C08L; C08L91/00; C08L91/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A COMPOSITION COMPRISING A MAJOR PROPORTION OF A WAX HAVING A MELTING POINT OF AT LEAST 100*F., SELECTED FROM THE GROUP CONSISTING OF PARAFFIN WAX, CANDELLIA WAX, CARNAUBA WAX, MOTION WAX AND SPERMACETI WAX, AND FROM 0.1 TO 10 PERCENT BY WEIGHT OF A SOLID POLYETHYLENE PRODUCED BY POLMERIZING EHTYLENE IN THE PRESENCE OF A CATALYST CONSISTING OF CHROMIUM OXIDE, CONTAINING HEXAVALENT CHROMIUM SUPPORTED ON AT LEAST ONE OXIDE SELECTED FROM THE GROUP CONSISTING OF SILICA AND ALUMINA SAID POLYETHYLENE HAVING A DENSISTY IN THE RANGE OF 0.92 TO 0.97 AND A MELTING POINT IN THE RANGE OF 235TO 260*F.
Claim 2
Dependent Claim
100 words
A COMPOSITION COMPRISING A MAJOR PROPORTION OF A WAX HAVING A MELTING POINT OF AT LEAST 100*F., SELECTED FROM THE GROUP CONSISTING OF PARAFFIN WAX, CANDELLIA WAX, CARNAUBA WAX, MOTION WAX AND SPERMACETI WAX, AND FROM 0.1 TO 10 PERCENT BY WEIGHT OF A SOLID POLYETHYLENE PRODUCED BY POLMERIZING EHTYLENE IN THE PRESENCE OF A CATALYST CONSISTING OF CHROMIUM OXIDE, CONTAINING HEXAVALENT CHROMIUM SUPPORTED ON AT LEAST ONE OXIDE SELECTED FROM THE GROUP CONSISTING OF SILICA AND ALUMINA SAID POLYETHYLENE HAVING A DENSISTY IN THE RANGE OF 0.92 TO 0.97 AND A MELTING POINT IN THE RANGE OF 235TO 260*F.
References Cited (Backward Citations)
US2560773A
Cited
US2559645A
Cited
US2523705A
Cited
US2601109A
Cited
US2666756A
Cited
US2706719A
Cited
US2691647A
Cited
US2725374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |