US3247290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion coating resin comprising a blend of low density polyethylene and thermally degraded high density polyethylene
Assignee: Phillips Petroleum Co
•
Filing: 1961-07-13
•
Granted: 1966-04-19
•
Expires: 1981-07-13
Abstract
No abstract record available.
Inventors
- 👤 Robert T Werkman
- 👤 Clyde V Detter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:20
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/22; C; C08; C08F; C08F8/00; C08F8/50; C09; C09D; C09D123/00; C09D123/02; C09D123/04; C08F2810/00; C08F2810/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A COATING RESIN COMPRISING A BLEND OF (A) ABOUT 80 TO 95 WEIGHT PARTS PER 100 PARTS OF THE BLEND OF A THERMALLY DEGRADED POLYMER OF ETHYLENE HAVING A DENSITY IN THE RANGE 0.940 TO 0.990 GM./CC. AND (B) ABOUT 5 TO 20 WEIGHT PARTS OF A POLYMER OF ETHYLENE HAVING A DENSITY OF LESS THAN 0.930 GM./CC. SAID BLEND HAVING A DENSITY IN THE RANGE OF 0.950 TO 0.965 GM./CC., A MELT INDEX OF 5 TO 20 AND A CIL FLOW CURVE SLOPE OF 1.5 TO 1.9.
Claim 2
Dependent Claim
88 words
A COATING RESIN COMPRISING A BLEND OF (A) ABOUT 80 TO 95 WEIGHT PARTS PER 100 PARTS OF THE BLEND OF A THERMALLY DEGRADED POLYMER OF ETHYLENE HAVING A DENSITY IN THE RANGE 0.940 TO 0.990 GM./CC. AND (B) ABOUT 5 TO 20 WEIGHT PARTS OF A POLYMER OF ETHYLENE HAVING A DENSITY OF LESS THAN 0.930 GM./CC. SAID BLEND HAVING A DENSITY IN THE RANGE OF 0.950 TO 0.965 GM./CC., A MELT INDEX OF 5 TO 20 AND A CIL FLOW CURVE SLOPE OF 1.5 TO 1.9.
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |