US3045001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization process
Assignee: Shell USA Inc
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Filing: 1958-03-24
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Granted: 1962-07-17
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Expires: 1978-03-24
Abstract
No abstract record available.
Inventors
- 👤 Richard S Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:56
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A PROCESS FOR POLYMERIZING ALPHA, BETA-ETHYLENICALLY UNSATURATED HYDROCARBONS CONTAINING UP TO 8 CARBON ATAOMS WHICH COMPRISES CONTACTING THE COMPOUND WITH (1) .1% TO 5% BY WEIGHT OF A PREFORMED SOLID ADDITION PRODUCT OF A TITANIUM HALIDE AND AHYDROCARBON SUBSTITUTE WITH A LEAST ONE NITRO GROUP, AND (2) AN ALMINUM ALKYL WHEREIN THE ALKYL RADICAL CONTAINS UP TO 8 CARBON ATOMS, THE ALUMINUM IN THE ALUMINUM ALKYL AND THE METAL IN THE TRANSITION METAL HALIDE PORTION OF THE ADDITION PRODUCT BEING PRESENT IN A RATIO OF ABOUT 1:1 TO 10:1, AND MAINTAINING THE MIXTURE IN AN INERT ATMOSPHERE AND ANHYDROUS CONDITIONS AND AT A TEMPERATURE BETWEEN 0*C. AND 100* C. AND A PRESSURE UP TO 1000 P.S.I. UNTIL THE UNSATURATED HYDROCARABON HAS BEEN POLYMERIZED.
Claim 2
Dependent Claim
123 words
A PROCESS FOR POLYMERIZING ALPHA, BETA-ETHYLENICALLY UNSATURATED HYDROCARBONS CONTAINING UP TO 8 CARBON ATAOMS WHICH COMPRISES CONTACTING THE COMPOUND WITH (1) .1% TO 5% BY WEIGHT OF A PREFORMED SOLID ADDITION PRODUCT OF A TITANIUM HALIDE AND AHYDROCARBON SUBSTITUTE WITH A LEAST ONE NITRO GROUP, AND (2) AN ALMINUM ALKYL WHEREIN THE ALKYL RADICAL CONTAINS UP TO 8 CARBON ATOMS, THE ALUMINUM IN THE ALUMINUM ALKYL AND THE METAL IN THE TRANSITION METAL HALIDE PORTION OF THE ADDITION PRODUCT BEING PRESENT IN A RATIO OF ABOUT 1:1 TO 10:1, AND MAINTAINING THE MIXTURE IN AN INERT ATMOSPHERE AND ANHYDROUS CONDITIONS AND AT A TEMPERATURE BETWEEN 0*C. AND 100* C. AND A PRESSURE UP TO 1000 P.S.I. UNTIL THE UNSATURATED HYDROCARABON HAS BEEN POLYMERIZED.
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) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |