US3176052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of polyethylene and ethylene copolymers
Assignee: EIDP Inc
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Filing: 1960-08-08
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Granted: 1965-03-30
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Expires: 1980-08-08
Abstract
No abstract record available.
Inventors
- 👤 Peticolas Warner Leland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:50
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/08; C08L23/0807; C08L23/0815
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
A HOMOGENEOUS POLYOLEFIN BLEND COMPRISING FROM 10 TO 60 WEIGHT PERCENT OF POLYETHYLENE, PREPARED BY FREE RADICAL INITIATED POLYMERIZATION, HAVING AN ANNEALED DENSITY OF 0.910 G./CC. TO 0.940 G./CC. AND 90 TO 40 WEIGHT PERCENT OF A COPOLYMER OF ETHYLENE AND AN A-OLEFIN, SAID A-OLEFIN BEING A MEMBER SELECTED FROM THE GROUP CONSISTING OF BUTENE-1, OCTENE-1 AND DECENE-1 AND BEING PRESENT IN SAID COPOLYMER IN A CONCENTRATION OF 1 TO 10 WEIGHT PERCENT, SAID POLYETHYLENE HAVING A MELT INDEX OF 0.1 TO 20 G./10 MIN. AND SAID COPOLYMER HAVING A MELT INDEX OF 0.01 TO 10 G./10 MIN., THE MELT INDEX OF THE COPOLYMER BEING LOWER THAN THE MELT INDEX OF THE POLYETHYLENE.
References Cited (Backward Citations)
CA602151A
Cited
US2563631A
Cited
US2791576A
Cited
US2928756A
Cited
FR1240852A
Cited
US2983704A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |