US3358053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystalline propylene polymer, containing 4-10% ethylene, blended with linear polyethylene
Assignee: Individual
•
Filing: 1964-11-09
•
Granted: 1967-12-12
•
Expires: 1984-11-09
Abstract
No abstract record available.
Inventors
- 👤 Donald E Hostetler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:15
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08L23/14; C08L23/142; C08F; C08F10/00; C08F10/04; C08F10/06; C08F297/00; C08F297/06; C08F297/08; C08F297/083; C08L53/00; C08F210/00; C08F210/04; C08F210/06; C08L23/04; C08L23/08; C08L23/0807; C08L23/0815
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A SUBSTANTIALLY CRYSTALLINE COMPOSITION CONSISTING ESSENTIALLY OF A HOMOGENEOUS BLEND OF A SUBSTANTIALLY CRYSTALLINE ETHYLENE-PROPYLENE COPOLYMER WITH LINEAR POLYETHYLENE; THE POLYETHYLENE EMPLOYED IN AN AMOUNT OF 1 TO 50 WEIGHT PERCENT OF THE COMBINED WEIGHT OF COPOLYMER AND POLYETHYLENE; THE COPOLYMER CONTAINING FROM ABOUT 4 TO 10 WEIGHT PRCENT OF ETHYLENE AND HAVING AN INTRINSIC VISCOSITY OF BETWEEN ABOUT 1.0 TO ABOUT 8.0 AND A NOTCHED IMPACT BRITTLENESS OF ABOUT +6*C. AND BELOW; THE LINEAR POLYETHYLENE HAVING A DENSITY OF 0.93 TO 0.96 AND A MELT INDEX OF SUBSTANTIALLY 0; SAID COMPOSITION HAVING A CRYSTALLINE MELTING POINT OF AT LEAST 150*C. AND A TENSILE IMPACT IN FT. LBS./IN.2 ABOVE ABOUT 100.
Claim 2
Dependent Claim
111 words
A SUBSTANTIALLY CRYSTALLINE COMPOSITION CONSISTING ESSENTIALLY OF A HOMOGENEOUS BLEND OF A SUBSTANTIALLY CRYSTALLINE ETHYLENE-PROPYLENE COPOLYMER WITH LINEAR POLYETHYLENE; THE POLYETHYLENE EMPLOYED IN AN AMOUNT OF 1 TO 50 WEIGHT PERCENT OF THE COMBINED WEIGHT OF COPOLYMER AND POLYETHYLENE; THE COPOLYMER CONTAINING FROM ABOUT 4 TO 10 WEIGHT PRCENT OF ETHYLENE AND HAVING AN INTRINSIC VISCOSITY OF BETWEEN ABOUT 1.0 TO ABOUT 8.0 AND A NOTCHED IMPACT BRITTLENESS OF ABOUT +6*C. AND BELOW; THE LINEAR POLYETHYLENE HAVING A DENSITY OF 0.93 TO 0.96 AND A MELT INDEX OF SUBSTANTIALLY 0; SAID COMPOSITION HAVING A CRYSTALLINE MELTING POINT OF AT LEAST 150*C. AND A TENSILE IMPACT IN FT. LBS./IN.2 ABOVE ABOUT 100.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |