US3733373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly-1-butene resins
Assignee: Eastman Kodak Co
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Filing: 1971-04-01
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Granted: 1973-05-15
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Expires: 1991-04-01
Abstract
Abstract IMPROVED MOLDING RESINS COMPRISING A BLEND OF (A) ABOUT 70 TO 99.9% BY WEIGHT OF A SUBSTANTIALLY CRYSTALLIZABLE POLYMER OF 1-BUTENE SELECTED FROM HOMOPOLYMERS OF 1-BUTENE AND COPOLYMERS OF 1-BUTENE AND A DISSIMILAR A-OLEFIN OF 2 TO 12 CARBON ATOMS, SAID A-OLEFIN BEING PRESENT IN SAID COPOLYMER IN A CONCENTRATION OF UP TO ABOUT 20% BY WEIGHT AND (B) ABOUT 0.1 TO 30% BY WEIGHT OF A POLYMER OF ETHYLENE SELECTED FROM HOMOPOLYMER OF ETHYLENE AND COPOLYMER OF ETHYLENE AND A HIGHER A-OLEFIN.,, SAID HIGHER A-OLEFIN BEING PRESENT IN SAID COPOLYMER IN A CONCENTRATION OF UP TO ABOUT 10% BY WEIGHT, SAID POLYMER OF ETHYLENE HAVING A DENSITY OF AT LEAST 0.93.
Inventors
- 👤 R Mcconnell
- 👤 D Weemes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:08
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/18; C08L23/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |