US2559645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of blending polyethylene-amorphous petroleum wax compositions
Assignee: Shell Development Co
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Filing: 1946-12-26
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Granted: 1951-07-10
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Expires: 1966-12-26
Abstract
No abstract record available.
Inventors
- 👤 Robert G Larsen
- 👤 August A Schaerer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:58
CPC Classifications
C; C09; C09D; C09D191/00; C09D191/06; C09D191/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE METHOD OF PREPARING A WAX COMPOSITION CONTAINING AN ETHYLENE POLYMER HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM ABOUT 6.000 TO ABOUT 140,000 WHICH COMPRISES; FORMING A HOMOGENEOUS BLEND OF AN ETHYLENE POLYMER HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM ABOUT 6,000 TO ABOUT 140,000 WITH APPROXIMATELY AN EQUAL AMOUNT OF AN AMORPHOUS PETROLEUM WAX HAVING A MELTING POINT BETWEEN ABOUT 40* C. AND ABOUT 88* C. AT A TEMPERATURE ABOVE THE MELTING POINT OF SAID WAX AND THEN IMCORPORATING WITH SAID BLEND AT A TEMPERATURE ABOVE THE MELTING POINT OF SAID WAX AN ADDITION AMOUNT OF SAID WAX TO OBTAIN A HOMOGENOUS WAX COMPOSITION.
Claim 2
Independent Claim
105 words
THE METHOD OF PREPARING A WAX COMPOSITION CONTAINING AN ETHYLENE POLYMER HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM ABOUT 6.000 TO ABOUT 140,000 WHICH COMPRISES; FORMING A HOMOGENEOUS BLEND OF AN ETHYLENE POLYMER HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM ABOUT 6,000 TO ABOUT 140,000 WITH APPROXIMATELY AN EQUAL AMOUNT OF AN AMORPHOUS PETROLEUM WAX HAVING A MELTING POINT BETWEEN ABOUT 40* C. AND ABOUT 88* C. AT A TEMPERATURE ABOVE THE MELTING POINT OF SAID WAX AND THEN IMCORPORATING WITH SAID BLEND AT A TEMPERATURE ABOVE THE MELTING POINT OF SAID WAX AN ADDITION AMOUNT OF SAID WAX TO OBTAIN A HOMOGENOUS WAX COMPOSITION.
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) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |