US2824090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of alpha-olefins with a catalyst mixture of an orthotitanate and an alkyl aluminum halide
Assignee: Eastman Kodak Co
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Filing: 1955-12-27
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Granted: 1958-02-18
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Expires: 1975-12-27
Abstract
No abstract record available.
Inventors
- 👤 Marvin B Edwards
- 👤 Jr Hugh J Hagemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:41
CPC Classifications
C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S260/00; Y10S260/25; Y10S8/00; Y10S8/09; Y10S8/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
54 words
IN THE POLYMERIZATION OF AT LEAST ONE ALIPHATIC C2-C10 A-MONOOLEFIN TO FORM SOLID POLYMER, THE IMPROVEMENT WHICH COMPRISES EFFECTING THE POLYMERIZATION AT 20-130*C. IN THE PRESENCE OF A CATALYTIC MIXTURE OF A TETRAALKYL ORTHOTINATE WHEREIN EACH ALKYL GROUP CONTAINS 8-13 CARBON ATOMS AND ALKYL ALUMINUM HALIDE WHEREIN EACH ALKYL GROUP CONTAINS 2-12 CARBON ATOMS.
Claim 2
Dependent Claim
54 words
IN THE POLYMERIZATION OF AT LEAST ONE ALIPHATIC C2-C10 A-MONOOLEFIN TO FORM SOLID POLYMER, THE IMPROVEMENT WHICH COMPRISES EFFECTING THE POLYMERIZATION AT 20-130*C. IN THE PRESENCE OF A CATALYTIC MIXTURE OF A TETRAALKYL ORTHOTINATE WHEREIN EACH ALKYL GROUP CONTAINS 8-13 CARBON ATOMS AND ALKYL ALUMINUM HALIDE WHEREIN EACH ALKYL GROUP CONTAINS 2-12 CARBON ATOMS.
Claim 3
Dependent Claim
59 words
AS A CATALYST FOR POLYMERIZATION OF NORMALLY GASEOUS A-MONOOLEFINS, A MIXTURE IN A MOLAR RATIO OF FROM 1:4 TO 32:1 OF AT LEAST ONE ALKYL ALUMINUM HALIDE FROM THE GROUP CONSISTING OF DIALKYL ALUMINUM MONOHALIDES AND MONOIALKYL ALUMINUM DIHALIDES WHEREIN EACH ALKYL GROUP CONTAINS 2-12 CARBON ATOMS AND A TERTAALKYL ORTHOTITANATE WHEREIN EACH ALKYL GROUP CONTAINS 8-13 CARBON ATOMS.
Claim 4
Dependent Claim
59 words
AS A CATALYST FOR POLYMERIZATION OF NORMALLY GASEOUS A-MONOOLEFINS, A MIXTURE IN A MOLAR RATIO OF FROM 1:4 TO 32:1 OF AT LEAST ONE ALKYL ALUMINUM HALIDE FROM THE GROUP CONSISTING OF DIALKYL ALUMINUM MONOHALIDES AND MONOIALKYL ALUMINUM DIHALIDES WHEREIN EACH ALKYL GROUP CONTAINS 2-12 CARBON ATOMS AND A TERTAALKYL ORTHOTITANATE WHEREIN EACH ALKYL GROUP CONTAINS 8-13 CARBON ATOMS.
References Cited (Backward Citations)
US1914557A
Cited
US1793935A
Cited
US2338428A
Cited
US2666756A
Cited
US2713044A
Cited
BE534792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |