US3117946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions comprising ethylene homopolymer and ethylene-styrene copolymer and method of preparing same
Assignee: Union Carbide Corp
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Filing: 1960-01-04
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Granted: 1964-01-14
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Expires: 1980-01-04
Abstract
No abstract record available.
Inventors
- 👤 William F Gorham
- 👤 Alford G Farnham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:35
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/08; C08L23/0807; C08L23/0838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A READILY PROCESSABLE THERMOPLASTIC COMPOSITION COMPRISING PER 100 PARTS BY WEIGHT FROM 20 TO 75 PARTS BY WEIGHT OF ETHYLENE HOMOPOLYMER HAVING A MELT INDEX OF LESS THAN ABOUT 10 AND A DENSITY FROM 0.92 TO 0.96 BLENDED WITH FROM 80 TO 25 PARTS BY WEIGHT OF A FRACTIONABLE STYRENE-ETHYLENE COPOLYMER HAVING A 10 P MELT FLOW AT 190*C. OF FROM 1 TO 10 DECIGRAMS PER MINUTE AND CONTAINING AT LEAST 20% COPOLYMERIZED STYRENE, ONE FRACTION OF SAID COPOLYMER BEING INSOLUBLE IN TOLUENE AND COMPRISING 50 TO 75% BY WEIGHT OF SAID COPOLYMER.
Claim 2
Dependent Claim
93 words
A READILY PROCESSABLE THERMOPLASTIC COMPOSITION COMPRISING PER 100 PARTS BY WEIGHT FROM 20 TO 75 PARTS BY WEIGHT OF ETHYLENE HOMOPOLYMER HAVING A MELT INDEX OF LESS THAN ABOUT 10 AND A DENSITY FROM 0.92 TO 0.96 BLENDED WITH FROM 80 TO 25 PARTS BY WEIGHT OF A FRACTIONABLE STYRENE-ETHYLENE COPOLYMER HAVING A 10 P MELT FLOW AT 190*C. OF FROM 1 TO 10 DECIGRAMS PER MINUTE AND CONTAINING AT LEAST 20% COPOLYMERIZED STYRENE, ONE FRACTION OF SAID COPOLYMER BEING INSOLUBLE IN TOLUENE AND COMPRISING 50 TO 75% BY WEIGHT OF SAID COPOLYMER.
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) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |