US2970179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of butene polymers
Assignee: California Research LLC
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Filing: 1959-06-29
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Granted: 1961-01-31
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Expires: 1979-06-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry S Glaze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:47
CPC Classifications
C; C08; C08F; C08F240/00; Y; Y10; Y10S; Y10S585/00; Y10S585/949; Y10S585/952
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN A PROCESS FOR PRODUCING BUTENE POLYMERS OF HIGH VISCOSITY BY CONTACTING IN LIQUID PHASE A BUTENECONTAINING HYDROCARBON FEED WITH ALUMINUM CHLORIDE IN A REACTION ZONE, PASSING THE EFFLUENT FROM THE REACTION ZONE COMPRISING BUTENE POLYMERS, UREACTED HYDROCARBONS, AND ALUMINUM-CONTAINING TARS INTO A SETTING ZONE TO SEPERATE A HYDROCARBON PHASE AND AN ALUMINUN CHLORIDE TAR PHASE, AND DISTILLING THE HYDROCARBON PHASE TO SEPARATE UNREACTED HYDROCARBONS OVERHEAD AND BUTENE POLYMERS AS A BOTTOMS PRODUCT, THE METHOD OF PRODUING A BUTENE BOTTOMS PRODUCT HAVING A NARROW RANGE OF POLYMER MOLECULAR WEIGHTS WHICH COMPRISES INTRODUCING A MONOR AMOUNT OF SULFUR DIOXIDE INTO THE EFFLUENT FROM
Claim 2
Dependent Claim
102 words
IN A PROCESS FOR PRODUCING BUTENE POLYMERS OF HIGH VISCOSITY BY CONTACTING IN LIQUID PHASE A BUTENECONTAINING HYDROCARBON FEED WITH ALUMINUM CHLORIDE IN A REACTION ZONE, PASSING THE EFFLUENT FROM THE REACTION ZONE COMPRISING BUTENE POLYMERS, UREACTED HYDROCARBONS, AND ALUMINUM-CONTAINING TARS INTO A SETTING ZONE TO SEPERATE A HYDROCARBON PHASE AND AN ALUMINUN CHLORIDE TAR PHASE, AND DISTILLING THE HYDROCARBON PHASE TO SEPARATE UNREACTED HYDROCARBONS OVERHEAD AND BUTENE POLYMERS AS A BOTTOMS PRODUCT, THE METHOD OF PRODUING A BUTENE BOTTOMS PRODUCT HAVING A NARROW RANGE OF POLYMER MOLECULAR WEIGHTS WHICH COMPRISES INTRODUCING A MONOR AMOUNT OF SULFUR DIOXIDE INTO THE EFFLUENT FROM
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) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |